Integration of Piezoceramic Modules into Die Castings Procedure and Functionalities
|
|
- Jody Washington
- 5 years ago
- Views:
Transcription
1 Advances in Science and Technology Online: ISSN: , Vol. 56, pp doi: / Trans Tech Publications, Switzerland Integration of Piezoceramic Modules into Die Castings Procedure and Functionalities Matthias Rübner 1, a, Carolin Körner 1, b, Robert F. Singer 1, c 1 Institute of Science and Technology of Metals (WTM), University of Erlangen, Germany a matthias.ruebner@ww.uni-erlangen.de, b carolin.koerner@ww.uni-erlangen.de, c robert.singer@ww.uni-erlangen.de Keywords: Integration, high pressure die casting, piezoceramic sensor/actuator-module Abstract The complete integration of piezoceramic sensor/actuator-modules into metal components using high pressure die casting is a promising approach for the fabrication of multifunctional structural elements with enhanced properties. A technique providing stabilization and protection of the module during the highly dynamic mould filling is presented. Demonstration parts are produced which are fully capable to detect vibrations. An approach to characterize this sensory functionality of the adaptronic system is presented. Introduction Lightweight construction is a trend to save weight and hence to reduce fuel consumption. The use of light metals like aluminium or magnesium is one possibility to realize weight reduction. Unfortunately, this results in a vibration and noise increase [1] of light metal parts. The combination of functional modules, e.g. piezoceramic sensor/actuator-modules, and structural components is one opportunity to create parts with the ability of sensing and reducing vibrations [2]. A really simple way to connect sensor/actuator-modules with structural components is to bond them with an adhesive layer onto the surface of the component [3, 4]. However, there are several disadvantages using this method. In a rough environment as it appears in automotive applications, the module needs to be protected against external influences like humidity or foreign object damage. The state of the adhesive layer is also subjected by environmental influences, e. g. the temperature and the adhesive bonding is an additional production step which increases costs. In this contribution a new method for the integration of sensor/actuator-modules into light metal structural components is presented. The technology is based on high pressure die casting, which is established for mass production of light metal parts. The integration of the sensor/actuator-module proceeds during the part fabrication and no additional processing step is required. The modules basically consisting of a piezoceramic plate embedded in polyimide are commercially available. Amazingly, the polymer insulation is completely intact after the integration process although it got in contact with the liquid metal. In addition, the sensory functionality is still remained. Fabrication process High pressure die casting involves the injection of molten metal into a permanent mould at high pressure and velocity. Due the short cycle time it is the most commonly used process for mass production of thin walled light metal components requiring high dimensional accuracy and surface quality. Figure 1 shows schematically the procedure of high pressure die casting. First, the molten metal with a temperature between 600 C and 740 C is filled from an external crucible into a shot chamber using a feeding system. Secondly, the liquid metal is pressed into the mould cavity by moving the plunger with a velocity between 1 m/s and 6 m/s. Because of the small cross section at All rights reserved. No part of contents of this paper may be reproduced or transmitted in any form or by any means without the written permission of Trans Tech Publications, (# , Pennsylvania State University, University Park, USA-19/09/16,08:23:56)
2 Advances in Science and Technology Vol the gate the melt is accelerated to a velocity of far above 100 m/s. After the die is filled in less than 50 ms a dwell pressure of several 100 bar is applied to reduce porosity and compensate shrinkage [5]. At last removing from the mould takes place after less than 60 s depending on the component geometry. Fig. 1: Scheme of a die casting machine. The plunger injects the liquid metal with high pressure and velocity into a permanent mould. The die casting unit FRECH DAK with a locking pressure of 450 tons is used for the experimental work. In addition, a vacuum system is integrated to minimize the air pressure in the cavity in order to reduce gas porosity in the casting [6]. For the experiments quadratic components are produced with an edge length of 178 mm and a thickness of 3.5 mm. They consists of the standard aluminium die casting alloy 226D (AlSi9Cu3(Fe)). The used sensor-/actuator-modules are piezoelectric d 31 patch transducers (brand name: DurAct, distributor: PI Ceramic GmbH, Lederhose, Germany) which are commercially available (figure 2). The main element is an electroded monolithic PZT plate of 28 x 14 x 0.2 mm 3. The electrical connection guarantees a flexible copper mesh on both sides of the ceramic. For thermal and electrical insulation the ceramic as well as the electrical connection are fully embedded into a polyimide matrix. Additionally, the polymer structure acts as mechanical stabilizer for the ceramic. Fig. 2: Schematic assembly of a piezoceramic sensor-/actuator-module (left) [7]. The electroded ceramic together with the electrical connection is completely embedded into polyimide. Macroscopic view of a commercially available sensor-/actuator-module (right). Support technique The temperature of the liquid metal and the dynamic die filling effectuate a high mechanical and thermal load to the module. Therefore, the integration of sensor/actuator-modules can only be realized by using a supporting structure to avoid damage. There are two main requirements to the supporting structure. First, the modules need to be fixed in the cavity without any direct contact to the die wall, because a complete encasing with aluminium is
3 172 Emboding Intelligence in Structures and Integrated Systems desired. Secondly, positioning of the modules outside the neutral axis of the cast component needs to be possible for adaptronic purposes. Our approach to secure the modules against the loads in the die cavity is to surround them with expanded metal consisting of pure aluminium [8]. During die filling, the melt penetrates the expanded metal on both sides without deforming it. Thus, the modules are completely encased by the metal and kept at a certain position. The concept is shown in figure 3. Fig. 3: The package of the sensor/actuator-module and the surrounding expanded metal is applied onto ejector pins in the opened die. The contacts shear off when the die is closed. For holding the package consisting of module and expanded metal in the die cavity it is attached to two ejector pins protruding into the die cavity. If the package thickness is marginal larger than the cavity thickness, an additional clamping force appears after the die is closed which contributes to the fixing of the package. An excentric placement of the sensor/actuator-modules can be realized by using geometric different types of expanded metal. The thickness of these types defines the distance between the die wall and the module. Figure 4 shows schematically the arrangement for centric and excentric positioning of the module. As expanded metal is commercially offered in a multiplicity of geometries, this technique can be adopted to a large variety of thin walled castings. Fig 4: Scheme of the support technique for centric (left) and excentric (right) placement of the module. By using geometrical different types of expanded metal on both sides of the module the excentric placement can be realized. For the experiments discussed in this paper 3.5 mm thick castings with centric (a=b=1.5 mm) and excentric (a=2 mm, b=1 mm) placement of the module are produced. As reference samples act castings with modules bonded onto the surface. Module integration In figure 5 a section of a casting with integrated module is shown. For contacting the module a small range of the casting edge has to be dismantled to lay open the connecting wires. The expanded metal is completely infiltrated with aluminium. On the surface just areas are visible where the expanded metal is in contact with the die wall during the integration process.
