VORRICHTUNG UND VERFAHREN ZUR SPANABHEBENDEN BEARBEITUNG EINES TROCHOIDAL-ROTORS

摘要

A device and method for milling a trochoidal rotor having a predetermined trochoidal configuration. The trochoidal rotor is used in a trochoidal rotary device in which working chambers are defined between the rotor and a housing. The rotor device has inlet and outlet ports for passing a fluid or gas. The rotor is made by first planetating a rotor blank having a predetermined width and having an edge region about a predetermined axis. The cutting blade is provided which has a predetermined geometry and which is located at a predetermined fixed distance from the axis. The cutting blade is engaged with at least a portion of the edge region of the rotor blank. The cutting blade traverses the edge region of the rotor blank to cut the edge region into a predetermined trochoidal configuration. When the cutting blade is a helical flute, the engagement of the cutting blade with a portion of the edge region results in cutting at a predetermined location within the portion of the edge region. This cutting location continuously sweeps back and forth in an axial direction across the portion of the edge region as a rotor blank rotates.