Explain classification of welding processes, Mechanical Engineering

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 Classification Of Welding Processes

The classificated depending upon the nature of heat source and its movement resulting in spot, seam or zonal welds; or on the extent of heat generation viz., low heat and high heat.

1.Cast-weld processes

  • Thermit welding
  • Electoslag welding

2.  Arc , Beam, and Flame welding processes

A.) Seam welds

  • Carbon Arc
  • Submerged Arc
  • Shielded metal Arc
  • Fus Arc
  • Gas tungsten Arc
  • Gas metal Arc
  • Plasma Arc
  • Plasma -MIG
  • Electrogas welding
  • Electron beam welding
  • Laser welding
  • Oxy-acetylene welding

B.) Spot welds

  • GTAW
  • GMAW
  • Stud welding

2.  Resistance welding processes

A.)  Spot welds

  • Spot welding
  • Projection welding

B.) Seam welds

  • Seam welding
  • Electric resistance welding
  • H.F. Resistance welding
  • H.F. Induction welding

C.) Zonal welds

  • Resistance Butt welding
  • Flash Butt welding
  • Percussion welding

3. Solid-state welding processes

A.) High heat input processes

  • Friction welding
  • Forge welding
  • Diffusion bonding

B.) Low heat input processes

  • Ultrasonic welding
  • Explosion welding
  • Cold pressure welding
  • Thermo-compression bonding

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