Welding arc initiator
Patent
·
OSTI ID:7073303
An improved inert gas shielded tungsten arc welder is disclosed of the type wherein a tungsten electrode is shielded within a flowing inert gas, and, an arc, following ignition, burns between the energized tungsten electrode and a workpiece. The improvement comprises in combination with the tungsten electrode, a starting laser focused upon the tungsten electrode which to ignite the electrode heats a spot on the energized electrode sufficient for formation of a thermionic arc. Interference problems associated with high frequency starters are thus overcome. 3 figs.
- DOE Contract Number:
- AC06-76RL01830
- Assignee:
- Battelle Memorial Inst., Columbus, OH (United States)
- Patent Number(s):
- US 4829153; A
- Application Number:
- PPN: US 7-068698
- OSTI ID:
- 7073303
- Country of Publication:
- United States
- Language:
- English
Similar Records
Welding arc initiator
Initiation of GTAW ARCS by high-voltage impulses
IMPROVEMENTS IN OR RELATING TO WELDING
Patent
·
Sat Dec 31 23:00:00 EST 1988
·
OSTI ID:866957
Initiation of GTAW ARCS by high-voltage impulses
Technical Report
·
Sun Aug 01 00:00:00 EDT 1982
·
OSTI ID:5040330
IMPROVEMENTS IN OR RELATING TO WELDING
Patent
·
Tue Aug 01 00:00:00 EDT 1961
·
OSTI ID:4843500