Voltage power, AC/DC settings, and duty cycle are important factors to consider when choosing the proper welder. It will need both sufficient power and operating time (duty cycle) to complete your jobs in full.
Types of welders can include:
• MIG welders
• TIG welders
• Stick welders
• Multi-Operator welders
• Spot welders
• Submerged Arc welders
• Multi-Process welders
• Engine drives
• Wire feeders
When deciding what welder to choose, it is important to understand welding processes and their uses. Here are the four basic welding processes:
Gas Metal Arc Welding (GMAW) was developed in the 1940s as a process that is considered semi-automatic and uses electricity to produce heat, an electrode, and shielding gas to keep air out of the weld. This type of welder (MIG welder) uses a constant DC current while gas and wire are continuously fed through the welding gun and is presented as the trigger of the welding gun is depressed.
Gas Tungsten Arc Welding (GTAW) is the manual welding process that requires one hand holding the TIG torch that produces the arc and the other hand used to add the filler metal to the weld joint. TIG welding is the most versatile but also the most difficult to learn and produces the highest quality weld when done correctly. TIG welding is greatly used for welding metals other than common steel, critical weld joints, and small precise welds. Three common gases for shielding include argon, helium, and an Ar/He mix.
Shielded Metal Arc Welding (SMAW) is often used in high wind outdoor repair situations. Current is passed through the leads to an electrode. The electrode is covered in flux which protects the arc during a weld so that shielding gas is not needed.
Flux Cored Welding
Flux Cored Arc Welding (FCAW) is quite similar to MIG welding, though the greatest difference is the filler metal. So that a shielding gas is not required, the filler metal is hollow and filled with flux. Alongside stick welding, flux cored welding is often used in outdoor, high-wind repairs.
For preparing metal prior to welding, angle grinders are a critical part of the welding process, especially for TIG and MIG welding. Picking an angle grinder with enough power to sufficiently clean the metal prior to welding is a necessity.
Clamps are a small but critical part of the welding process in that they keep a weld joint lined up properly. Without clamps, a workpiece could shift and the weld could become crooked, resulting in a significant loss of time if it has to be re-welded. The more clamps, the better.
A critical safety measure that protects welders from electrical shock is a grounding clamp. As well, good quality grounding clamps make it easier to start an arc. Some clamps are lined with copper on the edges, but the best ground clamps are made of copper. For a grounding clamp to be most effective, it must maintain constant contact with the piece being worked on.
Depending on the job at hand and your setup, safety measures may vary. At the least, a fire extinguisher and adequate ventilation need to be present. Certain welding processes can produce toxic fumes when certain materials are being welded, so ventilation is non-optional.
Welding generates electric arcs that emit ultraviolet light rays. The brightness generated from welding can inflame the cornea and burn the retinas in your eyes. Without the right welding equipment, it is possible to even go blind. Dark faceplates are the go-to for the best protection from exposure to ultraviolet rays.
Aside from protecting your eyes, welding helmets are a critical piece of equipment because they also protect your face from sparks and other debris. We recommend an auto-darkening helmet to allow welders to keep both hands on task without the need to manually put on the darkening visor.
If the welding torch moves even an inch it can make a weld go bad. For this reason, experienced welders recommend auto-darkening helmets as to not have to remove focus from the job at hand.
From the high-quality outer layer of animal hide, top-grain leather makes the best welding gloves as they can balance flexibility with heat protection varying depending on the welding process in use. The highest heat is created from stick welding and requires heavy-duty stiff gloves that can withstand high temperatures. Lighter and more flexible gloves can be used for TIG welding as it produces the least amount of heat.
Ideal for TIG and MIG welding, goatskin leather gloves are a popular choice. For a more comfortable and shaped fit, deerskin gloves offer an advantage. Top-grain pigskin, cowhide, and elk skin are the best glove options for stick welding.
Synthetic shirts not specifically made for welding can be a fire hazard when the sparks fly. Since welding produces ultraviolet rays, it is possible to get a sunburn on exposed skin, thus long sleeves are especially important.
The safest choice is leather clothing, as well as the warmest choice. This being said, many welders wear leather sleeves, gauntlet gloves, a leather apron, or other welding aprons with long sleeves and an open back. Synthetic clothing is quite flammable, so a cotton shirt is a go-to choice to wear under protective gear.
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We provide industrial supplies and vendor-managed inventory to customers all over the Atlanta Metropolitan area in Georgia. This includes Alpharetta, Auburn, Bogart, Braselton, Buford, Commerce, Cumming, Dacula, Hoschton, Jefferson, Monroe, Statham, and Winder. If your looking for industrials supplies from an affordable and reputable company GTA is here for you!
Our goal is to be more than your main industrial supply company. We want to partner with our customers to help increase your business efficiency and production.
738 West Winder Industrial Pkwy
Winder, Ga. 30680
Phone: 678 288-5881