(( Manufacturing )) Fig. (1): Some casting with large or complicated shape manufactured by sand casting.
|
|
- Abigail Benson
- 5 years ago
- Views:
Transcription
1 (( Manufacturing )) Expendable Mold Casting Processes: Types of expendable mold casting are: 1 ) Sand casting. 2 ) Shell molding. 3 ) Vacuum molding. 4 ) Investment casting. 5 ) Expanded polystyrene process. 6 ) Plaster & Ceramic mold casting. 1. Overview of Sand Casting: Most widely used casting process, it can be considered as a significant majority of total tonnage cast. Nearly all alloys can be sand casted, including metals with high melting temperatures, such as steel, nickel, and titanium. Castings range in size from small to very large and for complicated shapes [see fig. (1) below]. Production quantities from one to millions. Fig. (1): Some casting with large or complicated shape manufactured by sand casting. Sand Casting Production Sequence: The steps include not only the casting operation but also pattern-making and mold-making. The sand casting sequences can be described by the below flow chart, in which the steps of sand casting take place [see fig. (2) below]. The chart shows that pattern shape making and sand preparation are first applied, then the mold is made by pressing sand around pattern with fingers. When the mold complete, the following steps is done: 1. Pour the molten metal into sand mold. 2. Allow time for metal to cool and solidify 3. Break up the mold to remove casting. 4. Clean and inspect casting (Separate gating and riser system). 5. Heat treatment of casting is sometimes required to improve metallurgical properties. 1
2 Desirable Mold Properties: Strength - the mold s ability to maintain its shape and resist erosion caused by the flow of molten metal; it depends on grain shape, adhesive qualities of the binder. Permeability - capacity of the mold to allow hot air and gases from the casting operation to pass through the voids in the sand. Thermal stability - ability of the sand at the surface of the mold cavity to resist cracking and buckling upon contact with the molten metal. Collapsibility - ability of the mold to allow the casting to shrink without cracking the casting; it also refers to the ability to remove the sand from the casting during cleaning. Reusability can the sand from broken mold be reused to make other molds? Binders Used with Foundry Sands: Sand is held together by a mixture of water and bonding clay: Typical mix: 90% sand, 3% water, and 7% clay Other bonding agents also used in sand molds: Organic resins (eg, phenolic resins) [acidic compound C 6 H 5 OH ]. Inorganic binders (eg, sodium silicate and phosphate) Additives are sometimes combined with the mixture to increase strength and / or permeability. 2. Shell Molding: Casting process in which the mold is a thin shell of sand (typically 9 mm thickness) held together by thermosetting resin binder. The process is described and illustrated in the following figure (3): Fig. (3): Steps in shell-molding. Steps in Shell molding: (1) A match-plate or cope-and-drag metal pattern is heated and placed over a box containing sand mixed with thermosetting resin. (2) Box is inverted so that sand and resin fall onto the hot pattern, causing a layer of the mixture to partially cure on the surface to form a hard shell. (3) Box is repositioned so that loose uncured particles drop away. (4) Sand shell is heated in oven for several minutes to complete curing. (5) Shell mold is stripped from the pattern. 2
3 (6) Two halves of the shell mold is assembled, supported by sand or metal shot in a box, and pouring is accomplished. (7) The finished casting with sprue removed. Advantages of shell molding: Smoother cavity surface permits easier flow of molten metal and better surface finish Good dimensional accuracy - machining often not required Mold collapsibility minimizes cracks in casting Can be mechanized for mass production More expensive metal pattern Difficult to justify for small quantities 3. Investment Casting (Lost Wax Process): A pattern made of wax is coated with a refractory material to make mold, after which wax is melted away prior to pouring molten metal [see fig. (4) below]. "Investment" comes from a definition of "invest" - "to cover completely," which refers to coating of refractory material around wax pattern. It is a precision casting process - capable of producing castings of high accuracy and intricate detail [see fig. (4) photo no. (8)]. Fig. (4): Steps in investment-molding. Steps in Investment molding: (1) Wax patterns are produced. (2) Several patterns are attached to a sprue to form a pattern tree. (3) The pattern tree is coated with a thin layer of refractory material. (4) The full mold is formed by covering the coated tree with sufficient refractory material to make it rigid. (5) The mold is held in an inverted position and heated to melt the wax and permit it to drip out of the cavity. (6) The mold is preheated to a high temperature, the molten metal is poured, and it solidifies. (7) The mold is broken away from the finished casting and the parts are separated from the sprue. (8) A one-piece compressor stator with 108 separate airfoils made by investment. 3
