| 摘要 |
<p>An improved wheel rim and method for producing the same using a rim blank which has been formed into a hoop and joined together by a friction stir welding process is disclosed. The method for producing the wheel rim of the present invention includes the steps of: (a) providing a flat blank of material having a pair of opposed ends; (b) providing a chamfer in the opposed ends of the flat blank; (c) positioning the opposed ends of the blank adjacent one another to form a generally cylindrical hoop; (d) providing a pair of flats on the hoop in the region where the opposed ends meet; (e) joining the flattened opposed ends of the hoop together using a friction stir welding process; and (f) subjecting the hoop to one or more metal forming processes in order to produce a desire wheel rim.</p> |
