Progressive ultrasonic welding system

Details Progressive ultrasonic welding system Progressive ultrasonic welding system

1983-04-12

1985-01-29

Ramsey, Kenneth J.

Metal fusion bonding

Process

With condition responsive, program, or timing control

228 1R, 228 1B, 228111, B23K 2010

Patent

active

044960956

ABSTRACT:
A method of progressively ultrasonically welding together workpieces is provided wherein the spot welds effected are initiated as small points and then progressively grow to full size. The method employs an ultrasonic welding apparatus of the type having a welding tip and a complimentary anvil between which the workpieces to be welded may be inserted. The workpieces are first clamped together and the workpieces "presqueezed" to disperse any adhesives which may be used between the workpieces. Initial pressure and energy levels are then introduced to "scrub" the workpieces. Pressure and energy are then synchronously ramped in phase to maximum levels to effect a weld between the workpieces. The welding operation is controlled by control means which permit automatic synchronization of the operation.

REFERENCES:
patent: 3533155 (1970-10-01), Coucoulas
patent: 3548921 (1970-11-01), Christensen
patent: 3610506 (1971-10-01), Robinson
patent: 3623214 (1971-11-01), Sciaky et al.
patent: 3822465 (1974-07-01), Frankort et al.
patent: 4047657 (1977-09-01), Mims
patent: 4067490 (1978-01-01), Jones et al.

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