公开(公告)号：US09452792B2

公开(公告)日：2016-09-27

申请号：US14116847

申请日：2012-04-23

申请人： Shusaku Takagi ,  Kaneharu Okuda ,  Yoshikiyo Tamai ,  Takeshi Fujita ,  Yoshitaka Okitsu ,  Tadashi Naito ,  Naoki Takaki ,  Tomoaki Sugiura

发明人： Shusaku Takagi ,  Kaneharu Okuda ,  Yoshikiyo Tamai ,  Takeshi Fujita ,  Yoshitaka Okitsu ,  Tadashi Naito ,  Naoki Takaki ,  Tomoaki Sugiura

IPC分类号： C22C38/04 ,  C22C38/12 ,  C22C38/06 ,  C21D7/00 ,  B62D29/00 ,  C21D9/00 ,  C22C38/00 ,  C22C38/02 ,  B21D53/88 ,  C21D9/46

CPC分类号： B62D29/007 ,  B21D53/88 ,  C21D9/0068 ,  C21D9/46 ,  C21D2211/001 ,  C21D2211/005 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  Y10T29/49622

摘要： A vehicle collision energy absorbing member is excellent in collision energy absorbing performance in the axial direction upon collision. The vehicle collision energy absorbing member is formed of a high strength thin steel sheet having TS of at least 980 MPa and having an n-value and a limit bending radius Rc satisfying the following Formula: Rc/t≦1.31×ln(n)+5.21.

摘要翻译： 车辆碰撞能量吸收构件在碰撞时轴向碰撞能量吸收性能优异。 车辆碰撞能量吸收部件由具有至少980MPa的TS且具有满足下式的n值和极限弯曲半径Rc的高强度薄钢板形成：Rc /t≤1.31×ln（n）+ 5.21。

公开(公告)号：US20120171506A1

公开(公告)日：2012-07-05

申请号：US13395477

申请日：2010-09-28

申请人： Takayuki Futatsuka ,  Kazuhiko Higai ,  Yoshikiyo Tamai ,  Takaaki Hira ,  Takeshi Fujita ,  Yuji Yamasaki

发明人： Takayuki Futatsuka ,  Kazuhiko Higai ,  Yoshikiyo Tamai ,  Takaaki Hira ,  Takeshi Fujita ,  Yuji Yamasaki

IPC分类号： B21C1/00 ,  B21D31/00

CPC分类号： B21D5/015 ,  B21C37/14 ,  B21D47/01 ,  E04C3/07 ,  E04C2003/0413 ,  E04C2003/0439 ,  E04C2003/0465 ,  Y10T428/12229

摘要： A curved-part forming method for obtaining a curved part by performing forming on a blank formed of a single metal plate, the method including a bending process in which the blank having a curved outline corresponding to a curve of the curved part in a longitudinal direction is bent into a sectional shape corresponding to a division portion of a sectional shape of the curved part; and a joining process in which two or more portions obtained by the bending process are joined together.

摘要翻译： 一种用于通过在由单个金属板形成的坯料上进行成形来获得弯曲部分的弯曲部分形成方法，所述弯曲部分形成方法包括弯曲过程，其中所述坯料具有与所述弯曲部分的纵向方向上的曲线相对应的弯曲轮廓 弯曲成对应于弯曲部分的截面形状的分割部分的截面形状; 以及通过弯曲处理获得的两个以上部分连接在一起的接合工序。

