Pre-resistance-welding resistance check

Details Pre-resistance-welding resistance check Pre-resistance-welding resistance check

1989-06-08

1991-06-04

Shaw, Clifford C.

Electric heating

Metal heating

For bonding with pressure

219110, B23K 1125

Patent

active

050216252

ABSTRACT:
A preweld resistance check for resistance welding machines uses an open circuited measurement to determine the welding machine resistance, a closed circuit measurement to determine the parallel resistance of a workpiece set and the machine, and a calculation to determine the resistance of the workpiece set. Any variation in workpiece set or machine resistance is an indication that the weld may be different from a control weld.

REFERENCES:
patent: 3873830 (1975-03-01), Forster
patent: 4639569 (1987-01-01), Dufrenne
patent: 4963830 (1990-10-01), Roth et al.
U. Mallya, "Effects of Contact Resistance in Resistance Welding of Aluminum", Welding Journal, Feb. 1984; pp. 41-44.
Resistance Welding Data Book, P. R. Mallory & Company Publisher, Fourth Edition; pp. 9-13, pp. 85, 87, 100-102 and 104-106.
Welding For Engineers, Udin, Funk, Wulff, John Wiley Publisher, New York, 1954; Chap. 4, pp. 44-67.
Model 510A, 4 1/2 Digit Micro-Ohmmeter, Cambridge Technology, Inc. Cambridge, MA.

Affiliated with

Also associated with

Rating

Pre-resistance-welding resistance check does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pre-resistance-welding resistance check, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pre-resistance-welding resistance check will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1028143