Manufacture of isostress contoured dies

Details Manufacture of isostress contoured dies Manufacture of isostress contoured dies

1975-11-24

1977-05-24

DiPalma, Victor A.

Metal working

Method of mechanical manufacture

Shaping by direct application of fluent pressure

29400M, 295271, 29558, 76107R, 164 7, 264219, 264313, B23P 1704

Patent

active

040246230

ABSTRACT:
Method for making isostress contoured dies by providing a cavity containing multiple vertical supports. A flexible material is tensionally secured across the top of the cavity to contact the supports and pneumatically deformed to assume an isostress contour. A form setting material is deposited and cured against the isostress contoured flexible material. The cured material may then be used directly as a die or as a die-forming master pattern.

REFERENCES:
patent: 3540315 (1970-11-01), Freitag
patent: 3550479 (1970-12-01), Pfaff, Jr.
patent: 3632695 (1972-01-01), Howell
patent: 3638474 (1972-02-01), Hannaford

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