摘要:
In order to improve the wear resistancy--including adherence behaviour, ductility and shearing strength--at a diamond coated multiphase body, an element enrichment is applied in controlled manner in the interphase of base body and diamond layer.
摘要:
The present invention relates to a coated cutting tool insert useful for grooving or severing steel components such as steel or stainless steel tubes and bars. The insert is characterized by WC—Co-based cemented carbide substrate having a highly W-alloyed Co-binder phase and a relatively thin coating including an inner layer of TiCxNyOz with columnar grains followed by a layer of fine grained &kgr;—Al2O3 and a top layer of TiN.
摘要翻译:本发明涉及一种用于切割或切断诸如钢或不锈钢管和钢条的钢构件的涂层切削工具刀片。 该嵌件的特征在于具有高W合金Co粘合剂相的WC-Co基硬质合金基材和相对薄的涂层,其包括具有柱状晶粒的TiC x N y O z的内层,随后是一层细粒度的κ-Al 2 O 3和顶部 TiN层。
摘要:
According to the present invention there is now provided a body of cemented carbide or cermets coated with at least one diamond layer. The diamond layer is smooth on all sides of the body with an Ra
摘要:
There is now provided a body coated with at least one diamond layer on a substrate of cemented carbide or cermets. The substrate is before the diamond coating process provided with spotwise occurring particles containing an element either being any of W, Ta, Ti, Mo Cr, V, Nb, Mg, Ca, Na, K or, preferably, any of B, Si, S, Al or P. These particles are dispersed at a density giving an average distance between two particles of 20 .mu.m or less, preferably 5 .mu.m or less.
摘要:
A cutting tool includes a substrate on which at least on the functioning parts of the surface thereof a thin, adherent, hard and wear resistant coating is applied, wherein the coating includes a laminated multilayer of alternating PVD or PECVD metal oxide layers, Me1X+Me2X+Me1X+Me2X . . . , where at least one of Me1X and Me2X is a metal oxide+metal oxide nano-composite layer composed of two components, wherein the layers Me1X and Me2X are different in composition or structure, the laminated multilayer layer has a compositional gradient, with regards to a concentration, in a direction from an outer surface of the coating towards the substrate, the gradient being such that a difference between an average concentration of an outermost portion of the multilayer and an average concentration of an innermost portion of the multilayer is at least about 5 at-% in absolute units.
摘要:
The present invention relates to a cutting tool comprising a substrate of cemented carbide, cermet, ceramics, cubic boron nitride or high speed steel on which at least on the functioning parts of the surface thereof a thin, adherent, hard and wear resistant coating is applied, wherein said coating comprises a laminated multilayer of alternating PVD or PECVD metal oxide layers, Me1X+Me2X+Me1X+Me2X . . . , where the metal atoms Me1 and Me2 are one or more of Ti, Nb, V, Mo, Zr, Cr, Al, Hf, Ta, Y and Si, and where at least one of Me1X and Me2X is a metal oxide+metal oxide nano-composite layer composed of two components, component A and component B, with different composition and different structure, which components comprise a single phase oxide of one metal element or a solid solution of two or more metal oxides, wherein the layers Me1X and Me2X are different in composition or structure or both and have individual layer thicknesses larger than about 0.4 nm but smaller than about 50 nm, said laminated multilayer layer has a total thickness of between about 0.2 and about 20 μm and has a compositional gradient, with regards the concentration of one or more of the metal atom(s), in the direction from the outer surface of the coating towards the substrate, the gradient being such that the difference in between the average concentration of the outermost portion of the multilayer and the average concentration of the innermost portion of the multilayer is at least about 5 at-% in absolute units.
摘要翻译:本发明涉及一种包括硬质合金,金属陶瓷,陶瓷,立方氮化硼或高速钢的基材的切削工具,其上至少在其表面的功能部分上施加薄的,粘附的,耐硬且耐磨的涂层 ,其中所述涂层包括交替的PVD或PECVD金属氧化物层的层叠多层,其中X 1 + X 2 + X 2 + X 1 + X 2 + X 2。 。 。 其中金属原子Me 1和Me 2是Ti,Nb,V,Mo,Zr,Cr,Al,Hf,Ta,Y和Si中的一种或多种 ,并且其中Me 1 X和Me 2 X中的至少一个是由两种组分A和B组成的金属氧化物+金属氧化物纳米复合层, 具有不同的组成和不同的结构,这些组分包括一种金属元素的单相氧化物或两种或更多种金属氧化物的固溶体,其中层I 1 X和Me 2, SUB> X的组成或结构或两者都不同,并且具有大于约0.4nm但小于约50nm的单独层厚度,所述层压多层层的总厚度为约0.2至约20μm,具有组成梯度, 考虑到一个或多个金属原子的浓度,在从涂层的外表面朝向基底的方向上,梯度使得平均直径之间的差异 多层的最外部分的浓度和多层的最内部的平均浓度以绝对单位为至少约5原子%。
摘要:
The present invention relates to cutting tool insert for metal machining on which at least on the functioning parts of the surface thereof a thin, adherent, hard and wear resistant coating is applied. The coating comprises a metal oxide/oxide composite layer consisting of two components with a grain size of from about 1 to about 100 nm. The oxide layer is under a compressive stress.
摘要:
According to the present invention there is now provided a body of cemented carbide provided with at least one wear resistant layer, which body contains a zone in the cemented carbide and adjacent to the applied layer, containing triangular WC platelets with a specific orientation. Different binder phase gradients are possible. The body is in particular suited for application of CVD diamond layers.
摘要:
A cutting tool includes a substrate on which at least on the functioning parts of the surface thereof a thin, adherent, hard and wear resistant coating is applied, wherein the coating includes a laminated multilayer of alternating PVD or PECVD metal oxide layers, Me1X+Me2X+Me1X+Me2X . . . , where at least one of Me1X and Me2X is a metal oxide+metal oxide nano-composite layer composed of two components with different composition and different structure which components include a single phase oxide of one metal element or a solid solution of two or more metal oxides, wherein the layers Me1X and Me2X are different in composition or structure and have individual layer thicknesses larger than about 0.4 nm but smaller than about 50 nm and where said laminated multilayer layer has a total thickness of between about 0.2 and about 20 μm.
摘要:
The presently claimed invention discloses a compound body of a wear resistant substrate with a surface coating, which body is suitable for wear parts and tools applications. The body includes top and bottom surfaces and at least one peripheral wall extending therebetween, the intersection of said peripheral wall and at least said top surface forming a cutting edge. The surface coating on said body is a diamond coating of a thickness of 1-30 .mu.m deposited directly from the gas phase in a reactor by CVD or PVD technique in a manner so as to ensure rigid bonding to said carbide substrate. The top face is provided with an integral chipformer so as to provide chips formed during machining into a desired and controllable configuration.