×

Pulsed arc welding apparatus

  • US 5,281,791 A
  • Filed: 12/27/1990
  • Issued: 01/25/1994
  • Est. Priority Date: 02/28/1989
  • Status: Expired due to Fees
First Claim
Patent Images

1. A pulsed arc welding apparatus comprising:

  • a voltage detector an arc voltage corresponding to a variation of an arc length produced between a welding electrode and workpieces,a current detector for detecting an arc current to be supplied to said welding electrode,an arc length detector for converting said detected arc current value into a reference arc voltage and for outputting an arc length signal, representing a momentary variation in the arc length as a pulsed welding process proceeds, based on comparison operations between said reference arc voltage and said detected arc voltage value, andmeans for performing said pulsed arc welding process based on said arc length signal.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×