Automatic arc-welding method

Details Automatic arc-welding method Automatic arc-welding method

B - Operations, Transporting

23

K

327/71

B23K 9/10 (2006.01) B23K 9/073 (2006.01) B23K 9/095 (2006.01) B23K 9/12 (2006.01)

Patent

CA 1303683

AUTOMATIC ARC-WELDING METHOD ABSTRACT OF THE DISCLOSURE An automatic arc-welding method, which comprises: when welding two objects to be welded together by means of a welding wire along a groove formed between the objects to be welded, continuously determining by cal- culation a target welding current, with which a depth of penetration agrees with a target value thereof, on the basis of the root gap, the material of the welding wire and the like; continuously determining by calcula- tion a target feeding rate of the welding wire, at which an extension length of the welding wire agrees with a target value thereof, on the basis of the welding current, the material of the welding wire and the like; continuously determining by calculation a target welding voltage, with which a length of the arc agrees with a target value thereof, on the basis of the welding current, the feeding rate of the welding wire, the material of the welding wire and the like; and automatically controlling the welding current, the feeding rate of the welding wire and the welding voltage on the basis of the respective target values thus determined.

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