Method for rounding off the edge of a recess on a piston

Details Method for rounding off the edge of a recess on a piston Method for rounding off the edge of a recess on a piston

2007-03-06

2007-03-06

Carter, Monica (Department: 3722)

Turning

Process of turning

C029S888040, C029S558000, C029S888049, C082S114000

Reexamination Certificate

active

10381181

ABSTRACT:
The aim of the invention is to produce a rounding off on a diesel piston comprising a combustion recess and valve recesses that lie at a slant in relation to the piston floor. The rounding off should not significantly increase particle emissions. To this end, the edge of the recess is rounded off in the area of the valve recesses in a special machining phase, the cutting edges of the cutting tool being guided in one or more planes that are parallel to the inclined valve recess surface.

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patent: 0316703 (1991-06-01), None

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