Thursday, February 22, 2007

Introduction : What is Welding

What are you thinking if you hear word " welding"?, hard and hazard job, hot environment, or light? Maybe it 's ten percent correct, but welding is not only that. many knowledge existed behind it, and welding engineering has given large contribution in human life. If you see vehicle on road, most of them manufactured by welding, construction of building or bridge, and all of metal joining, mostly created by welding process.

So, what's welding, according to DIN Standard 1910 Part 1, herewith definition of welding :
Welding is uniting material in welding zone by application heat and/or pressure, with or without the filler of material, e.g shielding gas, flux paste or paste, may be used to make process possible or to make it easier. The energy supplied for welding is coming from outside resources.

Welding classified into several item, based on :
- Energy transfer medium operating on the workpiece from outside sources.
- Type of Parent Material
- Physical purpose of Welding

From of them, mostly category mentioned is based on physical purpose of Welding. It is divided into two big category :

I. FUSION WELDING

  • Arc Welding
  • Gas Welding
  • Resistance Welding
  • Light Ray Welding
  • Electron Beam Welding
  • Thermomechanical Welding

II. PRESSURE WELDING

  • Diffusion Welding
  • Arc Pressure Welding
  • Resistance Welding
  • Pressure Gas Welding
  • Forge Welding
  • Friction Welding
  • Cold Pressure Welding
We will discuss one by one, please click in side bar.

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