Measurement of axial dimensions between internal and external steps

October 18, 2018

In production, some parts with high linear dimensions between internal and external steps are often encountered (Fig. 1). For such parts, the c size cannot be measured by the usual method. Therefore, the two dimensions of a and b are indirectly guaranteed, according to the principle of size chain conversion. It is not economical or scientific to increase the manufacturing difficulty of the two dimensions a and b. We have explored a method for directly measuring the c size.