Patent ID: 7156718

Claim:
A method for machining spiral bevel gears comprising the steps of: a) moving a rotationally symmetric tool and a workpiece into respective first start positions; b) processing a first complete tooth space through a generating process using a first roll direction at a preset generating depth, the tool and the workpiece each reaching a first end roll position; c) moving the tool and the workpiece into respective second start positions near the previously reached first end roll positions; d) rotating the workpiece around a tooth index; e) processing a second complete tooth space through a generating process using a roll direction reversed in relation to the first roll direction, the tool and the workpiece each reaching a second end roll position near the first start positions; f) moving the tool and the workpiece to the respective first start positions; g) rotating the workpiece around said tooth index; and h) repeating steps b)–g) for processing additional complete tooth spaces until all tooth spaces of the workpiece have been processed.