公开(公告)号：US20150076215A1

公开(公告)日：2015-03-19

申请号：US14394191

申请日：2012-04-13

申请人： Kazuhiko Higai ,  Yuji Yamasaki ,  Toyohisa Shinmiya

发明人： Kazuhiko Higai ,  Yuji Yamasaki ,  Toyohisa Shinmiya

IPC分类号： B21D22/02 ,  B23K31/02

CPC分类号： B21D22/025 ,  B21C37/0803 ,  B21C37/14 ,  B21C37/155 ,  B21C37/16 ,  B21D5/086 ,  B21D11/08 ,  B21D11/14 ,  B21D47/01 ,  B23K31/02

摘要： A method and apparatus manufactures a closed structure part without flange having a curvature and welded edges along a longitudinal direction of the part and further having a varying cross-sectional shape, from two metal plates. Each of two metal plates provided with a curvature along the longitudinal direction of the plate and provided with both ends in a width direction of the plate, are press-formed such that a folding line is formed at positions corresponding to a non-welded bent edge in a cross section of the part, and stacked on each other vertically such that their bulging sides face outward. Their left ends and right ends in the width direction are mutually welded along the longitudinal direction to form welded edges.

摘要翻译： 一种方法和装置制造封闭结构部件，没有凸缘，该凸缘具有曲率并沿着该部件的纵向方向焊接边缘，并且还具有来自两个金属板的变化的横截面形状。 沿着板的纵向方向设置有沿着板的宽度方向的两端的两个金属板中的每一个被压制成使得折叠线形成在对应于非焊接弯曲边缘的位置处 在该部分的横截面中，并且彼此垂直堆叠，使得其凸出面朝外。 其宽度方向的左端和右端沿长度方向相互焊接，形成焊接边缘。

公开(公告)号：US20150082855A1

公开(公告)日：2015-03-26

申请号：US14394570

申请日：2012-04-16

申请人： Yusuke Fujii ,  Toyohisa Shinmiya ,  Yuji Yamasaki ,  Kazuhiko Higai

发明人： Yusuke Fujii ,  Toyohisa Shinmiya ,  Yuji Yamasaki ,  Kazuhiko Higai

IPC分类号： G01N3/06 ,  B21D22/00

CPC分类号： G01N3/06 ,  B21D22/00 ,  G01N3/08 ,  G01N3/28 ,  G01N2203/0064 ,  G01N2203/0066 ,  G06F17/5018 ,  G06F17/5086 ,  G06F2217/42

摘要： A method of preparing a forming limit diagram in press forming includes obtaining a forming limit curve by subjecting a surface of a metal plate to be press-formed to marking at a distance between reference points of 0.5-1.0 mm, bulging the metal plate with a punch having a top minimum curvature radius of 3-10 mm and measuring a maximum principal strain and minimum principal strain at a time of generating cracks on the surface of the metal plate at a top portion of the punch from a change of the marking.

摘要翻译： 制备压制成型中的成形极限图的方法包括：通过对金属板的表面进行冲压成形以在0.5-1.0mm的参考点之间的距离进行标记来获得成形极限曲线，将金属板与 冲头具有3-10mm的最小最小曲率半径，并且从标记的变化测量在冲头顶部处的金属板的表面上产生裂纹时的最大主应变和最小主应变。

公开(公告)号：US09669444B2

公开(公告)日：2017-06-06

申请号：US14394191

申请日：2012-04-13

申请人： Kazuhiko Higai ,  Yuji Yamasaki ,  Toyohisa Shinmiya

发明人： Kazuhiko Higai ,  Yuji Yamasaki ,  Toyohisa Shinmiya

IPC分类号： B23K37/00 ,  B23K37/02 ,  B23K37/04 ,  B23K28/00 ,  B21D22/02 ,  B21C37/08 ,  B21C37/15 ,  B23K31/02 ,  B21C37/14 ,  B21C37/16 ,  B21D5/08 ,  B21D47/01 ,  B21D11/08 ,  B21D11/14

CPC分类号： B21D22/025 ,  B21C37/0803 ,  B21C37/14 ,  B21C37/155 ,  B21C37/16 ,  B21D5/086 ,  B21D11/08 ,  B21D11/14 ,  B21D47/01 ,  B23K31/02

摘要： A method and apparatus manufactures a closed structure part without flange having a curvature and welded edges along a longitudinal direction of the part and further having a varying cross-sectional shape, from two metal plates. Each of two metal plates provided with a curvature along the longitudinal direction of the plate and provided with both ends in a width direction of the plate, are press-formed such that a folding line is formed at positions corresponding to a non-welded bent edge in a cross section of the part, and stacked on each other vertically such that their bulging sides face outward. Their left ends and right ends in the width direction are mutually welded along the longitudinal direction to form welded edges.

