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AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsNoriyuki Matsuoka, Yukinori Hirota, Atsuhiro Kawamoto, Junji Fujiwara, Masaru Kowa, Akira Nakagawa
Estimating the term…
In arc welding, determining a current value to be high in an early stage of the arc period is effective in reducing spatters caused by feeble short circuit in the arc period. In that case, to sharply decrease the voltage that has increased with increase in current, an inductance value of a reactor has to be kept small. However, a small inductance value causes a problem—weakness against disturbance. The present invention provides an arc welding control method that performs arc welding while repeating the short-circuit period and the arc period. According to the method, changing an inductance value relating to welding output in the arc period offers stable arc welding with fewer spatters and insusceptibility to disturbance.
An arc welding control method for performing arc welding while repeating a short-circuit period and an arc period, wherein the arc period comprises a first predetermined period, a second predetermined period, a third predetermined period and a fourth predetermined period, the method comprising:
Dependencies are inferred from the claim text.