Electric heating – Metal heating – By arc
Patent
1987-06-04
1988-07-19
Shaw, Clifford C.
Electric heating
Metal heating
By arc
21913031, B23K 909
Patent
active
047587075
ABSTRACT:
A pulsed arc welding system includes a current pulse generating circuit and a background current generating circuit. The lowest arc voltage across the arc load is detected during a predetermined time period immediately preceeding the onset of each current pulse. The pulse repetition rate is controlled on the basis of this detected voltage so that the detected arc voltage becomes constant.
REFERENCES:
patent: 4409465 (1983-10-01), Yamamoto et al.
patent: 4438317 (1984-03-01), Ueguri et al.
patent: 4459460 (1984-07-01), Ogilvie et al.
patent: 4620082 (1986-10-01), Graville et al.
Brougham William K.
Cheesman Gary L.
Leske David M.
Ogilvie Graeme J.
Commonwealth Scientific and Industrial Research Organization
Shaw Clifford C.
Welding Industries of Australia Pty. Ltd.
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