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GMAW WELDING

Metal Inert Gas (MIG) and Gas Metal Arc Welding (GMAW) Capabilities. 
Fusion Welding

Providing Nadcap accredited fusion welding services, specializing in GMAW (Gas Metal Arc Welding).

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The MIG welding process is different than the TIG welding and has different application in material joining. GMWA main character is feeding the electrode/filler material continuously through the welding gun. In this is case the electrode is melted and deposited into the base material to create the weld joint. The shielding gas is created from the welding gun as well to help protecting the weld from contamination. GMAW uses inert gas as well by using argon and helium and some would use carbon dioxide as it depends on the type of application and the material you are using. The electrode is consumable and mainly comes in spools. According to the American Welding Society, the electrode is identified by letters ER and numbers after that present a unique characteristic. Each character is an identification for the wire, and it is strength.

There are different types of the metal transfer and they all use different voltages and current to achieve best weld results. GMAW has four-metal transfer which are globular transfer, pulsed arc, short circuiting, and spray transfer. Each method is used based on the material and application used.

The wire and the base material have to be clean to produce a quality weld. Any contamination will affect the weld as the GMAW tends to lose more shielding gas than the GTAW. Lack of penetration is another challenge when using the GMAW process however with an experience welder, correct set up and right method of depositing, penetration can be achieved. We often consider GMAW as the more heavy-duty process as it is designated for structural welding application. Our team well qualified and experienced to perform GTAW and GMAW to produce quality, clean and successful weld.

mig welding diagram
NADCAP accredited resistance welding
NADCAP Accredited Welding
ITAR Certification
American Welding Society
AS 9100D ISO9001 Certified
manual gas tungsten arc welding per mil-std-2219 stainless steel class a

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