Stock material or miscellaneous articles – Structurally defined web or sheet – Continuous and nonuniform or irregular surface on layer or...
Patent
1990-11-16
1991-08-13
Seidleck, James J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Continuous and nonuniform or irregular surface on layer or...
428179, 428426, 428167, 428409, 428410, 51326, B32B 704
Patent
active
050395688
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: 4544607 (1985-10-01), Kaneno et al.
patent: 4810585 (1989-03-01), Oda et al.
Takeda Hiroshi
Taniguchi Masato
Yagi Juzo
NGK Spark Plug Co. Ltd.
Seidleck James J.
Weddington J.
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