Tuesday, August 4, 2009

Mig Welding Basics That You Will Learn Fast And Never Forget

By James Paul

Tack welding is employed across the welding and fabrication industry. Even the most basic welding roles at home will need you to do tack welds. This is one of the mig welding basics you need to learn.

This is one of the mig welding basics you will want to learn. Fabrication and welding methods call for the need of tack welding. Made weldments and elements need tack welding to hold assemblies and parts together during first fit up and measuring. These welds are just to hold things square.

Tack welding is used in mig welding, tig welding and arc welding. A tack weld is a little weld that is placed in critical positions of a project or work piece to hold it prepared keep it square and deter it from warping out of square.

An example of a tack weld would be if you were making a gate out some steel box section. Step 1 would be to chop the steel to the necessary lengths. Then you would lay the 4 lengths of steel on your workbench or onto the floor. You would then employ a square to align the steel into a rectangle and clamp them together.

The tack welds are placed on all 4 corners so that it is held true and square. These little tack welds will when you full weld the steel together, forestall the steel frame from twisting and bend out of square a load more than if you simply started fully welding it all up. Also tack welds are tiny so that if you are making a mistake you cut and square things up again, it is better to grind away a tiny tack weld versus a big full weld. When you know the tack weld there are numerous other mig welding basics that you can do.

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