Title:
ARC WELDING CONTROL METHOD
Document Type and Number:
Japanese Patent JP2016073996
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To improve stability of a welding state in welding for periodically repeating normal travel and reverse travel of a welding wire.SOLUTION: In an arc welding control method for performing welding by performing normal and reverse feeding control for alternately switching feeding speed Fw of a welding wire to a normal feeding period and a reverse feeding period to generate a short circuit period and an arc period, when a period from a point of time t3 in which the feeding speed Fw changes into the normal feeding period to a first reference point of time t41 in the reverse feeding period is the arc period, the feeding speed Fw is switched to normal feeding, and when the feeding speed Fw changes into the short circuit period (time t5), the normal and reverse feeding control is restarted from the reverse feeding period. Thus, since short circuit is forcibly generated before the arc period becomes abnormally long and a welding state becomes unstable, stability of the welding state can be improved.SELECTED DRAWING: Figure 2
Inventors:
IDE AKIHIRO
Application Number:
JP2014205786A
Publication Date:
May 12, 2016
Filing Date:
October 06, 2014
Export Citation:
Assignee:
DAIHEN CORP
International Classes:
B23K9/073; B23K9/12
Domestic Patent References:
| JP4807474B2 | 2011-11-02 | |||
| JP2012006020A | 2012-01-12 | |||
| JP2004298924A | 2004-10-28 | |||
| JPH06170538A | 1994-06-21 |
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