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Mechanical Engineering vocabulary · Manufacturing Processes

Welding

Meaning in mechanical engineering, with examples

/ˈwɛldɪŋ/nounCore term

In mechanical engineering, welding means: Joining metal parts permanently by melting them at the joint, often with a filler metal, so that they become one piece when they cool.

In Turkish: kaynak, kaynakla birleştirme

How it is used

Used in fabrication, steel structures, piping and repair. Common processes are MIG/MAG, TIG, stick and spot welding. The verb is weld, and a weld is the joint itself. A WPS (welding procedure specification) describes exactly how a weld must be made.

Example sentences

  1. TIG welding gives a cleaner finish on thin stainless steel.

  2. After welding, the frame must be stress-relieved and checked for distortion.

Common collocations

  • MIG welding
  • TIG welding
  • spot welding
  • welding procedure
  • welding defect
  • assemblyA group of parts joined together to form a unit, or the process of putting parts together. A smaller unit inside it is called a subassembly.
  • sheet metalMetal made into thin, flat sheets, usually less than about 6 mm thick, and the parts made from it by cutting, bending and joining.
  • non-destructive testingMethods of checking materials, welds and parts for cracks and other defects without damaging them, such as ultrasonic, radiographic, magnetic particle or dye penetrant tests.
  • heat treatmentHeating and cooling a metal part in a controlled way to change properties such as hardness, strength or ductility. Annealing, hardening and tempering are examples.
  • corrosionSlow damage to a metal caused by a chemical reaction with its environment, such as water, air or chemicals. Rust on steel is the most familiar example.

More terms: Manufacturing Processes

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