Method of bonding metal plates, apparatus therefor and hot...

Metal fusion bonding – Process – With shaping

Reexamination Certificate

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Details

C228S144000, C228S149000, C228S005700

Reexamination Certificate

active

06955287

ABSTRACT:
An upper shearing blade equipped with a protrusion of a triangle-columnar shape and a lower shearing blade equipped with a protrusion of the same shape are applied onto the overlapped portion of metal plates to be bonded, and then pressed into the metal plates in an oblique direction inclined with respect to the thickness direction by a stroke in such a range that the metal plates are not completely cut off. The operating loci of the upper, shearing blade and the lower shearing blade are overlapped each other so that one falls inside the other, and the sheared surfaces of the metal plates are formed into a bonded portion by plastic flow deformation. Therein, since a compressive force is applied onto the portions to be bonded, the portion being defined by the amount of overlap, and the portions are compressed to form a compressed portion after completion of bonding, the bonding strength enhances. Besides, since the protrusions on the shearing blades generate a pressing force pressing the sheared surfaces onto each other, by an effect of their inclined surfaces, a compression force applied onto the bonded portion further increases.

REFERENCES:
patent: 5216962 (1993-06-01), Parigi et al.
patent: 5234154 (1993-08-01), Kajiwara et al.
patent: 6213381 (2001-04-01), Funamoto et al.
patent: 0770434 (1997-05-01), None
patent: 06039405 (1994-02-01), None
patent: 06234005 (1994-08-01), None
patent: 09174117 (1997-07-01), None
EPO Search Report.

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