Honda Giken Kogyo Kabushiki Kaisha

Tetsuo Iwahashi

Toshihiko Matsubara

Norio Tajima

Kunio Kishino

Masatoshi Kawaguchi

Hiroshi Yoshinaga

Toshihiko Saga

Hisao Hirono

Fusao Nakajima

Shohei Hayakawa

Akitaka Inou

Masayoshi Higashi

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.

Method of making iron-base articles having a remelted layer

Growing community of inventors

Saitama, Japan

Tetsuo Iwahashi