Title:
ＴＩＧ溶接装置およびその制御方法
Document Type and Number:
Japanese Patent JP6674807
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a touch start system TIG welder and a control method thereof capable of highly accurate TIG welding even to a small-sized welding object.SOLUTION: An electrode 1 is controlled for descent in a state of not impressing welding voltage between the tip of the electrode 1 and a work 2, and when detecting contact between the tip of the electrode 1 and the work 2 by a touch start detection circuit 30, the electrode 1 is controlled for ascent in a state of making a separation detection current flow from a touch start TIG welding power source 10 between the tip of the electrode 1 and the work 2, and when voltage between the tip of the electrode 1 and the work 2 becomes separation detection reference voltage, it is detected that the tip of the electrode 1 separates from the work 2, after detecting that the tip of the electrode 1 separates from the work 2, the electrode 1 is relatively positioned, and a separation detection current from the touch start TIG welding power source 10 is switched to a regular electric conduction current in relative positioning after completing the relative positioning or before completing the relative positioning.SELECTED DRAWING: Figure 1
Inventors:
Hiroyuki Takasaki
Application Number:
JP2016055899A
Publication Date:
April 01, 2020
Filing Date:
March 18, 2016
Export Citation:
Assignee:
Nippon Avionics Co., Ltd.
International Classes:
B23K9/067; B23K9/00; B23K9/167; H02M9/00
Domestic Patent References:
| JP59050970A | ||||
| JP2000176641A | ||||
| JP9070661A |
Attorney, Agent or Firm:
Shigenori Wada
Hidehiko Komatsu
Hidehiko Komatsu