Saturday, July 4, 2009

Can Spots Appear Anyware

WHAT IS THE WELD?

Welding is a process where union is made of two materials, usually achieved through fusion, in which the parts are welded by fusing the two and adding a molten filler material (metal or plastic), which has a melting point lower than the piece welding, to get a bath of molten material (called the weld) which, when cooled, becomes in a strong union.

Sometimes the pressure is used in conjunction with heat, or by itself, to produce the weld, which contrasts with the soldering, which is the melting of a material of low melting point, between pieces of work to form a bond between them, without melting the workpieces.

Many different energy sources can be used for welding, including a gas flame, an electric arc, laser, electron beam, and friction or ultrasound.

The energy required to form the joint between two pieces of metal usually comes from an electric arc, while the energy for welding merger or thermoplastic usually comes from direct contact with a tool or a hot gas.

While it is often an industrial process can be welded in many different environments, including outdoors, underwater and in space. Regardless of the location. Even this, welding remains dangerous, and should take precautions to avoid burns, electric shock, poisonous fumes, and overexposure to ultraviolet light.

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