Process for manufacturing a tool, particularly a tool for stampi

Details Process for manufacturing a tool, particularly a tool for stampi Process for manufacturing a tool, particularly a tool for stampi

1989-07-28

1991-10-15

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

Stratified or layered articles

295274, 264112, 264225, 264256, 264261, 264275, 264308, B23P 1700, B28B 116, B29C 3340, B32B 3100

Patent

active

050572563

ABSTRACT:
A method of manufacturing and using a resinous concrete in the production of forming tools for stamping, trimming and other treatments of sheet metal parts. The process includes first mixing at least one resin and hardening agent and then adding a siliceous pulverulent grain filler so that the gravimetric ratio between the resin and hardening agent and the filler when mixed for a time depending on the working temperature at a work site will result in a mixture of filler grains and resin essentially free of macromolecules and having remaining spaces between the grains filled with the essentially macromolecular free resin thereby eliminating the formation of bending bridges. The final mixture is then poured into a casing containing working parts and moulding elements to create forming tools useable after the mixture polymerizes.

REFERENCES:
patent: 2836530 (1958-05-01), Rees
patent: 3101065 (1963-08-01), Kalis
patent: 3548050 (1970-12-01), Mozer
patent: 4073049 (1978-02-01), Lint
patent: 4536364 (1985-08-01), Lindskog
patent: 4601867 (1986-07-01), Martell et al.
patent: 4750827 (1988-06-01), Assus et al.
patent: 4834929 (1989-05-01), Dehoff et al.

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