Gas Tungsten Arc Welding (GTAW), commonly known as TIG welding, is a pure species welding technology, pure, high maintenance and beautiful. Gas Metal Arc Welding (GMAW), commonly known as MIG welding, is an energetic, flexible and stable welding method. Although MIG is a commonly used method in industry, it is said that 70% of welding operations use MIG, but TIG is more professional and requires some contact. TIG welding guns suppliers introduce 10 TIG welding techniques to you.
TIG welding uses non-consumable tungsten electrodes to heat the metal. A shielding gas like argon shields the weld pool. This process produces clean, high-quality, precise welds.
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1. You will use two hands for TIG welding, so make sure that the gloves on your hands are flexible and thin enough to make you feel the filler rod, but the thickness is enough to protect your hands from heat. Try it, cotton, goatskin or soft mechanical gloves.
2. Make sure your materials are clean! Grind into shiny metal or use a stainless steel brush. No rust, paint, oil, oxide scale or other substances.
3. Find the proper torch. People who can handle angles-usually people with flexible necks. Choose air-cooled or water-cooled torch. Air cooling is equivalent to low amps, thin material welding, and extra fluidity. Water cooling prevents overheating, allows extra speed, and works well for higher amps.
4. Be very careful when grinding tungsten. Grind as uniformly as possible in the longitudinal direction. This will keep your arc from deviating. Many professionals recommend the use of desktop grinders to avoid contamination.
5. Check all connections and make sure that the rod electrode holder has not been connected to the machine.
6. Set the foot pedal that controls the current to about 3/4 of the position. You save the last point to better control the power on and off.
7. Choose a suitable size tungsten rod. Welding thick aluminum is different from welding thin materials of turbine blades. In addition, an oversized rod may cause arc instability and contamination.
8. The torch angle can be very important. Many experts recommend a distance of 1/8 to 1/4 inch from the material and an angle of 70-90 degrees-with a few exceptions (laying technique). An excessively large angle means that the heat is deflected and the rod is melted prematurely, causing balls/lumps to contaminate the puddle.
9. Do't touch the molten pool with your tip. It will damage tungsten and need to be reground.
10. Try to maintain the consistency of the weld pool with a width of about 1/4 inch. If you have completely sealed something, consider making a vent to prevent hot air from blowing away your protective gas.
TIG welding is a much slower and more cautious welding method, but it allows the welder more control and produces a fairly final product.
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