Designing for machining round holes
|
|
- Briana Mosley
- 6 years ago
- Views:
Transcription
1 Designing for machining round holes Introduction There are various machining processes available for making of round holes. The common processes are: drilling, reaming and boring. Drilling is a machining process used to create round holes in a work piece. Figure M3.3.1 shows the drilling operation. Figure M3.3.1: Drilling operation Reaming is a process used to enlarge the existing round hole to the required accurate size and smooth finish to the surface of the hole by using an end cutting tool. The tool used for reaming operation is called reamer. Figure M3.3.2 illustrates the reaming operation. Figure M3.3.2: Reaming operation Boring is a machining operation that enlarges an existing hole by removing metal with a rigidly mounted single-point cutting tool. This operation is carried out either by rotating the work piece of the tool on the center line of the hole or feeding the tool into the work parallel
2 to the axis of rotation. In this case, the rigidity of the spindle and the boring tool determines the accuracy of the cut. Application of hole machining processes Holes are produced by machining operation when other methods such as casting, forging, molding, extruding, stamping, etc. fails to produce the hole or doesn t produce with necessary size, accuracy or other functional requirements. When specific requirements such as accuracy of diameter, location, straightness, or direction are required in components, bored holes are recommended. Typical parts with bored holes include gearboxes, sewing-machine arms, bearings, hydraulic cylinders, pump housings, die sets for metal stamping, machine-tool frames and many other machine components. Suitable materials Since it is easy to use carbide, ceramic and diamond-tipped single point cutting tools in the hole boring process, it is possible to process difficult to machine materials. With such type of material, machine speed and feed must be reduced with reduced machinability. Design recommendations The best way to minimize the cost of hole machining operation is simply to avoid them. Creating the hole by other means like cast, mold or pierce which will satisfy the functional requirements of the part is recommended. Though drilling operation is a roughing operation, other surface finishing operation reaming or boring operation is not recommended unless it is specified. Drilling: The recommended design rules for drilled holes are as follows: The drill bit should be always perpendicular to the drilling surface. This avoids the starting problems and also helps in ensuring the proper location of the hole.(refer Figure M3.3.3)
3 Figure M3.3.3: Entrance and exit surface should be perpendicular to the drill bit. The axis of the drill should always perpendicular to the exit surface. This avoids breakage problems as the drill leaves the work. (Refer Figure M3.3.3) Interrupted cuts are to be avoided when straightness of hole is important. If at all necessary, it is advised to use a guide bush at each re-entry surface. If holes with intersecting openings are unavoidable, the center point of the drill must remain in the work piece throughout the cut.(refer Figure M3.3.4) Figure M3.3.4: Center point of the drill in the work throughout the cut For economic reason, it is always preferred to use standard drill sizes whenever possible. Extra cost will be added to the part for drill grinding if nonstandard drills are used. Through holes are preferable than blind holes. It provides clearance to the tool and chip in secondary operations like reaming, tapping, or honing. The drill bit always generates pointed holes in blind holes. Flat bottoms are costlier in blind holes as secondary operations are required.(refer Figure M3.3.5)
4 Figure M3.3.5: Use standard drill-point angles for bottoms Recommended depth of the hole is maximum 3 times that of the diameter of the hole. If it is more, it creates chip clearance problems and the possibility of deviations from straightness. Special tooling, equipment and techniques are used for deep hole drilling. For example, Gun barrel bored holes can be as deep as 5 times that of the hole diameter. Deeper holes are possible but can cause tool deflection and breakage problems. For deep, narrow holes, consider stepped diameters as shown in Figure M Figure M3.3.6: Avoid deep, narrow holes A minimum diameter about 3mm is preferred for hole drilling as small diameter drills are more prone to breakage. For large finished hole, cast in holes are preferred in the work piece prior to the drilling operations. This saves material and reduces the power required for drilling. If several drilled holes are to be made in the part, it is required to dimension them from the same surface to simplify fixturing. (Refer Figure M3.3.7)
5 Figure M3.3.7: Locate all holes from one surface in so far as possible. In the design and drawing of holes, rectangular coordinates are to be used than angular coordinate to designate the location of the hole. It will be easier for the machinist to use in laying out the part or a drill fixture. (Refer Figure M3.3.8) Figure M3.3.8: Rectangular coordinates are preferable to angular coordinates for showing hole locations in drawings. Design of parts should be such that all holes can be drilled from one side or from the few number of sides. This would simplify the tooling and minimize handling time. It is required to provide space for drill bushing close to the work piece surface to be drilled.(refer Figure M3.3.9)
