Welding apparatus and plasma welding method
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United States of America Patent
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Dec 8, 2015
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Dec 8, 2014
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The object of the present invention is to provide a welding apparatus and a plasma welding method capable of obtaining deep penetration while suppressing initial investment in a welding apparatus. The welding apparatus of the present invention includes a torch for plasma welding and a power supply device, wherein the power supply device is composed of a first welding power supply used for a TIG welding apparatus, in which a positive terminal is electrically connected with the insert chip and a negative terminal is electrically connected with the electrode, and a second welding power supply used for a TIG welding apparatus, in which a positive terminal is electrically connected with a material to be welded and a negative terminal is electrically connected with the electrode.
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