Method of joining zinc coated aluminum members and uncoated alum

Details Method of joining zinc coated aluminum members and uncoated alum Method of joining zinc coated aluminum members and uncoated alum

1986-06-27

1988-07-05

Ramsey, Kenneth J.

Metal fusion bonding

Process

Plural joints

228262, B23K 106

Patent

active

047549130

ABSTRACT:
Fluxless joining of aluminum members, one of which is provided wih a coating of zinc solder, includes preheating the assembled members to a temperature above the melting point of the solder coating and applying a multistep vibration to the assembled members at elevated temperature. A heat exchanging section has a core of spaced hollow aluminum shapes interconnected by thin aluminum fins extending through the zinc coating layer and having direct contact with the aluminum shapes.

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patent: 4615952 (1986-10-01), Knoll
Welding Journal, Jan. 1976, "Fluxless Soldering of Aluminum Heat Exchangers", by W. B. Jenkins, pp. 28-35.

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