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    • 6. 发明授权
    • Process for producing tubular ring with beads and die for use therein
    • 用于生产具有珠粒和管芯的管状环的方法
    • US07487655B2
    • 2009-02-10
    • US10528430
    • 2003-09-26
    • Yoshihaya ImamuraNoritaka EguchiTakeo SakuraiHiroshi Tanimoto
    • Yoshihaya ImamuraNoritaka EguchiTakeo SakuraiHiroshi Tanimoto
    • B21D26/14
    • B21D26/14B21D53/16Y10T29/49803
    • A metal mold is disposed adjacent to the outer circumference of a base ring, and has a molding face in the inner circumference and a plurality of grooves for forming beads on the molding face along the circumferential direction. A coil for electromagnetic forming is disposed adjacent to the inner circumference of the base ring. When a momentary large current is applied to the coil in this arrangement, the diameter of the base ring is expanded by pressing the base ring toward the molding face of the metal mold such that the base ring is molded into a shape corresponding to the molding face by electromagnetic forming. Improvements such as a metal mold capable of degassing, a separable metal mold, roll-correcting after electromagnetic forming, application of momentary large current over several times, a metal mold with a cutting blade, use of a base ring with a large number of holes, and a metal mold with positioning means are then added. With these improvements, a highly accurate cylindrical ring with beads can be produced at low cost and with high productivity.
    • 金属模具与基座的外周相邻设置,在内周具有成形面,在周向上在成型面上形成多个用于形成珠的槽。 用于电磁成形的线圈设置成与基座的内周相邻。 当以这种方式对线圈施加瞬时的大电流时,通过将基座环朝向金属模的成型面压制基座环的直径,使得基座环模制成与模制面对应的形状 通过电磁成形。 可以进行脱气的金属模具,电磁成形后的卷边校正,多次施加瞬时大电流等的改进,具有切割刀片的金属模具,使用具有大量孔的基座环 然后添加具有定位装置的金属模具。 通过这些改进,可以以低成本和高生产率生产具有珠的高度精确的圆柱形环。
    • 8. 发明授权
    • Press forming method for aluminum alloy sheet and pressing device
    • 铝合金板压制成型方法
    • US08051696B2
    • 2011-11-08
    • US12162520
    • 2007-03-07
    • Masatoshi YoshidaHaruyuki KonishiTakeo Sakurai
    • Masatoshi YoshidaHaruyuki KonishiTakeo Sakurai
    • B21D22/00
    • B21D22/22B21D22/26B21D25/02B21D37/08
    • The invention provides a press forming method of an aluminum alloy sheet and a press device capable of forming a large panel which is an automobile body outer panel such as a luggage outer panel and the like and is of a shape difficult in forming. In a method of press forming of the aluminum alloy sheet 30 into a formed product panel having non-contact outer peripheral parts 5, 6 not contacting the punch for forming the center part of the panel until the vicinity of the bottom dead point, the first punch forming the center part 2 of the panel and the second punch 15 capable of shifting independently with respect to the first punch are provided, and these punches are interlocked with each other so that the second punch 15 is made contact the non-contact outer peripheral parts 35, 36 of the sheet with the relative position of the second punch 15 with respect to the first punch 11 being shifted to the dice 22 side.
    • 本发明提供一种铝合金板的冲压成形方法和能够形成作为诸如行李箱外板等的汽车车身外板的具有难以成形的形状的大型面板的压制装置。 在将铝合金板30压制成成形产品板的方法中,所述成形产品板具有不接触用于形成板的中心部分的冲头的非接触外周部分5,6直到下死点附近的第一 提供形成板的中心部分2的冲头和能够相对于第一冲头独立移动的第二冲头15,并且这些冲头彼此互锁,使得第二冲头15与非接触外周接触 具有第二冲头15相对于第一冲头11的相对位置的薄片的部分35,36移动到模具22侧。
    • 10. 发明申请
    • PRESS FORMING METHOD FOR ALUMINUM ALLOY SHEET AND PRESSING DEVICE
    • 铝合金板和压制装置的压制成形方法
    • US20090038365A1
    • 2009-02-12
    • US12162520
    • 2007-03-07
    • Masatoshi YoshidaHaruyuki KonishiTakeo Sakurai
    • Masatoshi YoshidaHaruyuki KonishiTakeo Sakurai
    • B21D28/00B21D31/00
    • B21D22/22B21D22/26B21D25/02B21D37/08
    • The invention provides a press forming method of an aluminum alloy sheet and a press device capable of forming a large panel which is an automobile body outer panel such as a luggage outer panel and the like and is of a shape difficult in forming. In a method of press forming of the aluminum alloy sheet 30 into a formed product panel having non-contact outer peripheral parts 5, 6 not contacting the punch for forming the center part of the panel until the vicinity of the bottom dead point, the first punch forming the center part 2 of the panel and the second punch 15 capable of shifting independently with respect to the first punch are provided, and these punches are interlocked with each other so that the second punch 15 is made contact the non-contact outer peripheral parts 35, 36 of the sheet with the relative position of the second punch 15 with respect to the first punch 11 being shifted to the dice 22 side.
    • 本发明提供一种铝合金板的冲压成形方法和能够形成作为诸如行李箱外板等的汽车车身外板的具有难以成形的形状的大型面板的压制装置。 在将铝合金板30压制成成形产品板的方法中,所述成形产品板具有不接触用于形成板的中心部分的冲头的非接触外周部分5,6直到下死点附近的第一 提供了形成面板的中心部分2的冲头和能够相对于第一冲头独立移动的第二冲头15,并且这些冲头彼此互锁,使得第二冲头15与非接触外周接触 具有第二冲头15相对于第一冲头11的相对位置的薄片的部分35,36移动到模具22侧。