公开(公告)号：US20110174409A1

公开(公告)日：2011-07-21

申请号：US13120589

申请日：2009-09-24

申请人： Kazuhiko Higai ,  Yuji Yamasaki ,  Takaaki Hira ,  Katsuhiro Ochi

发明人： Kazuhiko Higai ,  Yuji Yamasaki ,  Takaaki Hira ,  Katsuhiro Ochi

IPC分类号： F16L11/00 ,  B21D22/00

CPC分类号： B21D5/10 ,  B21D39/02 ,  B21D47/01 ,  B21D51/06 ,  B21D51/10 ,  Y10T29/49922

摘要： The number of sub-parts of a closed structure part and the number of steps for manufacturing the closed structure part can be reduced and, therefore, the closed structure part can be efficiently manufactured. In a hemming press step, a punch is further lowered, and a pair of flange portions is inserted into a slit clearance. Hemming prongs are bent and each of the hemming prongs sandwiches the flange portion. The flange portion, which is one of the two flange portions, is joined to the other flange portion. At the same time, a pair of press forming surfaces of the punch presses a metal plate and performs press-forming on a pair of shoulder portions of a blank into a predetermined shape. The flange portion can be fixed to the other flange portion using the hemming prongs. The pair of shoulder portions of the blank can be press-formed into the predetermined shape.

摘要翻译： 可以减少封闭结构部分的子部件的数量和用于制造封闭结构部件的步骤数量，因此可以有效地制造封闭结构部件。 在折边加压步骤中，冲头进一步下降，并且一对凸缘部分插入狭缝间隙。 折弯叉弯曲，每个折边叉将三角法兰部分夹在中间。 作为两个凸缘部之一的凸缘部与另一个凸缘部接合。 同时，一对冲压成形面冲压金属板，并对坯料的一对肩部进行压制成形为预定的形状。 凸缘部分可以使用折边叉固定到另一个凸缘部分。 坯料的一对肩部可以压制成预定的形状。

公开(公告)号：US08844581B2

公开(公告)日：2014-09-30

申请号：US13120589

申请日：2009-09-24

申请人： Kazuhiko Higai ,  Yuji Yamasaki ,  Takaaki Hira ,  Katsuhiro Ochi

发明人： Kazuhiko Higai ,  Yuji Yamasaki ,  Takaaki Hira ,  Katsuhiro Ochi

IPC分类号： B21D22/00 ,  B21D51/10 ,  B21D39/02 ,  B21D51/06 ,  B21D47/01 ,  B21D5/10

CPC分类号： B21D5/10 ,  B21D39/02 ,  B21D47/01 ,  B21D51/06 ,  B21D51/10 ,  Y10T29/49922

摘要： The number of sub-parts of a closed structure part and the number of steps for manufacturing the closed structure part can be reduced and, therefore, the closed structure part can be efficiently manufactured. In a hemming press step, a punch is further lowered, and a pair of flange portions is inserted into a slit clearance. Hemming prongs are bent and each of the hemming prongs sandwiches the flange portion. The flange portion, which is one of the two flange portions, is joined to the other flange portion. At the same time, a pair of press forming surfaces of the punch presses a metal plate and performs press-forming on a pair of shoulder portions of a blank into a predetermined shape. The flange portion can be fixed to the other flange portion using the hemming prongs. The pair of shoulder portions of the blank can be press-formed into the predetermined shape.

