Method of manufacturing forming die

Details Method of manufacturing forming die Method of manufacturing forming die

1994-12-27

1996-04-30

Watts, Douglas D.

Metal tools and implements, making

Blank or process

Die

72467, 761074, B21C 302

Patent

active

055114504

ABSTRACT:
A forming die is composed of a die member and a reinforcing member for applying compressive forces radially inwardly to the die member. To manufacture the forming die, tensile stresses applied to elements divided from the die member are simulated, and a fracture region of the die member is specified based on the simulated tensile stresses. An inner circumferential configuration of the reinforcing ring, or an outer circumferential configuration of the die member is determined for cooperation with the die member or the reinforcing ring in producing compressive stresses in the die member to counteract tensile stresses in the fracture region. The reinforcing ring with the inner circumferential configuration or the die member with the outer circumferential configuration is formed, and either the reinforcing ring with the inner circumferential configuration is over the die member, or the reinforcing ring is fitted over the die member with the outer circumferential configuration.

REFERENCES:
patent: 4377943 (1983-03-01), Fuchs
patent: 5019114 (1991-05-01), Gronbaek
patent: 5165309 (1992-11-01), Porucznik et al.
patent: 5390526 (1995-11-01), Balazs et al.

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