公开(公告)号：US10010917B2

公开(公告)日：2018-07-03

申请号：US14400753

申请日：2012-05-17

申请人： Koichi Sato ,  Masahiro Kubo ,  Masaaki Mizumura ,  Tohru Yoshida

发明人： Koichi Sato ,  Masahiro Kubo ,  Masaaki Mizumura ,  Tohru Yoshida

IPC分类号： B21D22/10 ,  B21C37/00 ,  B21D22/20 ,  B21D26/021 ,  C21D1/78 ,  C21D7/02 ,  C21D7/13 ,  C21D8/00 ,  C21D9/46 ,  C21D11/00 ,  G01N3/18 ,  B21C51/00 ,  B21D22/02 ,  B21D37/16

CPC分类号： B21C37/00 ,  B21C51/00 ,  B21D22/022 ,  B21D22/208 ,  B21D26/021 ,  B21D37/16 ,  C21D1/78 ,  C21D7/02 ,  C21D7/13 ,  C21D8/005 ,  C21D9/46 ,  C21D11/00 ,  G01N3/18 ,  G01N2203/0017 ,  G01N2203/0092 ,  G01N2203/0226

摘要： Provided is a plastic working method of steel including austenite, the method including: analyzing a strain ratio βx of an estimated breaking point which is specified during plastic deformation of the steel; heating a steel such that a local temperature Tlocal is within a temperature range indicated by the following expression 1, when Tβx represents a strain-induced-transformation-maximum-ductility-temperature in the unit of ° C. for the strain ratio βx, σLβx represents the standard deviation of a fitted curve of critical equivalent strain which depends on the strain ratio βx on a lower temperature side than Tβx, σHβx represents the standard deviation of a fitted curve of critical equivalent strain which depends on the strain ratio βx on a higher temperature side than Tβx, and Tlocal represents a local temperature in the unit of ° C. of the estimated breaking point; and plastically deforming the steel after heating: Tβx−2×σLβx≤Tlocal≤Tβx+1.25×σHβx  (Expression 1).

公开(公告)号：US09539630B2

公开(公告)日：2017-01-10

申请号：US14002305

申请日：2012-03-05

申请人： Masaaki Mizumura ,  Koichi Sato ,  Satoshi Shirakami

发明人： Masaaki Mizumura ,  Koichi Sato ,  Satoshi Shirakami

IPC分类号： B21D5/02 ,  B21D5/00 ,  C21D7/10 ,  C21D7/13 ,  C21D1/09 ,  C21D1/30 ,  C21D1/32 ,  B21D35/00

CPC分类号： B21D5/02 ,  B21D5/008 ,  B21D35/005 ,  C21D1/09 ,  C21D1/30 ,  C21D1/32 ,  C21D7/10 ,  C21D7/13 ,  C21D2221/10 ,  Y10T29/49826

摘要： A method for bending a sheet metal comprises: a hardness adjustment process wherein a blank (10), including a high-hardness region (11) and a low-hardness region (12) having a lower hardness than the high hardness region (11), is formed by changing the hardness of at least a part of a sheet metal; and a bending process wherein a product (20) is formed by bending low-hardness region (12) of blank (10).

摘要翻译： 一种用于弯曲金属板的方法包括：硬度调节过程，其中包括具有比高硬度区域（11）更低的硬度的高硬度区域（11）和低硬度区域（12）的坯料（10） 通过改变金属板的至少一部分的硬度而形成; 和弯曲过程，其中通过弯曲坯料（10）的低硬度区域（12）形成产品（20）。

公开(公告)号：US09486851B2

公开(公告)日：2016-11-08

申请号：US12449616

申请日：2007-10-16

申请人： Masaaki Mizumura ,  Yukihisa Kuriyama

发明人： Masaaki Mizumura ,  Yukihisa Kuriyama

IPC分类号： B21D7/06

CPC分类号： B21D7/06 ,  B21D7/066 ,  B21D9/04

摘要： The present invention provides a new bending apparatus and bending method of a tube material which makes it possible to achieve all of bending by a large bending radius not requiring large scale equipment or die, bending resistant to wrinkling and buckling at an inner side of the bending, and bending with a high productivity, that is, a ram bending apparatus using a punch 12 and a set of rolls 13, 13 for three-point bending of a tube material wherein the punch 12 has a groove 12a of a width of the width of a circular tube 11 or more and wherein the set of rolls 13, 13 are supported by a frame 14. The rolls 13, 13 can freely move on the frame 14 in directions away from each other in a state contacting the punch 12. The frame 14 has a hollow space 14a enabling free movement of the descending punch 12 and the circular tube 11 bent along with this during the bending of the circular tube 11.

