Claims
- 1. A brazed metal article having a plurality of base metal parts, said article having been brazed by a process comprising the steps of:
- (a) interposing a filter metal between at least two of said base metal parts to form an assembly, said filler metal consisting essentially of a rapidly solidified brazing foil having a composition consisting essentially of about 14 to 52 weight percent germanium, 0 to 10 weight percent of at least one element selected from the group consisting of silicon, magnesium, bismuth, strontium, lithium, copper, calcium, zinc and tin, the balance being aluminum and incidental impurities;
- (b) holding the assembly together using a fixture capable of applying pressure up to 6.9 MPa (1 Ksi) thereon;
- (c) heating the assembly to at least above the solidus temperature of the filler metal;
- (d) cooling the assembly; and
- (e) annealing the assembly to improve the joint strength thereof.
Parent Case Info
This application is a continuation of application Ser. No. 692,852, filed Apr. 29, 1991, now U.S. Pat. 5,158,621.
US Referenced Citations (14)
Foreign Referenced Citations (5)
Number |
Date |
Country |
0145933 |
Jun 1985 |
EPX |
0218035 |
Apr 1987 |
EPX |
228196 |
Oct 1985 |
DDX |
61-245993 |
Nov 1986 |
JPX |
766368 |
Jan 1957 |
GBX |
Non-Patent Literature Citations (3)
Entry |
Bendijk et al., "Characterization of Al-Si Alloys rapidly quenched from the melt", J. Mat. Science, 15, (1980), pp. 2803-2810. |
Delhez et al., "Structural inhomogeneities of AlSi alloys rapidly quenched from the melt", J. Mat. Science, 17, (1982), pp. 2887-2894. |
Armstrong et al., "Effect of decreased section thickness on the formation, structure, and properties of a chill-cast aluminium-silicon alloys," The Metal Society, London (1979) pp. 454-459. |
Continuations (1)
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Number |
Date |
Country |
Parent |
692852 |
Apr 1991 |
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