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    • 9. 发明申请
    • METHOD OF MANUFACTURING BALL JOINT HOUSING
    • 制造球接头的方法
    • WO01072448A1
    • 2001-10-04
    • PCT/JP2000/004129
    • 2000-06-23
    • B21D39/00B21J5/06B21K1/14B21K1/76B21K21/08B21K21/12B21K21/16F16C11/06
    • B21K1/762B21K1/765B21K21/08B21K21/12B21K21/16F16C11/0623
    • A method of manufacturing a ball joint housing, comprising the steps of drawing, to reduce a diameter, the tip side of a cylindrical material (41) in pressurizing direction by extrusion by pressurizing it along the axial direction thereof so as to provide an intermediate formed body (46) having a cylindrical part (43), an inclined part (44) convergent continuously with the cylindrical part (43), and a small-diameter cylindrical part (45) coaxial with the cylindrical part (43), controlling the external and internal surfaces of the cylindrical part (43) of the intermediate formed body (46) and the external surface of the small diameter cylindrical part (45), pressurizing the cylindrical part (43) from the end part along the axial direction therefof so as to crush the inclined part (44), and forming the cylindrical part (43) on a body part (14), the inclined part (44) on a bottom part (17), and the small diameter cylindrical part (45) on a connecting part (23) so as to form a first housing (11), whereby a pressurizing force is reduced remarkably below that required when a solid cylindrical material is forged, formability can be increased, cutting is eliminated owing to forward extrusion, and forming can be performed with high accuracy.
    • 一种球形接头壳体的制造方法,其特征在于,包括以下步骤:通过沿着其轴向加压使所述筒状材料(41)的加压方向的前端侧的挤压成直角,从而提供中间形成 具有圆柱形部分(43)的主体(46),与圆柱形部分(43)连续收敛的倾斜部分(44)和与圆柱形部分(43)同轴的小直径圆柱形部分(45),控制外部 以及中间成型体(46)的圆筒部(43)和小径圆筒部(45)的外表面的内表面,沿圆柱部(43)的轴方向从圆筒部(43)的轴向加压, 粉碎倾斜部分(44),并且在主体部分(14)上形成圆柱形部分(43),将底部部分(17)上的倾斜部分(44)和小直径圆柱形部分(45) 连接部件(23)以形成第一外壳 g(11),由此,当实心圆柱形材料被锻造时,加压力显着地降低到低于所需的加压力,可以提高成形性,由于向前挤压而消除切割,并且可以高精度地进行成形。