6 Figure M3.3.9: Allow room for drill bushings close to the work piece surface to be drilled Standard size holes, fasteners, and other screw threads need to be used to minimize the number of drill spindles and drill changes. For multiple-drilling arrangements as a rule of thumb the spacing between the holes should not be less than 19 mm for small holes of 6-mm diameter or less. Although in some cases 13 mm is possible. Reaming The following design practices are recommended for reaming: 1. In the practice guide, bush is used for reaming operation when hole location is critical. But if the hole location or alignment is not proper, it is not advisable to depend on reaming to correct location or alignment discrepancies unless the discrepancies are very small. 2. Intersecting drilled and reamed holes are recommended to avoid if possible, to prevent tool breakage and burr-removal problems. (Refer Figure M3.3.10) Figure M3.3.10: Avoid intersecting drilled and reamed holes if at all possible
7 3. If a blind hole requires reaming, it is required to allocate for extra drilled depth to provide room for chips. (Refer Figure M3.3.11) Figure M3.3.11: Provide extra hole depth if blind holes are to be reamed. Boring Recommended design practice for boring are as follows: 1. Avoid designing holes with interrupted surfaces. Interrupted cuts tend to throw holes out of round and cause vibration and tool wear. 2. Designing of holes with a maximum depth-to-diameter ratio of 4:1 or 5:1 is recommended. With higher ratio, accuracy will be lost due to boring bar deflection. In exceptions, diameter ratios of 8:1 can be designed with carbide boring bars. It is recommended to use stepped diameters to limit the depth of the bored surface if deep holes are unavoidable.(refer Figure M3.3.12) Figure M3.3.12: Avoid deep, narrow holes 3. Blind holes are to be avoided. If blind holes are needed, then depth of the rough hole should be deeper than the bored portion by an amount equal to at least onefourth the hole diameter. (Figure M3.3.13)
8 Figure M3.3.13: Blind holes to be bored should be one-fourth diameter deeper than the final bored hole to allow space for chips. 4. Boring is more expensive than drilling and reaming. Recommended only if it is extremely necessary. 5. The part must be rigid enough to eliminate deflection or vibration which is generated as a result of cutting forces. Sufficient precaution need to be taken in the work piece and fixture design to avoid deflection of the part when it is clamped in the fixture. Otherwise machined surfaces will be off location when the part springs back from its clamped position. Dimensional factor The accuracy and straightness of drilled holes depends upon the correctness of drill sharpening. The play and lack of rigidity in the typical drill spindle also affect the accuracy and straightness of drilled holes. Drill bushing also affects the accuracy. Thermal coefficient of expansion of material to be drilled has influence on diameter close tolerance hole. For example: Aluminum which expands during drilling and then contracts on cooling.
9 Recommended tolerances Table M3.3.1 to M3.3.3 provides the recommended tolerances of drilled, reamed, and bored holes. Table M3.3.1: Recommended Tolerances for Diameters of Drilled Holes (Source: Design for Manufacturability Handbook by James G Bralla, 2nd Ed) Hole diameter, mm Recommended tolerance, mm 0 to , Over , Over , Over , Over , Over , Table M3.3.2: Recommended Tolerances for Diameters of Reamed Holes (Source: Design for Manufacturability Handbook by James G Bralla, 2nd Ed) Hole diameter, mm Recommended tolerances, mm 0 13 ± to ± Over ± Over ± 0.05 Over ± 0.08
10 Table M3.3.3: Recommended Tolerances for Diameters and Depths of Bored Holes (Source: Design for Manufacturability Handbook by James G Bralla, 2nd Ed) Hole diameter, mm Normal tolerance, mm Close tolerance, mm Precision production boring 0 19 ±0.025 ± Over ± 0.04 ± Over ± 0.05 ± 0.01 Over ± 0.08 ± 0.02 Over ± 0.1 ± Over ± 0.13 ± 0.05 Jig boring 0 25 ± ± Over 25 ± ± Depth (blind or partially bored holes) Precision production boring ± 0.08 ± Jig boring ± ± 0.013
Design for machining
Design for machining Machining processes are material removal processes which are a family of shaping operation in which excess or undesired material is removed from the work piece finally remaining with
More informationDesign for machining
Multiple choice questions Design for machining 1) Which one of the following process is not a machining process? A) Planing B) Boring C) Turning D) Forging 2) The angle made between the rake face of a
More informationOther Types Of Bushes
Other Types Of Bushes Circuit board drill bushes: Designed to accommodate larger shank for making drill on circuit board Chip breaker bushes: Designed with chip breaking notch. Reduces friction and heat
More informationVarious other types of drilling machines are available for specialized jobs. These may be portable, bench type, multiple spindle, gang, multiple
Drilling The process of making holes is known as drilling and generally drilling machines are used to produce the holes. Drilling is an extensively used process by which blind or though holes are originated
