Metal treatment – Compositions – Heat treating
Patent
1975-09-25
1977-03-15
Kendall, Ralph S.
Metal treatment
Compositions
Heat treating
148 63, 148 315, 148 165, 308 82, 175374, C23C 908, C23C 900
Patent
active
040122387
ABSTRACT:
Disclosed herein is an improved method of finishing a steel article having a carburized and boronized case. The article is carburized to a selected depth then finished to a smoothness which is smoother than the desired final finish. The article is then boronized, hardened and tempered. Further finishing is unnecessary.
REFERENCES:
patent: 3275389 (1966-09-01), Neilson et al.
patent: 3811961 (1974-05-01), Weinstein et al.
patent: 3824134 (1974-07-01), Chance
patent: 3842921 (1974-10-01), Dill et al.
patent: 3922038 (1975-11-01), Scales
Felsman Robert A.
Hughes Tool Company
Kendall Ralph S.
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