Weld quality monitor

Details Weld quality monitor Weld quality monitor

1981-05-29

1983-02-22

Shaw, C. C.

Electric heating

Metal heating

By arc

21913021, B23K 910

Patent

active

043750265

ABSTRACT:
Weld arc voltage, weld arc current and weld arc travel speed are monitored n a real-time basis during the welding process. Each monitored quantity or parameter is compared directly with a reference value indicative of a high quality weld, and an alarm is activated when a preselected variation in the measured and the reference quantities occurs. The monitored quantities are also used to calculate additional welding parameters, including heat input, weld bead area and cooling rate. These parameters are also compared to ideal reference values in order to control weld quality.
The sensors used for measuring the welding parameters are selected so as to provide minimal interference with the welding process. For example, Hall effect transductors are used for current measurements, while a unique opto-electronic noncontacting sensor is used for measuring the weld speed.

REFERENCES:
patent: 3236997 (1966-02-01), Johnson et al.
patent: 3262006 (1966-07-01), Sciaky et al.
patent: 3370151 (1968-02-01), Normando
patent: 3509314 (1970-04-01), Freytag
patent: 4103141 (1978-07-01), Wristen

Affiliated with

Also associated with

Rating

Weld quality monitor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Weld quality monitor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Weld quality monitor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1374660