Apparatus and method for weld bonding

Details Apparatus and method for weld bonding Apparatus and method for weld bonding

1976-06-16

1978-02-07

Truhe, J. V.

Electric heating

Metal heating

For bonding with pressure

219 911, B23K 1110

Patent

active

040728439

ABSTRACT:
Improved apparatus for weld bonding together a pair of conductors separated by a layer of thermo-plastic insulation material. The apparatus comprises a pair of welding electrodes for urging the pair of conductors together at a first level of electrode squeeze pressure while a first low level of current flows through the electrodes and conductors until the thermo-insulation material between the conductors beneath the electrodes is penetrated, electronic circuits for sensing this insulation penetration and initiating after a pre-selected time delay, a second higher level of welding current and electronic controls for increasing the electrode squeeze pressure from the first level to a second higher or forging level for at least a portion of the flow of the second higher welding level of current. A method for forming the weld bond is included.

REFERENCES:
patent: 1933936 (1933-11-01), Schnetzer
patent: 2996603 (1961-08-01), Stolz et al.
patent: 3497660 (1970-02-01), Henry-Biabaud
patent: 3538293 (1970-11-01), Procacino
patent: 3860782 (1975-06-01), Hamby

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