Invention Application
- Patent Title: Method for manufacturing alloy wheel for automobile
- Patent Title (中): 制造汽车合金车轮的方法
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Application No.: US10066912Application Date: 2002-02-04
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Publication No.: US20030145466A1Publication Date: 2003-08-07
- Inventor: Jeong-Hoon Baek
- Main IPC: B23P017/00
- IPC: B23P017/00

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.
Public/Granted literature
- US06757976B2 Method for manufacturing alloy wheel for automobile Public/Granted day:2004-07-06
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