• 2021-04-14
    Welding processes are generally classified into three basic categories: fusion welding、solid-state welding and .

  • Brazing and soldering

    内容

    • 0

      Among the following welding processes, is NOT applicable to aluminum alloys. A: GTAW B: GMAW C: EBW D: ESW

    • 1

      The simplest method of welding two pieces of metal together is _____ as pressure welding() A: better B: not C: know D: familiar

    • 2

      The functions of the welding slag contain:_____________、_____________and _____________。

    • 3

      In Resistance Welding, the resistances include

    • 4

      Welding tests are required in weldability analysis.