Sheet Metal Forming Processes and Die Design

Sheet Metal Forming Processes and Die Design
اسم المؤلف
VUKOTA BOLJANOVIC
التاريخ
27 أكتوبر 2017
المشاهدات
498
التقييم
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Sheet Metal Forming Processes and Die Design
VUKOTA BOLJANOVIC, Ph.D.
Doctor in Technical Science
TABLE OF CONTENTS
Preface
List of Tables
Introduction
Basic Characteristics of Sheet-Metal Forming Processes
Categories of Sheet-Metal Forming Processes
Characteristics of Sheet-Metal Parts and Their Technological Properties
PART I THEORETICAL FUNDAMENTALS
Chapter 1
Chapter 2
The Structure of Metals
Introduction
The Crystal Structure of Metals
Deformation and the Strength of Crystals
Imperfections in the Crystal Structure of Metals
Grain Sizes and Boundaries
Strain Hardening
Recovery and Recrystalization
Mechanical Behavior of Materials
Introduction
Stress / Strain Curves
Ductility
True Stress and True Strain
PART ZI MANUFACTURING PROCESSES
Chapter 3
Chapter 4
Shearing Process
Mechanics of Shearing
Shearing Forces
Shearing with Straight Parallel Cutters
Shearing with Straight Inclined Cutters
Shearing with Rotary Cutters
Blanking and Punching
Blanking and Punching Mechanism
Blanking and Punching Clearances
Punch Force
Punch and Die with Parallel Cut Edges
Chapter 6
Punch and Die with Bevel-cut Edges
Material Economy
Scrap Strip Layouts
Altering the Design of the Workpiece
Multi-line Layout
Utilizing Scrap from One Piece as Material for Another Piece
Shaving
Shaving a Punched Workpiece
Shaving a Blanked Workpiece
Bending
Introduction
Mechanics of Bending
Moment of Bending
Moment of Bending in Elastic-Plastic Domain
The Moment of Bending in the Purely Plastic Domain
Bending Forces
Force for a U-die
Forces for a Wiping Die
Forces for a V-die
Curling
Three-Roll Forming
Bend Radius
Minimum Bend Radius
Maximum Bend Radius
Bend Allowance
Springback
Clearance
Deep Drawing
Introduction
Mechanics of Deep Drawing
Deep Drawability
Forces
First Drawing Operation
SubsequentDrawing Operations
Blank Calculations for Symmetrical Shells
Determining Shape of Blank for Nonsymmetrical Shells
Rectangular Shells
Square Shells
Drawing Practice
Chapter 7
Defects During Deep Drawing
Lubrication in Drawing
Various Forming Processes
Stretch Forming
Nosing
Expanding
Dimpling
Spinning
Flexible Die Forming
Force in Die Forming
PART 111 DIE DESIGN
Chapter 8
Chapter 10
Basic Die Classifications and Components
Die Classifications
Basic Die Components
Blanking and Punching Dies
Introduction
Die Blocks
Die Opening Profile
Fastening to the Die Shoe
Sectioned Die
Calculation of Die Block Dimensions
Punches
Punch Face Geometry
Methods for Assembling Punches
Punch Calculations
Stripper Plates
Stripper Force
Stripper Design
Die Components for Guiding and Stopping
Stock Guides and Guide Rails
Die Stops and French Notch Punch
Positioning the Individual Blank
Pilots
Center of Die Pressure
Examples of Couting Die Designs
Bending Dies
Introduction
Simple Die Designs
10.2.1 U-Profile Bend Dies
10.2.2 V-profile Bend Dies
10.2.3 Universal Bending Dies
10.3 Dies of Complex Design
10.3.1 Closing Profile Dies
10.3.2 Special Bending Dies
10.3.3 Curling and Hinge Dies
10.3.4 Tube-forming Dies
10.3.5 Multiple-bend Dies
10.3.6 Combination Dies
10.3.7 Progressive Dies
Chapter 11 Deep Drawing Dies
11.1 Introduction
11.2 Draw Rings
11.2.1 Draw Rings with Corner Radius
11.2.2 Draw Rings with Conical Profile
11.3 Clearances and Tolerances
11.3.1 Calculation of the Dimensions of the Punch and Die
11.4 Blank Holders
11.4.1 Blank Holders
11.4.2 Blank Holder Pressure
11.4.3 Blank Holder Force
11.4.4 Draw Beads
11.5 Single-operation Dies
11.6 Multi-operation Dies
11.7 Progressive Dies
11.9 Ironing Dies
Drawing Dies for Pieces of Spherical and Parabolic Shape
Chapter 12 Various Forming Dies
12.1 Nosing Dies
12.2 Expanding and Bulging Dies
12.2.1 Expanding Dies
12.2.2 Bulging Dies
12.3 Flanging Dies
Chapter 13 Tool and Die Materials
13.1 Introduction
13.2 Carbon and Alloy Steels
13.2.1 Designations for Carbon and Alloy Steels
13.2.2 Effects of Various Alloy Elements in Steels
13.2.3 Carbon Steels
Alloy Steels
Machinability of Steels
Mechanical Properties of Steels
Applications of Carbon and Alloy Steels
Tool and Die Steels
Designation and Classification of Tool and Die Steels
Cold Work Tool and Die Steels
Nonferrous Metals
Nonmetallic Materials
Appendix 1
Appendix 2
Appendix 3 Miscellaneous Information
Glossary
Bibliography
Index
Blank Diameter of Drawn Shells
Metric System Tolerances on Linear Dimensions
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