Method for manufacturing alloy wheel for automobile
AssigneeAsa S.A.
InventorJeong-Hoon Baek
Life of this patent
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Abstract
A method for manufacturing an alloy wheel for automobiles, the alloy wheel including a rim part having a portion running in and out from a rim flange to a drop center, and a disc part fitted in the rim part is disclosed. The method comprising forging of an alloy billet to obtain a cup-shaped preform, flowforming of the preform to obtain a seamless tube, cutting of the seamless tube into unit tubes, primary roll forming of the unit tube to obtain a preliminarily shaped unit tube, secondary roll forming of the preliminarily shaped unit to obtain a final shaped rim part, and attaching a disc part to the rim part.
Claims5
A method for manufacturing an alloy wheel for automobiles including a rim part having a portion running in and out from a rim flange to a drop center, and a disc part fitted in the rim part, comprising the steps of:
- carrying out forging of an alloy billet to obtain a cup-shaped preform;
- carrying out flowforming of the preform to obtain a seamless tube;
- cutting the seamless tube into unit tubes;
- carrying out primary roll forming of the unit tube to obtain a preliminarily shaped unit tube;
- carrying out secondary roll forming of the preliminarily shaped unit tube to obtain a final shaped rim part;
- and
- attaching a disc part to the rim part.
Dependencies are inferred from the claim text.