More informationIntroduction to Machining: Lathe Operation
Introduction to Machining: Lathe Operation Lathe Operation Lathe The purpose of a lathe is to rotate a part against a tool whose position it controls. It is useful for fabricating parts and/or features
More informationChapter 23: Machining Processes: Turning and Hole Making
Manufacturing Engineering Technology in SI Units, 6 th Edition Chapter 23: Machining Processes: Turning and Hole Making Chapter Outline 1. Introduction 2. The Turning Process 3. Lathes and Lathe Operations
More informationSpecial reamers. Figure N 1 Reamer with descending cutting edges in carbide (Cerin)
Special reamers There is a wide category of special reamers, ie non-standard, that are suitable to address particular problems encountered in the finishing holes, both for maintenance of individual pieces
More informationThe jigs and fixtures are the economical ways to produce a component in mass production system. These are special work holding and tool guiding device
The jigs and fixtures are the economical ways to produce a component in mass production system. These are special work holding and tool guiding device Quality of the performance of a process largely influenced
More informationCopyright
, Engineers Edge 2006-2011 Design for Milling Machining Training Written by Kelly L. Bramble Engineers Edge 2006, 2007, 2008, 2009, 2010, 2011 7.1 , Engineers Edge 2006-2011 Edited by: Kelly Bramble (Engineers
More informationChapter 23: Machining Processes: Hole Making Part A (Lathe Operations, Boring, Reaming, Tapping)
1 Manufacturing Processes (2), IE-352 Ahmed M El-Sherbeeny, PhD Spring 2017 Manufacturing Engineering Technology in SI Units, 6 th Edition Chapter 23: Machining Processes: Hole Making Part A (Lathe Operations,
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 informationTypical Parts Made with These Processes
Turning Typical Parts Made with These Processes Machine Components Engine Blocks and Heads Parts with Complex Shapes Parts with Close Tolerances Externally and Internally Threaded Parts Products and Parts
More information11/15/2009. There are three factors that make up the cutting conditions: cutting speed depth of cut feed rate
s Geometry & Milling Processes There are three factors that make up the cutting conditions: cutting speed depth of cut feed rate All three of these will be discussed in later lessons What is a cutting
More informationBASIC TECHNICAL INFORMATION FOR REAMERS FLUTE STYLES
BASIC TECHNICAL INFORMATION FOR HANNIBAL CARBIDE would like to inform you of some basic technical knowledge regarding reamers. Following these guidelines will reduce overall set-up time, while increasing
More informationChapter 22: Turning and Boring Processes. DeGarmo s Materials and Processes in Manufacturing
Chapter 22: Turning and Boring Processes DeGarmo s Materials and Processes in Manufacturing 22.1 Introduction Turning is the process of machining external cylindrical and conical surfaces. Boring is a
More informationLathe. A Lathe. Photo by Curt Newton
Lathe Photo by Curt Newton A Lathe Labeled Photograph Description Choosing a Cutting Tool Installing a Cutting Tool Positioning the Tool Feed, Speed, and Depth of Cut Turning Facing Parting Drilling Boring
More informationChapter 23. Machining Processes Used to Produce Round Shapes: Turning and Hole Making
Chapter 23 Machining Processes Used to Produce Round Shapes: Turning and Hole Making R. Jerz 1 2/24/2006 Processes Turning (outside surface) straight, taper, facing, contour, form, cut-off, threading,
More informationChapter 22 MACHINING OPERATIONS AND MACHINE TOOLS
Chapter 22 MACHINING OPERATIONS AND MACHINE TOOLS Turning and Related Operations Drilling and Related Operations Milling Machining Centers and Turning Centers Other Machining Operations High Speed Machining
More informationTooltech Precision Reamers are designed to meet hole geometry requirements in the complex and demanding machining environment of today s manufacturing
BLADED REAMERS Tooltech Precision Reamers are designed to meet hole geometry requirements in the complex and demanding machining environment of today s manufacturing industry. The innovative design of
More informationMaterials Removal Processes (Machining)
Chapter Six Materials Removal Processes (Machining) 6.1 Theory of Material Removal Processes 6.1.1 Machining Definition Machining is a manufacturing process in which a cutting tool is used to remove excess
More informationUNIT 4: (iii) Illustrate the general kinematic system of drilling machine and explain its working principle
UNIT 4: Drilling machines: Classification, constructional features, drilling & related operations, types of drill & drill bit nomenclature, drill materials. Instructional Objectives At the end of this
More informationSHAPING AND PLANING Shaping and planing
SHAPING AND PLANING Shaping and planing the simplest of all machine operations Straight line cutting motion with single-point cutting tool creates smooth flat surfaces. Mainly plain surfaces are machined
More informationGENERAL MACHINING PRACTICE FOR CMI ELECTROMAGNETIC IRON
GENERAL MACHINING PRACTICE FOR CMI ELECTROMAGNETIC IRON Electromagnetic Iron can be readily machined when proper tool angles are used. Tools should be ground to more acute cutting edge angles than are
More informationMIROKU MACHINE TOOL, INC.
