Abstract:
PROBLEM TO BE SOLVED: To provide a coated cutting tool with improved performance for milling of steels. SOLUTION: A coated super alloy insert (cutting tool) is particularly useful for dry or wet milling of steels. The coated cutting tool for milling comprises a super alloy body which includes WC, NbC, TaC, and a W-alloyed Co binder phase, and a coating which includes an innermost layer of TiC x N y O z with equiaxed grains, a layer of TiC x N y O z with columnar grains and a layer of αAl 2 O 3 . COPYRIGHT: (C)2009,JPO&INPIT
解决方案:涂层超级合金刀片(切削刀具)特别适用于钢的干法或湿磨。 用于研磨的涂覆切削工具包括超合金体,其包括WC,NbC,TaC和W合金Co粘结相,以及包括最内层的TiC SB> N 具有等轴晶粒的TiC SB> Z SB>具有柱状的TiC SB> N SB> O Z SB> 颗粒和一层αAl 2 SB> 3 SB>。 版权所有(C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an insert for milling to provide various wear types with excellent cutting performance during high speed cutting of an alloy steel and a tool steel and milling of a cured steel. SOLUTION: A cutting tool insert is formed of a body made of cemented carbide and a covering film and especially suitable for high speed milling for an alloy steel and a tool steel and milling for milling a cured steel. The composition of the cemented alloy body is 7.9-8.6 wt.% preferably 8.0-8.5 wt.% Co, 0.5-2.1 wt.% in a total or preferably 0.7-1.8 wt.% cubic carbide of Ta and Nb, 1.0-12.0 preferably 1.5-11.4 wt.%, average chip length 0.4-0.9 μm preferably 0.5-0.8 μm WC, binder phase contains W corresponding to S value 0.81-0.95 preferably 0.82-0.94. The covering film is formed of Ti x Al y N layer, 0.8≤x+y≤1.2, 0.25≤x/y≤1.45 preferably 0.33≤x/y≤1.1, a film thickness is 0.5-7 μm preferably 1-6 μm, and columnar grains are contained. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a coated cemented carbide insert (cutting tool) useful for wet or dry milling of steel particularly under high cutting speed, milling of hardened steel, and copy milling with a rapid feed of tool steel. SOLUTION: The cutting tool insert is characterized by cemented carbide body including WC, NbC and TaC, a W alloy Co binder phase, and coating including an innermost layer of TiC x N y O z forming equi-axial particles, a layer of TiC x N y O z forming pillar-shaped particles, and a layer of α-Al 2 O 3 . COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a coating insert provided with a reinforced surface area in the only one part of a base material, in regard to a coating cemented carbide cutting tool insert to be used for rough finishing, intermediate finishing and final finishing of a material such as steel and cast iron, especially becoming short chips thereof. SOLUTION: The coating cutting tool insert for metal-machining a material, especially becoming short chip machining comprises a tungsten carbide base material having a binder phase enriched surface area, and a cutting blade is formed by crossing at least one rake face and at lest one clearance surface. The binder phase enriched surface area is at least partially missed in the rake face comprising at least one part of a surface extended from the cutting blade. As a result, optimal combination of cutting blade strength and abrasion resistance is achieved. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide an insert for milling, which has improved cutting performance for various types of wear in high speed milling of low/medium alloy steel and in milling of hardened steel. SOLUTION: The insert is composed of a body made of cemented carbide and a coating film. The composition of the cemented carbide body is as follows; Co: 7.9 to 8.6 wt.%, Ta and Nb: 0.5 to 2.1 wt.% in the sum total of cubic carbide, the ratio of Ta wt.% to Nb wt.%: 1.0 to 12.0, the remainder: WC having the average section length from 0.4 to 0.9 μm, the binder phase of which WC includes W corresponding to S value from 0.81 to 0.95. The coating film includes a most inside layer of TiCxNyOz: wherein 0.7≤x+y+z≤1, preferably z x and z 0.1 μm, a TiCxNyOz layer: wherein 0.7≤x+y+z≤1, preferably z 0.3 and y>0.2, preferably x>0.4 and the thickness is in the range from 0.5 to 7 μm, and which is a columnar grain, and at least one layer of Al 2 O 3 : wherein the layer is composed of substantially a κ phase optionally containing a small amount of α phase, the thickness is in the range from 0.3 to 5 μm, preferably from 0.3 to 4 μm. COPYRIGHT: (C)2004,JPO
解决方案:插入件由硬质合金制成的主体和涂膜组成。 硬质合金体的组成如下: Co:7.9〜8.6重量%,Ta和Nb:0.5〜2.1重量%的立方晶碳总和,Ta重量%与Nb重量%的比例:1.0〜12.0,余量:WC 平均截面长度为0.4〜0.9μm,其粘结相为WC,对应S值为0.81〜0.95。 涂膜包括最内层的TiCxNyOz:其中0.7≤x+ y +z≤1,优选z <0.5,进一步优选为y> x和z <0.2,其为等轴晶粒,总厚度<1μm 优选>0.1μm,TiC x N y O z层:其中0.7≤x+ y +z≤1,优选z <0.2且x> 0.3且y> 0.2,优选x> 0.4,并且厚度在0.5至7μm的范围内 ,并且是柱状晶粒,以及至少一层Al 2 O 3,其中所述层由基本上由任选含有少量α的κ相组成 相,厚度为0.3〜5μm,优选为0.3〜4μm。 版权所有(C)2004,JPO
Abstract:
The present invention relates to a coated cemented carbide inserts (cutting tool), particularly useful for milling at high cutting speeds in steels and milling in hardened steels. The inserts are characterised by a WC-Co cemented carbide containing NbC and TaC and a W-alloyed binder phase and a coating including a first, innermost layer of TiCxNyOz with equiaxed grains, a layer of TiCxNyOz with columnar grains and at least one layer of Al2O3 consisting essentially of the kappa -phase.
Abstract:
The present invention relates to a coated cemented carbide insert (cutting tool), particularly useful for wet or dry milling of steels at high cutting speeds, milling of hardened steels and high feed copy milling of tool steel. The cutting tool insert is characterised by a cemented carbide body comprising WC, NbC and TaC, a W-alloyed Co binder phase, and a coating comprising an innermost layer of TiC x N y O z with equiaxed grains, a layer of TiC x N y O z with columnar grains and a layer of ±-Al 2 O 3 .