Method of making iron-base articles having a remelted layer

Details Method of making iron-base articles having a remelted layer Method of making iron-base articles having a remelted layer

1988-01-15

1988-09-20

Andrews, Melvyn J.

Metal treatment

Process of modifying or maintaining internal physical...

Chemical-heat removing or burning of metal

148902, 148903, 21912136, C21D 930

Patent

active

047723408

ABSTRACT:
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.

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