MIROKU MACHINE TOOL, INC. MIROKU GUNDRILL MIROKU STOCK GUNDRILL LIST World famous Miroku can be delivered immediately. Custom-sized Drills are available within one month after order. Sufficient tool inventory
More informationWHAT? WHERE? HOW?
JIGS WHAT? WHERE? HOW? Introduction Mass production aims at high productivities to reduce unit cost and inter-changeabilites to facilitate easy assembly. Jigs are useful in mass production. They provide
More informationWhy gundrills? Dr. Viktor P. Astakhov, Independent Consultant
Why gundrills? Dr. Viktor P. Astakhov, Independent Consultant Gundrilling, one of the basic and frequently performed material removal processes in the automotive, die and mold, and turbine industries,
More informationTURNING BORING TURNING:
TURNING BORING TURNING: FACING: Machining external cylindrical and conical surfaces. Work spins and the single cutting tool does the cutting. Done in Lathe. Single point tool, longitudinal feed. Single
More informationZET1 drill REGRINDING MANUAL
ZET1 drill REGRINDING MANUAL April 28, 2009 MITSUBISHI MATERIALS CORPORATION CARBIDE & TOOLS DIVISION Confirm the cutting edge Confirm the worn and damaged condition of the cutting edge. In case of extensive
More informationROOP LAL Unit-6 Drilling & Boring Mechanical Engineering Department
Lecture 4 Notes : Drilling Basic Mechanical Engineering ( Part B ) 1 Introduction: The process of drilling means making a hole in a solid metal piece by using a rotating tool called drill. In the olden
More informationStudent, Department of Mechanical Engineering, Knowledge Institute of Technology, Salem, Tamilnadu (1,3)
International Journal of Scientific & Engineering Research, Volume 7, Issue 5, May-2016 11 Combined Drilling and Tapping Machine by using Cone Mechanism N.VENKATESH 1, G.THULASIMANI 2, S.NAVEENKUMAR 3,
More informationMACHINING PROCESSES: TURNING AND HOLE MAKING. Dr. Mohammad Abuhaiba 1
MACHINING PROCESSES: TURNING AND HOLE MAKING Dr. Mohammad Abuhaiba 1 HoweWork Assignment Due Wensday 7/7/2010 1. Estimate the machining time required to rough cut a 0.5 m long annealed copper alloy round
More informationTRAINING MANUAL. Part 3 REAMERS
PRESTO INTERNATIONAL UK LTD TRAINING MANUAL Part 3 REAMERS 1 Purpose of Reamers REAMERS A reamer produces an accurate and highly finished round hole to a much finer tolerance than that produced by a drill.
More informationDrilling. Drilling is the operation of producing circular hole in the work-piece by using a rotating cutter called DRILL.
Drilling Machine Drilling Drilling is the operation of producing circular hole in the work-piece by using a rotating cutter called DRILL. The machine used for drilling is called drilling machine. The drilling
More informationProduct Information Report Maximizing Drill Bit Performance
Overview Drills perform three functions when making a hole: Forming the chip The drill point digs into the material and pushes up a piece of it. Cutting the chip The cutting lips take the formed chip away
More informationMetal Cutting - 5. Content. Milling Characteristics. Parts made by milling Example of Part Produced on a CNC Milling Machine 7.
Content Metal Cutting - 5 Assoc Prof Zainal Abidin Ahmad Dept. of Manufacturing & Industrial Engineering Faculty of Mechanical Engineering Universiti Teknologi Malaysia 7. MILLING Introduction Horizontal
More informationReamer Basics. Fixed Reamers The reamer size is fixed and any size reduction due to wear or sharpening cannot be reclaimed
1 Reamer Basics Reamers are available in a variety of types, materials, flute styles and sizes The typical reamer is a rotary cutting tools designed to machine a previously formed hole to an exact diameter
More informationbcprecision Devices, Inc. HYDRAULIC ARBORS AND CHUCKS
UNEQUALED WORK HOLDING ACCURACY for: grinding; balancing; inspection; boring; facing; reaming; drilling; turning; shaving; hobbing and honing b SQUARENESS r CONCENTRICITY f PARALLELISM e ROUNDNESS v ALIGNMENT
More informationManufacturing Sun Cartridge Cavities
Manufacturing Sun Cartridge Cavities The following Technical Tip discusses a variety of points that should be considered when manufacturing a Sun cavity. Many of the items discussed could be classified
More informationBHJ Products, Inc. Parts List & Instructions
Product Name: Lifter-Tru Kit for General Motors LS V8 Page 1 of 5 Kit Contents: 2x End Plates 2x Threaded Adjustment Sleeves 1x Front Angle Bracket 2x M10-1.5 x 65 Hex Head Bolts * 2x Angle Adapter Blocks
More informationWhat Does A CNC Machining Center Do?
