The welding principle is quite simple. Welding is a fabrication or sculptural process that joins materials, usually metals or thermoplastics, by causing fusion, which is distinct from lower temperature metal-joining techniques such as brazing and soldering, which do not melt the base metal. The Radio Frequency Welding Machine, whatever its type and size - applies heat to the two metal pieces that are to be joined. This heat causes the two metal pieces to melt slightly to form a liquid. A filler material made from tungsten or a metal alloy is often used as a filler material between the two pieces. When the heat from the welding machine is withdrawn, the liquefied metal and filler quickly solidify to join the two units.

In addition to melting the base metal, a filler material is typically added to the joint to form a pool of molten material (the weld pool) that cools to form a joint that is usually stronger than the base material. Pressure may also be used in conjunction with heat, or by itself, to produce a weld.

The engineering needs are increasing every day and almost all segments of activity make use of the welding technique in one or the other way. The welding processes have become so vital that the companies are hiring welders who have thorough understanding of the functional process, capability to read welding symbols from blueprints and higher working skills. These are fundamental characteristics that the companies look for in the welders. The following steps would ease the welding methods.

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