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    Press forming method and plate material expansion device used in said method
    42.
    发明授权
    Press forming method and plate material expansion device used in said method 有权

    公开(公告)号：US10717124B2

    公开(公告)日：2020-07-21

    申请号：US15510527

    申请日：2015-08-20

    Applicant: HONDA MOTOR CO., LTD.

    Inventor： Keiichiro Nakao ,  Naoki Takahashi ,  Kazuki Miyamoto

    IPC: B21D22/26 ,  B21D5/08 ,  B21D22/22 ,  B21D22/20 ,  B21D25/00 ,  B21B1/22 ,  B21B1/38

    Abstract: A press forming method is capable of improving material yield while avoiding the risk of dimensional error increase at product forming sections in blank material when carrying out press forming, and a plate material expansion device is used in this method. An end side of plate material for press forming is restricted by blank holding rollers, and pressure is applied to a middle location in the part that is restricted by a pressure roller. In this state, the plate material is transported in a rotating direction of the rollers being driven to continuously bend and extend the section receiving pressure. This bent and extended section is flattened with a flattening roller to obtain blank material wherein an end part is expanded.

    Method for the production of a strip for fastening elements
    43.
    发明授权
    Method for the production of a strip for fastening elements 有权

    公开(公告)号：US10702910B2

    公开(公告)日：2020-07-07

    申请号：US14405481

    申请日：2013-05-22

    Applicant: Hilti Aktiengesellschaft

    Inventor： Thomas Foser ,  Ho-Tien Chen

    IPC: B21D22/20 ,  B21D53/14 ,  B25C1/00 ,  F16B15/08

    Abstract: Disclosed is a method for producing a strip for fastening elements, said strip comprising a plurality of interconnected holders, each of which accommodates a shaft of a fastening element. The holders define a fastening direction in which the fastening element can be driven from the holder into a support by a fastening device. The disclosed method comprises the following steps: a) producing a continuous strip defining a longitudinal direction of the strip; b) making the holders from the strip material by means of a deep-drawing process; c) accommodating the fastening elements in the holders.

    Method of producing molded product and molded product
    44.
    发明授权
    Method of producing molded product and molded product 有权

    公开(公告)号：US10603706B2

    公开(公告)日：2020-03-31

    申请号：US15781891

    申请日：2016-11-30

    Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION

    Inventor： Masahiro Kubo ,  Yoshiaki Nakazawa ,  Hiroshi Yoshida

    IPC: B21D22/20 ,  C21D9/48 ,  C22C38/14 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C21D8/02

    Abstract: The method includes treating a metal sheet having a bcc structure and a surface satisfying conditions (a) or (b), molding the metal sheet to cause plane strain tensile deformation and biaxial tensile deformation, and allowing at least one part of the metal sheet to have a sheet thickness decrease rate of from 10% to 30%. Condition (a): an area fraction of crystal grains having a crystal orientation of 15° or less relative to a (001) plane parallel to a surface of the metal sheet is from 0.20 to 0.35. Condition (b): the area fraction of crystal grains having a crystal orientation of 15° or less relative to a (001) plane parallel to a surface of the metal sheet is 0.45 or less, the average crystal grain size thereof is 15 μm or less. The molded product satisfies conditions (a) or (b).

    Toolpack for manufacturing containers
    46.
    发明授权
    Toolpack for manufacturing containers 有权

    公开(公告)号：US10434558B2

    公开(公告)日：2019-10-08

    申请号：US15474031

    申请日：2017-03-30

    Applicant: CanForming Systems, LLC

    Inventor： James A. Sines

    IPC: B21D22/28 ,  B21D22/20 ,  B21D51/26

    Abstract: A precision high cyclic rate metal forming toolpack is disclosed for ironing processes used to produce can or other bodies and preforms of ultra-high precision. An example of the toolpack provides improved centering, dampening and force attenuation response. In an example, the toolpack may be implemented with integrated feedback communication and sensoring. An example of the toolpack also provides unified coolant distribution, including enhanced locational intelligence of infinitely variable tooling positions. An example of the toolpack also provides improved axial and longitudinal articulation for improved tool tracking and floatation. The toolpack may enable improved product quality, throughput, manufacturing efficiency, reduced costs, and reduced labor.

    Mold for hot stamping and method of manufacturing the same
    48.
    发明授权
    Mold for hot stamping and method of manufacturing the same 有权

    公开(公告)号：US10421112B2

    公开(公告)日：2019-09-24

    申请号：US14880677

    申请日：2015-10-12

    Applicant: Hyundai Motor Company

    Inventor： Seung Sang Lee

    IPC: B21D37/16 ,  B21D22/02 ,  B21D22/20 ,  B21J13/02 ,  B21D37/20 ,  C21D8/00 ,  B23P15/24

    Abstract: A mold for hot stamping is disclosed. The mold may include: a base plate configured to receive and exhaust coolant, at least one lower mold and at least one upper mold. The at least one lower mold may be mounted at a surface of the base plate, and configured to receive the coolant from the base plate. The lower mold may also have the same shape as a lower shape of a product so as to form the lower shape of the product during hot stamping. The upper mold is made of material different from that of the lower mold, coupled to an upper portion of the lower mold, has the same shape as an upper shape of the product so as to form the upper shape of the product, and is configured to receive the coolant from the lower mold such that the coolant flows in the upper mold.

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