Lesson 2 What Does A CNC Machining Center Do? A CNC machining center is the most popular type of metal cutting CNC machine because it is designed to perform some of the most common types of machining operations.
More informationRockin' the Rockers. Ed Hollingsworth
Rockin' the Rockers Ed Hollingsworth I'm spending my spare time these days rebuilding a 1974 Triumph TR6. I had the well-worn 2.5 liter straight six engine all apart, and was assessing the toll that 40
More informationCOLLEGE OF ENGINEERING MACHINE SHOP FACILITIES AND PRACTICES Prepared by Mike Allen July 31, 2003 Edited by Scott Morton February 18, 2004
1 COLLEGE OF ENGINEERING MACHINE SHOP FACILITIES AND PRACTICES Prepared by Mike Allen July 31, 2003 Edited by Scott Morton February 18, 2004 I. OBJECTIVE To provide an overview and basic knowledge of the
More informationMULTI-FUNCTION-TAPS 7
Taps E11 2 ULTI-FUNCTION-TAPS 7 8 SL-TAFLET Technical Features thread forming and removing the seams typical for thread forming. reamer cuts the crests of the formed thread thus partially or fully removing
More informationLANDMARK UNIVERSITY, OMU-ARAN
LANDMARK UNIVERSITY, OMU-ARAN LECTURE NOTE: DRILLING. COLLEGE: COLLEGE OF SCIENCE AND ENGINEERING DEPARTMENT: MECHANICAL ENGINEERING PROGRAMME: MECHANICAL ENGINEERING ENGR. ALIYU, S.J Course code: MCE
More informationMachine Your Fishing Reel
Machine Your Fishing Reel You will be well prepared for the coming season if you start on this smooth-running job now. IF you're an enthusiastic fisherman and have a lathe in your workshop, we'll say no
More informationCNC Cooltool - Milling Machine
CNC Cooltool - Milling Machine Module 1: Introduction to CNC Machining 1 Prepared By: Tareq Al Sawafta Module Objectives: 1. Define machining. 2. Know the milling machine parts 3. Understand safety rules
More informationOverview. Linear Motion and Assembly Technologies /11 Aluminum Framing. Bosch Rexroth Corp. Section 15: Tools
8981 500 201 08/11 Aluminum Framing Linear Motion and Assembly Technologies 1 Section : Tools Overview With Bosch Rexroth aluminum structural framing, you can either specify profiles square cut to length,
More informationLathe Accessories. Work-holding, -supporting, and driving devices
46-1 Lathe Accessories Divided into two categories Work-holding, -supporting, and driving devices Lathe centers, chucks, faceplates Mandrels, steady and follower rests Lathe dogs, drive plates Cutting-tool-holding
More informationTrade of Toolmaking Module 2: Turning Unit 3: Drilling, Reaming & Tapping Phase 2
Trade of Toolmaking Module 2: Turning Unit 3: Drilling, Reaming & Tapping Phase 2 Published by SOLAS 2014 Unit 3 1 Table of Contents Document Release History... 3 Unit Objective... 4 Introduction... 4
More informationDrill Bit Sharpening Attachment. Parts
Parts Base Plate Guide Drill Holder Setting Template Magnifier Instruction Drill Bit Sharpening Attachment With the patented Tormek Drill Bit Sharpening Attachment DBS-22, you can sharpen your drill bits
More informationRotary Engraving Fact Sheet
Rotary Engraving Fact Sheet Description Rotary engraving is the term used to describe engraving done with a rotating cutting tool in a motorized spindle. The tool, or cutter, cuts into the surface of the
More informationMachining Processes IME 240
Machining Processes IME 240 Material Removal Processes Machining is the broad term used to describe removal of material from a workpiece Includes Cutting, Abrasive Processes (grinding), Advanced Machining
More informationINSTRUCTIONS
IMPORTANT: THIS IS A HIGH PERFORMANCE PART AND IMPROPER INSTALLATION COULD RESULT IN INJURY OR DEATH! NEVER WORK UNDER AN AUTOMOBILE THAT IS NOT PROPERLY SUPPORTED AND BLOCKED FROM ROLLING. NO CREDIT OR
More informationInternational Journal of Science and Engineering Research (IJ0SER), Vol 3 Issue 3 March , (P) X
Design And Optimization Techniques Using In Turning Fixture M Rajmohan 1, K S Sakthivel 1, S Sanjay 1, A Santhosh 1, P Satheesh 2 1 ( UG Student ) 2 (Assistant professor)mechanical Department, Jay Shriram
More informationTurning and Lathe Basics
Training Objectives After watching the video and reviewing this printed material, the viewer will gain knowledge and understanding of lathe principles and be able to identify the basic tools and techniques
More informationSEMMME3-056 Setting single and multi-spindle drilling machines for production
Setting single and multi-spindle drilling machines for production Overview This unit identifies the competences you need to prepare and set up single and multi-spindle drilling machines and associated
