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    Manufacture method of tubular member and tubular member manufactured by the same
    3.
    发明授权
    Manufacture method of tubular member and tubular member manufactured by the same 有权
    由其制造的管状构件和管状构件的制造方法

    公开(公告)号：US09403199B2

    公开(公告)日：2016-08-02

    申请号：US14354335

    申请日：2012-10-11

    Applicant: Yoshiaki Kadoma

    Inventor： Yoshiaki Kadoma

    IPC: B21D41/02 ,  B21B23/00 ,  B21C37/08 ,  B21D5/01 ,  F16L9/17 ,  B21C37/15 ,  F16L9/02 ,  F16L23/032

    CPC classification number: B21B23/00 ,  B21C37/0815 ,  B21C37/157 ,  B21D5/015 ,  B21D41/02 ,  F16L9/02 ,  F16L9/17 ,  F16L23/032

    Abstract: An expandable tube portion including slots arranged in a staggered fashion is expanded. When the expandable tube portion is expanded, the individual slots open to a cut end portion of the expandable tube portion are transformed to open in V-shape while the whole body of the expandable tube portion is transformed to a lattice configuration. Hence, the tube expansion only need to apply a working force required to bend intersections of the lattice configuration, resulting in the reduction of the working force for tube expansion. As a result, the working force for tube expansion does not open a butt connection portion of a subject matter, negating the need for previously weld bonding the butt connection portion of the subject matter.

    Abstract translation: 包括以交错方式布置的狭缝的可扩张管部分被扩大。 当可膨胀管部分膨胀时，向可扩张管部分的切割端部开口的各个槽变形为V形开口，而可扩张管部分的整个体转变为格子状。 因此，管膨胀仅需要施加弯曲格子结构的交点所需的加工力，导致管膨胀的作用力的降低。 结果，用于管膨胀的工作力不会打开主体的对接连接部分，从而不需要预先焊接接合主体的对接连接部分。

    Method for Correcting Metal tube and Corrective Press Die
    4.
    发明申请
    Method for Correcting Metal tube and Corrective Press Die 有权
    矫正金属管和矫正压模的方法

    公开(公告)号：US20090049884A1

    公开(公告)日：2009-02-26

    申请号：US11991259

    申请日：2006-10-16

    Applicant: Takeshi Umeda ,  Yoshiaki Kadoma

    Inventor： Takeshi Umeda ,  Yoshiaki Kadoma

    IPC: B21D41/00 ,  B21D37/14

    CPC classification number: B21D3/10 ,  B21C37/155 ,  B21D22/025

    Abstract: The forming recesses of a lower die and an upper die are formed to have a semi-oval profile so as to provide a forming space almost oval in section with the dies closed. The parting line between the lower die and the upper die is deviated as much as h from the major axis of the forming space toward the upper die side, and the opening width of the forming recess of the lower die is set to be slightly larger than the opening width of the forming recess of the upper die. A metal bent tube is plastic-deformed into an almost oval shape in section by closing the dies while being compressed in a peripheral direction by the lower and upper dies to eliminate spring-back caused by bending, whereby the buckling and pinching toward the outer side of the tube wall is prevented by the expanded portion of the lower die and buckling toward the inner side of the tube wall is prevented by a step difference formed by the difference in opening width between the lower die and the upper die.

    Abstract translation: 下模和上模的成形凹部形成为具有半椭圆形轮廓，以便在模具闭合的情况下提供几乎椭圆形的成形空间。 下模和上模之间的分型线从成形空间的长轴朝向上模侧偏离高达h，下模的成形凹部的开口宽度被设定为略大于 上模的成形凹部的开口宽度。 金属弯管通过封闭模具而被塑性变形为几乎椭圆形，同时通过下模具和上模具在周向方向上被压缩，以消除由弯曲引起的弹回，由此朝向外侧的弯曲和夹紧 通过下模的膨胀部分防止管壁的翘曲，并且通过由下模和上模之间的开口宽度的差异形成的阶梯差来防止管壁的内侧的弯曲。