4 Advances in Science and Technology Vol Fig. 5: Cast part (thickness: 3.5 mm) with integrated sensor/actuator-module. The module is integrated in the indicated area. The non-destructive testing by x-raying an integrated module (figure 6) with an ndt-analyser of the phoenix x-ray company shows, that the contacts with the soldered wires are still interconnected with the PZT-plate by the flexible copper mesh. The dark spots in the area of the contacts are spillings of the soldering joints. The time of appearance of these spillings is not known up to now. Fig. 6: X-ray images of a casting with integrated module. In spite of the high mechanical load the PZT-ceramic is still in a good order. The right image shows the contacts and the flexible coppermesh with spillings of melted solder. The cross section of the active area and the connecting wire in the integrated state is shown in figure 7. No damage of the module is viewable. For insulation the wire is also surrounded by two or three layers of a thin polyimide film. Fig. 7: Cross section of an active area and a connection wire of an integrated module. No damage of the thermal and electrical polyimide (PI) insulation is visible. Surprisingly, the polyimide encapsulation for both ceramic and wire is still retained after the integration. Electrical measurements confirm the preservation of the electrical insulation of modules and connecting wires against the metal matrix. A dielectric breakdown can not be provoked by
5 174 Emboding Intelligence in Structures and Integrated Systems applying the maximum operation voltage of 400 V. This is precondition for the functionality because of the electrical conductivity of the metal matrix. Sensory functionality For measurement of the sensory functionality of the integrated sensor/actuator-modules the castings are fixed in a clamping unit at one end and excited to vibration by an impulse added at the free end of the cast parts. The measuring setup and the developing of the voltage signal versus time are shown in figure 8. The measurement is performed without repolarisation of the modules after the integration process. Fig. 8: Measuring setup and resulting voltage signal for analysing the sensory functionality of an integrated module. A variety of small mechanical impulses with an excitation time of 100 ms is applied. The first peak of the voltage signal represents the first bending of the casting. The maximum of this peak is taken as parameter for the evaluation of the sensory functionality depending on the placement of the module inside the component. The effects of impulse variation and position of the module are shown in figure 9. Fig 9: Sensory functionality of the structural components with the integrated modules depending on impulse strength and module placement (bonded: lever arm = 2 mm, excentric: lever arm 0.5 mm, centric: lever arm 0 mm).
6 Advances in Science and Technology Vol A linear correlation between strength of impulse and voltage signal for both bonded onto the surface and integrated is visible. An impulse increase about 20% results in a 20% increase of the voltage signal. The excentric placed modules generate a voltage which is several times higher than the voltage of the centric placed modules. Due to the parallel developing an equation for the estimation of the real lever arm of the integrated modules x integrated can be formed x integrated U integrated = x bonded. (1) U bonded x bonded : lever arm of the bonded module, U integrated : voltage signal of the integrated module, U bonded : voltage signal of the integrated module. With this equation a lever arm of 0.55 mm for the excentric placed modules can be calculated (theoretic: 0.5 mm). As the centric integrated modules also generate a small voltage signal it s possible to estimate a lever arm of 0.08 mm. Hence, an exact positing of the modules, e.g. centric is almost impossible because the packages consisting of module and expanded metal are currently produced manually. Consequently, the maximum deviation from the desired module placement can be mentioned as round about ±0.1 mm. Conclusion High pressure die casting is a suitable process for the integration of piezoceramic sensor/actuatormodules into light metal structural components. The development of an adapted support technique using expanded metal consisting of aluminium ensures a complete integration of the modules and provides the possibility of a module placement outside the neutral axis. Astonishingly, commercially available sensor/actuator-modules with their polyimide embedding are still electrical insulated after the integration process. The sensory functionality is still remained in the integrated state without repolarisation of the PZT-ceramic. However, an excentric placement of the module is important to get a significant voltage signal. Acknowledgement The authors thank the German Research Foundation (DFG) for its financial support within the transregional collaborative research center SFB/TR 39 production technologies for light metal and fiber reinforced composite based components with integrated piezoceramic sensors and actuators. References [1] Y.H. Guan, T.C. Lim, W.S. Shepard: Jour. of Sound and Vibration Vol. 282 (2005) p [2] J.-C. Lin, M. H. Nien: Jour. of Mater. Processing Technology Vol. 189 (2007) p [3] G. Caruso, S. Galeani, L. Menini: Simul. Model. Practice and Theory Vol. 11 (2003) p [4] K.Y. Kim et al.: Sensors and Actuators A Vol. 120 (2005) p [5] M.S. Dargusch et al.: Jour.of Mater. Processing Technology Vol. 180 (2006) p [6] X. P. Niu, B.H. Hu, I. Pinwill, H. Li: Jour. of Mater. Process. Tech. Vol. 105 (2000) [7] Invent GmbH: data sheet DurAct type P1, Braunschweig, 2007 [8] Patent application DE , 2005
