Method of processing a workpiece

Details Method of processing a workpiece Method of processing a workpiece

1995-03-23

1997-10-07

Eley, Timothy V.

Abrading

Abrading process

Roll, roller, shaft, ball, or piston abrading

298884, 29557, 29559, 451 55, B24B 100

Patent

active

056741111

ABSTRACT:
A workpiece is processed to manufacture a poppet valve comprising a larger diameter head and a stem. First, the stem is ground to correct bending and warping and to remove black skin formed by a mold releasing agent, and, then the stem of the workpiece is cut, thereby preventing variation of the total length and wear of support rollers.

REFERENCES:
patent: 1938764 (1933-12-01), Haas et al.
patent: 2110931 (1938-03-01), Dyer et al.
patent: 2151528 (1939-03-01), Preston
patent: 4086832 (1978-05-01), Korytko
patent: 4841682 (1989-06-01), Waelti
patent: 5199222 (1993-04-01), Leroux et al.
patent: 5319916 (1994-06-01), Ritt et al.
patent: 5551908 (1996-09-01), Harada

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