Method for machining an "O" ring retention groove into a curved

Details Method for machining an "O" ring retention groove into a curved Method for machining an "O" ring retention groove into a curved

1997-09-23

1999-01-12

Rose, Robert A.

Abrading

Abrading process

Ring, tube, bushing, sleeve, or cylinder abrading

451 28, B24B 516

Patent

active

058578978

ABSTRACT:
A method for cutting an "O" ring retention groove around the cutting edge of a hydropiercing die button. A groove machining tool is given a convex curved end surface the radius of which is slightly less than or, at most, substantially equal to the tightest concave radius that the end surface will have to sweep through as the groove is cut. Consequently, an accurate, slightly curved groove bottom surface is created for the "O" ring, while the machining tool will not bind as it moves through the tightest concave portion of the cutting path.

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patent: 5398533 (1995-03-01), Shimanovski et al.
patent: 5642970 (1997-07-01), Yamaguchi et al.
patent: 5779406 (1998-07-01), Astor

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