Method of making high-strength brazed joints

Details Method of making high-strength brazed joints Method of making high-strength brazed joints

1991-09-20

1992-11-03

Heinrich, Samuel M.

Metal fusion bonding

Process

Bonding nonmetals with metallic filler

228124, 228165, 228203, B23K 120

Patent

active

051600900

ABSTRACT:
The invention relates to a method of making high-strength brazed joints in metal/ceramic and ceramic/ceramic composite materials. The brazing surface of the ceramic part is structured prior to brazing by introducing bores having an average diameter in the range of 50 .mu.m-500 .mu.m and a depth in the range of 100 .mu.m-2 mm. Preferably, the structuring is effected by laser working. Brazing is subsequently carried out in a conventional manner. The resulting joint displays increased strength characteristics and resistance to thermal stresses over joints produced by conventional methods.

REFERENCES:
patent: 3710170 (1973-01-01), Friedel
patent: 4111572 (1978-09-01), Noone et al.
patent: 4394953 (1983-07-01), Sonnweber et al.
patent: 4409278 (1983-10-01), Jochum
patent: 4610934 (1986-09-01), Boecker et al.
patent: 4793543 (1988-12-01), Gainey et al.
patent: 4844323 (1989-07-01), Kondo et al.
patent: 5058799 (1991-10-01), Zsamboky
English language abstracts for German references 1 652 840 and 2 759 148.

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