More informationROOP LAL Unit-6 Lathe (Turning) Mechanical Engineering Department
Notes: Lathe (Turning) Basic Mechanical Engineering (Part B) 1 Introduction: In previous Lecture 2, we have seen that with the help of forging and casting processes, we can manufacture machine parts of
More informationPrecision Cutting Tools RE-GRINDING AND RE-COATING SERVICE
Precision Cutting Tools RE-GRINDING AND RE-COATING SERVICE Price List 2017 Maximum economic efficiency thanks to refurbishing to original quality Even the most resilient tool will wear at some time when
More informationAhsanullah University of Science and Technology (AUST) Department of Mechanical and Production Engineering
Ahsanullah University of Science and Technology (AUST) Department of Mechanical and Production Engineering LABORATORY MANUAL For the students of Department of Mechanical and Production Engineering 1 st
More informationDeburring tools GUHRING YOUR WORLD-WIDE PARTNER. EW 100 G Deburring fork EWR 500 Deburring reamer EW 100 S Deburring spiral. Chamfering milling cutter
EW 100 G Deburring fork EWR 500 Deburring reamer EW 100 S Deburring spiral Chamfering milling cutter Front/back deburrer Ball nose deburrer EW Deburring reamer EWR 500 Deburring tools GURIG YOUR WORLD-WIDE
More informationRecommended Dimensional Guidelines for Single Screws
The Society of the Plastics Industry s Machinery Component Manufacturers Division Recommended Dimensional Guidelines for Single Screws The following recommendations for single screws of injection molding
More informationLocating Principles & Devices
Locating Principles & Devices 1 LOCATING PRINCIPLES To position the work piece w.r.t. to tool, to ensure precision in machining Locating: dimensional and positional relationship b/w work piece and tool
More informationInjection moulding. Introduction. Typical characteristics of injection moulded parts
Injection moulding Introduction Injection molding is generally used to produce thermoplastic polymers. It consists of heating of thermo plastic materials until it melts and then injecting into the steel
More informationFABRICATION MANUAL CCM Copper Composite You discover why ALPOLIC Copper composite material (CCM) is the building material of the future as soon as
FABRICATION MANUAL CCM Copper Composite You discover why ALPOLIC Copper composite material (CCM) is the building material of the future as soon as you fabricate it. Our CCM is as easy to fabricate as wood:
More informationLecture 3 2: General Purpose Machine Tools: Drilling Machines and Operations Dr. Parviz Kahhal
Lecture 3 2: General Purpose Machine Tools: Drilling Machines and Dr. Parviz Kahhal Drilling Operation Drilling is a process used extensivelybywhichthroughorblind holes are originated or enlarged in a
More informationChapter 24 Machining Processes Used to Produce Various Shapes.
Chapter 24 Machining Processes Used to Produce Various Shapes. 24.1 Introduction In addition to parts with various external or internal round profiles, machining operations can produce many other parts
More informationLEADING SOLUTIONS IN THREAD MILLING TECHNOLOGY
LEADING SOLUTIONS IN THREAD MILLING TECHNOLOGY Thread with Maximum Confidence, Depth, Versatility and Economy. Emuge Shur-Thread TM, Threads-All TM, Vario-Z and NPT Solid Carbide Thread Mills; and Gigant-ic
More informationProcedure for Longworth Chuck construction
Procedure for Longworth Chuck construction Overall construction The Longworth chuck is composed of three major components. Connected to the lathe spindle is some device that fastens to the first of two
More informationSmall Hole EDM Drilling
14 195 Small Hole EDM Drilling Small hole EDM (electrical discharge machining) drilling, also known as fast hole EDM drilling, hole popper, and start hole EDM drilling, was once relegated to a last resort
More informationMachining. Module 6: Lathe Setup and Operations. (Part 2) Curriculum Development Unit PREPARED BY. August 2013
Machining Module 6: Lathe Setup and Operations (Part 2) PREPARED BY Curriculum Development Unit August 2013 Applied Technology High Schools, 2013 Module 6: Lathe Setup and Operations (Part 2) Module Objectives
More informationLecture 15. Chapter 23 Machining Processes Used to Produce Round Shapes. Turning
Lecture 15 Chapter 23 Machining Processes Used to Produce Round Shapes Turning Turning part is rotating while it is being machined Typically performed on a lathe Turning produces straight, conical, curved,
More informationJigs and fixtures are devices used to facilitate production work, making interchangeable pieces of work possible at a savings in cost of production.