公开(公告)号：US20140064831A1

公开(公告)日：2014-03-06

申请号：US14004348

申请日：2012-05-16

申请人： Yoshikiyo Tamai ,  Takeshi Fujita ,  Yasushi Kitani ,  Hiroyuki Takebe

发明人： Yoshikiyo Tamai ,  Takeshi Fujita ,  Yasushi Kitani ,  Hiroyuki Takebe

IPC分类号： B62D27/02

CPC分类号： B62D27/02 ,  B23K9/028 ,  B23K26/244 ,  B23K26/348 ,  B23K2101/006 ,  B62D21/00 ,  Y10T403/477

摘要： An automobile frame component includes a closed section constituted by welding a flange portion to a panel part, wherein when a welding position coordinate is represented in a coordinate system in which an end of a contact position between the flange portion and the panel part is assumed as 0, and a flange outer end side of the flange portion is assumed as negative (−) whereas a vertical wall side is assumed as positive (+), and when a radius of a circular arc-like portion connecting a vertical wall portion and the flange portion in the substantially hat-like shape is denoted as R (mm), and a weldable gap amount is denoted as a (mm), a welding position X represented by the following formula is continuously welded using a one-side welding method: +√(2Ra−a2)≧X>1.5 where R≧2.

摘要翻译： 汽车框架部件包括通过将凸缘部分焊接到面板部件而构成的封闭部分，其中当在将凸缘部分和面板部件之间的接触位置的端部假定为的坐标系中表示焊接位置坐标时 0，凸缘部的凸缘外端侧为负（ - ），垂直壁侧为+（+），当连接垂直壁部的圆弧状部的半径与 基本上为帽状的凸缘部分表示为R（mm），可焊接间隙量表示为（mm），由下式表示的焊接位置X使用单面焊接方法连续焊接： +√（2Ra-a2）> = X> 1.5其中R> = 2。

公开(公告)号：US20100071434A1

公开(公告)日：2010-03-25

申请号：US12444185

申请日：2007-01-22

申请人： Yoshikiyo Tamai ,  Yuji Yamasaki ,  Akihide Yoshitake

发明人： Yoshikiyo Tamai ,  Yuji Yamasaki ,  Akihide Yoshitake

IPC分类号： B21D22/21 ,  B21D24/04 ,  B62D25/00

CPC分类号： B21D22/22 ,  B21D22/201 ,  B21D37/01

摘要： A press forming method for a metal sheet is provided. The method is capable of improving a forming limit at which a crack appears in a metal sheet and being easily applied to a large press machine for mass production with a low cost, without correcting the shape of dies, such as a punch and an upper die, or changing the shape or material of a blank to a special shape or material. Dies, a surface roughness of which is an arithmetical mean roughness Ra of 7.5 μm or smaller, are used as a punch, an upper die, and a blank holder. Fluid with a kinematic viscosity of 500 mm2/s of lower (40° C.) is used as a lubricant, and is supplied to a space between a metal sheet and the blank holder, a space between the metal sheet and the punch, and a space between the metal sheet and the upper die. A die is detached from a workpiece in the middle of forming, and resuming the forming, thereby improving formability.

摘要翻译： 提供了一种用于金属板的压制成型方法。 该方法能够提高金属板中出现裂纹的成形极限，并且容易地以低成本施加到大型压制机上进行批量生产，而不校正冲头和上模等模具的形状 ，或将坯料的形状或材料改变为特殊的形状或材料。 使用其表面粗糙度为7.5μm以下的算术平均粗糙度Ra的模具用作冲头，上模和坯料夹持器。 使用运动粘度为500mm 2 / s以下（40℃）的流体作为润滑剂，供给到金属板与坯料保持架之间的空间，金属板与冲头之间的空间，以及 金属片和上模之间的空间。 在成型中间将模具与工件分离，并恢复成形，从而提高成形性。

公开(公告)号：US5720196A

公开(公告)日：1998-02-24

申请号：US626206

申请日：1996-03-29

申请人： Yoshikiyo Tamai ,  Katsuhiro Takebayashi ,  Toshio Imae ,  Hideyuki Nikaido ,  Kunio Isobe

发明人： Yoshikiyo Tamai ,  Katsuhiro Takebayashi ,  Toshio Imae ,  Hideyuki Nikaido ,  Kunio Isobe

