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MIG Welding

The phrase "MIG welding" is frequently used when referring to the process of Gas Metal Arc Welding. A common signature of MIG welding is its high deposition rate due to consistent wire feed and heat determined by the welder. A few benefits of MIG welding are minimal post weld clean up, a higher dependence on equipment versus operator, longer and more consistent welds, and most noted - it is virtually any position capable (MIG welding can be done and almost any position).

TIG Welding

TIG welding is technically referred to as Gas Tungsten Arc Welding. This type of welding is commonly known for its high quality welds. TIG welding is almost always used when a welding process mandates precision, high quality, and accurate welding. TIG welding is very common when intricate welding is needed for delicate processes such as die and mold repair. The distinct advantages of TIG welding are superior quality welds, minimal if any required filler material, no spatter, and complete control of welding variables.

Spot Welding

Spot welding is the process by which two metal surfaces (held together by electrodes under pressure) are joined by heat generated from the resistance of an electrical current. This process is generally reserved for materials with a thickness of only .5 to 3 mm. Spot welding get its name because the weld is limited to the spot where the electrodes contact the material; hence, welding the material in the "spot" where the electrodes come in contact with the material being welded. Spot welding is relatively fast process that provides a very strong weld at the point of contact by melting the two joining materials; furthermore, it does this without causing excessive heat build up outside the immediate weld area.


"Riveting" is no more complex than joining two pieces of like or un-like materials with a permanent faster. Rivets are generally inserted it into a drilled or (more commonly in metal stamping processes) punched hole with the head up. The bottom of the rivet (commonly referred to as the buck-tail) is upset (i.e.: deformed) and thereby creates a permanent fastener. Riveted unions are generally a better application where shear loads (opposed to tension loads) are expected.

Mechanical Assembly

Mechanical assembly is defined as a contract service between your company and Apt Metal Fabricators, Inc. to assemble, manipulate, or otherwise alter mechanical parts, components, or mechanical systems. Mechanical assembly can range from simple two-part assemblies to complex multi-part assemblies. APT's mechanical assembly processes includes but is not limited to materials such as stainless steel, aluminum, brass, steel, bronze, and many other types of materials. Our mechanical assembly process allows us to provide you a genuine turnkey service.