Spannwelle und Verfahren zu deren Herstellung

摘要

The invention concerns a clamping shaft (14) which comprises at its end face at one actuating end (141) a recess (25) and at its other end a generated profile formed as a clamping end (142) for actuating clamping elements (23) radially relative to the longitudinal axis (18) of the clamping shaft. The invention also concerns a method of producing this clamping shaft. According to the invention, the clamping shaft (14) is subjected to hardening in the region of the clamping end (142), a hardness of at least 63 HRC being set. The actuating end is designed to have a minimum degree of toughness corresponding to a notched bar impact bending work of 40 J.