TFS: Cast Aluminum Weld Repair Can you weld cast aluminum with a MIG welder? TIG welding cast aluminum should always be done with pureargon gas, not an argon/CO2 mix, as is common with MIG welding. For welds needing deeper penetration, an argon/helium mix is recommended. ...
Stumbling arc:The weld parameters being used should produce a good arc but if you see a stumbling or stuttering arc this may be a sign of problematic voltage drop. If you think you may have voltage drop problems, one of the first things to look for is an arc that is...