摘要翻译： 本发明提供了一种管材的新的弯曲装置和弯曲方法，其能够通过不需要大型设备或模具的大的弯曲半径来实现所有弯曲，并且能够抵抗弯曲内侧的起皱和弯曲 ，并且以高生产率弯曲，即使用冲头12的冲头弯曲装置和用于管材三点弯曲的一组辊13,13，其中冲头12具有宽度为宽度的凹槽12a 的圆管11或更多，并且其中一组辊13,13由框架14支撑。辊13,13可以在与冲头12接触的状态下在彼此远离的方向上在框架14上自由移动。 框架14具有中空空间14a，使得下降的冲头12和圆形管11能够在圆形管11的弯曲期间随之一起弯曲而自由运动。

公开(公告)号：US08763438B2

公开(公告)日：2014-07-01

申请号：US13138571

申请日：2010-03-03

申请人： Koichi Sato ,  Masaaki Mizumura ,  Tohru Yoshida ,  Eiji Isogai

发明人： Koichi Sato ,  Masaaki Mizumura ,  Tohru Yoshida ,  Eiji Isogai

IPC分类号： B21D5/08 ,  B21D7/022

CPC分类号： B21D5/083 ,  B21D5/08

摘要： The present invention has its object to provide an efficient, general use shaping technique for forming high strength sheet metal into a three-dimensionally complicated shape. Further, the present invention provides a working apparatus for shaping sheet metal comprising a die (also called a “punch”) which has a shape suitable for a shape of shaped sheet metal, a plurality of rolls which grip sheet metal (H) with the die to shape the sheet metal, roll movement mechanisms which makes the rolls independently move in a horizontal direction and make them independently ascend or descend in a vertical direction, and a roll angle setting mechanism which can change an angle by which the rolls are pressed against the die.

摘要翻译： 本发明的目的是提供一种用于将高强度金属片形成为三维复杂形状的有效的一般使用成形技术。 此外，本发明提供了一种用于成形金属板的加工装置，其包括具有适合成形金属板形状的模具（也称为“冲头”），多个辊，其夹持金属板（H） 模具成形钣金，使辊子在水平方向独立地移动并使它们在垂直方向上独立上升或下降的辊移动机构，以及可以改变辊被压靠的角度的侧倾角设定机构 死了

公开(公告)号：US20100122748A1

公开(公告)日：2010-05-20

申请号：US12450925

申请日：2008-04-18

申请人： Masaaki Mizumura ,  Yukihisa Kuriyama

发明人： Masaaki Mizumura ,  Yukihisa Kuriyama

IPC分类号： F16L9/00

CPC分类号： B21D26/033 ,  B60G2206/012 ,  B60G2206/8107

摘要： A hydroformed product obtained by integrally working a metal pipe material by cold plastic working, which product (x) has a bent part at least at one location, (y1) has, at least at one location of the bent part, an expanded part of dimensions of a direction toward the outer side (or inner side) of the bend in a cross-section vertical to a pipe axis and a direction vertical to that direction of at least 1.35× of a circle equivalent diameter of an end of the metal pipe, and (z1) has an inner side (outer side) of the bent part of substantially the same radius of curvature.

摘要翻译： 通过冷塑性加工一体地加工金属管材而获得的液压成型产品，所述产品（x）至少在一个位置具有弯曲部分（y1），至少在弯曲部分的一个位置具有膨胀部分 在垂直于管轴线的横截面中的弯曲部的外侧（或内侧）的方向和与该方向垂直的方向的尺寸为金属管的端部的圆当量直径的至少1.35× 和（z1）具有基本上相同的曲率半径的弯曲部分的内侧（外侧）。

公开(公告)号：US20130088033A1

公开(公告)日：2013-04-11

申请号：US13703735

申请日：2011-06-17

申请人： Manabu Wada ,  Masaaki Mizumura ,  Koichi Sato

发明人： Manabu Wada ,  Masaaki Mizumura ,  Koichi Sato

IPC分类号： B62D27/02

CPC分类号： B62D27/023 ,  B21D26/037 ,  B21D53/88 ,  B62D21/00 ,  B62D21/08 ,  B62D23/005 ,  B62D25/04 ,  B62D25/2036 ,  B62D33/044 ,  Y10T29/49622

摘要： A structural hydroformed joint member has projecting portions (30a, 30b) formed integrally on an outer peripheral face of a hollow main tube part (20) by hydroforming an element tube with an outside diameter D. In this case, both intersecting planes (35a, 35b), which are projecting planes of end faces (33a, 33b) of the projecting portions (30a, 30b) toward the main tube part (20), share a plane perpendicular to the main axis (40) of the main tube part (20) only in portions (36a, 36b) of the intersecting planes (35a, 35b). At that time, by setting areas of the portions (36a, 36b) to 30% or more and 90% or less relative to an area of each of the intersecting planes (35a, 35b), a projecting height of each of the projecting portions (30a, 30b) is 0.3 D or higher for functioning as a joint.

