Mechanical part made of ceramics

Details Mechanical part made of ceramics Mechanical part made of ceramics

1990-11-15

1991-10-01

Robinson, Ellis P.

Internal-combustion engines

Poppet valve operating mechanism

Rocker

123 9044, 123 9051, 428141, 428156, 428167, 428179, 428183, 428409, 428410, 428426, F01M 910

Patent

active

050523520

ABSTRACT:
A mechanical part has a contact surface for movement on a mating surface. The contact surface is first rough ground by using a grinding wheel of a grain size, for example, equal to or smaller than #200 and then barrel finished or buffed so as to have such a profile that its roughness spacing ranges from 5 to 100 .mu.m and more than half of its peaks are smoothly rounded.

REFERENCES:
patent: 4983468 (1991-01-01), Oda

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