摘要翻译： 可以减少封闭结构部分的子部件的数量和用于制造封闭结构部件的步骤数量，因此可以有效地制造封闭结构部件。 在折边加压步骤中，冲头进一步下降，并且一对凸缘部分插入狭缝间隙。 折弯叉弯曲，每个折边叉将三角法兰部分夹在中间。 作为两个凸缘部之一的凸缘部与另一个凸缘部接合。 同时，一对冲压成形面冲压金属板，并对坯料的一对肩部进行冲压成形为规定形状。 凸缘部分可以使用折边叉固定到另一个凸缘部分。 坯料的一对肩部可以压制成预定的形状。

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：US20110174868A1

公开(公告)日：2011-07-21

申请号：US13120227

申请日：2009-09-24

申请人： Kazuhiko Higai ,  Yuji Yamasaki ,  Takaaki Hira ,  Katsuhiro Ochi

发明人： Kazuhiko Higai ,  Yuji Yamasaki ,  Takaaki Hira ,  Katsuhiro Ochi

IPC分类号： B23K31/02 ,  B21D31/00 ,  B21D5/02 ,  B23K37/00

CPC分类号： B21D39/03 ,  B21D5/10 ,  B21D39/00 ,  B21D39/037 ,  B21D39/04 ,  B21D39/048 ,  B23K1/00 ,  B23K1/14 ,  B23K1/16 ,  B23K1/18

摘要： A method for manufacturing a closed structure part has a closed section using a blank made from a metal plate by pressing the blank using a press forming die and fixing a pair of joint ends of the blank to each other, the method including a pre-forming step of processing the blank into an interim part having a closed section corresponding to the closed structure part, a closing step of, after the pre-forming step is completed, moving the joint ends of the interim part toward each other and urging, against one of the joint ends, a concave flange processing portion formed on one of a pair of press forming surfaces of the press forming die at the edge end adjacent to the other press forming surface, and a press joining step of, after the closing step is completed, further moving the press forming die in a pressing direction, bending the one of the joint ends using a pressing force applied from the flange processing portion so that the joint end overlaps the outer surface of the other join end and a latch flange portion for latching the other joint end is formed and, simultaneously, pressing the blank using the pair of press forming surfaces and press-forming outer portions of the pair of the joint ends of the blank into predetermined shapes.

摘要翻译： 封闭结构部件的制造方法具有使用由金属板制成的坯料的封闭部分，所述坯料通过使用压制成型模具压制坯料并将坯料的一对接合端彼此固定，所述方法包括预成形 将坯料加工成具有对应于封闭结构部分的封闭部分的中间部分的步骤;在预成形步骤完成之后的封闭步骤，使临时部件的接合端朝向彼此移动，并将其推向一个 在与所述另一冲压成形面相邻的边缘端形成在所述冲压成形模具的一对冲压成形面的一个上的凹凸缘加工部，以及在所述闭合工序结束后的加压接合工序 进一步在冲压方向移动冲压成型模具，使用从凸缘加工部施加的按压力来弯曲一个接合端部，使得接合端部与另一接头的外表面重叠 形成用于锁定另一个接合端的闩锁凸缘部分，并且同时使用成对的一对压制成形表面和坯料的一对接合端部的压制成形外部部分将其预压成预定形状。

公开(公告)号：US09162272B2

公开(公告)日：2015-10-20

申请号：US13120227

申请日：2009-09-24

申请人： Kazuhiko Higai ,  Yuji Yamasaki ,  Takaaki Hira ,  Katsuhiro Ochi

发明人： Kazuhiko Higai ,  Yuji Yamasaki ,  Takaaki Hira ,  Katsuhiro Ochi

IPC分类号： B21D22/00 ,  B21D22/02 ,  B21D5/10 ,  B21D39/00 ,  B23K1/16 ,  B21D39/03 ,  B23K1/00 ,  B21D39/04 ,  B23K1/18 ,  B23K1/14

CPC分类号： B21D39/03 ,  B21D5/10 ,  B21D39/00 ,  B21D39/037 ,  B21D39/04 ,  B21D39/048 ,  B23K1/00 ,  B23K1/14 ,  B23K1/16 ,  B23K1/18

摘要： A method for manufacturing a closed structure part has a closed section using a blank made from a metal plate by pressing the blank using a press forming die and fixing a pair of joint ends of the blank to each other, the method including a pre-forming step of processing the blank into an interim part having a closed section corresponding to the closed structure part, a closing step of, after the pre-forming step is completed, moving the joint ends of the interim part toward each other and urging, against one of the joint ends, a concave flange processing portion formed on one of a pair of press forming surfaces of the press forming die at the edge end adjacent to the other press forming surface, and a press joining step of, after the closing step is completed, further moving the press forming die in a pressing direction, bending the one of the joint ends using a pressing force applied from the flange processing portion so that the joint end overlaps the outer surface of the other join end and a latch flange portion for latching the other joint end is formed and, simultaneously, pressing the blank using the pair of press forming surfaces and press-forming outer portions of the pair of the joint ends of the blank into predetermined shapes.