摘要翻译： 结构液压成形接头构件具有通过对具有外径D的元件管进行液压成形而一体地形成在中空主管部（20）的外周面上的突出部（30a，30b）。在这种情况下，两个相交平面（35a， 35b）是突出部（30a，30b）朝向主管部（20）的端面（33a，33b）的突出面共享与主管部的主轴（40）垂直的平面（ 20）仅在相交平面（35a，35b）的部分（36a，36b）中。 此时，通过将各部分（36a，36b）的面积相对于各交叉面（35a，35b）的面积设定为30％以上且90％以下，每个突出部分的突出高度 （30a，30b）为0.3D以上，用作接头。

公开(公告)号：US08381560B2

公开(公告)日：2013-02-26

申请号：US12450927

申请日：2008-04-18

申请人： Masaaki Mizumura ,  Yukihisa Kuriyama

发明人： Masaaki Mizumura ,  Yukihisa Kuriyama

IPC分类号： B21D39/20

CPC分类号： B21D26/033 ,  B21D26/043

摘要： The present invention provides a hydroforming method able to increase the expansion ratio to obtain a complicated shape hydroformed product and able to reduce the number of steps of work, that is, a hydroforming method loading a metal pipe into a divided mold, clamping the mold, then applying an internal pressure and pushing force in the pipe axial direction to said metal pipe, comprising, in a first hydroforming step, expanding said metal pipe in one direction of said metal pipe cross-section to obtain an intermediate product having a circumferential length of 90% to 100% of the circumferential length of the product shape in all of the expanded part in the pipe axial direction and having a height greater than the height of the product in said one direction and at least part of the pipe axial direction, then, in a second hydroforming step, reducing the height in the one direction of said intermediate product in all or part of the pipe axial direction while shaping the product to the final product shape. Further, in the case of a shape including bending, a bending step is performed between the above first hydroforming step and second hydroforming step.

摘要翻译： 本发明提供一种液压成型方法，其能够增加膨胀比以获得复杂形状的液压成型产品，并且能够减少工作步骤的数量，即将金属管装入分模中的液压成形方法，夹紧模具， 然后在所述金属管的管轴向上施加内部压力和推力，包括在第一液压成形步骤中，使所述金属管沿所述金属管横截面的一个方向膨胀，以获得周向长度为 在管轴方向上的所有扩张部分中的产品形状的圆周长度的90％至100％，并且具有高于所述一个方向上的产品的高度和管轴向方向的至少一部分的高度，然后 在第二液压成形步骤中，在产品全部或部分管轴向方向上减小所述中间产品的一个方向的高度，同时将产品成形为fi nal产品形状。 此外，在包括弯曲的形状的情况下，在上述第一液压成形步骤和第二液压成形步骤之间执行弯曲步骤。

公开(公告)号：US08001819B2

公开(公告)日：2011-08-23

申请号：US12311752

申请日：2007-10-26

申请人： Masaaki Mizumura ,  Koichi Sato ,  Yukihisa Kuriyama

发明人： Masaaki Mizumura ,  Koichi Sato ,  Yukihisa Kuriyama

IPC分类号： B21D35/00 ,  B21D26/02

CPC分类号： B21D26/035 ,  B21D28/28 ,  B23P19/064 ,  Y10T29/49805 ,  Y10T29/49925 ,  Y10T29/49938

摘要： The present invention was made with the object of eliminating the short pipe member when attaching a bolting nut to a hydroformed part, preventing an increase in the difficulty of hydroforming for attaching the nut, extending the nut length so as to enable sufficient strength at the time of bolting, and enabling application even to thin wall hydroformed parts and comprises inserting a metal pipe into a split mold having a pierce punch able to be moved perpendicular to an axis of the inserted metal pipe or in a slanted direction, having a front part narrower than a center part, and having around the front part a nut having an inside diameter larger than an outside diameter of the front part and smaller than an outside diameter of the center part; hydroforming it; then making the pierce punch advance to pierce part of the hydroformed part and pushing the nut by a center part arranged behind the nut and embedding the nut in the metal pipe.