IPC分类号： B21B13/02 ,  B21B15/00 ,  B21B37/16 ,  B21B37/26 ,  B21B37/28 ,  B21B37/38 ,  B21B29/00

CPC分类号： B21B37/26 ,  B21B37/16 ,  B21B37/28 ,  B21B13/023 ,  B21B15/0085 ,  B21B2269/12 ,  B21B2273/20 ,  B21B37/38

摘要： A method for continuously hot-rolling steel pieces, includes butt-joining the rear end of the preceding steel piece and the leading end of the succeeding steel piece, then finish-rolling the butt-joined steel pieces by supplying a continuous hot rolling facility provided with a plurality of stands having a bending function of a work roll. The method involves estimating the variation of the rolling force occurring during rolling the joint of the steel pieces at the non-stationary zone caused by said joint, calculating the changing bending force of the work roll during rolling the joint of the steel pieces from the estimated variation of the rolling force, and determining the pattern for changing the bending force taking account of said changing force, and rolling the joint of the steel pieces by regulating the bending force in response to said pattern over at least one stand, while tracking down the joint of the steel piece immediately after joining.

摘要翻译： 一种用于连续热轧钢板的方法，包括将前一个钢片的后端和随后的钢件的前端对接，然后通过提供连续的热轧设备来提供对接的对接的钢件 具有多个具有工作辊的弯曲功能的支架。 该方法包括估计在由所述接头引起的在非固定区域的钢板接头滚动期间产生的轧制力的变化，计算在从钢带的接合期间轧制轧制过程中工作辊的变化的弯曲力 轧制力的变化，以及考虑到所述变形力而确定用于改变弯曲力的图案，以及通过在至少一个支架上响应于所述图案调节弯曲力来滚动钢板的接合，同时跟踪 加工后立即关闭钢板。

公开(公告)号：US20120204993A1

公开(公告)日：2012-08-16

申请号：US13391850

申请日：2010-09-15

申请人： Kazuhiko Higai ,  Takayuki Futatsuka ,  Yoshikiyo Tamai ,  Takaaki Hira ,  Yuji Yamasaki

发明人： Kazuhiko Higai ,  Takayuki Futatsuka ,  Yoshikiyo Tamai ,  Takaaki Hira ,  Yuji Yamasaki

IPC分类号： F16L9/00 ,  B21C37/06

CPC分类号： B21D47/01 ,  B21C37/0803 ,  B21D11/20 ,  B21D47/04 ,  B21D51/06 ,  Y10T29/49391

摘要： A method for manufacturing includes a polygonal shape closed structure part with a bent shape in the longitudinal direction only by press forming. The method uses two metal plates for manufacturing a curvilineal closed structure part and includes a press forming process of forming straight or bent folding lines in the longitudinal direction of the two metal plates at positions corresponding to a polygonal bent shape with a flange formed at least at one of the ends of the width direction of each plate, a process of forming a closed structure by laying the two metal plates to overlap each other flange to flange and end to end for ends without flanges and by welding the portions laid to overlap each other in the longitudinal direction of the metal plates, and a process of forming a polygonal shape closed structure having a bent shape in the longitudinal direction by holding both ends of the closed structure and by compressing it toward its central axis.

摘要翻译： 一种制造方法包括仅通过冲压成形在纵向上具有弯曲形状的多边形封闭结构部分。 该方法使用两个金属板来制造曲线性封闭结构部件，并且包括压制成型工艺，该方法是在对应于多边形弯曲形状的位置处在两个金属板的纵向上形成直的或弯曲的折叠线，凸缘至少形成在 每个板的宽度方向的端部之一，通过将两个金属板铺设成彼此凸缘到凸缘并且端部到端而形成闭合结构的过程而不具有凸缘并且通过焊接彼此重叠的部分 在金属板的纵向方向上，并且通过保持封闭结构的两端并且朝向其中心轴线压缩而形成具有在纵向方向上的弯曲形状的多边形封闭结构的工艺。

公开(公告)号：US09009970B2

公开(公告)日：2015-04-21

申请号：US13391850

申请日：2010-09-15

申请人： Kazuhiko Higai ,  Takayuki Futatsuka ,  Yoshikiyo Tamai ,  Takaaki Hira ,  Yuji Yamasaki

发明人： Kazuhiko Higai ,  Takayuki Futatsuka ,  Yoshikiyo Tamai ,  Takaaki Hira ,  Yuji Yamasaki

