Invention Grant
- Patent Title: Method and device for producing a one-piece vehicle wheel
- Patent Title (中): 一体式车轮制造方法及装置
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Application No.: US09424587Application Date: 1999-11-24
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Publication No.: US06325873B1Publication Date: 2001-12-04
- Inventor: Guenter Pollkoetter
- Applicant: Guenter Pollkoetter
- Priority: DE19721962 19970526; DE19808106 19980226
- Main IPC: C22F104
- IPC: C22F104

Abstract:
An apparatus and a method for producing a one-part vehicle wheel are provided, in which a substantially disk-shaped, undercut-free pre-form is cast. Immediately after casting the pre-form is conveyed to a flow-forming machine, while maintaining a residual heat and is fixed therein. The circumferential area of the fixed pre-form is split and, by subsequent spinning and flow-forming, is constructed as an intermediate form with a rim, which already substantially has the wall thickness of the rim of the finished vehicle wheel. The intermediate form is cooled, sized, and undergoes a final end-working.
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