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[MW:30964] GMAW process

By Materials & Welding
Hi Gents,
Could you please help me to identified limitations/disadvantages of GMAW (MIG-MAG) process  for fabrication (i.e risk of lack of fusion / open arc /  / 


Cloud you please explain what is cooling of torch , how it should be performed ; is adding cooling mechanism to torch are essential  variable ? how it should be followed?


Best Regards,
Ilkin Hasanov.

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