4 Advantages of investment casting: Parts of great complexity and intricacy can be cast Close dimensional control and good surface finish Wax can usually be recovered for reuse Additional machining is not normally required - this is a net shape process Disadvantages Many processing steps are required Relatively expensive process 4. Vacuum Mold ing: Uses sand mold held together by vacuum pressure rather than by a chemical binder [see fig. (5) below]. The term "vacuum" refers to mold making rather than casting operation itself. It is developed in Japan around Fig. (5): Steps in Vacuum - molding. Steps in Vacuum molding: (1) A thin sheet of preheated plastic is drawn over a match-plate or copedrag pattern by vacuum; the pattern has small vent holes to facilitate vacuum forming. (2) A specially designed flask is placed over the pattern plate and filled with sand, and a sprue with pouring cup is formed in the sand. (3) Another thin plastic sheet is placed over the flask, and a vacuum is drawn that causes the sand grain to be held together, forming a rigid mold. (4) The vacuum on the mold pattern is released to permit the pattern to be stripped from the mold. (5) The drag is made in the same way (without the sprue and pouring cup). This mold is assembled with its matching half to form the cope and drag, and with vacuum maintained on both halves, the molten metal is poured. When the metal has solidified the vacuum is turned off. Advantages of vacuum molding: Easy recovery of the sand, since no binders Sand does not require mechanical reconditioning done when binders are used Since no water is mixed with sand, moisture-related defects are absent Slow process Not readily adaptable to mechanization. 4
5 5. Expanded Polystyrene Process: Fig. (6): Steps in Expanded Polystyrene process. Uses a mold of sand packed around a polystyrene foam pattern which vaporizes when molten metal is poured into mold [see fig. (6) above]. Other names: lost-foam process, lost pattern process, evaporative-foam process, and full-mold process. Polystyrene foam pattern includes sprue, risers, gating system, and internal cores (if needed). Mold does not have to be opened into cope and drag sections. Steps in Expanded Polystyrene process : (1) Pattern of polystyrene is coated with refractory compound. (2) Foam pattern is placed in mold box, and sand is compacted around the pattern. (3) Molten metal is poured into the portion of the pattern that forms the pouring cup and sprue. As the metal enters the mold, the polystyrene foam is vaporized ahead of the advancing liquid, thus the resulting mold cavity is filled. Advantages of expanded polystyrene process: Pattern need not be removed from the mold. Simplifies and speeds mold-making, because two mold halves are not required as in a conventional green-sand mold. Mass production of castings for automobile engines. A new pattern is needed for every casting Economic justification of the process is highly dependent on cost of producing patterns 6. Plaster Mold Casting: Similar to sand casting except mold is made of plaster (gypsum - CaSO 4-2H 2 O). In mold-making, plaster and water mixture is poured over plastic or metal pattern and allowed to set [see fig. (7) below]. Wood patterns not generally used due to extended contact with water Plaster mixture readily flows around pattern, capturing its fine details and good surface finish. Advantages of plaster mold casting: Good accuracy and surface finish Capability to make thin cross-sections 5
