Cover image for Precision die design : by the die expansion method
Title:
Precision die design : by the die expansion method
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Publication Information:
Switzerland : Trans Tech Pubn., 2009
Physical Description:
xix, 231 p. : ill. ; 25 cm.
ISBN:
9780878491513

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30000010222150 TS253 I24 2009 Open Access Book Book
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Summary

Summary

Volume is indexed by Thomson Reuters BCI (WoS).This book presents a new method for the design of the precision dies used in cold-forging, extrusion and drawing processes. The method is based upon die expansion, and attempts to provide a clear-cut theoretical basis for the selection of critical die dimensions for this group of precision dies when the tolerance on product diameter (or thickness) is specified. It also presents a procedure for selecting the minimum-production-cost die from among a set of design alternatives.


Table of Contents

1.1 Precision Dies. 1.2 The Die Expansion Method.p. 1
1.3 Scope of Methodp. 3
2.1 The Die Containerp. 5
2.2 Die Expansionp. 6
2.3 Design Criteria. 2.4 Monoplex Designp. 9
3.1. Introductionp. 29
3.2 Duplex Die Containersp. 30
3.3 Triplex Die Containersp. 39
3.4 Quadruplex Die Containersp. 45
3.5 N-Plex Die Containersp. 51
3.6 Radial Interferences and Diameters of Cylinders in Multiplex Diesp. 58
3.7 Force-Fit Loads in Cylinder Assemblyp. 64
3.8 Effects of Die Container Parametersp. 65
3.9 Die Geometric Constants for Higher Order n-plex Diesp. 72
3.10 Total Elimination of Die Expansionp. 75
4.1 Introduction. 4.2 Die Geometric Constant as a Function of Die Diameter Ratiop. 83
4.3 Maximum and Allowable Die Stresses. 4.4 Design Procedure for Completely Closed Cavity Diesp. 89
4.5 Impact Extrusion Diesp. 98
4.6 Conical Converging Diesp. 108
4.7 Direct Extrusion Diesp. 111
4.8 Indirect Extrusion Diesp. 119
4.9 Wire/Rod Drawing Diesp. 123
4.10 Tube Drawingp. 126
5.1 Introduction. 5.2 Theoretical Analysisp. 135
5.3 Effects of Die Parametersp. 142
5.4 Design Procedurep. 145
5.5 Application to a Typical Design Problemp. 146
6.1 Introduction. 6.2 Assumptionsp. 153
6.3 Die Production Cost Functionp. 154
6.4 Cost of Press-Fitting of Cylindersp. 169
6.5 Cost of Die Material. 6.6 Die Selection Criteriap. 170
6.7 Procedure for Selection of Die Containerp. 171
6.8 Case Studyp. 173