Production process of a piston

Details Production process of a piston Production process of a piston

1996-03-08

1997-08-05

Cuda, Irene

Metal working

Method of mechanical manufacture

Prime mover or fluid pump making

2988804, 92222, 92223, 21912166, B23P 1500

Patent

active

056530218

ABSTRACT:
To improve the abrasion resistance by increasing the ratio of copper content in the copper-type alloy layer on the periphery of the ring groove of a piston. A peripheral groove having a section of a roughly large trapezoidal shape larger than that of the ring groove is formed preliminarily on the outer peripheral face of the piston. While the powder of a copper-type alloy material is supplied to this peripheral groove, the laser beam is irradiated to melt the powder, and a thickening layers is thus formed. The thickening layer of a copper-type alloy is subjected to the machining process to form a ring groove for attaching the top ring,

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patent: 4562327 (1985-12-01), Mielke
patent: 5505171 (1996-04-01), Gazzard
patent: 5515770 (1996-05-01), Clark et al.

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