Method of manufacturing a contoured stamping die

Details Method of manufacturing a contoured stamping die Method of manufacturing a contoured stamping die

1980-04-11

1981-07-14

Parker, Roscoe V.

Metal tools and implements, making

Blank or process

Die

29558, B24B 100, B23C 320, B21K 520

Patent

active

042779880

ABSTRACT:
A method for manufacturing a contoured die wherein a workpiece is formed with depressions extending across the top surface of the workpiece from front to back thereof. The depressions are formed spaced apart from one another to retain flat top surface portions therebetween. Smoothly contoured edge surfaces are then formed on the workpiece in the regions of intersection of the top surface with the front and back surfaces, to produce a die with ridge projections surrounded by top surface portions having a concave elevational contour as viewed in a vertical plane perpendicular to the side surfaces of the workpiece.

REFERENCES:
patent: 1920699 (1933-08-01), Hurley
patent: 2165008 (1939-07-01), Rosenberg
patent: 2440963 (1948-05-01), Luce
patent: 2552455 (1951-05-01), Pond
patent: 3100411 (1963-08-01), Airlie
patent: 3151504 (1964-10-01), Pare et al.
patent: 3498158 (1970-03-01), Kougel
patent: 3895947 (1975-07-01), Sarka
patent: 3910138 (1975-10-01), Sinha et al.
patent: 4024623 (1977-05-01), Kum
patent: 4133227 (1979-01-01), Crowe et al.

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