Monitoring and feedback controls for a spray welding apparatus
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United States of America Patent
Stats
-
Mar 9, 1982
Grant Date -
N/A
app pub date -
Feb 21, 1980
filing date -
Mar 1, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for spray-arc welding includes a controllable current source, means for feeding a wire-like consumable electrode of additive material to the weld location; and a control unit for automatically adjusting the current source in dependence upon the weld sequence. The control unit includes means for dividing the welding sequence in a controlled manner into intervals of high and low mean power, by intermittently increasing and decreasing the output of the welding current source in relation to the average output corresponding to the set rate of feed of said wire-like electrode and to the selected length of the arc; and means for preventing the commencement of a high-power interval before the momentary output voltage has fallen to a given value.
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