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    • 3. 发明公开
    • METHOD FOR FORMING METAL MEMBER HAVING EXCELLENT SHAPE FREEZING PROPERTIES
    • VERFAHREN ZUR FORMUNG EINES METALLELEMENTS MIT HERVORRAGENDEN FORMFESTIGUNGSEIGENSCHAFTEN
    • EP2578328A1
    • 2013-04-10
    • EP11786579.0
    • 2011-05-23
    • Nippon Steel & Sumitomo Metal Corporation
    • DAIMARU, Seiichi
    • B21D5/01B21D1/10B21D22/26B21D24/00
    • B21D22/00B21D22/02B21D22/26B21D37/10
    • When forming a hat-shaped cross section member having, on its cross section perpendicular to its longitudinal direction, vertical wall portions (1b and 1b) on both sides, flange portions (1a and 1a) on both sides connected to the respective vertical wall portions (1b and 1b), and a top sheet portion (1c) connected to the vertical wall portions (1b and 1b) on both sides, and having a bent portion (2) bent in the longitudinal direction with the flange portions (1a and 1a) positioned outside by using punches (5) and dices (4), a dice shoulder radius of the dice (4) for obtaining the final shape of the hat-shaped cross section member is set to R 0 , the hat-shaped cross section member is formed by the dice (4) having a dice shoulder radius R 1 larger than the dice shoulder radius R 0 , and then the hat-shaped cross section member is formed by the dice (4) having the dice shoulder radius R 0 . By performing the forming at two stages as above, stress relaxed in a compressing direction acts in the flange portions (1a and 1a) in the final shape, and thus the balance of tensile-compressive stresses can be minimized.
    • 当形成具有垂直于其纵向方向的横截面上的垂直壁部分(1b和1b)的两侧的垂直壁部分(1a和1a)的帽状截面部件,两侧的凸缘部分(1a和1a)连接到相应的垂直壁部分 (1b和1b)和两侧连接到垂直壁部分(1b和1b)的顶片部分(1c),并且具有弯曲部分(2),其沿着纵向方向弯曲,凸缘部分(1a和1a) )通过使用冲头(5)和骰子(4)定位在外部,用于获得帽形横截面构件的最终形状的骰子(4)的骰子肩部半径被设置为R 0,帽形横截面 构件由具有大于骰子肩部半径R 0的骰子肩部半径R 1的骰子(4)形成,然后由具有骰子肩部半径R 0的骰子(4)形成帽状横截面构件。 通过如上所述进行两个阶段的成形,在压缩方向上松弛的应力在最终形状的凸缘部分(1a和1a)中作用,因此可以使拉伸 - 压缩应力的平衡最小化。
    • 4. 发明公开
    • Rotating structure for rotary forming die
    • Drehstrukturfürein drehbares Umformwerkzeug
    • EP2320102A2
    • 2011-05-11
    • EP10187817.1
    • 2010-10-15
    • Yourbusiness Co., Ltd.
    • Kinoshita, Tadatoshi
    • F16C35/02B21D19/08
    • B21D19/08B21D19/086B21D28/32B21D37/10F16C23/045
    • There is provided a rotating structure of a rotary member (22) disposed in a press molding apparatus (21) including the rotary member (22); a main body (23); and a rotating block (11), wherein the rotating block (11) includes a convex strip (12) to be attached to the lower portion of the rotary member (22) and a concave strip (13) to be attached to the main body (23), and the convex strip (12) includes a flat mounting portion (14) and a convex sliding portion (15), and is formed with bolt holes (16) penetrating through the mounting portion (14) and the convex sliding portion (15) at a plurality of positions, the concave strip (13) includes a flat mounting portion (16) and a concave sliding portion (17), and is formed with bolt holes (19) penetrating through the mounting portion (18) and the concave sliding portion (17) at a plurality of positions, and the convex sliding portion (15) and the concave sliding portion (17) are positioned at slidable positions.
    • 提供了设置在包括旋转部件(22)的加压成型设备(21)中的旋转部件(22)的旋转结构。 主体(23); 以及旋转块(11),其中所述旋转块(11)包括附接到所述旋转构件(22)的下部的凸条(12)和附接到所述主体的凹条(13) (23),并且所述凸条(12)包括平坦安装部分(14)和凸形滑动部分(15),并且形成有穿过所述安装部分(14)的螺栓孔(16)和所述凸形滑动部分 (15)在多个位置处,所述凹条(13)包括平坦安装部分(16)和凹形滑动部分(17),并且形成有穿过所述安装部分(18)的螺栓孔(19)和 在多个位置处的凹形滑动部分(17)和凸形滑动部分(15)和凹形滑动部分(17)位于可滑动位置。