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    PRODUCTION OF TOOL, TOOL AND DEVICE
    2.
    发明专利
    PRODUCTION OF TOOL, TOOL AND DEVICE 失效

    公开(公告)号：JP2001059102A

    公开(公告)日：2001-03-06

    申请号：JP2000201318

    申请日：2000-07-03

    Applicant: SECO TOOLS AB

    Inventor： PUIDE MATTIAS ,  BRUHN JOHNNY ,  GROENKVIST MIKAEL

    IPC: B23B51/00 ,  B21C23/10 ,  B21C23/14 ,  B22F3/02 ,  B22F3/20 ,  B22F3/22 ,  B22F5/10 ,  B22F7/00 ,  B22F7/06 ,  B23B51/06 ,  B23P15/32

    Abstract: PROBLEM TO BE SOLVED: To provide a tool composed of a circumferential face with chip grooves having high wear resistance and a core part having high toughness in high efficiency by executing extrusion while a region contg. hard material powder and moreover high in the content of a metallic binder is fed to a core part and a region low in that to a circumferential face and passing it through a chip groove forming part. SOLUTION: From a machine for extrusion to a device 20 for molding connected thereto, a mixture of the powder of WC as a hard material and Co as a binder and a resin is fed, and the molding is baked to obtain a drill having chip grooves on the circumferential face. At this time, the mixture of the material to be fed to the piercing recessed part 24 of the device 20 has a columnar bar-shape composed of a core part relatively small in WC and large in Co and an outer circumferential part large in WC and small in Co. The bar-shaped material is moreover extruded and passed through a diaphragm 27 to form a cleaning channel by a pin 35 fitted to the hole 34 of a core 33, which is passed through a mold 29 and is passed to a chip groove forming part 42 composed of a twisting ridge 43 provided on a T-shaped holding part 40 fitted to a cover 36. In this way, spiral chip grooves are easily formed in a short time at a low cost.

    7.
    发明专利
    未知

    公开(公告)号：AT490832T

    公开(公告)日：2010-12-15

    申请号：AT04706405

    申请日：2004-01-29

    Applicant: SECO TOOLS AB

    Inventor： BERGLOEW KARL-ERIK ,  PUIDE MATTIAS ,  PERSSON SVEN-ERIK ,  NORDLUND KURT

    IPC: B23C5/02 ,  B23C5/10 ,  B23C5/00

    Abstract: A milling cutter includes a body having three cutting edges formed by the body. An end of the body situated opposite the cutting edges defines a fastening end of the milling cutter. Each cutting edge extends from an outer periphery of the body substantially to a center rotational axis of the body along a substantially convexly curved path. Radially outer and radially inner ends of each cutting edge are situated axially rearwardly of an axially foremost point of the cutting edge. Each cutting edge lies on a respective imaginary sphere having a radius which has a center which that is spaced from the cutting edge in a direction toward the fastening end and spaced radially from the center axis.

    8.
    发明专利
    未知

    公开(公告)号：AT325674T

    公开(公告)日：2006-06-15

    申请号：AT04445087

    申请日：2004-08-25

    Applicant: SECO TOOLS AB

    Inventor： PUIDE MATTIAS

    IPC: B22F1/00 ,  B22F3/10 ,  B22F3/22

    Abstract: The present invention relates to a method of making a sintered body comprising one or more hard constituents in a binder phase by injection moulding or extrusion. According to the invention, the granulating agent during drying is (Poly(oxy-1,2-ethanediyl), .alpha.-hydro-.omega.-hydroxy-) and the binder system is not miscible with (Poly(oxy-1,2-ethanediyl), .alpha.-hydro-.omega.-hydroxy-). The extraction step is performed in an alcohol based solvent at a temperature of 50-78 DEG C, preferably 60-78 DEG C.

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