Invention Grant
- Patent Title: Method for producing vehicle wheels
- Patent Title (中): 车轮制作方法
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Application No.: US09719669Application Date: 2000-12-14
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Publication No.: US06511558B1Publication Date: 2003-01-28
- Inventor: Farid Zainullaevich Utyashev , Oscar Akramovich Kaibyshev , Vadim Gennadievich Trifonov
- Applicant: Farid Zainullaevich Utyashev , Oscar Akramovich Kaibyshev , Vadim Gennadievich Trifonov
- Priority: RU98111967 19980624
- Main IPC: C21D713
- IPC: C21D713

Abstract:
A metal forming method is used for manufacturing vehicle wheels. The invention comprises manufacturing of a wheel block comprising a central part and initially formed rim; drawing of the rim by hot rolling to obtain a wheel profile that approximates a finished wheel, and a final wheel treatment process. The rolling is conducted from either side of the wheel block, which may comprise any granular microstructure. Rolling temperature-strain rate conditions correspond to the microstructure. For a coarse-grain microstructure, the rim includes a shoulder with a thickness greater than that of the finished wheel, and thickness differences transform the microstructure into a recrystallized and/or polygonized microstructure. For a fine-grain microstructure, the rim includes a shoulder or flange with a thickness close to a thickness of a finished wheel. For mixed microstructures, the rim includes a shoulder and has a thickness greater or equal to a finished wheel.
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