6 Mold must be baked to remove moisture, which can cause problems in casting. Mold strength is lost if over-baked. Plaster molds cannot stand high temperatures, so limited to lower melting point alloys. 7. Ceramic Mold Casting: Fig. (7): Steps in Plaster mold casting process. Fig. (8): Steps in Ceramic Casting process. Similar to plaster mold casting except that mold is made of refractory ceramic material that can withstand higher temperatures than plaster [see fig. (8) above]. Can be used to cast steels, cast irons, and other high-temperature alloys. Applications similar to those of plaster mold casting except for the metals cast Advantages (good accuracy and finish) also similar. Steps in Ceramic casting process: 1. Preparing the pattern and setting it in flask. 2. A mixture of fine grain Zircon (ZrSiO 4 ), aluminum oxide, bonding agents and water creates a ceramic slurry. The slurry is poured over the pattern and let set. 3. The pattern is removed and the mold is left to dry and then the mold is fired. The firing will burn off any unwanted material and make the mold harder & rigid 4. Pouring the molten metal into the ceramic mold and let the metal to cool and solidified. 5. The finished casting. 6
Two 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 informationMetal Casting Processes CHAPTER 11 PART I
Metal Casting Processes CHAPTER 11 PART I Topics Introduction Sand casting Shell-Mold Casting Expendable Pattern Casting Plaster-Mold Casting Introduction Metal-Casting Processes First casting were made
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 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 informationChapter 1 Sand Casting Processes
Chapter 1 Sand Casting Processes Sand casting is a mold based net shape manufacturing process in which metal parts are molded by pouring molten metal into a cavity. The mold cavity is created by withdrawing
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 informationSolidification Processes
CASTING PROCESSES I Lecture Notes by Zulkepli Muhamad Solidification Processes Starting work material is either a liquid or is in a highly plastic condition, and a part is created through solidification
More informationMETAL CASTING PROCESSES
METAL CASTING PROCESSES Sand Casting Other Expendable Mold Casting Processes Permanent Mold Casting Processes Foundry Practice Casting Quality Metals for Casting Product Design Considerations Two Categories
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 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 informationManufacturing Process II. Casting-3
Manufacturing Process II Casting-3 Casting Processes Metal casting processes divide into two categories, based on mold type: (1) expendable mold and (2) permanent mold. In expendable mold casting operations,
More information1. There is a variety of casting processes. Many casting process characteristics are similar
CHAPTER 14 Expendable-Mold Casting Processes Review Questions 1. There is a variety of casting processes. Many casting process characteristics are similar but each has distinct characteristics that determine
More informationExpendable-Mold Casting Process
Expendable-Mold Casting Process Chapter 12 12.1 Introduction Factors to consider for castings Desired dimensional accuracy Surface quality Number of castings Type of pattern and core box needed Cost of
More informationTypes of moulding sand
casting Types of moulding sand 1. Green sand: Green sand which is also known as natural sand is the mostly used sand in moulding. It is basically the mixture of sand, clay and water. The clay contain
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 informationManufacturing Processes - I Dr. D. B. Karunakar Mechanical and Industrial Engineering Department Indian Institute of Technology, Roorkee
Manufacturing Processes - I Dr. D. B. Karunakar Mechanical and Industrial Engineering Department Indian Institute of Technology, Roorkee Module - 2 Lecture - 7 Metal Casting Good morning. We have been
More informationSHELL MOULDING & INVESTMENT CASTING
SHELL MOULDING & INVESTMENT CASTING SHELL MOULDING Thisistheprocessinwhichthesandmixedwiththermosettingresinisallowedtocomein contact with the heated metallic pattern plate. This is done so that a thin
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 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 informationA critical review on sand casting technology
A critical review on sand casting technology DR. T.R. VIJAYARAM Prof., SMBS VIT University S and casting technology also known as sand molded casting process. It is a metal casting process characterized
More informationSpecial Casting. By S K Mondal
Special Casting By S K Mondal Shell Moulding The sand is mixed with a thermosetting resin is allowed to come in contact with a heated metal pattern (200 0 C). A skin (shell) of about 3.5 mm of sand and
More informationCasting. Pattern Making and Molding
