Abstract: 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.
Type:
Grant
Filed:
October 30, 1998
Date of Patent:
August 3, 2004
Assignee:
Fundo Wheels AS
Inventors:
Einar Johan Aasen, Edward James Morley, Ole Terje Midling, Anders Sandvik