All About Die Casting
All About Die Casting FAQ Introduction Die casting is a versatile process for producing engineered metal parts by forcing molten metal under high pressure into reusable steel molds. These molds, called
More informationMetal Mould System 1. Introduction
Metal Mould System 1. Introduction Moulds for these purposes can be used many times and are usually made of metal, although semi-permanent moulds of graphite have been successful in some instances. The
More informationCASTING Fundamentals. Prepared by Associate Prof. Mohamed Ahmed Awad Cairo, 2014
CASTING Fundamentals Prepared by Associate Prof. Mohamed Ahmed Awad Cairo, 2014 Casting Definition Casting is the process of pouring molten metal into a mould containing a cavity, which represents the
More informationProcessing of Non-Metals Prof. Dr. Inderdeep Singh Department of Mechanical and Industrial Engineering Indian Institute of Technology, Roorkee
Processing of Non-Metals Prof. Dr. Inderdeep Singh Department of Mechanical and Industrial Engineering Indian Institute of Technology, Roorkee Module - 4 Plastics: Properties and Processing Lecture - 5
More informationTwo Categories of Metal Casting Processes
Two Categories of Metal Casting Processes 1. Expendable mold processes - mold is sacrificed to remove part Advantage: more complex shapes possible Disadvantage: production rates often limited by time to
More informationManufacturing: Chapter 3 Casting
CHAPTER THREE Metal Casting Casting, shown in Fig. 3.1, is the process of pouring molten metal into a mould containing a cavity, which represents the required product shape. It is one of the most commonly
More information4.1.3: Shell Casting.
4.1.3: Shell Casting. It is another expandable mold casting type; Shell molding is a casting process in which the mold is a thin shell (typically 9mm) made of sand held together by a thermosetting resin
More informationInternational Foundry Challenge Suitable Production of thin walled Aluminum Prototype and Small Series Castings for Body in White Applications
1 2 International Foundry Challenge Suitable Production of thin walled Aluminum Prototype and Small Series Castings for Body in White Applications Joachim Gundlach, Jörg Detering Contents 3 Company Information
More informationSolidification Process(1) - Metal Casting Chapter 9,10
Solidification Process(1) - Metal Casting Chapter 9,10 Seok-min Kim smkim@cau.ac.kr -1- Classification of solidification processes -2- Casting Process in which molten metal flows by gravity or other force
More informationPermanent Mold Casting Processes. Assoc Prof Zainal Abidin Ahmad Department of Manufacturing & Ind. Eng.
Assoc Prof Zainal Abidin Ahmad Department of Manufacturing & Ind. Eng. Universiti Teknologi Malaysia Permanent Mold Casting Processes Gravity die casting Pressure die casting Low pressure High pressure
More informationSTUDY OF VIBRATION MODAL ESTIMATION FOR COMPOSITE BEAM WITH PZT THIN FILM SENSOR SYSTEM
STUDY OF VIBRATION MODAL ESTIMATION FOR COMPOSITE BEAM WITH PZT THIN FILM SENSOR SYSTEM Nobuo Oshima, Takehito Fukuda and Shinya Motogi Faculty of Engineering, Osaka City University 3-3-38, Sugimoto, Sumiyoshi-ku,
More informationPACKAGING OF STRUCTURAL HEALTH MONITORING COMPONENTS
PACKAGING OF STRUCTURAL HEALTH MONITORING COMPONENTS Seth S. Kessler Metis Design Corporation S. Mark Spearing Massachusetts Institute of Technology Technology Laboratory for Advanced Composites National
More informationActive Vibration Control in Ultrasonic Wire Bonding Improving Bondability on Demanding Surfaces
Active Vibration Control in Ultrasonic Wire Bonding Improving Bondability on Demanding Surfaces By Dr.-Ing. Michael Brökelmann, Hesse GmbH Ultrasonic wire bonding is an established technology for connecting
More informationInvestigation on Sensor Fault Effects of Piezoelectric Transducers on Wave Propagation and Impedance Measurements
Investigation on Sensor Fault Effects of Piezoelectric Transducers on Wave Propagation and Impedance Measurements Inka Buethe *1 and Claus-Peter Fritzen 1 1 University of Siegen, Institute of Mechanics
More informationBMM3643 Manufacturing Processes Metal Casting Processes (Expendable Mold & Permanent Mold)
BMM3643 Manufacturing Processes Metal Casting Processes (Expendable Mold & Permanent Mold) by Dr Mas Ayu Bt Hassan Faculty of Mechanical Engineering masszee@ump.edu.my Chapter Information Lesson Objectives:
More informationSwaroop S. Magdum 1, Baliram R. Jadhav 2 1 Student, M.Tech, Department of Mechanical Engineering, RIT, Sakharale, Sangli, Maharashtra, India.
