Cutting tool
    4.
    发明授权

    公开(公告)号:US11253929B2

    公开(公告)日:2022-02-22

    申请号:US17254444

    申请日:2020-06-22

    Abstract: A cutting tool comprises a substrate and a coating layer provided on the substrate, the coating layer including a multilayer structure layer composed of a first unit layer and a second unit layer, and a lone layer, the lone layer including cubic TizAl1-zN crystal grains, an atomic ratio z of Ti in the TizAl1-zN being 0.4 or more and less than 0.55, the lone layer having a thickness with an average value of 2.5 nm or more and 10 nm or less, the multilayer structure layer having a thickness with an average value of 10 nm or more and 45 nm or less, one multilayer structure layer and one lone layer forming a repetitive unit having a thickness with an average value of 20 nm to 50 nm, a maximum value of 40 nm to 60 nm, and a minimum value of 10 nm to 30 nm.

    SINTERED POLYCRYSTALLINE CUBIC BORON NITRIDE MATERIAL

    公开(公告)号:US20210403385A1

    公开(公告)日:2021-12-30

    申请号:US16490152

    申请日:2018-03-13

    Abstract: A method of making a polycrystalline cubic boron nitride (PCBN), material is provided. The matrix precursor powder comprises an aluminium compound. The method comprises mixing matrix precursor powder comprising particles having an average particle size no greater than 250 nm, with between 30 and 40 volume percent of cubic boron nitride (cBN) particles having an average particle size of at least 4 μm, and then spark plasma sintering the mixed particles. The spark plasma sintering occurs at a pressure of at least 500 MPa, a temperature of no less than 1050° C. and no more than 1500° C. and a time of no less than 1 minute and no more than 3 minutes.

    High content PCBN compact including W—Re binder

    公开(公告)号:US10315387B2

    公开(公告)日:2019-06-11

    申请号:US15198434

    申请日:2016-06-30

    Abstract: The present invention relates to tungsten-rhenium coated compounds, materials formed from tungsten-rhenium coated compounds, and to methods of forming the same. In embodiments, tungsten and rhenium are coated on ultra hard material particles to form coated ultra hard material particles, and the coated ultra hard material particles are sintered at high temperature and high pressure.

    METALLIC MATRIX COMPOSITES SYNTHESIZED WITH UNIFORM IN SITU FORMED REINFORCEMENT

    公开(公告)号:US20190127827A1

    公开(公告)日:2019-05-02

    申请号:US16098533

    申请日:2017-05-04

    Abstract: Metallic matrix composites are synthesized by mixing a first reactant, a second reactant and a nucleator compound to obtain a reaction mixture, and heating the reaction mixture to an auto-activation temperature to initiate a self-propagating high-temperature synthesis reaction between the first and second reactants. The metallic matrix composite can include a metallic matrix and an in situ formed reinforcement. The reinforcement can be formed of discrete particles substantially uniformly dispersed within the metallic matrix. Each of the particles can have a reinforcement constituent disposed about a core formed of the nucleator compound.

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