Welding – a fabrication process that joins materials, usually metals or thermoplastics, by causing coalescence. This is often done by melting the workpieces and adding a filler material to form a pool of molten material (the weld puddle) that cools to become a strong joint, with pressure sometimes used in conjunction with heat, or by itself, to produce the weld.
Welding – a way of heating pieces of metal using electricity or a flame so that they melt and stick together. There are many kinds of welding, including
- arc welding
- resistance welding
- gas welding
- [Metal inert gas (MIG) welding or Gas metal arc welding
- Tungsten inert gas (TIG) welding or Gas tungsten arc welding
- Shielded metal arc welding
- Electron beam welding (EBW) – a fusion welding process. A beam of high-velocity electrons is applied to the materials being joined.
- fusion – the act of combining or blending into a whole