Ultrasonic welding control

Details Ultrasonic welding control Ultrasonic welding control

1982-12-08

1988-05-24

Ramsey, Kenneth J.

Metal fusion bonding

Process

With condition responsive, program, or timing control

228 11, 228110, B23K 2010

Patent

active

047460512

ABSTRACT:
A method and apparatus for controlling ultrasonic welding and determining whether the weld is of acceptable quality. Power input to ultrasonic welding apparatus is detected and converted to a signal indicative of energy input. When power input exceeds a power threshold level a timer begins to measure elapsed time and energy input begins to be monitored. Welding power is terminated when both elapsed time and energy level have exceeded predetermined values. If either elapsed time or energy level exceeded reject limit values when the weld was made the weld is rejected as being of unacceptable quality.

REFERENCES:
patent: 3191441 (1965-06-01), Erickson
patent: 3532853 (1970-10-01), McKinney et al.
patent: 3573781 (1971-04-01), Shoh
patent: 3784079 (1974-01-01), Spanjer
patent: 3848792 (1974-11-01), Mims
patent: 4047657 (1977-09-01), Mims

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