Design and Development of Casting by Simulation Technique for Yield Improvement in Foundry Industry Swaroop S. Magdum 1, Baliram R. Jadhav 2 1 Student, M.Tech, Department of Mechanical Engineering, RIT,
More informationUniversity of Arizona College of Optical Sciences
University of Arizona College of Optical Sciences Name: Nachiket Kulkarni Course: OPTI521 Topic Plastic Injection Molding Submitted to Prof. J. Burge Date 1. Introduction In daily life, we come across
More informationSpecial Casting Process. 1. Permanent mould casting
Special Casting Process 1. Permanent mould casting A permanent mold casting makes use of a mold or metallic die which is permanent.molten metal is poured into the mold under gravity only and no external
More informationFabrication and application of a wireless inductance-capacitance coupling microsensor with electroplated high permeability material NiFe
Journal of Physics: Conference Series Fabrication and application of a wireless inductance-capacitance coupling microsensor with electroplated high permeability material NiFe To cite this article: Y H
More informationComplete Simulation of High Pressure Die Casting Process
Complete Simulation of High Pressure Die Casting Process Matti Sirviö VTT Industrial Systems, Conrod Team, P.O.Box 1702, FIN-02044 VTT, Finland Tel: +358 9 456 5586, Fax: +358 9 460 627, Matti.Sirvio@vtt.fi,
More informationDesign of Singe Impression Injection Mould for Lower Bearing Cover
Design of Singe Impression Injection Mould for Lower Bearing Cover Vishwanath DC Student, M. Tech Government Tool Room and Training Centre Mysuru, India Abstract Injection moulding is one of the techniques
More informationAbstract. 1 Introduction. 1.2 Concept. 1.1 Problematic. 1.3 Modelling
Piezo-composite transducer for mode and direction selectivity of Lamb waves Eng. Thomas Porchez, Cedrat Technologies, Meylan, France Dr. Nabil Bencheikh, Cedrat Technologies, Meylan, France Dr. Ronan Le
More informationA New Lamb-Wave Based NDT System for Detection and Identification of Defects in Composites
SINCE2013 Singapore International NDT Conference & Exhibition 2013, 19-20 July 2013 A New Lamb-Wave Based NDT System for Detection and Identification of Defects in Composites Wei LIN, Lay Siong GOH, B.
More informationKeywords: Ultrasonic Testing (UT), Air-coupled, Contact-free, Bond, Weld, Composites
Single-Sided Contact-Free Ultrasonic Testing A New Air-Coupled Inspection Technology for Weld and Bond Testing M. Kiel, R. Steinhausen, A. Bodi 1, and M. Lucas 1 Research Center for Ultrasonics - Forschungszentrum
More informationGuideline. Casting Selection Process. Table of Contents. Delivery Engineered Solutions
Casting Selection Process Guideline Table of Contents Introduction... 2 Factors In Choosing A Process... 2 Category Details & Requirements... 4 Sand casting... 4 Gravity die casting (also known as permanent
More informationInfluence of abrasive material on abrasive waterjet cutting process
Influence of abrasive material on abrasive waterjet cutting process I. A. Perianu, D. Ionescu, C. Ciucă National R&D Institute for Welding and Material Testing - ISIM Timişoara, Romania E-mail: aperianu@isim.ro
More informationAcoustic Resonance Analysis Using FEM and Laser Scanning For Defect Characterization in In-Process NDT
ECNDT 2006 - We.4.8.1 Acoustic Resonance Analysis Using FEM and Laser Scanning For Defect Characterization in In-Process NDT Ingolf HERTLIN, RTE Akustik + Prüftechnik, Pfinztal, Germany Abstract. This
More informationMaterials & Processes in Manufacturing
Materials & Processes in Manufacturing ME 151 Chapter 15 Multiple Use Mold Casting Processes 1 Introduction Expendable Molds - melting point materials and castings General shortcomings of the expendable-mold
More informationTaking MIM Tooling To the Next Level. Originally published in The American Mold Builder Magazine, February 2014
Taking MIM Tooling To the Next Level Originally published in The American Mold Builder Magazine, February 2014 1 Metal injection molding (MIM) merges two established technologies, plastic injection molding
More informationDesign of mode selective actuators for Lamb wave excitation in composite plates
CEAS Aeronaut J DOI 10.1007/s13272-012-0059-3 ORIGINAL PAPER Design of mode selective actuators for Lamb wave excitation in composite plates Daniel Schmidt Michael Sinapius Peter Wierach Received: 12 April
More informationULTRASONIC GUIDED WAVE ANNULAR ARRAY TRANSDUCERS FOR STRUCTURAL HEALTH MONITORING
ULTRASONIC GUIDED WAVE ANNULAR ARRAY TRANSDUCERS FOR STRUCTURAL HEALTH MONITORING H. Gao, M. J. Guers, J.L. Rose, G. (Xiaoliang) Zhao 2, and C. Kwan 2 Department of Engineering Science and Mechanics, The
More informationTrade of Toolmaking. Module 5: Press Tools, Jigs & Fixtures, Mouldmaking Unit 10: Mould Assembly Phase 2. Published by
Trade of Toolmaking Module 5: Press Tools, Jigs & Fixtures, Mouldmaking Unit 10: Mould Assembly Phase 2 Published by SOLAS 2014 Unit 9 1 Table of Contents Document Release History... 3 Unit Objective...