Casting Pattern Making and Molding Introduction Virtually nothing moves, turns, rolls, or flies without the benefit of cast metal products. The metal casting industry plays a key role in all the major
More informationCasting Process Lec byprof. A.Chandrashekhar
Casting Process Lec 18-20 byprof. A.Chandrashekhar Introduction casting may be defined as a metal object obtained by pouring molten metal in to a mould and allowing it to solidify. Casting process is
More informationMANUFACTURING PROCESSES
1 MANUFACTURING PROCESSES - AMEM 201 Lecture 10: Casting Technology DR. SOTIRIS L. OMIROU CASTING - Basics - A material in a liquid or semisolid form is poured or forced to flow into a die cavity and allowed
More information(Refer Slide Time: 00:35)
Fundamentals of Materials Processing (Part 1) Professor Shashank Shekhar Department of Materials Science and Engineering Indian Institute of Technology, Kanpur Lecture Number 02 Solidification (Casting)
More informationCastings. 65tons, 7m high, 43cm dia, 1600years old
Castings 65tons, 7m high, 43cm dia, 1600years old At 500/550 pound in weight. The biggest Gravity Die Casting in The World at the Time http://www.rainwater.demon.co.uk/bertha.htm CASTING AND RELATED PROCESSES
More informationModule-2: ADVANCED METAL CASTING PROCESSES:
Module-2: ADVANCED METAL CASTING PROCESSES: Lecture No-3 Hybrid Evaporative Pattern Casting Process One of the limitations of EPC process is that the sand, which is free flowing, falls on the unfilled
More informationPrinciples of Major Manufacturing Processes. Prepared by: Behzad Heidarshenas Ph.D in Manufacturing Processes
Principles of Major Manufacturing Processes Prepared by: Behzad Heidarshenas Ph.D in Manufacturing Processes 1 Overview of Casting Technology Casting is usually performed in a foundry Foundry = factory
More informationCopyright 1999 Society of Manufacturing Engineers FUNDAMENTAL MANUFACTURING PROCESSES Casting
Copyright 1999 Society of Manufacturing Engineers --- 1 --- FUNDAMENTAL MANUFACTURING PROCESSES Casting SCENE 1. CG: FBI warning white text centered on black to blue gradient SCENE 2. CG: disclaimer white
More informationThe properties that are generally required in molding materials are:
Molding Sand Molding sands may be of two types namely natural or synthetic. Natural molding sands contain sufficient binder. Whereas synthetic molding sands are prepared artificially using basic sand molding
More informationManufacturing Processes - I Dr. D. B. Karunakar Department of Mechanical and Industrial Engineering Indian Institute of Technology, Roorkee
Manufacturing Processes - I Dr. D. B. Karunakar Department of Mechanical and Industrial Engineering Indian Institute of Technology, Roorkee Lecture - 4 Module 2 Metal Casting Good morning, Metal casting,
More informationCASTING. Dept. of Mech & Mfg. Engg. 1
CASTING 1 CASTING It is the process of producing metallic parts by pouring a molten metal in to the mould cavity and allowing the metal to solidify. 2 Casting Process Pattern making Mould making Metal
More informationCasting Process Part 1
Mech Zone Casting Process Part 1 (SSC JE Mechanical/ GATE/ONGC/SAIL BHEL/HPCL/IOCL) Refractory mold pour liquid metal solidify, remove finish Casting - Process of Producing Metallic Parts by Pouring Molten
More information1.0 PRECISION CASTING PROCESSES
1.0 PRECISION CASTING PROCESSES An Introduction to precision casting processes The casting process is without equal as the manufacturing cable of producing fully shaped components of any size in any
More informationME0203- Manufacturing Technology
ME0203- Manufacturing Technology Casting and Welding Metal Casting A large sand casting weighing 680 kg for an air compressor frame Basic Features n Pattern and Mould A pattern is made of wood or metal,
More informationSchematic set-up of sand molding / casting process
UNIT I Casting Processes The casting process involves pouring of liquid metal in to a mold cavity and allowing it to solidify to obtain the final casting. The flow of molten metal into the mold cavity
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 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 informationINTRODUCTION. HareeshaN G Lecturer Department of aeronautical engg. Classification of manufacturing process
INTRODUCTION HareeshaN G Lecturer Department of aeronautical engg Classification of manufacturing process 2 Blore 1 Classification of manufacturing process 3 Types of production systems Mass production
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 informationA CONCEPTUAL DESIGN OF PATTERN TO REPLACE INVESTMENT CASTING