    Method for correcting metal tube and corrective press die
    7.
    发明授权
    Method for correcting metal tube and corrective press die 有权
    金属管和矫正压模的校正方法

    公开(公告)号：US08087277B2

    公开(公告)日：2012-01-03

    申请号：US11991259

    申请日：2006-10-16

    Applicant: Takeshi Umeda ,  Yoshiaki Kadoma

    Inventor： Takeshi Umeda ,  Yoshiaki Kadoma

    IPC: B21C51/00

    CPC classification number: B21D3/10 ,  B21C37/155 ,  B21D22/025

    Abstract: The forming recesses of a lower die and an upper die are formed to have a semi-oval profile so as to provide a forming space almost oval in section with the dies closed. The parting line between the lower die and the upper die is deviated as much as h from the major axis of the forming space toward the upper die side, and the opening width of the forming recess of the lower die is set to be slightly larger than the opening width of the forming recess of the upper die. A metal bent tube is plastic-deformed into an almost oval shape in section by closing the dies while being compressed in a peripheral direction by the lower and upper dies to eliminate spring-back caused by bending, whereby the buckling and pinching toward the outer side of the tube wall is prevented by the expanded portion of the lower die and buckling toward the inner side of the tube wall is prevented by a step difference formed by the difference in opening width between the lower die and the upper die.

    Abstract translation: 下模和上模的成形凹部形成为具有半椭圆形轮廓，以便在模具闭合的情况下提供几乎椭圆形的成形空间。 下模和上模之间的分型线从成形空间的长轴朝向上模侧偏离高达h，下模的成形凹部的开口宽度被设定为略大于 上模的成形凹部的开口宽度。 金属弯管通过封闭模具而被塑性变形为几乎椭圆形，同时通过下模具和上模具在周向方向上被压缩，以消除由弯曲引起的弹回，由此朝向外侧的弯曲和夹紧 通过下模的膨胀部分防止管壁的翘曲，并且通过由下模和上模之间的开口宽度的差异形成的阶梯差来防止管壁的内侧的弯曲。

    Process for producing monolithic catalyst converter
    8.
    发明授权
    Process for producing monolithic catalyst converter 失效
    生产单片催化转化器的工艺

    公开(公告)号：US5953817A

    公开(公告)日：1999-09-21

    申请号：US991337

    申请日：1997-12-16

    Applicant: Motoki Watanabe ,  Satoru Takahashi ,  Iwao Nihashi ,  Takayuki Furuhata ,  Yoshiaki Kadoma

    Inventor： Motoki Watanabe ,  Satoru Takahashi ,  Iwao Nihashi ,  Takayuki Furuhata ,  Yoshiaki Kadoma

    IPC: B01J35/04 ,  F01N3/28 ,  B23P15/00

    CPC classification number: F01N3/2857 ,  F01N2450/02 ,  Y10T29/49345

    Abstract: A process for manufacturing a monolithic catalyst converter includes the steps of fitting a monolithic catalyst into a tube-shaped workpiece having opposite opening ends through one of the opposite opening ends, and drawing the tube-shaped workpiece at the opposite opening ends into a funnel shape by means of spinning. Thus, a monolithic catalyst converter is completed without carrying out welding. Hence, the monolithic catalyst converter can be manufactured with a high material yield (or a low scrap rate), at a reduced cost and under a good working environment, because it can be manufactured without the conventional troublesome welding operation and/or a leak-test inspection.

