Surface covered tool
A surface coating and tool technology, applied in the field of surface coating tools, can solve the problems of limited wear resistance, small effect of improving toughness, insufficient toughness, etc., and achieve high adhesion, hardness and oxidation resistance. Improve the effect
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[0050] Tungsten carbide (WC) powder with an average crystal width of 0.8 μm is used as the main component, and the following powders are added and mixed in the following proportions: 10% by mass of metallic cobalt (Co) powder with an average crystal width of 1.2 μm, carbonized vanadium with an average crystal width of 1.0 μm (VC) powder 0.1% by mass, chromium carbide (Cr 3 C 2 ) powder 0.3% by mass, formed into the shape of an end mill (model: 6HFSM060-170-06 manufactured by Kyocera) by extrusion, and then performed binder removal treatment at 1450°C for 1 hour in a vacuum of 0.01Pa. Firing to make super hard alloy. In addition, the rake face surface of each sample was ground by shot blasting, brush grinding, or the like. In addition, the produced cemented carbide is subjected to edge processing (honing) by brush grinding.
[0051] Covering layers were formed with various compositions shown in Tables 1 and 2 on the substrates produced in this way by arc ion plating. In add...
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