Method and system for hot wire welding

Details Method and system for hot wire welding Method and system for hot wire welding

B - Operations, Transporting

23

K

B23K 9/00 (2006.01) B23K 9/095 (2006.01) B23K 9/10 (2006.01) B23K 9/167 (2006.01) B23K 9/235 (2006.01)

Patent

CA 2345836

A hot wire welding method and system rely upon a welding torch with a non-melting electrode, a melting metal filler wire that is fed into a weld puddle created by welding arc, a microprocessor controller for controlling (i) current of the main welding arc, (ii) filler wire feed speed, and (iii) hot wire current for heating the filler wire. The method and system also rely upon a main welding power supply for supplying the main welding arc and a secondary DC supply for supplying the hot wire current. The hot wire current is automatically controlled by the microprocessor to supply the correct amount of current to the filler wire in response to changes in wire feed speed.

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