Abstract
AbstractUltra-precision milling with multiple diamond cutting edges—which generally is favorable in terms of economic efficiency—requires an in-process tool setting system that allows for the compensation of alignment and fixation errors. Such a system was designed on the basis of thermal expansion as the main means of actuation. The heat input is generated by infrared light diodes which feed the respective energy to the rotating tool contactlessly. It is controlled in a way that ensures that only a specific portion of the tool holder is illuminated and therefore thermally expanded. By measuring the displacement at a reference plane with a capacitive measurement system and feeding it back to the control system, the actual position of the diamond cutting edge can be precisely set in nanometer range. This chapter gives an overview on the main technical developments for the respective prototype system and presents its performance when used in a machining environment.
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