Method and system for hot wire welding
OwnerTony Lee Arndt, Roger Carl Dik +1inventors
InventorsTony Lee Arndt, Roger Carl Dik, Pellervo Johannes Kaskinen
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Abstract
A hot wire welding method and system includes a welding torch with a non-melting electrode, a melting metal filler wire fed into the weld puddle created by the welding arc, a microprocessor controller for controlling the current of the main welding arc, filler wire feed speed, and hot wire current control for the heating of the hot wire. The method and system also includes 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 hot wire current to the filler wire with changes in wire feed speed.
Claims15
A system for hot wire welding comprising:
- a welding torch;
- means for forming a welding arc at said welding torch to provide a weld puddle;
- means for feeding a hot metal filler wire into said weld puddle at a prescribed speed;
- and
- means for controlling a current flow for heating said filler wire in correlated response to change in said prescribed speed of said hot wire.
A system for hot wire welding comprising:
- a welding torch;
- means for forming a welding arc at said welding torch to provide a weld puddle;
- means for feeding a hot metal filler wire into said weld puddle at a prescribed speed;
- and
- means for controlling (i) a current flow to said welding arc forming means, (ii) said filler wire feeding means to adjust said prescribed speed, and (iii) a current flow for heating said filler wire in response to said prescribed speed of said hot wire.
A method of hot wire welding comprising the steps of:
- forming a welding arc at a welding torch to provide a weld puddle;
- feeding a hot metal filler wire into said weld puddle at a prescribed speed;
- and
- controlling a current flow for heating said filler wire in a correlated response to change in said prescribed speed of said hot wire.
A method of hot wire welding comprising the steps of:
- forming a welding arc at a welding torch to provide a weld puddle;
- feeding a hot metal filler wire into said weld puddle at a prescribed speed;
- and
- controlling (i) a current flow to said welding arc, (ii) said filler wire to adjust said prescribed speed, and (iii) a current flow for heating said filler wire in response to said prescribed speed of said hot wire.
Dependencies are inferred from the claim text.