A CONCEPTUAL DESIGN OF PATTERN TO REPLACE INVESTMENT CASTING THESIS SUBMITTED IN THE FULFILLMENT FOR THE DEGREE OF Bachelor of Technolgy In Mechanical Engineering By LOKANATH BEHERA 109ME0360 Department
More informationUNIT 2 MOULDING MATERIALS
UNIT 2 MOULDING MATERIALS Moulding Materials Structure 2.1 Introduction Objectives 2.2 Moulding Sands 2.2.1 Properties of a Good Moulding Sand 2.2.2 Principal Ingredients of Moulding Sands 2.2.3 Other
More informationMetal Casting Dr. D. B. Karunakar Department of Mechanical and Industrial Engineering Indian Institute of Technology, Roorkee
Metal Casting Dr. D. B. Karunakar Department of Mechanical and Industrial Engineering Indian Institute of Technology, Roorkee Module - 02 Sand Casting Process Lecture - 02 Moulding Sands And Design-I Good
More informationManufacturing Processes - I Dr. D. B. Karunakar Department of Mechanical and Industrial Engineering Indian Institute of Technology, Roorkee
Manufacturing Processes - I Dr. D. B. Karunakar Department of Mechanical and Industrial Engineering Indian Institute of Technology, Roorkee Lecture - 5 Metal Casting Good morning. In the earlier episodes,
More informationCreating Quality Casting
MME 6203 Lecture 01 Creating Quality Casting AKMB Rashid Professor, Department of MME BUET, Dhaka Topics to discuss today. 1. Defects in casting 2. How to create quality casting 3. Introducing MME 6203
More informationJapan Foundry Society, Inc. Research and Application of EPS Investment Casting Technique. Lu Dingquan Donfeng Investment Casting Co., Ltd.
Japan Foundry Society, Inc. Research and Application of EPS Investment Casting Technique Lu Dingquan Donfeng Investment Casting Co., Ltd. 13 th WORLD CONFERENCE ON INVESTMENT CASTING Paper: T11 Copyright
More informationCasting Processes. ver. 2
Casting Processes ver. 2 1 Types of Parts Made Engine blocks Pipes Jewelry Fire hydrants 2 Complex, 3-D shapes Near net shape Low scrap Relatively quick process Intricate shapes Large hollow shapes No
More informationAdvantages of the Casting Process
Advantages of the Casting Process The casting process has nearly unlimited flexibility compared to other manufacturing processes and is excellent for optimizing designs based on performance and weight
More informationHarmony Castings, LLC TPi Arcade, INC
Harmony Castings, LLC TPi Arcade, INC Using the V-PROCESS V for Production and Prototype Casting Requirements What is the V-PROCESS V and how it works V-PROCESS produces castings with a smooth surface,
More informationME 4563 ME 4563 ME 4563
Introduction to Manufacturing Processes College of Engineering Arkansas State University 1 Casting Processes for Liquid Metals There are two classes of casting processes: Ingot casting - simple shapes
More informationSAND CASTING LMU., MEC 329,MECH., DEPT. ADEDIRAN A.A
SAND CASTING Sand Casting is simply melting the metal and pouring it into a preformed cavity, called mold, allowing (the metal to solidify and then breaking up the mold to remove casting. In sand casting
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 informationMultiple-Use-Mold Casting Processes
Multiple-Use-Mold Casting Processes Chapter 13 13.1 Introduction In expendable mold casting, a separate mold is produced for each casting Low production rate for expendable mold casting If multiple-use
More informationLost Wax Casting: Investment/Centrifugal Casting Instructor Notes
Lost Wax Casting: Investment/Centrifugal Casting Instructor Notes Reliability This is a complex procedure, and might have to be repeated more than once. Results are often a boost in students pride and
More informationfoamcast CASTING PROCESS jayshree machines & tools
foamcast CASTING PROCESS foamcast Process Steps 1. Mold foam pattern sections. 2. Age pattern to allow dimensional shrinkage. 3. Assemble pattern if it is a multiple piece pattern. 4. Build cluster (multiple
More informationABSTRACT I. INTRODUCTION II. METHODS AND MATERIAL
2017 IJSRSET Volume 3 Issue 2 Print ISSN: 2395-1990 Online ISSN : 2394-4099 Themed Section: Engineering and Technology A Critical Review on Casting Types and Defects T. Venkat Sai 1, T. Vinod 2, Gunda
More informationAATC PRESENTATION INVESTMENT CASTING PROCESS (2 OF 3 PRESENTATIONS REVISION 2014_0429) AATC, Inc W. Catalina Dr. Phoenix, AZ USA
AATC PRESENTATION INVESTMENT CASTING PROCESS (2 OF 3 PRESENTATIONS REVISION 2014_0429) 1 Wax Injection & Pattern Assembly Wax Injection: A wax pattern is made by injecting liquid wax into an aluminum mold.
