METHOD AND APPARATUS FOR CONTROLLING THE WELDING CAPACITY DURING ELECTRICAL RESISTANCE WELDING
A method of, and apparatus for, controlling the welding energy during electrical resistance welding of workpieces, by means of an electrode roll-resistance seam welding machine. The effective value of the welding current is controlled in response to an electrical control signal, at least a component...
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Main Author | |
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Format | Patent |
Language | English French |
Published |
08.06.1982
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Subjects | |
Online Access | Get full text |
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Summary: | A method of, and apparatus for, controlling the welding energy during electrical resistance welding of workpieces, by means of an electrode roll-resistance seam welding machine. The effective value of the welding current is controlled in response to an electrical control signal, at least a component of which is a welding current-correction signal substantially analogous to the welding speed in order to provide a substantially constant welding energy supplied to the workpieces at each section along the formed welding seem at any welding speed. Said welding current-correction signal is produced by means of a programmed control device which simultaneously delivers an electrical rotational speed-reference value signal for controlling and regulating the welding speed. |
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Bibliography: | Application Number: CA19770290557 |