摘要翻译： 本发明的目的是为了在将螺栓螺母连接到液压成型部件时消除短管部件，防止加压螺母的液压成形难度增大，延长螺母长度，以便在此时能够获得足够的强度 甚至能够应用于薄壁液压成形部件，并且包括将金属管插入具有能够垂直于插入的金属管的轴线或沿倾斜方向移动的穿孔冲头的分割模具中，其具有前部较窄 并且在前部周围具有内径大于前部外径的内径小于中心部的外径的螺母; 液压成型 然后使穿孔冲头前进，刺穿部分液压成型部件，并通过布置在螺母后面的中心部分推动螺母，并将螺母嵌入金属管中。

公开(公告)号：US20100186473A1

公开(公告)日：2010-07-29

申请号：US12452676

申请日：2008-07-18

申请人： Masaaki Mizumura ,  Koichi Sato ,  Yukihisa Kuriyama

发明人： Masaaki Mizumura ,  Koichi Sato ,  Yukihisa Kuriyama

IPC分类号： B21J5/04

CPC分类号： B21D26/041 ,  B21D22/025 ,  B21D26/033 ,  B21D26/043 ,  Y10T29/49805

摘要： The object is to raise the yield by greatly eliminating the disposed amounts of the tube ends, prevent wrinkles due to closing the mold while applying internal pressure, cutting the plurality of steps of hydroforming and pre-processing of the tube ends, cutting the mold costs by simplifying the mold mechanism, and obtaining a hydroformed product formed with a flange along its entire length.For this reason, the present invention provides a hydroforming method which places a metal tube to a lower mold in the state with the tube ends sticking out from it and injects a pressurizing fluid into the metal tube through the inside of a seal punch and gradually presses seal punches against tube ends of the metal tube to apply a predetermined pressing force and fill the inside of the metal tube with the pressurizing fluid to apply a predetermined internal pressure, next, in the state with the internal pressure and pressing force applied, lowers the upper mold and closes the mold so as to deform the tube and end the processing in the state with the tube ends sticking out from the mold, and, further, boosting the internal pressure in the metal tube after closing the mold and ending the forming operation and a hydroformed product processed using these methods and having a flange across the entire length in the longitudinal direction.

摘要翻译： 目的是通过大大消除管端部的设置量来提高产量，防止由于在施加内压的同时关闭模具而产生的褶皱，切割多个步骤的液压成型和管端的预处理，切割模具成本 通过简化模具机构，并获得沿其整个长度形成有凸缘的液压成型产品。 为此，本发明提供了一种液压成形方法，其中，在管端部从其上伸出的状态下将金属管放置在下模上，并通过密封冲头的内部将加压流体注入金属管，并逐渐压入 对金属管的管端密封冲压以施加预定的压力，并用加压流体填充金属管的内部以施加预定的内部压力，接下来，在施加内部压力和压力的状态下，降低 上模并关闭模具以使管变形，并且在管端从模具伸出的状态下结束处理，并且进一步在关闭模具之后提高金属管内的压力并结束成形操作 以及使用这些方法加工的液压成型产品，并且在纵向方向上在整个长度上具有凸缘。

公开(公告)号：US20100011832A1

公开(公告)日：2010-01-21

申请号：US12449616

申请日：2007-10-16

申请人： Masaaki Mizumura ,  Yukihisa Kuriyama

发明人： Masaaki Mizumura ,  Yukihisa Kuriyama

IPC分类号： B21D9/04

CPC分类号： B21D7/06 ,  B21D7/066 ,  B21D9/04

摘要： The present invention provides a new bending apparatus and bending method of a tube material which makes it possible to achieve all of bending by a large bending radius not requiring large scale equipment or die, bending resistant to wrinkling and buckling at an inner side of the bending, and bending with a high productivity, that is, a ram bending apparatus using a punch 12 and a set of rolls 13, 13 for three-point bending of a tube material wherein the punch 12 has a groove 12a of a width of the width of a circular tube 11 or more and wherein the set of rolls 13, 13 are supported by a frame 14. The rolls 13, 13 can freely move on the frame 14 in directions away from each other in a state contacting the punch 12. The frame 14 has a hollow space 14a enabling free movement of the descending punch 12 and the circular tube 11 bent along with this during the bending of the circular tube 11.

摘要翻译： 本发明提供了一种管材的新的弯曲装置和弯曲方法，其能够通过不需要大型设备或模具的大的弯曲半径来实现所有弯曲，并且能够抵抗弯曲内侧的起皱和弯曲 ，并且以高生产率弯曲，即使用冲头12的冲头弯曲装置和用于管材三点弯曲的一组辊13,13，其中冲头12具有宽度为宽度的凹槽12a 的圆管11或更多，并且其中一组辊13,13由框架14支撑。辊13,13可以在与冲头12接触的状态下在彼此远离的方向上在框架14上自由移动。 框架14具有中空空间14a，使得下降的冲头12和圆形管11能够在圆形管11的弯曲期间随之一起弯曲而自由运动。