ARC WELDING APPRATUS, ARC WELDING SYSTEM AND ARC WELDING METHOD

The present invention provides an arc welding apparatus which can control heat input by restraining consumption of a welding material. The arc welding apparatus (A1) comprises: a welding condition acquisition unit (U1) which acquires welding conditions; a heat input calculation unit (U3) which calcu...

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Bibliographic Details
Main Authors SAKAMOTO TAICHI, MURAKAMI MASAFUMI
Format Patent
LanguageEnglish
Korean
Published 17.12.2014
Subjects
CLADDING OR PLATING BY SOLDERING OR WELDING
CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
PERFORMING OPERATIONS
SOLDERING OR UNSOLDERING
TRANSPORTING
WELDING
WORKING BY LASER BEAM
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Summary:The present invention provides an arc welding apparatus which can control heat input by restraining consumption of a welding material. The arc welding apparatus (A1) comprises: a welding condition acquisition unit (U1) which acquires welding conditions; a heat input calculation unit (U3) which calculates necessary heat input according to the welding conditions; a frequency setting unit (U4) which sets a frequency of a short-circuit state and an arc state to be lowered as the necessary heat input increases; and a feeding device (41) which repeatedly performs forward and backward movements of a welding wire (44) with regard to a work (W) with the frequency.
Bibliography:Application Number: KR20140067357