INTRODUCTION Over the past century, manufacturing has made considerable progress. New machine tools, high-performance cutting tools, and modern manufacturing processes enable today's industries to make
More informationCHAPTER 23 Machining Processes Used to Produce Various Shapes Kalpakjian Schmid Manufacturing Engineering and Technology 2001 Prentice-Hall Page 23-1
CHAPTER 23 Machining Processes Used to Produce Various Shapes Manufacturing Engineering and Technology 2001 Prentice-Hall Page 23-1 Examples of Parts Produced Using the Machining Processes in the Chapter
More informationINDEXABLE BORING BAR AND INSERTS FLAT TOP, CHIP CONTROL, CBN, AND PCD
INDEXABLE BORING BAR AND S FLAT TOP, CHIP CONTROL,, AND 80 Diamond.156 IC R.156.040 80 DIAMOND FLAT TOP 80 DIAMOND CHIP CONTROL AT6+ 0.003 ACD5031 ACD5031E AT6+ 0.007 ACD5071 ACD5071E AT6+ 0.015 ACD5151
More informationMANUFACTURING PROCESSES
1 MANUFACTURING PROCESSES - AMEM 201 Lecture 5: Milling Processes DR. SOTIRIS L. OMIROU Milling Machining - Definition Milling machining is one of the very common manufacturing processes used in machinery
More informationJig and Fixture Design. Chapter 1: Types and Functions of Jigs and Fixtures
Jig and Fixture Design Chapter 1: Types and Functions of Jigs and Fixtures Purpose of Tool Design Objectives: Provide simple, easy-to-operate tools for maximum efficiency Reduce manufacturing expenses
More informationEngis Corporation. Superabrasive Finishing Systems for Hydraulic Valves & Systems Machines Fixtures Tools
Engis Corporation Superabrasive Finishing Systems for Hydraulic Valves & Systems Machines Fixtures Tools Engis Single-Pass Process Do you Manufacture Hydraulic Components for Aerospace, Construction or
More informationCopyright 2010 Society of Manufacturing Engineers. FUNDAMENTAL MANUFACTURING PROCESSES Holemaking - HO
FUNDAMENTAL MANUFACTURING PROCESSES Holemaking - HO SCENE 1. HO78A, CGS: Hole Finishing Operations white text, centered on background FMP BKG, motion background SCENE 2. HO79A, SME2519, 02:26:30:00-02:26:42:00
More informationDeep Hole Gundrills and Associated Products
Deep Hole Gundrills and Associated Products Table of Contents Introduction... 2 The Gundrilling Process... 3 The Anatomy of a Gundrill... 4 Gundrill and Reamer Types... 5 Single Flute Gundrills... 6 Solid
More informationDESIGN FOR POLISHING AND PLATING
DESIGN FOR POLISHING AND PLATING Polishing and plating are generally considered to be a part of finishing process. Polishing processes Conventional polishing In conventional polishing, surface irregularities
More informationChapter 23 Drilling and Hole Making Processes. Materials Processing. Hole Making Processes. MET Manufacturing Processes
MET 33800 Manufacturing Processes Chapter 23 Drilling and Hole Making Processes Before you begin: Turn on the sound on your computer. There is audio to accompany this presentation. Materials Processing
More informationtechniques data file: #102 HONING SHORT BORES SUNNEN PRODUCTS CO MANCHESTER ROAD ST. LOUIS, MO U.S.A. PHONE:
SUNNEN H NING techniques data file: #102 HONING SHORT BORES SUNNEN PRODUCTS CO. 7910 MANCHESTER ROAD ST. LOUIS, MO 63143 U.S.A. PHONE: 314-781-2100 SUNNEN HONING TECHNIQUES TABLE OF CONTENTS SHORT BORES.................................................
More informationReaming. MAPAL MonoReam. Systematic versatility NEW
Reaming MAPAL MonoReam Systematic versatility NEW MAPAL MonoReam With the newly developed multi-bladed reamers in the 600, 700 and 800 series, MAPAL is offering a new, simple, highperformance, standardised
More informationTable of Contents. Production Options 3. Suggested Tooling 4. Special Considerations 4. Sawing 4. Holding 5. Turning 5. Milling 6.
