DIE MACHINING METHOD AND DEVICE BY V-CAD DATA
    15.
    发明公开
    DIE MACHINING METHOD AND DEVICE BY V-CAD DATA 有权
    CHIP处理方法及设备通过CAD数据

    公开(公告)号:EP1418479A4

    公开(公告)日:2006-07-05

    申请号:EP02758845

    申请日:2002-08-14

    Applicant: RIKEN

    Abstract: External data (12) consisting of the interface data of an object (1) is divided by octtree dividing into rectangular parallelepiped cells (13) having interface planes crossing perpendicularly, and V-CAD data that classify the divided cells into internal cells (13a) located inside the object and interface cells (13b) including interface surfaces is prepared, and die data and die machining data for producing the object (1) are generated from data on reference surfaces at least partially contacting the object (1)and the V-CAD data. Die machining data is used to select a plurality of machining tools (2) in the order of decreasing size according to the sizes of internal cells (13a) in a machining unit to move the machining tools (2) within the planes and the thickness directions of the die to thereby machine the die. Therefore, V-CAD data used can simplify a die-machining NC machining program and significantly reduce a die machining time.

    RAPID PROTOTYPING METHOD AND DEVICE USING V-CAD DATA
    17.
    发明公开
    RAPID PROTOTYPING METHOD AND DEVICE USING V-CAD DATA 审中-公开
    方法和原型的快速生产设备中,利用V-CAD数据

    公开(公告)号:EP1442869A4

    公开(公告)日:2008-12-24

    申请号:EP02760630

    申请日:2002-08-14

    Applicant: RIKEN

    Abstract: V-CAD data is prepared by dividing external data 12 consisting of boundary data of an object into rectangular parallelepiped cells 13 having boundary planes orthogonal to each other in accordance with octree division and separating the respective divided cells into internal cells 13a positioned on the inner side of the object and boundary cells 13b including a boundary face, and a modeling unit quantity of a prototyping material 7 is changed in accordance with sizes of the internal cell 13a and the boundary cell 13b of a modeling portion. The prototyping material 7 is a resin, lumber powder, a low-fusing-point metal, metal powder, ceramics powder or a mixture of a binder and one of these materials, and its modeling unit quantity is set in such a manner that the modeling unit quantity is smaller than a capacity of a corresponding cell and does not protrude from the boundary plane of the cell. As a result, by using the V-CAD data, a program for rapid prototyping can be simplified, and a model production time can be greatly reduced.

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