IPC分类号： B21D21/00 ,  B21D47/01 ,  B21C37/08 ,  B21D11/20 ,  B21D47/04 ,  B21D51/06

CPC分类号： B21D47/01 ,  B21C37/0803 ,  B21D11/20 ,  B21D47/04 ,  B21D51/06 ,  Y10T29/49391

摘要： A method for manufacturing includes a polygonal shape closed structure part with a bent shape in the longitudinal direction only by press forming. The method uses two metal plates for manufacturing a curvilineal closed structure part and includes a press forming process of forming straight or bent folding lines in the longitudinal direction of the two metal plates at positions corresponding to a polygonal bent shape with a flange formed at least at one of the ends of the width direction of each plate, a process of forming a closed structure by laying the two metal plates to overlap each other flange to flange and end to end for ends without flanges and by welding the portions laid to overlap each other in the longitudinal direction of the metal plates, and a process of forming a polygonal shape closed structure having a bent shape in the longitudinal direction by holding both ends of the closed structure and by compressing it toward its central axis.

摘要翻译： 一种制造方法包括仅通过冲压成形在纵向上具有弯曲形状的多边形封闭结构部分。 该方法使用两个金属板来制造曲线性封闭结构部件，并且包括压制成型工艺，该方法是在对应于多边形弯曲形状的位置处在两个金属板的纵向上形成直的或弯曲的折叠线，凸缘至少形成在 每个板的宽度方向的端部之一，通过将两个金属板铺设成彼此凸缘到凸缘并且端部到端而形成闭合结构的过程而不具有凸缘并且通过焊接彼此重叠的部分 在金属板的纵向方向上，并且通过保持封闭结构的两端并且朝向其中心轴线压缩而形成具有在纵向方向上的弯曲形状的多边形封闭结构的工艺。

公开(公告)号：US5957368A

公开(公告)日：1999-09-28

申请号：US793845

申请日：1997-03-10

申请人： Katsuhiro Takebayashi ,  Yoshikiyo Tamai ,  Toshio Imae ,  Kunio Isobe ,  Hideyuki Nikaido ,  Koichi Uemura

发明人： Katsuhiro Takebayashi ,  Yoshikiyo Tamai ,  Toshio Imae ,  Kunio Isobe ,  Hideyuki Nikaido ,  Koichi Uemura

IPC分类号： B21B15/00 ,  B23D15/00 ,  B23D25/12 ,  B23K28/02

CPC分类号： B23D15/005 ,  B21B15/0007 ,  B21B15/0085 ,  B23D25/12

摘要： A continuous hot rolling method is available for continuously hot finish rolling steel pieces. The trailing end of a preceding steel piece and the leading end of a succeeding steel piece are cut by a drum shear which sandwiches the steel piece between its upper drum and lower drum, having cutting blades on the peripheries of the drums. The cut ends are heated to raise the temperatures thereof by high-frequency induction heating, pressed against each other to butt-join the cut ends. The joined steel pieces are then supplied to a rolling equipment. The trailing end of the preceding steel piece and the leading end of the succeeding steel piece are cut individually by two pairs of the cutting blades. One pair of the cutting blades has the obverses of the blades oriented in opposite directions in the obverse side and the reverse side of the steel piece. The other pair of cutting blades has the obverses of the blades oriented in the opposite directions relative to the former pair of cutting blades, while each steel piece is transferred to the same direction. The method according to the invention significantly reduces the displacement produced when the steel pieces are joined by applying transverse-type high-frequency induction, thereby realizing stable continuous hot rolling with no breakage of the rolled plate.