More informationIntroduction to the patient and know the chief complain (clinical step). Diagnosis and filling a case sheet with preparation and motivation the
Introduction to the patient and know the chief complain (clinical step). Diagnosis and filling a case sheet with preparation and motivation the patient to the treatment (clinical step). Treatment planning
More informationManufacturing Processes - I Dr. D. B. Karunakar Mechanical and Industrial Engineering Department Indian Institute of Technology, Roorkee
Manufacturing Processes - I Dr. D. B. Karunakar Mechanical and Industrial Engineering Department Indian Institute of Technology, Roorkee Module - 2 Lecture - 1 Metal Casting Metal casting, metal casting
More informationCOURSE: METAL CASTING. Module No. 6: PATTERNS
COURSE: METAL CASTING Module No. 6: PATTERNS Lecture No-1 Patterns: Materials and Functions Pattern (Click on Fig. 6.1.1 to view a typical pattern) The pattern is not the exact replica of the object to
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 information3D Systems Guide to Prototyping Die Cast Parts
3D Systems Guide to Prototyping Die Cast Parts Tom Mueller 3D Systems May 2013 Table of Contents Introduction... 3 Why should I prototype?... 4 What are the options for Prototyping?... 5 Which should I
More informationIntroduction 2. Casting as a metal forming process
MME 345 Lecture 02 Introduction 2. Casting as a metal forming process Ref: P. Beeley, Foundry Technology, Butterworth-Heinemann, 2001 Ch 01: Introduction Topics to discuss today. 1. Metal forming processes
More informationMetal Casting Dr. D. B. Karunakar Department of Mechanical and Industrial Engineering Indian Institute of Technology, Roorkee
Metal Casting Dr. D. B. Karunakar Department of Mechanical and Industrial Engineering Indian Institute of Technology, Roorkee Module - 01 Introduction And Overview Lecture 04 Overview Of Different Casting
More informationOET-010 Manufacturing Processes TAG Rubric COURSE OUTLINE
OET-010 Manufacturing Processes TAG Rubric COURSE OUTLINE MET Objective SURVEY OF MANUFACTURING PROCESSES INSTRUCTOR: STEVE SYKES Mon/Wed 2:30PM 5:15PM OFFICE: 778-7946 (Room 434) TEXT: MODERN MANUFACTURING
More informationSteel Plate in Oil Rig Blowout Preventer Valves
Design Problem Steel Plate in Oil Rig Blowout Preventer Valves Introduction Design for Performance Alloy selection Radii and stress reduction Design for Production Mould method Orientation and cores Controlling
More informationWhat makes Investment Casting one of the BEST way to cast metal?
What makes Investment Casting one of the BEST way to cast metal? In it s simplest form, investment casting can be thought of as the melting and flowing of any of todays common engineering metals and alloys
More informationGuide to Prototyping. Die Cast Parts. Applications and Technologies of Die Cast Prototyping
Guide to Prototyping Die Cast Parts Applications and Technologies of Die Cast Prototyping Table of Contents 1 Introduction 3 2 Why Should I Prototype? 4 3 What are the Options for Prototyping 5 Which Should
More informationMaster model duplication, producing a wax pattern for casting, replacement of wax pattern with metal, grinding and polishing of metal framework.
ANNOTATION TO THE LESSON 15 Master model duplication, producing a wax pattern for casting, replacement of wax pattern with metal, grinding and polishing of metal framework. Preparation of master model
More informationOVERVIEW OF FOUNDRY PROCESSES
OVERVIEW OF FOUNDRY PROCESSES Contents 1. Overview of Casting Processes... 3 2. Casting Processes... 6 2.1 Sand Casting... 6 2.1.1 Pattern Making... 7 2.1.2 Mould Making... 7 2.1.3 Melting and Pouring...
