Metal fusion bonding – Process – Autogenous fusion
Patent
1975-01-13
1976-06-15
Smith, Al Lawrence
Metal fusion bonding
Process
Autogenous fusion
228228, 228243, B23K 1300, B23K 1900
Patent
active
039631630
ABSTRACT:
A method for bonding bodies made of metallic material is described herein, which method is characterized in that one ends of metallic bodies are butted against each other with a light mechanical load applied to the butted portion, and under such a loaded condition the proximity of said butted portion is subjected to a temperature cycle passing over a transformation point of said materials, whereby said metallic bodies may be pressure bonded while super-plastic phenomena are generated in said butted portion of said metallic bodies. In one preferred embodiment, the above-referred loaded condition can be realized without specifically and purposely applying a mechanical force to the bodies to be bonded, but instead one ends of the materials are butted against each other with the main portion thereof maintained in a substantially restrained state, so that the necessary mechanical load to the butted portion may be generated as compression stress based on thermal stress when said temperature cycle is applied to said bodies to be bonded.
REFERENCES:
patent: 3435182 (1969-03-01), Rietsch
patent: 3535908 (1970-10-01), Hymes et al.
patent: 3537171 (1970-11-01), Wilson et al.
patent: 3591916 (1971-07-01), Arthur
patent: 3713207 (1973-01-01), Ruckle et al.
Mitsubishi Jukogyo Kabushiki Kaisha
Ramsey K. J.
Smith Al Lawrence
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