Diffusion bonding of aluminum and aluminum alloys

Details Diffusion bonding of aluminum and aluminum alloys Diffusion bonding of aluminum and aluminum alloys

1989-06-30

1990-08-14

Powell, William A.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156645, 156665, 227196, 227206, B44C 122, C23F 100, C03C 1500, C03C 2506

Patent

active

049484575

ABSTRACT:
The present invention provides a process in which components made of aluminum or an alloy thereof can be diffusion bonded together; the process involves chemically treating the components to remove aluminum oxide on the surface of the components, subjecting them to grit blasting and to a second chemical oxide removal step and finally pressing the components together under heat until they form diffusion bonds. The resulting composite can be superplastically formed to shape.

REFERENCES:
patent: 3817844 (1974-06-01), Kendall
patent: 4361262 (1982-11-01), Israeli
D. Hauser, et al. Fundamentals of Solid State Welding and Their Application to Beryllium, Aluminum, and Stainless Steel; Jul. 15, 1965; Table 1, p. 9; p. 65; pp. 74-75; Table X on p. 80.
S. B. Dunkerton, et al. The Application of Diffusion Bonding and Laser Welding in the Fabrication of Aerospace Structures; p. 2; Concluding Remarks, p. 5.
I. M. Barta, Low Temperature Diffusion Bonding of Aluminum Alloys (Welding Research); Jun. 1964; 1st par., p. 243; 6th and 7th pars. of Conclusion p. 247.

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