C - Chemistry – Metallurgy – 21 – D
Patent
C - Chemistry, Metallurgy
21
D
117/73
C21D 5/00 (2006.01) B22D 15/00 (2006.01) B23K 9/04 (2006.01)
Patent
CA 1254082
ABSTRACT OF THE DISCLOSURE An iron-base article such as a camshaft has a remelted layer of high wear resistance on a cam surface, for example. To make such an iron-base article, molten metal is poured into a mold with a chill set therein to cast an iron-base article having a chilled region formed in contact with said chill. Then, metal powder which provides wear resistance upon being mixed is added to at least a portion of said chilled region. A high level of energy is applied to the portion of the chilled region to heat and remelt the same, and the remelted portion is thereafter cooled to form a remelted layer therein.
513388
Hayakawa Shohei
Higashi Masayoshi
Hirono Hisao
Inou Akitaka
Iwahashi Tetsuo
Honda Giken Kogyo Kabushiki Kaisha (also Trading As Honda Motor Ltd .)
Johnson Douglas S. Q.c.
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