Copper alloy welding filler and method of use

Details Copper alloy welding filler and method of use Copper alloy welding filler and method of use

1983-06-08

1984-07-17

Rutledge, L. Dewayne

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

428636, 420492, 148 24, 21914622, 219 85H, 22826318, 22826311, B32B 2710

Patent

active

044606591

ABSTRACT:
A copper alloy welding filler for use in arc welding copper to produce sound welds with good mechanical strength and high electrical conductivity is disclosed. The filler consists essentially of a zirconium-boron copper alloy filler metal wherein the concentration ratio of zirconium to boron is at least about 4 to 1; the minimum concentration of boron is about 300 PPM; and the concentration of zirconium is a maximum of about 6000 PPM. The minimum level of about 300 PPM boron on a weight basis eliminates porosity in the weld; while zirconium below about 6000 PPM is effective to eliminate weld cracking without having a detrimental effect on the electrical conductivity.

REFERENCES:
Zwicker, U., Metall 16 JG Heft 9, Sep. 1962, pp. 864-870.

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