Combined machining apparatus for making piston rings

Details Combined machining apparatus for making piston rings Combined machining apparatus for making piston rings

1998-09-03

2000-10-24

Bryant, David P.

Metal working

Plural diverse manufacturing apparatus including means for...

Type of machine

29 27C, 29 33R, 2988807, B23B 700

Patent

active

061347639

ABSTRACT:
A combined machine tool for specific use in making a piston ring or the like from a workpiece is disclosed, in which on a common bed there are mounted: an outer and inner peripheral surface machining unit numerically controlled and having an outer peripheral surface machining section and an inner peripheral surface machining section which are operable together to simultaneously machine an outer peripheral surface and an inner peripheral surface of the workpiece, and a cut-split machining unit adapted to act on the workpiece machined over the outer and inner peripheral surfaces by the outer and inner peripheral surface machining unit, in a manner such as to machine, by cut-splitting, the so machined workpiece while it remains unaltered in position.

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