Resistance spot welding is welding technique that is used for almost all known metals. 接觸點焊是適用于幾乎所有金屬的技術(shù)。The actual weld is made at the interface of the parts to be joined. 實際在不同部分的接觸面進行焊接。The electrical resistance of the material to be welded causes a localized heating at the interfaces of the metals to be joined.被焊接材料的電阻引起材料的接觸面產(chǎn)生局部發(fā)熱。Welding procedures for each type of material must be developed for the most satisfactory results.各種材料的焊接工藝必須描述到基本令人滿意的程度。It is possible that shunt currents flowing through a previously made spot weld will take welding current away from the second second spot weld to be made. 有可能通過前一個完成焊點的分路電流將使電流遠離將要操作的第二個焊點。This will occur if the two spot welds are too close together, and it will happen with all metals. 對于所有的金屬來說，如果兩個焊點在一起距離非常近這鐘情況將發(fā)生。The following tables and charts are intended as guides for setting up resistance spot welding procedures. 下面的表格和圖形是接觸點焊的工藝的說明。The exact time, pressure, and current setting will depend on the specific application and the KVA rating of the resistance spot welding machine employed. 詳盡的運用說明和接觸點焊機的千伏安級別說明了準確時間，電壓，電流設置。Some areas of the tables may not apply to resistance spot welders in the KVA ratings available from this company.在這家公司提供的千伏安級別表格的一些部分可能不適用于接觸點焊機。