More informationDrivetrain for Vehicles 2018
Drivetrain for Vehicles 2018 presentation of an innovation RoBoC = Roll Bond Core ADVANTAGES OFFER RoBoC - Keep the stator housing battery housing power unit housing junction box and other similar applications
More informationCompression Molding. Solutions for 3D TSV and other advanced packages as well as cost savings for standard package applications
Compression Molding Solutions for 3D TSV and other advanced packages as well as cost savings for standard package applications 1. Company Introduction 2. Package Development Trend 3. Compression FFT Molding
More informationMagnetic Micro Testing System Microservo MMT Series C225-E014A
Magnetic Micro Testing System Microservo MMT Series C225-E014A Microservo MMT Series Magnetic Micro Testing System In recent years strength evaluation of micro materials and micro parts is increasing its
More informationHigh-temperature Ultrasonic Thickness Gauges for On-line Monitoring of Pipe Thinning for FAC Proof Test Facility
High-temperature Ultrasonic Thickness Gauges for On-line Monitoring of Pipe Thinning for FAC Proof Test Facility Yong-Moo Cheong 1, Se-Beom Oh 1, Kyung-Mo Kim 1, and Dong-Jin Kim 1 1 Nuclear Materials
More informationCHAPTER5 5 ZERO DEFECT MANUFACTURING IN THE PRODUCTION OF IMPELLER THROUGH THE APPLICATION OF CAD / CAE
33 CHAPTER5 5 ZERO DEFECT MANUFACTURING IN THE PRODUCTION OF IMPELLER THROUGH THE APPLICATION OF CAD / CAE 5.1 INTRODUCTION In the first place of research, CAD/CAE was applied to achieve ZERO DEFECT MANUFACTURING
More informationThe Study of TVS Trigger Geometry and Triggered Vacuum. Conditions
The Study of TVS Trigger Geometry and Triggered Vacuum Conditions Wung-Hoa Park, Moo-Sang Kim, Yoon-Kyoo Son, Byung-Joon Lee Pohang Accelerator Laboratory, Pohang University of Science and Technology,
More informationBMM3643 Manufacturing Processes Metal Casting Processes (Sand Casting)
BMM3643 Manufacturing Processes Metal Casting Processes (Sand Casting) by Dr Mas Ayu Bt Hassan Faculty of Mechanical Engineering masszee@ump.edu.my Chapter Synopsis This chapter will expose students to
More informationNovel Approach to Make Low Cost, High Density PZT Phased Array and Its Application in Structural Health Monitoring
Novel Approach to Make Low Cost, High Density PZT Phased Array and Its Application in Structural Health Monitoring B. XU, S. BUHLER, K. L1TIAU, S. ELROD, S. UCKUN, V. HAFIYCHUK and V. SMELYANSKIY ABSTRACT
More information1241. Efficiency improvement of energy harvester at higher frequencies
24. Efficiency improvement of energy harvester at higher frequencies Giedrius Janusas, Ieva Milasauskaite 2, Vytautas Ostasevicius 3, Rolanas Dauksevicius 4 Kaunas University of Technology, Kaunas, Lithuania
More informationTest Bench for Analyzing the Lost Foam Process
A R C H I V E S of F O U N D R Y E N G I N E E R I N G Published quarterly as the organ of the Foundry Commission of the Polish Academy of Sciences ISSN (1897-3310) Volume 13 Issue 1/2013 57 62 11/1 Test
More informationFLUTTER CONTROL OF WIND TUNNEL MODEL USING A SINGLE ELEMENT OF PIEZO-CERAMIC ACTUATOR
24 TH INTERNATIONAL CONGRESS OF THE AERONAUTICAL SCIENCES FLUTTER CONTROL OF WIND TUNNEL MODEL USING A SINGLE ELEMENT OF PIEZO-CERAMIC ACTUATOR Naoki Kawai Department of Mechanical Engineering, University
More informationApplication of Ultrasonic Guided Waves for Characterization of Defects in Pipeline of Nuclear Power Plants. Younho Cho
Application of Ultrasonic Guided Waves for Characterization of Defects in Pipeline of Nuclear Power Plants Younho Cho School of Mechanical Engineering, Pusan National University, Korea ABSTRACT State-of-art
More informationBend Sensor Technology Mechanical Application Design Guide Mechanical Application Design Guide
Bend Sensor Technology Mechanical Application Design Guide Mechanical Application Design Guide www.flexpoint.com Copyright 2015 Flexpoint Sensor Systems Page 1 of 10 2 Bend Sensor Technology Mechanical
More informationInjection moulding BUDAPEST UNIVERSITY OF TECHNOLOGY AND ECONOMICS FACULTY OF MECHANICAL ENGINEERING DEPARTMENT OF POLYMER ENGINEERING
B3 BUDAPEST UNIVERSITY OF TECHNOLOGY AND ECONOMICS FACULTY OF MECHANICAL ENGINEERING DEPARTMENT OF POLYMER ENGINEERING Injection moulding INJECTION MOULDING OF THERMOPLASTICS WWW.PT.BME.HU LOCATION OF
More informationFRAUNHOFER INSTITUTE FOR MACHINE TOOLS AND FORMING TECHNOLOGY IWU MACHINE TOOLS AND PRODUCTION SYSTEMS
FRAUNHOFER INSTITUTE FOR MACHINE TOOLS AND FORMING TECHNOLOGY IWU MACHINE TOOLS AND PRODUCTION SYSTEMS 1 2 3 FROM TECHNOLOGY TO MACHINE The Department of Machine Tools conducts research on developing production
More informationElectronic supplementary material
