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6 条记录 (耗时 0.012 秒)

    SUCCESSIVE MOLDING METHOD
    1.
    发明公开
    SUCCESSIVE MOLDING METHOD 审中-公开

    公开(公告)号：EP3819038A1

    公开(公告)日：2021-05-12

    申请号：EP18925561.5

    申请日：2018-07-06

    申请人： NISSAN MOTOR CO., LTD. ,  RENAULT s.a.s.

    发明人： UCHIYAMA, Noriko ,  MIWA, Hirotaka ,  NAKAGAWA, Shigeyuki ,  MURAKAMI, Ryou

    IPC分类号： B21D22/18

    摘要： A method for incrementally forming includes: preparing a tool T disposed on one side of a metal plate W, a fixing jig 1 to hold a periphery of the metal plate W, and a template P1 including a molded edge E that follows at least a part of a contour of a part to be processed F; arranging the template P1 on the other side of the metal plate W; holding the periphery of the metal plate W together with the template P1 by the fixing jig 1 to fix the metal plate W and the template PI; and moving the tool T while pressing the tool T against the metal plate W, to incrementally form the part to be processed F having a three-dimensional shape of the metal plate W.
    The method enables to form the part to be processed F in high precision with no use of a molding die and thus, is effective in bringing about reducing cost of equipment and manufacturing.

    METHOD FOR MANUFACTURING CYLINDER BLOCK, AND CYLINDER BLOCK
    3.
    发明公开
    METHOD FOR MANUFACTURING CYLINDER BLOCK, AND CYLINDER BLOCK 有权
    制造气缸体的方法和气缸体

    公开(公告)号：EP2796698A1

    公开(公告)日：2014-10-29

    申请号：EP12859226.8

    申请日：2012-11-05

    申请人： Nissan Motor Co., Ltd

    发明人： HAYASHI, Mitsuo ,  MIYAMOTO, Yoshiaki ,  TERADA, Daisuke ,  SHIOTANI, Eiji ,  NOSHI, Yoshitsugu ,  TANIGUCHI, Kazuaki ,  WATANABE, Takafumi ,  SUGIYAMA, Kiyokazu ,  MIWA, Hirotaka

    IPC分类号： F02F1/00 ,  C23C4/02

    CPC分类号： F02F1/00 ,  C23C4/02 ,  C23C4/14 ,  C23C4/16 ,  F02F1/102 ,  Y10T29/49272

    摘要： In a method for manufacturing a cylinder block provided with cylinder bores, the cylinder block is held by a clamp device, stress is generated in the cylinder block by a holding force of the clamp device to duplicate deformations of the cylinder bores after assembling bearing caps thereon, boring is carried out with the cylinder bores deformed in a condition where the stress is generated, and a thermally sprayed coating is formed, after the boring, on each inner surfaces of the cylinder bores deformed in the condition where the stress is generated. According to the method for manufacturing a cylinder block, superior cylindricity, after assembling the bearing caps, of the cylinder bores on each of which the thermally sprayed coating is formed can be brought, and workability degradation of finishing works (honing) for each inner surface of the cylinder bores (thermally sprayed coatings) can be restricted.

    摘要翻译： 在用于制造具有气缸孔的气缸体的方法中，通过夹持装置保持气缸体，通过夹持装置的保持力在气缸体中产生应力，以在其上装配轴承盖之后复制气缸孔的变形 在产生应力的状态下使缸孔变形，并在产生应力的状态下变形的缸膛的各内表面上形成喷镀后的喷镀膜。 根据本发明的气缸体的制造方法，在组装轴承盖之后，可以形成形成有喷镀膜的缸孔的优异的圆柱度，并且可以降低每个内表面的精加工（珩磨）的可加工性 的缸孔（热喷涂层）会受到限制。

    SEQUENTIAL MOLDING TOOL
    4.
    发明公开
    SEQUENTIAL MOLDING TOOL 审中-公开

    公开(公告)号：EP4151332A1

    公开(公告)日：2023-03-22

    申请号：EP20935308.5

    申请日：2020-05-14

    申请人： NISSAN MOTOR CO., LTD. ,  Renault s.a.s

    发明人： UCHIYAMA, Noriko ,  MIWA, Hirotaka ,  WATANABE, Hidenori ,  NANBU, Toshikazu

    IPC分类号： B21D22/18

    摘要： An incremental forming tool of the present invention includes a holding portion attached to an incremental forming apparatus and a free curved surface part for pressing a metal plate.
    The free curved surface part is made of at least a hard metal base material and a surface of the free curved surface part is covered with a hard film.
    The surface of the hard film has an Rpk of 0.15 µm or less, the Rpk is defined by JIS B 0671 and is calculated from a material ratio curve of a roughness curve, and has an Ra of 0.2 µm or less, the Ra is defined by JIS B 0601 and is calculated from a roughness curve. Therefore, a molded product having a smooth worked surface with no roughness can be produced without adding any extra equipment for preventing adhesion.