Electric heating – Metal heating – By arc
Patent
1990-09-04
1992-09-15
Shaw, Clifford C.
Electric heating
Metal heating
By arc
2191301, B23K 909
Patent
active
051480018
ABSTRACT:
There is provided an improvement in a short circuiting arc welding system comprising a work station with a consumable electrode and workpiece, a D.C. power supply with a positive and a negative terminal, high frequency current control means for applying a welding circuit with a given time-based profile across the work station while the electrode is short circuited and while the electrode is spaced from the workpiece, a welding current circuit means including a first means for creating a first inductive reactance in series with the current control means and work station whereby the welding current follows the time-based profile in accordance with the first inductive reactance. The improvement comprises a background current circuit means between the power supply and the work station and in parallel with the current control means and first means for applying continuously a background current across the work station. This background current circuit means includes a second means for creating a second inductive reactance substantially greater than the first inductive reactance and a resistor means for controlling the background current flowing continuously from the power supply to the work station through the background current circuit means.
REFERENCES:
patent: 3423564 (1969-01-01), Sevenco
patent: 3459920 (1969-08-01), Sevenco
patent: 3627975 (1971-12-01), Goto
patent: 3792225 (1974-02-01), Needham
patent: 3809853 (1974-05-01), Manz
patent: 4020320 (1977-04-01), Pijls
patent: 4544826 (1985-10-01), Nakanishi
patent: 4546234 (1985-10-01), Ogasawara
patent: 4717807 (1988-01-01), Parks et al.
patent: 4794232 (1988-12-01), Kimbrough
patent: 4866247 (1989-09-01), Parks et al.
A Power Source for Advanced Welding Systems, by P. Budai et al., First International Conference on Advanced Welding Systems, Nov. 1985.
Control of Short Circuiting in MIG Welding, P. Boughton et al., Welding Research International, 1974 ED.
Patent Abstracts of Japan, vol. 10, No. 83 (M-466), [2140], Apr. 2, 1986.
Patent Abstracts of Japan, vol. 9, No. 202 (M-405), [1925], Aug. 20, 1985.
Patent Abstracts of Japan, vol. 4, No. 161 (M-40) [643], Nov. 11, 1980.
Study of Welding Arc Control in China, 231 Welding Journal, 65, (1986), Mar., No. 3, Miami, Fla. U.S.A., by J. L. Pan.
European Search Report, Appln. Ser. No. 87302155.4, Apr. 28, 1988.
A Power Source for Gas Shielded Arc Welding with New Current Wave Forms, by T. Ogasawara et al., First International Conference on Advanced Welding Systems, Nov. 1985.
Shaw Clifford C.
The Lincoln Electric Company
LandOfFree
System and method of short circuiting arc welding does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method of short circuiting arc welding, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method of short circuiting arc welding will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-737860