Friday, October 22

welding definition and clasification


– obtaining one – piece compounds by establishing interatomic bonds between the joined parts when they are heated and (or) plastic deformation.


Metal welding

– the technological process of connecting the metal (s) with such heating and / or pressure, as a result of which the continuity of the structure of the connected metal (s) is obtained.


Can be used or not used filler metal , the melting point of which is of the same order as that of the base metal (s); the result of welding is a welded joint .
This definition also includes surfacing .

By the term: fusion welding ; pressure welding ; welded construction .


“Welding of metals. Classification” , welding of metals are classified according to three main characteristics :

  • physical
  • technical
  • technological

Types of fusion welding using thermal energy:

  • Arc
  • Electroslag
  • Electron beam
  • Plasma beam
  • Ion beam
  • Glow discharge
  • Light
  • Induction
  • Gas
  • Termite
  • Foundry

Types of welding, carried out using heat energy and pressure :

  • Contact
  • Diffusion
  • Induction press
  • Gas press
  • Thermocompression
  • Arc press
  • Slag pressing
  • Thermopress
  • Stove

Types of welding, carried out using mechanical energy and pressure:

  • Cold
  • Bang
  • Ultrasound
  • Friction
  • Magnetic pulse

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