How to accurately measure the indentation of a Rockwell hardness tester?

Accurately measuring the indentation of a Rockwell hardness tester is crucial.
Before measurement, ensure that the precision of the measuring tools meets the requirements; typically, a microscope or a specialized hardness tester measurement device is used. Place the specimen on the measurement platform and adjust the focal length of the microscope so that the indentation is clearly visible.
For indentations produced by a diamond cone indenter, the lengths of the two diagonals should be measured, and the average value taken as the characteristic dimension of the indentation; for indentations produced by a steel ball indenter, the diameter is measured directly.
During the measurement process, pay attention to the measurement direction; measurement should be conducted along the main axis of the indentation to avoid measurement errors caused by directional deviation. At the same time, multiple measurements should be taken and averaged to reduce accidental errors. Additionally, ensure a stable measurement environment and avoid interference from vibrations and light that could affect measurement precision.

The Rockwell hardness testers from Kunshan Fuze Testing Equipment Co., Ltd. are equipped with high-precision measurement systems that can automatically and accurately measure indentation dimensions, improving measurement efficiency and accuracy.