Method for low temperature bimetallic formation of ductile singl

Details Method for low temperature bimetallic formation of ductile singl Method for low temperature bimetallic formation of ductile singl

1995-08-31

1997-07-29

Ramsey, Kenneth J.

Metal fusion bonding

Process

With pretreating other than heating or cooling of work part...

2282353, 228265, B23K 2024, B23K 2004

Patent

active

056514964

ABSTRACT:
A process for forming a single material from two layers of metal materials by heating and pressing the two metals together under pressure where a first metal has a relatively higher temperature of plastics formation state and the second metal has a relatively lower temperature of plastics formation state comprising the steps of cleaning the surface of the first and second metal, then electroplating a thin layer of the second metal onto the surface of the first metal, then heating the first metal and the thin layer of the second metal electroplated thereon to the temperature of plastics formation state in the second metal, and heating the second metal to the temperature of plastics formation state, and mechanically pressing the thin layer of the second metal on the first metal together with the second metal to form a single ductile material having two layers of said first and second metals. In a preferred operating method the first metal is from a group of iron metals and their alloys, which are capable of electroplating the second metal thereon and the second group of metal is from Zinc and Zinc Aluminum, having no more than 15% of Aluminum alloyed therein, and the temperatures of plastics formation state are relatively low temperatures in the ranges of 300 degrees F. (149 degrees C.) to 750 degrees F. (399 degrees C.).

REFERENCES:
patent: 2267665 (1941-12-01), Raydt et al.
patent: 2879587 (1959-03-01), Mushovic et al.

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