出典:Wikipedia
出典:『Wikipedia』 (2011/06/10 20:53 UTC 版)
Fusion welding is a generic term for welding processes that rely upon melting to join materials of similar compositions and melting points.:755 Due to the high-temperature phase transitions inherent to these processes, a heat-affected zone is created in the material:755 (although some techniques, like beam welding, often minimize this effect by introducing comparatively little heat into the workpiece:778).