Hard broaching is used to clear a profile of hardened/ heat treated workpieces to eliminate hardness distortions.
Due to the hardening/ heat treatment of workpieces, their profiles often show a delay. In general, the profile coincides something so that tolerances are not maintained. The difference of the dimensions is not predictable. So the problem can not be solved by working with allowance on.
The hard broaching results in a clearing of the hardened/ heat treated workpieces. As a result, a calibration of the specified profile dimensions is achieved.
The broaching tools used by Gleser GmbH for hard broaching consist of a tool body made of HSS and the broaches made of solid carbide with a high-quality multilayer coating.