Abstract:
The present invention provides an alloy comprising from about 5 to about 15 wt% Ta, from 0 to about 5 wt% Nb, from about 0.5 to about 15 wt% Zr, and the balance Ti. The alloy is particularly intended for medical devices such as implants for the body.
Abstract:
The present invention relates to a cutting insert for turning in steel, stainless steel and heat resistant super alloys comprising a substrate and a coating. The insert has a rake face (1), a flank face (2), cutting edges (3) and a cutting corner (4). The cemented carbide substrate comprises WC, 8.5- 11.5 wt-% Co and 0.8-1.2 wt-% Cr with a coercivity of 19-23 kA/m and a CW_Cr-ratio of 0.80-0.97. The coating comprises an inner (A1, Ti) N- layer, with a thickness of 1-8 μm, and a composition of Al y Ti 1-y N, where y = 0.30-0.50, and a (AI, Cr) O- layer with a thickness of 0.2-1.5 μm and a composition of (Al x Cr I-X ) 2 O 3 , where x = 0.5-0.9. Inserts according to the invention has high resistance against crater and flank wear as well as improved cutting edge toughness without any loss of plastic deformation resistance. The invention also relates to a method of making the insert by using cathodic arc evaporation or magnetron sputtering. It also relates to the use of the insert for turning in steel, stainless steel and heat resistant super alloy.
Abstract translation:本发明涉及一种用于转动钢,不锈钢和耐热超合金的切削刀片,其包括基底和涂层。 插入件具有前刀面(1),侧面(2),切削刃(3)和切削角(4)。 硬质合金基体包括WC,8.5-11.5wt%Co和0.8-1.2wt%Cr,矫顽力为19-23kA / m,CW_Cr比为0.80-0.97。 该涂层包括厚度为1-8μm的内部(A1,Ti)N层,以及y = 0.30-0.50的AllyTi1-yN的组成和(AI,Cr)O层, 厚度为0.2-1.5μm,(Al x CrI-X)2 O 3的组成为x = 0.5〜0.9。 根据本发明的插入件具有高耐火山口和侧面磨损性,以及改进的切削刃韧性,而不损失塑性变形抗力。 本发明还涉及通过使用阴极电弧蒸发或磁控溅射制造插入件的方法。 它还涉及用于转动钢,不锈钢和耐热超合金的刀片的使用。
Abstract:
The present invention discloses a coated cutting tool insert particularly useful for dry and wet machining, preferably milling, in low and medium alloyed steels, stainless steels, with or without raw surface zones. The insert is characterized by a WC-TaC-NbC-Co cemented carbide with a W alloyed Co-binder phase and a coating including an innermost layer of TiCxNyO2 with columnar grains and a top layer at least on the rake face of a smooth α-Al2C>3.
Abstract translation:本发明公开了一种特别适用于在具有或不具有原始表面区域的低和中等合金钢,不锈钢中进行干式和湿式加工,优选铣削的涂覆切削刀具刀片。 该插入件的特征在于具有W合金Co粘合剂相的WC-TaC-NbC-Co硬质合金和包含具有柱状晶粒的最内层的TiC x N y O 2的涂层,以及至少在平滑a- Al2C> 3。
Abstract:
A rock drill button, comprising a body made of sintered cemented carbide that comprises hard constituents of tungsten carbide (WC) in a binder phase comprising Co, wherein the cemented carbide comprises 4-12 mass% Co and balance WC and unavoidable impurities. The rock drill button is characterized in that said cemented carbide also comprises Cr in such an amount that the Cr/Co ratio is within the range of 0.043-0.19, and that the WC grain size mean value is above 1.75 µm.
Abstract:
The present invention relates to a cutting tool in sert for turning consisting of a cemented carbide substrate and a coating. The cemented carbide substrate comprises WC, binder phase, and vanadium containing cubic carbide phase with a binder phase enriched surface zone essentially free of cubic carbide phase. The thermal properties of the vanadium- containing cubic phase, has turned out to give excellent resistance to thermal cracking of the insert.
Abstract:
The present invention relates to a cutting tool comprising a cemented carbide substrate comprising WC, a metallic binder phase and gamma phase, where the cemented carbide has a well distributed gamma phase and where the cemented carbide have a reduced amount of abnormal WC grains. The cutting tool according to the invention has a more predicted tool life and an increased resistance against plastic deformation.
Abstract:
A method of producing a component of a composite of diamond and a binder, wherein a Hot Isostatic gas Pressure process (HIP) is used, comprising the step of enclosing a de-bound green body (1) comprising compacted diamond particles in an infiltrant (2). The method comprises the further steps of enclosing said de-bound green body (1) and infiltrant (2) in a Zr-capsule (3) that comprises Zirconium as a main constituent and sealing the Zr-capsule (3), and applying a predetermined pressure-temperature cycle on the unit formed by said de-bound green body (1), infiltrant (2) and capsule (3) in which the infiltrant (2) infiltrates the de-bound green body (1) and the de-bound green body (1) is further densified in the sense that the volume thereof is decreased.
Abstract:
The present relates to a process of manufacturing cemented carbide and to a product obtained thereof wherein hex doped WC is subjected to nitrogen before and/or during sintering.
Abstract:
The present invention relates to a diamond composite comprising diamond particles embedded in a binder matrix comprising SiC and a M n+1 AX n -phase, where no diamond-to-diamond bonding are present. For the M n+1 AX n -phase n=1-3, M is one or more elements selected from the group Sc, Ti, Zr, Hf, V, Nb, Ta, Cr and Mo, A is one or more elements selected from the group Al, Si, P, S, Ga, Ge, As, Cd, In, Sn, Tl, and Pb and X is carbon and/or nitrogen.
Abstract:
The present invention relates to a coated cutting tool comprising a cemented carbide substrate comprising WC, a metallic binder phase and gamma phase, where the cemented carbide has a well distributed gamma phase and where the cemented carbide have a reduced amount of abnormal WC grains. Further, the coated cutting tool is provided with a CVD coating comprising a TiCN and an α-Al 2 O 3 layer where said α-Al 2 O 3 layer exhibits a texture coefficient TC(0 0 12)≥7.2 and where in the ratio I(0 0 12)/I(0 1 14)≥1. The coated cutting tool according to the invention has an increased resistance against plastic deformation while maintaining the toughness.