MIG & TIG Welding
Over the past 25 years, Pendarvis Manufacturing has been providing an extensive range of welding services for a broad range of industries. Pendarvis Manufacturing excels in MIG welding and TIG welding.
With six MIG and TIG welding stations, Pendarvis Manufacturing has the in-house capability to weld aluminum, carbon steel, stainless steel, cast iron, and bronze to steel. Pendarvis Manufacturing holds the following certifications: AWS D1.1 Structural Steel, AWS D1.2 Aluminum, and AWS D1.6 Stainless Steel. Over the last couple of years Pendarvis Manufacturing has worked with customers to develop project specific Weld Procedure Specifications (WPS) and subsequently certified some of the personnel to those WPS's.
Pendarvis Manufacturing has the experience and the capabilities to handle stock up to 40' long, 12' square, with a minimum thickness of .0030".
Metal inert gas or MIG welding is an automatic or semi-automatic welding method that utilizes a wire electrode along with a shielding gas, sometimes referred to as a consumable arc, which is fed through a welding gun. Several power sources can be used for MIG welding, including direct current (DC) - constant voltage, which is the most common, as well as constant current and alternating current power sources. There are four commonly-recognized techniques of metal transfer in MIG welding – pulsed spray, spray, short-circuiting and globular.
MIG welding was initially implemented in the 1940s, specifically for welding non-ferrous metals such as aluminum. MIG welding soon became used for steel as well, since it permitted a shorter welding time compared to other traditional welding methods. Steel MIG welding became even more commonplace when the use of semi-inert gases (such as carbon dioxide) was implemented. Additional improvements in the MIG welding process through the 1950s and 1960s resulted in MIG welding becoming one of the most popular, heavily used industrial manufacturing processes. Advantages of MIG welding include:
- Adaptable to robotic automation
- Relatively simple to learn
- Versatile
- Relative ease of use
- MIG welds can be completed quickly (speed)
Tungsten inert gas or TIG welding is an arc welding method involving electric arc heat being maintained in between a fixed, non-consumable tungsten electrode and the specific component being welded. The area that is being welded is sheltered from contamination (including atmospheric corruption) by a shielding gas (such as an inert gas); in most cases, a filler material is also used. The power supply used for TIG welding is a constant current type, which is conducted across the arc via a column of metal vapors and highly ionized gas, commonly referred to as plasma.
TIG welding has a variety of applications, including being used to weld metals such as copper, magnesium and aluminum alloys, along with welding thin sections of stainless steel. Advantages of TIG welding are:
- High quality, stronger welds
- Used for "first pass" welds on various sizes of pipe
- Especially useful for welding thin parts and components
- Wide variety of filler material/metal can be used
- Long-lasting - highly resistant to cracking and corrosion over long periods of time
Regardless of how complex your component requirements are, get in touch with the experienced staff at Pendarvis Manufacturing to discuss all your MIG welding and TIG welding specifications!Also see our CNC precision machining abilities.