Method of induction weld forming with shear displacement step

Details Method of induction weld forming with shear displacement step Method of induction weld forming with shear displacement step

2004-06-07

2008-03-25

Leung, Philip H. (Department: 3742)

Electric heating

Inductive heating

Metal working

C219S603000, C219S659000, C219S061200, C219S101000, C228S115000

Reexamination Certificate

active

07348523

ABSTRACT:
A shear-assisted solid state welding method for joining of metal parts, involves a first step of heating opposing surfaces in a non-passivating environment to a temperature in the hot working temperature range of the metal. A second step involves bringing the opposing surfaces into contact while still in the hot working temperature range, and applying compressive stress sufficient to substantially prevent sliding in response to shear displacement, causing plastic flow in the hot layers. A third step involves imposing relative shear displacement of the metal work pieces without disengaging the opposing surfaces. The shear displacement induces plastic shear strain within the hot layers to progressively induce bonding.

REFERENCES:
patent: 4669650 (1987-06-01), Moe
patent: 5403986 (1995-04-01), Goleby
patent: 5571437 (1996-11-01), Rudd
patent: 2005/0092715 (2005-05-01), Alford et al.

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