摘要翻译： 封闭结构部件的制造方法具有使用由金属板制成的坯料的封闭部分，所述坯料通过使用压制成型模具压制坯料并将坯料的一对接合端彼此固定，所述方法包括预成形 将坯料加工成具有对应于封闭结构部分的封闭部分的中间部分的步骤;在预成形步骤完成之后的封闭步骤，使临时部件的接合端朝向彼此移动，并将其推向一个 在与所述另一冲压成形面相邻的边缘端形成在所述冲压成形模具的一对冲压成形面的一个上的凹凸缘加工部，以及在所述闭合工序结束后的加压接合工序 进一步在冲压方向移动冲压成型模具，使用从凸缘加工部施加的按压力来弯曲一个接合端部，使得接合端部与另一接头的外表面重叠 形成用于锁定另一个接合端的闩锁凸缘部分，并且同时使用成对的一对压制成形表面和坯料的一对接合端部的压制成形外部部分将其预压成预定形状。

公开(公告)号：US20150101388A1

公开(公告)日：2015-04-16

申请号：US14394192

申请日：2012-04-13

申请人： Kazuhiko Higai ,  Yuji Yamasaki

发明人： Kazuhiko Higai ,  Yuji Yamasaki

IPC分类号： B21C37/15 ,  B21D5/01

CPC分类号： B21C37/155 ,  B21C37/0815 ,  B21C37/15 ,  B21D5/015 ,  B21D53/88

摘要： A method manufactures a closed-structure part by forming a flat plate-shaped workpiece into a closed structure including a bottom portion curved along a longitudinal direction. The method includes a first forming step of forming a plurality of first out-of-plane deformed portions and a bent portion, the first out-of-plane deformed portions being formed in a region of the workpiece corresponding to the bottom portion and arranged along the longitudinal direction, each of the out-of-plane deformed portions having a recessed shape or a protruding shape; and a second forming step of squashing the first out-of-plane deformed portions between a pad and a punch such that the region of the workpiece corresponding to the bottom portion is curved and bending bent portions by pressing the punch into a space between dies while the region of the workpiece corresponding to the bottom portion is clamped between the pad and the punch.

摘要翻译： 一种方法通过将平板状工件形成为包括沿着纵向方向弯曲的底部的封闭结构来制造封闭结构部件。 该方法包括：第一形成步骤，形成多个第一平面外变形部分和弯曲部分，第一平面外变形部分形成在工件对应于底部的区域中并沿着 纵向方向，每个平面外变形部分具有凹形或突出形状; 以及第二形成步骤，在衬垫和冲头之间挤压第一平面外变形部分，使得与底部相对应的工件的区域是弯曲的，并且通过将冲头压入模具之间的空间来弯曲弯曲部分，同时 对应于底部的工件的区域被夹紧在垫和冲头之间。

公开(公告)号：US10160018B2

公开(公告)日：2018-12-25

申请号：US14394192

申请日：2012-04-13

申请人： Kazuhiko Higai ,  Yuji Yamasaki

发明人： Kazuhiko Higai ,  Yuji Yamasaki

IPC分类号： B21C37/15 ,  B21D5/01 ,  B21C37/08 ,  B21D53/88

摘要： A method manufactures a closed-structure part by forming a flat plate-shaped workpiece into a closed structure including a bottom portion curved along a longitudinal direction. The method includes a first forming step of forming a plurality of first out-of-plane deformed portions and a bent portion, the first out-of-plane deformed portions being formed in a region of the workpiece corresponding to the bottom portion and arranged along the longitudinal direction, each of the out-of-plane deformed portions having a recessed shape or a protruding shape; and a second forming step of squashing the first out-of-plane deformed portions between a pad and a punch such that the region of the workpiece corresponding to the bottom portion is curved and bending bent portions by pressing the punch into a space between dies while the region of the workpiece corresponding to the bottom portion is clamped between the pad and the punch.