1范围 本国际标准规定了钢中单板厚度为0.5mm至6.0mm的电阻点焊的试样尺寸、试验设备和扭转试验程序。在某些情况下，它可用于有色金属材料。 本国际标准的目的是确定焊缝直径和断裂试样的失效类型，并评估不同钢类型、焊接参数和其他因素对电阻点焊变形特性的影响。

1 Scope This International Standard specifies specimen dimensions, testing equipment and the procedure for torsion testing of resistance spot welds with single sheet thicknesses ranging from 0,5 mm to 6,0 mm in steels. It can be used for non-ferrous materials in certain circumstances. The aim of this International Standard is to determine the weld diameter and the failure type of fractured specimens, and to evaluate the influence of different steel types, welding parameters and other factors on the deformation characteristics of a resistance spot weld.