A two-piece wheel is formed by joining a center part to a rim part by a friction stir welding. The weld joints are prepared so that at least a portion of a first circumferential weld joint is not parallel to at least a portion of a second circumferential weld joint. Thus, a cast alloy center part may be securely and efficiently attached to a wrought alloy rim part.
申请公布号
EP0854792(A1)
申请公布日期
1998.07.29
申请号
EP19960937593
申请日期
1996.10.25
申请人
NORSK HYDRO ASA
发明人
AASEN, EINAR, JOHAN;MORLEY, EDWARD, JAMES;MIDLING, OLE, TERJE;SANDVIK, ANDERS