    Abstract translation: 制造整体式催化剂转化器的方法包括以下步骤：将整体式催化剂装配到具有相对的开口端的管状工件中，通过相对的开口端之一，将管状工件在相对的开口端拉成漏斗形状 通过旋转。 因此，在不进行焊接的情况下完成整体式催化转化器。 因此，由于可以在没有常规麻烦的焊接操作和/或泄漏的情况下制造整体式催化剂转化器，所以可以以低成本和良好的工作环境以高的材料产率（或低废料率） 检验检验。

    MANUFACTURE METHOD OF TUBULAR MEMBER AND TUBULAR MEMBER MANUFACTURED BY THE SAME
    9.
    发明申请
    MANUFACTURE METHOD OF TUBULAR MEMBER AND TUBULAR MEMBER MANUFACTURED BY THE SAME 有权
    管状构件及其制造的管状构件的制造方法

    公开(公告)号：US20140261840A1

    公开(公告)日：2014-09-18

    申请号：US14354335

    申请日：2012-10-11

    Applicant: Yoshiaki Kadoma

    Inventor： Yoshiaki Kadoma

    IPC: B21B23/00 ,  F16L9/02 ,  F16L9/17

    CPC classification number: B21B23/00 ,  B21C37/0815 ,  B21C37/157 ,  B21D5/015 ,  B21D41/02 ,  F16L9/02 ,  F16L9/17 ,  F16L23/032

    Abstract: An expandable tube portion including slots arranged in a staggered fashion is expanded. When the expandable tube portion is expanded, the individual slots open to a cut end portion of the expandable tube portion are transformed to open in V-shape while the whole body of the expandable tube portion is transformed to a lattice configuration. Hence, the tube expansion only need to apply a working force required to bend intersections of the lattice configuration, resulting in the reduction of the working force for tube expansion. As a result, the working force for tube expansion does not open a butt connection portion of a subject matter, negating the need for previously weld bonding the butt connection portion of the subject matter.

    Abstract translation: 包括以交错方式布置的狭缝的可扩张管部分被扩大。 当可膨胀管部分膨胀时，向可扩张管部分的切割端部开口的各个槽变形为V形开口，而可扩张管部分的整个体转变为格子状。 因此，管膨胀仅需要施加弯曲格子结构的交点所需的加工力，导致管膨胀的作用力的降低。 结果，用于管膨胀的工作力不会打开主体的对接连接部分，从而不需要预先焊接接合主体的对接连接部分。

    Method for forming a projection for projection welding
    10.
    发明授权
    Method for forming a projection for projection welding 失效
    用于形成用于突起焊接的突起的方法

    公开(公告)号：US5872348A

    公开(公告)日：1999-02-16

    申请号：US879305

    申请日：1997-06-19

    Applicant: Motoki Watanabe ,  Yoshiaki Kadoma ,  Satoshi Kanda ,  Satoshi Shionoya

    Inventor： Motoki Watanabe ,  Yoshiaki Kadoma ,  Satoshi Kanda ,  Satoshi Shionoya

    IPC: B21D19/00 ,  B23K11/14

    CPC classification number: B23K11/14

    Abstract: A method for forming a projection for projection welding includes the steps of: bending a workpiece such that a first end side portion located on one side of the bent portion is perpendicular to a second portion that is located on the opposite side of the bent portion, and pressing the workpiece between a punch and a V-shaped groove of a die. The pressing of the workpiece causes the first portion to the further bent toward the second portion until the inboard surface of the first portion is brought into contact with the second portion. During the pressing step, the outboard surface of the first portion is brought into contact with one surface of the groove while an end surface of the first portion is brought into contact with a second surface of the groove, with the thicknesses of the first portion and the second portion of the workpiece being plastically changed.

    Abstract translation: 一种用于形成用于突起焊接的突起的方法包括以下步骤：弯曲工件，使得位于弯曲部分的一侧上的第一端侧部分垂直于位于弯曲部分的相对侧上的第二部分， 并在冲头和模具的V形凹槽之间按压工件。 工件的挤压使得第一部分向第二部分进一步弯曲，直到第一部分的内侧表面与第二部分接触。 在压制步骤期间，第一部分的外侧表面与槽的一个表面接触，同时第一部分的端面与槽的第二表面接触，第一部分的厚度和 工件的第二部分被塑性变化。

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