Table of Contents Production Options 3 Suggested Tooling 4 Special Considerations 4 Sawing 4 Holding 5 Turning 5 Milling 6 Drilling 6 Threading 7 Grinding 7 Buffing and Polishing 8 Deburring 8 Lapping
More informationProduct Overview. for perfect connections
Product Overview for perfect connections TOOL HOLDERS FOR DRILLING, TAPPING & REAMING Smart solutions for high quality clamping systems in tapping applications Tapping solution range from M1 M200 Quick
More informationSetting vertical boring machines for production
Unit 318 Setting vertical boring machines for production UAN: Level: 3 Credit value: 91 GLH: 210 Relationship to NOS: Assessment requirements specified by a sector or regulatory body: Aim: F/600/5423 This
More informationAPRIL 2009 / NEW-100 / PAGE 1 OF 13
APRIL 2009 / NEW-100 / PAGE 1 OF 13 The standard UNIDEX line covers reaming applications from 5/16 to 1 1/4 diameter. The single indexable blade and high wear resistant carbide or cermet pads provide a
More informationHSS Specialists. Special design high speed steel drills for special machining tasks
HSS Specialists Special design high speed steel drills for special machining tasks Guhring s HSS Guhring has been a specialist in drilling tools for more than a century. This not only applies to the broad
More informationSunnen Honing Techniques
ABOVE AND BEYOND HONING Sunnen Honing Techniques data file: #102 honing short bores www.sunnen.com SUNNEN HONING TECHNIQUES TABLE OF CONTENTS SHORT BORES.................................................
More informationOther Lathe Operations
Chapter 15 Other Lathe Operations LEARNING OBJECTIVES After studying this chapter, students will be able to: Safely set up and operate a lathe using various work-holding devices. Properly set up steady
More informationLesson 2 Understanding Turning Center Speeds and Feeds
Lesson 2 Understanding Turning Center Speeds and Feeds Speed and feed selection is one of the most important basic-machining-practice-skills a programmer must possess. Poor selection of spindle speed and
More informationBHJ Products, Inc. Parts List & Instructions
Product Name: Lifter-Tru Kit for Ford Windsor & SVO Small Block V8 Page 1 of 5 Kit Contents: 2x End Plates 2x 5/8 Threaded Adjustment Sleeves 1x Front Angle Bracket 2x 5/8 Adjustment Sleeve Spacers * 1x
More informationDesign Guide: CNC Machining VERSION 3.4
Design Guide: CNC Machining VERSION 3.4 CNC GUIDE V3.4 Table of Contents Overview...3 Tolerances...4 General Tolerances...4 Part Tolerances...5 Size Limitations...6 Milling...6 Lathe...6 Material Selection...7
More informationTrade of Toolmaking. Module 5: Press Tools, Jigs & Fixtures, Mouldmaking Unit 2: Blanking Tool (Unguided) Phase 2. Published by
Trade of Toolmaking Module 5: Press Tools, Jigs & Fixtures, Mouldmaking Unit 2: Blanking Tool (Unguided) Phase 2 Published by SOLAS 2014 Unit 2 1 Table of Contents Document Release History... 3 Unit Objective...
More informationWork Holding Principles ITCD Rajeev Madhavan Nair
Work Holding Principles ITCD 301-001 Work Holding One of the most important elements of the machining process Work holder includes all devices that hold, grip or chuck a work piece to perform a manufacturing
More informationDeburring tools GUHRING YOUR WORLDWIDE PARTNER. EW 100 G Deburring fork EWR 500 Deburring reamer
EW 100 G Deburring fork EWR 500 Deburring reamer Chamfering milling cutter Front/back deburring mill Ball nose deburring mill EW Deburring reamer EWR 500 Deburring tools GURIG YOUR WORLDWIDE PARTER Deburring
More informationFeed Drawer Rebuild, for Models, 22HF, 16HF, 1600 machines
Knowledge Base Article Type: Instructions Feed Drawer Rebuild, for Models, 22HF, 16HF, 1600 machines Description: Instructions on How to properly remove and rebuild a Feed Drawer. WARNING Never work on,
More informationSYLLABUS. Apprenticeship Training Scheme
SYLLABUS For the trade of JIGS AND FIXTURE MAKER UNDER Apprenticeship Training Scheme Government of India Ministry of Labour & Employment Directorate General of Employment & Training New Delhi-110001 GENERAL
More informationUp to 5 3 from 5 to 10 4 from 10 to 18 6 from 18 to 35 8
Reamers They are the most used tools for the finishing holes. Can be divided into various categories, such as hand-reamers and those used in machine tools, reamers in highspeed steel, in carbide; inserted
More informationThe following equipment is used for the testing procedure outlined below.
FLUID TESTING EQUIPMENT AND PROCEDURES microtap USA - METHODOLOGY microtap Germany has designed and developed a unique torque controlled tapping machine with a special PC software. WinPCA is an control
More information