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    • 5. 发明专利
    • Cutting insert and cutting insert manufacturing method
    • 切割插件和切割插件制造方法
    • JP2014121772A
    • 2014-07-03
    • JP2013239267
    • 2013-11-19
    • Mitsubishi Materials Corp三菱マテリアル株式会社
    • TAKAHASHI HIDESHIISHIKAWA YOICHI
    • B23C5/20B22F7/00B23B27/14B23P15/28C22C1/05
    • B22F7/06B22F2005/001B23B27/145B23B2200/0495B23B2200/161B23B2200/204B23B2200/286B23B2200/3681B23B2205/12B23C5/109B23C5/207B23C2200/0483B23C2200/081B23C2200/161B23C2200/168B23C2200/205B23C2200/286B23C2210/168
    • PROBLEM TO BE SOLVED: To impart sufficient strength to a sintered cutting insert and improve seating stability of seating the cutting insert to an insert installation seat while improving positioning accuracy of stuck surfaces of a plurality of split bodies.SOLUTION: A cutting insert includes a polygonal plate-like insert main body having reverse-symmetric front and back surfaces. The insert main body is formed by sintering a plurality of plate-like split bodies 20 made of green compact in a state of being stuck to each other in an insert central axis C direction of the insert main body. On a stuck surface 21 of each split body 20, crest portions 22 formed to protrude in the insert central axis C direction and trough portions 23 formed to retreat in the insert central axis C direction are arranged to be adjacent to each other along side corners of a polygon, a pair 24 of the crest portion 22 and the trough portion 23 are provided per side corner. The stuck surfaces 21 of these split bodies 20 are bonded to each other while the opposing crest portions 22 and the trough portions 23 of the split bodies 20 stuck to each other are engaged with each other.
    • 要解决的问题:为了赋予烧结的切削刀片足够的强度,并提高将切削刀片安置在刀片安装座上的就座稳定性,同时提高多个分割体的卡定表面的定位精度。解决方案:切削刀片包括多边形 板状插入件主体具有反向对称的前后表面。 插入主体通过在插入件主体的插入中心轴线C方向上彼此粘合的状态下烧结由生坯构成的多个板状分割体20而形成。 在每个分割体20的卡合表面21上,形成为在插入件中心轴线C方向上突出的波峰部分22和形成为在插入件中心轴线C方向上退回的凹槽部分23布置成彼此相邻, 在每个侧角设置多边形,顶部22的一对24和槽部23。 这些分割体20的卡合表面21彼此接合,同时彼此粘合的分开体20的相对的峰部22和谷部23彼此接合。