Aluminum Welding

You can heat up aluminum very fast. Nevertheless, it melts very slowly. Because of this, many welders say that welding aluminum is not easy unless they use some special methods. Experienced welders first heat it with a blowtorch when welding, as aluminum has the tendency to distort when a welding torch is focused on it.

Preheating it with a blowtorch restricts such distortion. You need to move a welding torch very fast on the aluminum surface than you normally do when welding other metals. Experienced welders do not stop moving their welding torches when they do aluminum welding, as it causes aluminum to heat up very fast. They use argon and helium gases to do this task depending on the equipment they use.

You can weld aluminum with MIG welding equipment too. Although the standard equipment to weld aluminum is the TIG welder, many are unable to use it due to its high cost. You cannot buy a TIG welder unless you pay an amount as much as $6000. It is necessary to stop the welding gun quick if the tungsten electrode in it seems contaminated. Although, you are able to fill gaps on the surface, when joining metals with weld such as steel, with aluminum welding, it is impossible, as every gap in the aluminum surfaces should be fitted tightly to give a nice, clean appearance.

Normally, aluminum easily cracks, warp and bend and it does not simply stick. In some, you need welding safety gear, supply of argon gas, heat sink, TIG welder, stainless steel brush and heat sink to do aluminum welding. First you have to wear a suitable dress that has long thick sleeves to protect from possible burning while welding. Now, use an electrical cleaner to clean the surface of the aluminum. As earlier mentioned, it has high tendency to heat fast. Therefore, you have to use a heat sink to tightly hold the aluminum over it to prevent warping and getting the spots you have to work with too hot.

To make your job easier, you have to preheat aluminum before welding. You can do it by sticking aluminum in an oven that has a thermometer. You can also use a propane torch for this task. Look whether the pieces are flush while aluminum welding is done. Aluminum has a high tendency to create spaces between metal parts when welding, so avoid this possibility altogether by keeping the pieces tightly together while welding.

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