Electronic supplementary material Three-dimensionally Deformable, Highly Stretchable, Permeable, Durable and Washable Fabric Circuit Boards Qiao Li 1, and Xiao Ming Tao 1,2 * 1 Institute of Textiles and
More informationFRICTION-BASED INJECTION CLINCHING JOINING (F-ICJ) OF GLASS-FIBER- REINFORCED PA66 AND ALUMINUM HYBRID STRUCTURES
FRICTION-BASED INJECTION CLINCHING JOINING (F-ICJ) OF GLASS-FIBER- REINFORCED PA66 AND ALUMINUM HYBRID STRUCTURES M. Sônego 1, A.B. Abibe 2, J.F. dos Santos 2, L.B. Canto 1, S.T. Amancio-Filho 2,3,* Helmholtz-Zentrum
More informationAdvanced Machining Processes Professor Vijay K. Jain Department of Mechanical Engineering Indian Institute of Technology, Kanpur Lecture 06
Advanced Machining Processes Professor Vijay K. Jain Department of Mechanical Engineering Indian Institute of Technology, Kanpur Lecture 06 (Refer Slide Time: 00:17) Today we are going to discuss about
More informationASSESSMENT OF COMPOSITES REINFORCED WITH INNOVATIVE 3D WOVEN HOLLOW FABRICS
Munich, Germany, 26-30 th June 2016 1 ASSESSMENT OF COMPOSITES REINFORCED WITH INNOVATIVE 3D WOVEN HOLLOW FABRICS R. Geerinck 1, I. De Baere 1, G. De Clercq 2, J. Ivens 3 and J. Degrieck 1 1 Department
More informationLIQUID COMPOSITE MOULDING: INFLUENCE OF FLOW FRONT CONFLUENCE ANGLE ON LAMINATE POROSITY
LIQUID COMPOSITE MOULDING: INFLUENCE OF FLOW FRONT CONFLUENCE ANGLE ON LAMINATE POROSITY Gion A. Barandun, Paolo Ermanni Centre of Structure Technologies, ETH Zurich, Leonhardstrasse 27, 8092 Zurich, Switzerland:
More informationADVANECES IN CASTING. Presented by: M K PODDAR M.Tech (Student) Manufacturing engg. NIT Warangal
ADVANECES IN CASTING Presented by: M K PODDAR M.Tech (Student) Manufacturing engg. NIT Warangal http://ajourneywithtime.weebly.com CONTENTS Introduction Conventional casting process Advances & recent development
More informationCHAPTER 5: MOULDING PROCESS
CHAPTER OUTLINE CHAPTER 5: MOULDING PROCESS 5.1 INTRODUCTION 5.2 INJECTION MOULDING 5.3 COMPRESSION AND TRANSFER MOLDING 5.4 BLOW AND ROTATIONAL MOLDING 5.5 PRODUCT DESIGN CONSIDERATIONS 1 5.1 Introduction
More informationTime Reversal FEM Modelling in Thin Aluminium Plates for Defects Detection
ECNDT - Poster 39 Time Reversal FEM Modelling in Thin Aluminium Plates for Defects Detection Yago GÓMEZ-ULLATE, Instituto de Acústica CSIC, Madrid, Spain Francisco MONTERO DE ESPINOSA, Instituto de Acústica
More informationElectromagnetic driven selfpiercing riveting of metal & composite sheets
, BWI, Ghent, Belgium Electromagnetic driven selfpiercing riveting of metal & composite sheets Charlotte Beerwald Poynting GmbH, Dortmund, Germany Company Profile Since 13 years POYNTING company is equipment
More informationTitle: Reference-free Structural Health Monitoring for Detecting Delamination in Composite Plates
Title: Reference-free Structural Health Monitoring for Detecting Delamination in Composite Plates Authors (names are for example only): Chul Min Yeum Hoon Sohn Jeong Beom Ihn Hyung Jin Lim ABSTRACT This
More informationInjection moulding BUDAPEST UNIVERSITY OF TECHNOLOGY AND ECONOMICS FACULTY OF MECHANICAL ENGINEERING DEPARTMENT OF POLYMER ENGINEERING
B3 BUDAPEST UNIVERSITY OF TECHNOLOGY AND ECONOMICS FACULTY OF MECHANICAL ENGINEERING DEPARTMENT OF POLYMER ENGINEERING Injection moulding INJECTION MOULDING OF THERMOPLASTICS WWW.PT.BME.HU LOCATION OF
More informationPRESSURE DISTRIBUTION AND SURFACE QUALITY DURING FORMING OF THERMOPLASTIC COMPOSITES WITH A COLLECTION OF RUBBER PARTICLES AS MOULD HALF
PRESSURE DISTRIBUTION AND SURFACE QUALITY DURING FORMING OF THERMOPLASTIC COMPOSITES WITH A COLLECTION OF RUBBER PARTICLES AS MOULD HALF V.Antonelli 12, R. Carbone 3, S. Lindstedt 4, R. Marissen 5 1 Delft
More informationExamination of Microphonic Effects in SRF Cavities
Examination of Microphonic Effects in SRF Cavities Christina Leidel Department of Physics, Ohio Northern University, Ada, OH, 45810 (Dated: August 13, 2004) Superconducting RF cavities in Cornell s proposed
More informationChapter 30: Principles of Active Vibration Control: Piezoelectric Accelerometers
Chapter 30: Principles of Active Vibration Control: Piezoelectric Accelerometers Introduction: Active vibration control is defined as a technique in which the vibration of a structure is reduced or controlled
More informationthe pilot valve effect of
Actiive Feedback Control and Shunt Damping Example 3.2: A servomechanism incorporating a hydraulic relay with displacement feedback throughh a dashpot and spring assembly is shown below. [Control System
More informationCHAPTER 4: METAL CASTING PROCESS
CHAPTER 4: METAL CASTING PROCESS CHAPTER OUTLINE 4.1 INTRODUCTION 4.2 EXPANDABLE MOLD CASTING PROCESSES 4.2.1 Sand Casting 4.2.2 Shell Molding 4.2.3 Plaster Mold Casting 4.2.4 Ceramic Mold Casting 4.2.5
More informationHeat and Flow Analysis of High Pressure Die Casting using ProCAST
