| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a component provided with a bush fixing part, which is formed of an extruded material and even when the bush fixing part is provided on a surface parallel to an extrusion direction, can secure strength of the bush fixing part without causing weight increase or the like.SOLUTION: The component (a lower arm) provided with a bush fixing part is manufactured by: cutting out an extrusion molding 26 provided with a tab 27 for molding the bush fixing part 18 by cutting off an extruded material to a constant length W and cutting off the molding from one cutting surface 28 relative to the tab in an extrusion direction A in dimension equal to thickness T of the bush fixing part or more to form a first joining surface 31; firstly starting cutting the first joining surface and cutting the surface, with the thickness dimension left, of the bush fixing part in parallel to the other cutting surface 29 of the tab to form a site 36 for molding the bush fixing part comprising a second joining surface 32; bending the site for molding the bush fixing part in a cylindrical shape; and butting and joining the second joining surface to the first joining surface so as to form the bush fixing part whose shaft center o1 direction is orthogonal to the extrusion direction and whose inner diameter D is larger than the constant length W.</p> |
