Title:
TWIN WELDING METHOD FOR FILLET JOINT BY ROBOT
Document Type and Number:
Japanese Patent JP2701674
Kind Code:
B2
Abstract:
PURPOSE: To obtain the satisfactory welding quality by carrying out specified starting end boxing welding operation when torches are stopped and arcs are generated after the lapse of specified time.
CONSTITUTION: A lower plate 1 and a vertical plate 2 are twin-welded by using robots 16 simultaneously with forming of fillet weld beads 3. In welding a joint starting end, since operations of two robots 16 are synchronized, a torch switch to a welding power source is turned on. Afterward, the welding torches 18 are stopped at the position by the specified time more than the time required for generating the arcs in normal welding. After the lapse of specified time, generation of the arcs is confirmed and when the arcs are generated, specified starting end boxing welding operation is carried out. Consequently, bead uneveness and the occurrence of defect can be prevented.
More Like This:
Inventors:
Murayama Masatomo
Yuji Sugitani
Yuji Sugitani
Application Number:
JP24748892A
Publication Date:
January 21, 1998
Filing Date:
September 17, 1992
Export Citation:
Assignee:
Nippon Steel Tube Co., Ltd.
International Classes:
B23K9/00; B23K9/02; B23K9/067; B23K9/12; B23K9/127; (IPC1-7): B23K9/127; B23K9/00; B23K9/02; B23K9/12
Domestic Patent References:
| JP592268A |
Attorney, Agent or Firm:
Muneharu Sasaki (3 outside)