Heat and Flow Analysis of High Pressure Die Casting using ProCAST Nagaraj R 1, Asst. Prof. V.A.Girisha 2, Gayathri R 3 1 Mechanical Engineering, R V college of Engineering, Bangalore 560059 India, Email
More informationWearable PZT sensors for distributed soft contact sensing (Design and Signal Conditioning Manual)
Wearable PZT sensors for distributed soft contact sensing (Design and Signal Conditioning Manual) Harshal Sonar, Prof. Jamie Paik Reconfigurable Robotics Lab, EPFL Contact: harshal.sonar@epfl.ch February,
More informationSUMMARY. Coauthor J. Schaedlich-Stubenrauch, H. Linn
Peter R. Sahm Foundry Institute RWTH Aachen - Germany NUMERICAL SIMULATION OF THE ALPHA CASE AS A QUALITY CRITERION FOR THE INVESTMENT CASTING OF SMALL, THIN-WALLED TITANIUM PARTS SUMMARY As yet, no casting
More informationPiezoceramic Ultrasound Transducer Enabling Broadband Transmission for 3D Scene Analysis in Air
A2.2 Piezoceramic Ultrasound Transducer Enabling Broadband Transmission for 3D Scene Analysis in Air Kellner Johannes, Schweinzer Herbert Institute of Electrical Measurements and Circuit Design, Vienna
More informationThe Design of Gating System 2. Introduction to the gating system
MME 345 Lecture 14 The Design of Gating System 2. Introduction to the gating system Ref: [1] P. Beeley, Foundry Technology, Butterworth-Heinemann, 2001 [2] J. Campbell, Castings, Butterworth-Heinemann,
More information3D SOI elements for System-on-Chip applications
Advanced Materials Research Online: 2011-07-04 ISSN: 1662-8985, Vol. 276, pp 137-144 doi:10.4028/www.scientific.net/amr.276.137 2011 Trans Tech Publications, Switzerland 3D SOI elements for System-on-Chip
More informationApplications of Piezoelectric Actuator
MAMIYA Yoichi Abstract The piezoelectric actuator is a device that features high displacement accuracy, high response speed and high force generation. It has mainly been applied in support of industrial
More informationB. Flip-Chip Technology
B. Flip-Chip Technology B1. Level 1. Introduction to Flip-Chip techniques B1.1 Why flip-chip? In the development of packaging of electronics the aim is to lower cost, increase the packaging density, improve
More information3D PRINTING ON TEXTILES: TESTING OF ADHESION
ABSTRACT 3D PRINTING ON TEXTILES: TESTING OF ADHESION Malengier B 1, Hertleer C 1, Cardon L 2, Van Langenhove L 1 (12 pt, bold) 1 Centre for Textile Science and Engineering, Department MaTCh, Ghent University,
More informationExtending Acoustic Microscopy for Comprehensive Failure Analysis Applications
Extending Acoustic Microscopy for Comprehensive Failure Analysis Applications Sebastian Brand, Matthias Petzold Fraunhofer Institute for Mechanics of Materials Halle, Germany Peter Czurratis, Peter Hoffrogge
More informationAssembly Instructions for SCC1XX0 series
Technical Note 82 Assembly Instructions for SCC1XX0 series TABLE OF CONTENTS Table of Contents...1 1 Objective...2 2 VTI's 32-lead Dual In-line Package (DIL-32)...2 3 DIL-32 Package Outline and Dimensions...2
More informationAnalysis of the dynamic transmission behaviour of piezoelectric film sensors. Andre Zander 1 and Rolf Kumme 2
Analysis of the dynamic transmission behaviour of electric film sensors Andre Zander and olf Kumme Volkswagen AG, Wolfsburg, Germany Physikalisch-Technische undesanstalt, raunschweig, Germany Abstract
More informationTechnical Article. Inductive Versus Capacitive Position Sensors. C = A d
Technical Article (Ref: ZET13_v1) 9 th June 2011 Inductive Versus Capacitive Position Sensors Some engineers are confused between capacitive and inductive position sensors. Both use a non-contact technique
More informationMore Info at Open Access Database by S. Dutta and T. Schmidt
More Info at Open Access Database www.ndt.net/?id=17657 New concept for higher Robot position accuracy during thermography measurement to be implemented with the existing prototype automated thermography
More informationAn Experimental Evaluation of the Application of Smart Damping Materials for Reducing Structural Noise and Vibrations
An Experimental Evaluation of the Application of Smart Damping Materials for Reducing Structural Noise and Vibrations Kristina M. Jeric Thesis submitted to the Faculty of the Virginia Polytechnic Institute
More informationNew Materials and Method for Laser Trimmable NTC Thermistors
New Materials and Method for Laser Trimmable NTC Thermistors By David J. Nabatian Gene A. Perschnick Chuck Rosenwald KOARTAN EMC Technology Corporation Artek Corporation Microelectronic Interconnect Materials
More informationBend Sensor Technology Mechanical Application Design Guide
Bend Sensor Technology Mechanical Application Design Guide Copyright 2015 Flexpoint Sensor Systems Page 1 of 10 www.flexpoint.com Contents Bend Sensor Description. 3 How the Bend Sensor Potentiometer Works.
