Hardened metal product produced by shot peening with shot having

Details Hardened metal product produced by shot peening with shot having Hardened metal product produced by shot peening with shot having

1998-11-18

2000-11-28

Yee, Deborah

Metal treatment

Stock

Carburized or nitrided

148317, 148318, 148319, 148328, 148405, C21D 106

Patent

active

061530239

ABSTRACT:
A method for shot peening a hard metal product that has a hardened surface. The method includes projecting shot on the hardened surface of the hard metal product. The ratio of the Vickers hardness of the shot to that of the hardened surface is 0.8-1.6, and the diameter of the shot is 30-250 .mu..

REFERENCES:
patent: 4379745 (1983-04-01), Polizzotti et al.
patent: 5019182 (1991-05-01), Arimi
patent: 5477976 (1995-12-01), Suzuki et al.
patent: 5595613 (1997-01-01), Hatano et al.

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