PR627

 

PRESS TOOLS IN METAL FORMING

Elements, classification of press tools - clearance between punch and die, shut height and daylight, press tonnage calculation - Strip layout, Basic rules, economic layout, bridge size, calculation of plug point/center of pressure.


Types of Press tools


Types and Role of tooling in the deformation system - Tools for cold extrusion, force analysis, analogue method, nomograms - Tool design - Punch pressure significances - Tolerancing cold extrudes based on VOl data - Design chart for a complete sequence of producing a cold extrude.


Forging Tools - Design of Upsetting tools.


Bending and Forming tools, Dies for headers, transfer mechanisms. Design of tool for deep drawing Cutting tools - methods of reducing forces, die pillar set, fine blanking tools.


REFERENCES

1) Paquin Jr,, “Die Design Fundamentals”, New York Industrial Press, 1987.

2) Dallas, B. Daniel,, “Progressive Dies”, Michigan-SME, 1994.

3) Smith A David, “Die Design Hand Book”, SME, 1990.