More informationEFFECT OF PROCESS VARIABLES ON THE QUALITY OF INVESTMENT CASTINGS PRODUCED BY USING EXPANDABLE POLYSTYRENE PATTERN
EFFECT OF PROCESS VARIABLES ON THE QUALITY OF INVESTMENT CASTINGS PRODUCED BY USING EXPANDABLE POLYSTYRENE PATTERN A DISSERTATION Submitted in partial fulfillment of the requirements for the award of the
More informationPattern Design. Broken Edges. Patterns are generally made from wood however they can be made from metal, plastic or any number of other materials.
Sand is a process that has been around for over 5000 years. The process itself is fairly simple. A pattern is pressed into a sand mould to leave an impression. The pattern is then removed and the impression
More informationAATC PRESENTATION - COMPANY (1 OF 3 PRESENTATIONS REVISION 2014_0429) AATC, Inc W. Catalina Dr. Phoenix, AZ USA
AATC PRESENTATION - COMPANY (1 OF 3 PRESENTATIONS REVISION 2014_0429) 1 Investment Casting s About AATC Quality Commitment Management We want your business Investment castings reduce or eliminate alternate
More informationPES INSTITUTE OF TECHNOLOGY - BANGALORE SOUTH CAMPUS (Hosur Road, 1KM before Electronic City, Bangalore ) Department of Mechanical Engg.
Third Semester B.E. 1 st IA Test, 2016 USN 1 P E PES INSTITUTE OF TECHNOLOGY - BANGALE SOUTH CAMPUS (Hosur Road, 1KM before Electronic City, Bangalore-560 100) Department of Mechanical Engineering Subject
More informationStephanie O Connor ATI Wah Chang, an Allegheny Technologies Company Albany, OR
Stephanie O Connor ATI Wah Chang, an Allegheny Technologies Company Albany, OR INTRODUCTION Design engineers are faced with multiple considerations when it comes to component design and fabrication for
More informationCasting & Working of Metals Lab Manuals LIST OF EXPERIMENTS
LIST OF EXPERIMENTS 1. 2. PRACTICE FOR PREPRATION MOULDING SAND MIXTURES (1 session) PRACTICE FOR MAKING SAND MOLDS USING DIFFERENT PATTERNS (2 sessions) 3. PRACTICE FOR MELTING ALUMINUM AND ITS ALLOYS
More informationChoosing metalcasting is just the start. This article will help you navigate the casting process palette and find the optimal one for your part.
Make a Selection Choosing metalcasting is just the start. This article will help you navigate the casting process palette and find the optimal one for your part. Design engineers must choose among several
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 informationMF9254 ADVANCES IN CASTING AND WELDING PROCESSES UNIT III RECENT TRENDS IN CASTING AND FOUNDRY LAYOUT
MF9254 ADVANCES IN CASTING AND WELDING PROCESSES UNIT III RECENT TRENDS IN CASTING AND FOUNDRY LAYOUT Syllabus Shell moulding, precision investment casting, CO2 moulding, centrifugal casting, Die casting,
More informationCompany Profile. Company Profile PRECISION INVESTMENT CASTING MANUFACTURER
INTRODUCTION Adroit Techno cast Pvt. Ltd. (ATCPL) is a versatile manufacturer, capable of producing highly customized products in the field of Investment Casting. Catering to quality-conscious niches,
More informationSteps to deliver dental prosthesis
Prosthodontic المرحله الثالثه 2 nd lecture Steps to deliver dental prosthesis The steps to constrict dental prosthesis should divided clinical & lab steps. 1- Encounter the patient to know his/her chief
More informationPhoto: Leslie Bruning - Bruning Sculpture Studio. Castalite
Photo: Leslie Bruning - Bruning Sculpture Studio Castalite Castalite Castalite is a UV-curable ceramic shell resin suitable for 3D printers that utilize SLA, DLP or CLIP technologies with UV wavelengths
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 informationBronze; Lost Wax Method (cire perdue)
2015 Jan Willem van der Wal Bowen Island BC Bronze; Lost Wax Method (cire perdue) The lost wax (cire perdue) method: A sculpture made out of wax cast in a mold from grog and plaster which can be burnt
More informationInvestment Casting with FDM Patterns
TECHNICAL APPLICATION GUIDE Investment Casting with FDM Patterns Investment casting produces ferrous and non-ferrous metal parts with excellent surface finish and dimensional accuracy. This manufacturing
