| 摘要 |
An upper arm of an automobile is provided to remove welding or after-machining, and to reduce manufacturing time and costs. An upper arm(50) of an automobile comprises a cutting part, a bent part, first and second bush fixing parts(36,38), an axle fixing part, first and second fixing holes(42,44) and axle fixing holes(46). The upper arm forms the cutting part for cutting a connecting part connected to first and second extrusion parts, the bent part by widening the first and second extrusion parts from the cutting part toward both sides, the first and second bush fixing parts and the axle fixing part by compressing ends of the first and second extrusion parts, and the first and second fixing holes and the axle fixing holes for fixing a bush and an axle to the first and second bush fixing parts and the axle fixing part. |
