| 摘要 |
An aluminum based sub-frame in a vehicle is provided to reduce the number of components of the sub-frame by simultaneously forming components of the sub-frame using high strength aluminum alloy through a hot gas molding. An aluminum based sub-frame comprises left/right side frame members(1,2), front/rear cross members(3,4) formed separated from left/right side frame members, and a mounting bracket(5), which is mounted on the left/right side frame members to form a coupling point of a vehicle body. The left/right side frame members are manufactured using aluminum through a hydro-forming process to allow a front wheel suspension to be mounted thereon. The front/rear cross members are formed using extrusion type high strength aluminum alloy through a hot gas molding process. The front/rear cross members are connected to the left/right frame members, respectively.
|
