Low Thermal Input MIG Welding???
Low Thermal Input MIG Welding???
(OP)
Good afternoon Gents,
What a wonderful, invaluable forum this is that we can draw on the knowledge and experience of such a vast audience of forum members.
I am investigating GMAW process equipment that will exert the least amount of thermal input into welding a .750" thk rolled CS flange to a .375" thk SS plate.
I have limited experience with Pulse Arc and was disappointed with the results in that heat input was still to high for my desires.
Although on the expensive end, the Fronius Cold Metal Transfer MIG welding process seems ideal and may be contacting such for a demonstration at our facility.
Would like to query all as to their experience and comments on this or any other MIG welding process that could produce the results I desire.
Thanks in advance
What a wonderful, invaluable forum this is that we can draw on the knowledge and experience of such a vast audience of forum members.
I am investigating GMAW process equipment that will exert the least amount of thermal input into welding a .750" thk rolled CS flange to a .375" thk SS plate.
I have limited experience with Pulse Arc and was disappointed with the results in that heat input was still to high for my desires.
Although on the expensive end, the Fronius Cold Metal Transfer MIG welding process seems ideal and may be contacting such for a demonstration at our facility.
Would like to query all as to their experience and comments on this or any other MIG welding process that could produce the results I desire.
Thanks in advance





RE: Low Thermal Input MIG Welding???
RE: Low Thermal Input MIG Welding???
RE: Low Thermal Input MIG Welding???
We do use pulse arc GTAW on many other projects where thin stainless steel is welded and concern for warpage is involved.
Needing high desposition fillet welds with practically no heat as the tolerances we are dealing with are .004".
Will report back on the CMT process after demonstration.
Thanks again for your input.
Robert
RE: Low Thermal Input MIG Welding???
Based on your comments, I agree that you need to investigate CMT from Fronius.
RE: Low Thermal Input MIG Welding???
I believe the Fronius equipment referenced is similar to Lincoln STT and Miller RMD, which are advanced short-arc machines.
I suggest you qualify a GMAW process (regular spray or pulsed) or even FCAW (more user-friendly) and claim the added penetration. This will permit a smaller fillet size, and is the most effective technique to reducing heat input. This would require a qualification test.
RE: Low Thermal Input MIG Welding???