摘要翻译： PCT No.PCT / JP96 / 00034 Sec。 371日期1997年3月10日 102（e）1997年3月10日PCT PCT 1996年1月12日PCT公布。 公开号WO97 / 02907 日期1997年1月30日连续热轧方法可用于连续热精轧钢片。 先前的钢片的后端和后面的钢件的前端由鼓剪切割，该滚筒剪切将钢片夹在其上滚筒和下滚筒之间，在滚筒的周边具有切割刀片。 加热切割端，通过高频感应加热使其温度升高，彼此挤压以对接切割端。 然后将连接的钢件供应到轧制设备。 前两个钢片的后端和后续钢件的前端由两对切割刀片单独切割。 一对切割刀片具有在钢板的正面和反面上沿相反方向定向的刀片的相反侧。 另一对切割刀片具有相对于前一对切割刀片在相反方向上定向的刀片的相反方向，而每个钢片被转移到相同的方向。 根据本发明的方法通过施加横向高频感应来显着降低钢片接合时产生的位移，从而实现稳定的连续热轧而不破坏轧制板。

公开(公告)号：US08511129B2

公开(公告)日：2013-08-20

申请号：US12444185

申请日：2007-01-22

申请人： Yoshikiyo Tamai ,  Yuji Yamasaki ,  Akihide Yoshitake

发明人： Yoshikiyo Tamai ,  Yuji Yamasaki ,  Akihide Yoshitake

IPC分类号： B21D22/00

CPC分类号： B21D22/22 ,  B21D22/201 ,  B21D37/01

摘要： A press forming method for a metal sheet uses dies, a surface roughness of which is an arithmetical mean roughness Ra of 7.5 μm or smaller, which are used as a punch, an upper die, and a blank holder. Fluid with a kinematic viscosity of 500 mm2/s or lower is supplied to a space between a metal sheet and the blank holder, a space between the metal sheet and the punch, and a space between the metal sheet and the upper die. A die is detached from a workpiece in the middle of forming, and resuming the forming.

摘要翻译： 用于金属板的压制成型方法使用模具，其表面粗糙度为7.5μm或更小的算术平均粗糙度Ra，用作冲头，上模和坯料夹持器。 将运动粘度为500mm 2 / s以下的流体供给到金属板和坯料保持架之间的空间，金属板和冲头之间的空间以及金属板与上模之间的空间。 模具在成型中间与工件分离，并恢复成型。

公开(公告)号：US5871138A

公开(公告)日：1999-02-16

申请号：US677966

申请日：1996-07-10

申请人： Hiroshi Shishido ,  Kenji Kataoka ,  Toshisada Takechi ,  Nobuaki Nomura ,  Katsuhiro Takebayashi ,  Yoshikiyo Tamai

发明人： Hiroshi Shishido ,  Kenji Kataoka ,  Toshisada Takechi ,  Nobuaki Nomura ,  Katsuhiro Takebayashi ,  Yoshikiyo Tamai

IPC分类号： B21B13/02 ,  B21B15/00 ,  B21B37/28 ,  B23K13/01 ,  B23K20/04

CPC分类号： B21B37/28 ,  B21B15/0085 ,  B23K13/015 ,  B21B13/023

摘要： A method and apparatus for continuously finishing hot-rolling steel strips include partially joining a rear end of a preceding steel strip and a leading end of a succeeding steel strip after the strips have passed through a rough hot-rolling step. The joint is flattened. The joint is rolled with a first stand of a tandem rolling mill. The mill is provided with a plurality of stands that includes a pair of work rolls and backup rolls and/or intermediate rolls, so that a compression stress acts at the unjointed section of the strips in the longitudinal direction of the joint while tracking the joint. Shape-control-rolling is performed on the joint with a second and succeeding stands so that a section of the steel strip other than the joint is subjected to the shape-control-rolling at all the stands.

摘要翻译： 用于连续精加工的热轧钢带的方法和装置包括在条带通过粗轧热步骤之后部分地接合前一钢带的后端和后续钢带的前端。 关节扁平。 接头用串联轧机的第一台轧制。 研磨机设置有多个支架，其包括一对工作辊和支承辊和/或中间辊，使得压缩应力在跟踪接头的同时在接头的纵向方向上在条带的非接合部分处作用。 在与第二和后续机架的接头上进行形状控制轧制，使得除了接头之外的钢带的一部分在所有机架上进行形状控制轧制。