Method of making a sintered body, a powder mixture and a sintered body
    2.
    发明公开
    Method of making a sintered body, a powder mixture and a sintered body 有权
    韦尔法罕zur Herstellung eines gesintertenKörpers,Pulvermischung und gesinterterKörper

    公开(公告)号:EP1925383A2

    公开(公告)日:2008-05-28

    申请号:EP07119560.6

    申请日:2007-10-30

    IPC分类号: B22F1/00 C22C29/02

    摘要: Method of producing a sintered body comprising the steps of mixing one or more powders forming hard constituents with powders forming a binder phase comprising cobalt powder where the cobalt powder comprises cobalt having mainly a fcc-structure defined as the peak height ratio between the Co-fcc(200)/Co-hcp(101) being ≥3/2, as measured between the baseline and maximum peak height, measured by XRD with a 20/0 focusing geometry and Cu-Kα radiation. The present invention also relates to a ready-to-press powder comprising cobalt having mainly an fec-structure and where the cobalt powder has a grain size (FSSS) of 0.2-2.9 µm. The present invention also relates to sintered bodies made according to the method. The sintered bodied according to the present invention have reduced porosity and less crack formation.

    摘要翻译: 制造烧结体的方法包括以下步骤:将一种或多种形成硬组分的粉末与形成包含钴粉末的粘结相的粉末混合,其中钴粉末包含主要具有fcc结构的钴,其定义为Co-fcc的峰高比 (200)/ Co-hcp(101)为‰¥3/2,通过XRD与20/0聚焦几何和Cu-K±辐射测量,在基线和最大峰高之间测量。 本发明还涉及包含主要具有fec结构的钴并且钴粉末具有0.2-2.9μm的晶粒尺寸(FSSS)的即用粉末粉末。 本发明还涉及根据该方法制造的烧结体。 根据本发明的烧结体具有减小的孔隙率和较少的裂纹形成。

    Coated cutting tool
    7.
    发明公开
    Coated cutting tool 审中-公开
    涂层刀具

    公开(公告)号:EP1988190A2

    公开(公告)日:2008-11-05

    申请号:EP08103610.5

    申请日:2008-04-18

    摘要: The present invention relates to a cutting tool for metal machining with improved wear properties, comprising a cutting tool substrate of cemented carbide, cermet, ceramics or a super hard material, and a wear resistant coating, wherein the wear resistant coating comprises a PVD Ti-Si-C-N layer, and a method of making thereof.

    摘要翻译: 本发明涉及一种用于具有改善的磨损性能的金属加工的切削工具,其包括硬质合金,金属陶瓷,陶瓷或超硬材料的切削工具基体和耐磨涂层,其中耐磨涂层包括PVD Ti- Si-CN层及其制造方法。

    Cubic boron nitride cutting tool insert with excellent resistance to chipping and edge fracture
    8.
    发明公开
    Cubic boron nitride cutting tool insert with excellent resistance to chipping and edge fracture 有权
    立方氮化硼与阻力的切削刀具刀片,取消和角断裂

    公开(公告)号:EP1780186A2

    公开(公告)日:2007-05-02

    申请号:EP06021400.4

    申请日:2006-10-12

    发明人: Dahl, Leif

    摘要: A cutting tool insert which can, for example, be used for machining of hardened steel, hot and cold working tool steel, die steel, case hardened steel, high speed steel and ductile grey cast iron and composed of a composite comprising a cBN-phase and a binder phase comprising a titaniumcarbonitride phase and a TiB 2 phase is disclosed. In the XRD pattern from the composite using CuKa-radiation, the peak height ratio of the strongest (101) TiB 2 peak and the strongest cBN (111) peak is less than 0.06, the (220) peak from the titanium carbonitride phase in the XRD-pattern intersects both vertical lines of the PDF-lines of TiC (PDF 32-1383) and TiN (PDF 38-1420) and the lowest intersected point height is at least 0.15 of the maximum (220) peak height of the ceramic binder phase. The insert is made by powder metallurgical methods milling, pressing and sintering, the sintering being performed at lowest possible temperature for shortest possible time necessary to obtain a dense structure.

    摘要翻译: 一种切削工具刀片哪位可以,例如,被用于淬火钢,热水和冷加工工具钢,钢,表面硬化钢,高速钢和球墨铸铁灰铸铁的机械加工和复合材料,包括一个的cBN相构成 和粘合剂相包含titaniumcarbonitride相和的TiB 2相是游离缺失盘。 在从使用CuKα辐射复合物中的X射线衍射图案,最强(101)的TiB 2峰的峰高比和最强的cBN(111)峰是小于0.06,从所述钛的碳氮化相的(220)峰 XRD图案相交的TiC(PDF 32-1383)和TiN(PDF 38-1420)的PDF-线的两个垂直线和最低相交点的高度是所述陶瓷粘合剂的最大(220)峰高度的至少00:15 阶段。 所述插入件通过粉末冶金方法研磨,压制和烧结制造,烧结正在执行在尽可能低的温度下短时间内必要获得致密的结构。