Method of manufacture of a rotationally symmetrical part
AssigneeLeico GmbH & Co. Werkzeugmaschinenbau
InventorGunter Pollkotter
Life of this patent
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Abstract
A method of manufacture of a rotationally symmetrical part, particularly a vehicle wheel. In this method, the outer circumferential area of a circular blank is upset for forming a material accumulation or gathering and this preferably takes place asymmetrically. Subsequently, the outer circumferential area of the circular blank is radially split using a splitting roll, which forms two legs. The two legs are subsequently given the desired shape by the utilization of spinning rolls.
Claims10
Method of manufacturing of a rotationally symmetrical part in which a circular blank is clamped concentrically and rotatably about a rotational axis and a free outer circumferential area of the circular blank is upset by an upsetting roll for forming a material gathering and subsequently splitting the outer circumferential area into two legs by a splitting roll, which comprises:
- supporting the outer circumferential area, during upsetting, on both sides of the circular blank by rotary support rolls, the support rolls having rotational axes which are substantially perpendicular to the rotational axis,
- wherein only one outer edge of the outer circumferential area is upset to the material gathering, and maintaining a non-upset remaining outer circumferential area;
- and
- shaping the material gathering by the upsetting roll and the support rolls.
Dependencies are inferred from the claim text.