METHOD AND DEVICE FOR FINISHING WORK PIECES

摘要

In order to shorten a process chain during material removing machining of a crank shaft, after rough machining and after hardening according to the invention a combination of single point turning with subsequent tangential turning and/or finishing and/or fine dry grinding and/or electrochemical etching is proposed as a second step.

主权项

1. A method for ready to use finish machining work pieces with rotation symmetrical and optionally non rotation symmetrical, concentric and also optionally eccentric circumferential surfaces and adjacent side surfaces, having cranks shafts wherein after chipping coarse machining and subsequent partial hardening in of the circumferential surfaces fine machining of the circumferential surface is performed, said method comprising:
performing a first fine machining step with defined edge fine turning with a precision of 5 μm or better for circularity and/or 20 μm or better for diameter, through single point turning.