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Welding

Metal welding fabrication at American Metalcraft industries includes the use of TIG and MIG welding techniques.

TIG - Gas Tungsten Arc Welding (GTAW) is frequently referred to as TIG welding. TIG welding has become a popular choice of welding processes when high quality, precision welding is required. In TIG welding an arc is formed between a non-consumable tungsten electrode and the metal being welded. Gas is fed through the torch to shield the electrode and molten weld pool. If filler wire is used, it is added to the weld pool separately. GTAW is most commonly used to weld thin sections of stainless steel and light
metals such as aluminum, magnesium, and copper alloys.

TIG Welding Advantages

• Superior quality welds
• Welds can be made with or without filler metal
• Precise control of welding variables (heat)
• Free of spatter
• Low distortions 

TIG Limitations

• Requires greater welder dexterity than MIG or stick welding
• Lower deposition rates
• More costly for welding thick sections

MIG - Gas Metal Arc Welding (GMAW) is frequently referred to as MIG welding. MIG welding is a common high deposition rate welding process for aluminum and steel parts. Wire is continuously fed from a spool from the welding head to the workpiece with gas shielding. MIG welding is thus referred to as a semiautomatic welding process.

MIG welding advantages

• All position capability
• High deposition rates
• Less operator skill required
• Long uninterrupted welds
• Minimum post-weld cleaning requirements

MIG welding disadvantages

• Undercutting
• Possible melt-through
• Incomplete fusion
• Incomplete penetration
• Porosity
• Possible weld area cracks
• Possible heat affected zone

American Metalcraft Industries will use our expertise to minimize the above issues.
Contact American Metalcraft for your metal welding fabrication jobs.

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