More informationAll 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 Casting Dr. D. B. Karunakar Department of Mechanical and Industrial Engineering Indian Institute of Technology, Roorkee
Metal Casting Dr. D. B. Karunakar Department of Mechanical and Industrial Engineering Indian Institute of Technology, Roorkee Module - 02 Sand Casting Process Lecture 03 Moulding Sands and Design-II Welcome
More informationInvestment Casting with PolyCast
Application Note Investment Casting with PolyCast 1. Overview PolyCast is an entirely new 3D printing filament designed specifically for investment casting applications. This document provides the basic
More informationCASTING 13.1 INTRODUNCTION 13.2 SIGNIFICANCE OF FLUDITY CHAPTER
13 CHAPTER CASTING 13.1 INTRODUNCTION Casting process is one of the earliest metal shaping techniques known to human being. It means pouring molten metal into a refractory mold cavity and allows it to
More informationAttention is drawn to the following places, which may be of interest for search:
CPC - B22D - 2017.08 B22D CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES (shaping of plastics or substances in a plastic state B29C; metallurgical processing, selection
More information3D Printing Enabled Rapid Manufacture of Metal Parts at Low Cost Himanshu Khandelwal 1 and B. Ravi 2
3D Printing Enabled Rapid Manufacture of Metal Parts at Low Cost Himanshu Khandelwal 1 and B. Ravi 2 1 Ph.D. Research Scholar 2 Introduction Metal parts can be manufactured by mainly three routes: subtractive
More informationTOOLKIT PART 4 MANUFACTURING PROCESSES
Understanding which manufacturing process has been used to make an object can help you identify its material as different materials are manufactured with different process. Different manufacturing processes
More informationTroubleshooting Conventional Burnout Phosphate Bonded Investments
Troubleshooting Conventional Burnout Phosphate Bonded Investments Phosphate investments are affected by many variables, but the following generalizations can be made: Thorough mixing insures complete reaction
More informationRefined from crude oil, has relatively low melting point (50-70 C) and relatively brittle. Refined from petroleum, has medium melting range (60 C).
The primary use of waxes in dentistry is to make a pattern of appliances prior to casting as many dental restorations are made by lost-wax technique, in which a pattern is made in wax and put in the mold
More informationCompiled By - RAMAKANT RANA
Q. Explain the common allowances provided on patterns. Pattern Allowances (i) Shrinkage:- When any metal cools, it naturally shrinks in size. Hence, if the actual object itself is used for the pattern,
More information600 Cannonball Lane O Fallon, MO Bruce Willson.
600 Cannonball Lane O Fallon, MO 63366 Bruce Willson http://www.ofalloncasting.com/ Definition of an Engineer o Someone who knows almost everything o About almost nothing 70 95% of total Product Cost is
More informationChapter Name of the Topic Marks
Chapter Name of the Topic Marks 3 3 FOUNDRY Specific Objectives: Study of various foundry processes Contents: 3.1 Introduction: Types of Foundries Advantages and disadvantages of foundry process. 3.2 Pattern
More informationApplications of FFF in The Metal Casting Industry
Applications of FFF in The Metal Casting Industry Rui Jiang, Wanlong Wang, James G. Conley Department of Mechanical Engineering Northwestern University Evanston, ll., 60208 Abstract Fast Freeform Fabrication
More informationGuide for Casting Titanium with SuperCast Contents
Contents Contents... 1 Introduction:... 2 Flask Preparation Process... 2 Prepare the wax-up model... 2 Preparing the metal flask... 2 Mixing the investment... 3 Vacuuming the mixture... 4 Solidifying the
More informationSubtractive and Additive types of sculpture: Professor Sue Dawe
Slide 1 Professor Sue Dawe Slide 2 Sculpture is the art of carving, casting, modeling or assembling materials into three dimensional figures Relief Sculptures: Three dimensional forms that are raised from
More information