Welding technology and types of welding

Welding is a type of technology whose main purpose is to permanently connect device elements and structures. Welding is carried out mainly on metal elements and on plastics with the use of appropriate machines and tools for this purpose.

The welding technology is based on heating the contact surfaces of the elements to the appropriate temperature so that they transform into a plastic state, and then pressing them together so that they can connect with each other. Only the contact boundary is plasticized. Depending on the type of welding selected, the surface can also be pressed down before heating.

We distinguish between such types of welding as:

  • diffusive
  • electrical resistance (resistive)
  • a hot plate
  • hot air
  • inductive
  • spark plugs
  • focal lengths
  • high frequency currents
  • frictional
  • friction mixed weld seam (FSW)
  • ultrasonic
  • vibrating
  • explosive
  • crush
  • short circuit

In the past, the most frequently used type of welding was focal - elements were heated in a hearth or in a furnace, and then forged with a hammer. Now, more modern solutions are used. In the case of metal elements, resistance electric welding is most often used.

In order to carry out welding work, the employee must have appropriate permissions.

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