Non-circular slug splitter punch

Details Non-circular slug splitter punch Non-circular slug splitter punch

1988-08-23

1990-03-06

Yost, Frank T.

Cutting

Tool or tool with support

Cutting couple type

83688, 83689, 30360, B26F 114

Patent

active

049055577

ABSTRACT:
The punch comprises peripheral cutting edges and lateral cutting edges. The peripheral edges cut a slug in the desired shape, for examples, rectangular, square, oval, trapezoidal, D and double D-shaped, etc. while the lateral edges cut transversely from one peripheral edge to an opposite peripheral edge, thereby splitting the slug. Lateral cutting edges provide a dividing line across the working face. Surfaces and cutting edges on each side of the dividing line are similar and canted at opposite angles. Lateral cutting edges and peripheral cutting edges at their juncture provide pyramidal cutting sections which initially pierce the workpiece and initiate lateral slug splitting. This split grows from the slug periphery toward the center. Splitting is complete before a substantial portion of the slug periphery is cut.

REFERENCES:
patent: 294991 (1884-03-01), Goodman et al.
patent: 389404 (1888-09-01), O'Neill
patent: 2214701 (1940-09-01), Scull
patent: 3296905 (1967-01-01), Killaly
patent: 4353164 (1982-10-01), Linquist et al.
patent: 4543722 (1985-10-01), Adleman et al.

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