... adopt IGBT module usage:harden,weld,forge,anneal and melt High Frequency Industrial HeaterApplications 1. Brazing categories:1.1 welding diamond ... a variety of welding.1.4 The welding of various wood working tools, such as various woodworking planer, milling, and ... , all kinds of shafts, spline shafts, pins and other high-frequency quenching.3.6 Machine tool industry guide, tools swallowtail quenching ...