More informationAssembly Instructions for SCA6x0 and SCA10x0 series
Technical Note 71 Assembly Instructions for SCA6x0 and SCA10x0 series TABLE OF CONTENTS Table of Contents...1 1 Objective...2 2 VTI'S DIL-8 and DIL-12 packages...2 3 Package Outline and Dimensions...2
More informationWojciech BATKO, Michał KOZUPA
ARCHIVES OF ACOUSTICS 33, 4 (Supplement), 195 200 (2008) ACTIVE VIBRATION CONTROL OF RECTANGULAR PLATE WITH PIEZOCERAMIC ELEMENTS Wojciech BATKO, Michał KOZUPA AGH University of Science and Technology
More informationValidation of a Lamb Wave-Based Structural Health Monitoring System for Aircraft Applications
Validation of a Lamb Wave-Based Structural Health Monitoring System for Aircraft Applications Seth S. Kessler, Ph.D. Dong Jin Shim, Ph.D. SPIE 222 2005Third Street Cambridge, MA 02142 617.661.5616 http://www.metisdesign.com
More informationVoid Reduction in Reflow Soldering Processes by Sweep Stimulation of PCB Substrate
Void Reduction in Reflow Soldering Processes by Sweep Stimulation of PCB Substrate Viktoria Rawinski Ersa GmbH Wertheim, Germany Abstract Due to the ongoing trend towards miniaturization of power components,
More informationManufacturing Processes (continued)
Manufacturing (continued) Machining Some other processes Material compatibilities Process (shape) capabilities Manufacturing costs Correct pg 142, question 34i should read Fig 6.18 question 34j should
More informationMid term Review Questions P a g e 1 CASTING
Mid term Review Questions P a g e 1 Q1: Define the casting process? CASTING A1: Casting is the process of pouring molten metal into a mould containing a cavity, which represents the required product shape
More informationDIELECTRIC HEATING IN INSULATING MATERIALS AT HIGH DC AND AC VOLTAGES SUPERIMPOSED BY HIGH FREQUENCY HIGH VOLTAGES
DIELECTRIC HEATING IN INSULATING MATERIALS AT HIGH DC AND AC VOLTAGES SUPERIMPOSED BY HIGH FREQUENCY HIGH VOLTAGES Matthias Birle * and Carsten Leu Ilmenau University of technology, Centre for electrical
More informationcontrolled energy Å V^
controlled energy Å V^ Interview with Ralf Schwarzkopf, CEO of Hotset GmbH What are the reasons for these changes? And this has changed hotset s self-perception? hotset is presenting itself with a new
More informationYear 9 Mathematics Topic 5, Measurement and Geometry Investigation The Feeding of Castings
Name: Class: Due date: / / Mark: /48 % Year 9 Mathematics 2014. Topic 5, Measurement and Geometry Investigation The Feeding of Castings You are to investigate the calculation of casting modulus and feeder
More informationMultivacuum and Dynamic Profiling
Multivacuum and Dynamic Profiling the new reference for efficient voidfree SMD vacuum soldering process Worldwide leading in vapor phase soldering technology Formation of Voids What are Voids? Crystalline
More information1272. Phase-controlled vibrational laser percussion drilling
1272. Phase-controlled vibrational laser percussion drilling Chao-Ching Ho 1, Chih-Mu Chiu 2, Yuan-Jen Chang 3, Jin-Chen Hsu 4, Chia-Lung Kuo 5 National Yunlin University of Science and Technology, Douliou,
More informationAdvanced Injection moulding, monitoring and control
Advanced Injection moulding, monitoring and control Cavity pressure monitoring, control and component quality prediction 1 Duncan Webster Why Cavity Pressure? Reduced OQ validation time due to fewer required
More informationTwo-component Injection Molding of Molded Interconnect Devices
Two-component Injection Molding of Molded Interconnect Devices Jyun-yi Chen, Wen-Bin Young *1 Department of Aeronautics and Astronautics, National Cheng Kung University Tainan, 70101, Taiwan, ROC *1 youngwb@mail.ncku.edu.tw
More informationPerformance of Diamond Segments in Different Machining Processes
Materials Science Forum Online: 24-12-15 ISSN: 1662-9752, Vols. 471-472, pp 77-81 doi:1.428/www.scientific.net/msf.471-472.77 Materials Science Forum Vols. *** (24) pp.77-81 24 Trans Tech Publications,
More informationRapid Prototyping without re-working
Rapid Prototyping without re-working The Layer Milling Center LMC produced by F. Zimmermann GmbH in Denkendorf combines the known RP-procedures with HSC milling. The CAM software WorkNC-LMP especially
More informationSelf powered microsystem with electromechanical generator
Self powered microsystem with electromechanical generator JANÍČEK VLADIMÍR, HUSÁK MIROSLAV Department of Microelectronics FEE CTU Prague Technická 2, 16627 Prague 6 CZECH REPUBLIC, http://micro.feld.cvut.cz
More informationVirtual Manufacturing Laboratory:
Virtual Manufacturing Laboratory: Desktop PC (Core i5)-3 nos. Software: 1. IGRIP Interactive Graphics Robot Instruction Programme. (Stratasys, Model-Objet. 30) 2. QUEST- Queuing vent Simulation (Deneb
More informationSurface Mount Header Assembly Employs Capillary Action
New Product Technology Surface Mount Header Assembly Employs Capillary Action Zierick s unique header assembly features capillary action to improve solder joint strength. As a result, pin retention force
More informationCharacterization of Silicon-based Ultrasonic Nozzles
Tamkang Journal of Science and Engineering, Vol. 7, No. 2, pp. 123 127 (24) 123 Characterization of licon-based Ultrasonic Nozzles Y. L. Song 1,2 *, S. C. Tsai 1,3, Y. F. Chou 4, W. J. Chen 1, T. K. Tseng
More informationAvailable online at ScienceDirect. Physics Procedia 56 (2014 ) Stoczek u., Budapest, H-1111, Hungary
Available online at www.sciencedirect.com ScienceDirect Physics Procedia 56 (2014 ) 818 823 8 th International Conference on Photonic Technologies LANE 2014 Comparing adhesive bonding and LAMP joining
More information