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公开(公告)号：EP0081775A3
公开(公告)日：1983-07-20
申请号：EP82111234
申请日：1982-12-04
发明人： Ohno, John Michio
CPC分类号： C04B35/6264 , B23B27/146 , B23B27/148 , B23B2226/72 , B24D3/06 , C04B35/52 , C04B35/532 , C04B35/573 , C04B35/6316 , C04B37/001 , C04B2235/3826 , C04B2235/3873 , C04B2235/424 , C04B2235/427 , C04B2235/428 , C04B2235/46 , C04B2235/5248 , C04B2235/526 , C04B2235/5264 , C04B2235/616 , C04B2235/656 , C04B2235/721 , C04B2235/762 , C04B2235/80 , C04B2237/363 , C04B2237/365 , C04B2237/385 , C04B2237/61 , C04B2237/76 , C04B2237/86
摘要： Sintered silicon carbide cutting tool composites containing diamond crystals are described. They are made through a process comprising separately compacting carbon binder materials, one of which contains superhard crystals, into a cutting tool insert configuration when the crystals are concentrated in the cutting edges, infiltrating the insert with liquid silicon and sintering and nitriding the insert to convert the silicon to silicon carbide and silicon nitride.
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公开(公告)号：EP0208414A3
公开(公告)日：1987-11-04
申请号：EP86304323
申请日：1986-06-06
CPC分类号： C04B35/52 , B01J3/062 , B01J2203/062 , B01J2203/0655 , B01J2203/0685 , B22F7/06 , B24D3/06 , C04B35/6316 , C04B35/645 , C04B37/021 , C04B37/026 , C04B2235/3826 , C04B2235/427 , C04B2235/428 , C04B2235/5445 , C04B2235/616 , C04B2235/656 , C04B2235/6567 , C04B2235/80 , C04B2237/083 , C04B2237/09 , C04B2237/363 , C04B2237/401 , C04B2237/61 , C04B2237/64 , C22C26/00
摘要： The invention provides a composite diamond abrasive compact comprising a thermally stable diamond compact directly bonded to a cemented carbide substrate. The thermally stable diamond compact comprises bonded diamond forming a coherent, skeletal mass and a second phase which preferably consists of silicon and/or silicon carbide. A method of producing the composite diamond abrasive compact under controlled elevated temperature and pressure conditions is also provided.
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公开(公告)号：EP0004449A3
公开(公告)日：1979-11-14
申请号：EP79300429
申请日：1979-03-19
CPC分类号： B24D18/0018 , C25D15/00
摘要： A bonding process for grinding tools in which a metallic workpiece (10) is pre-etched (14) to form cavities in the surface of the workpiece for individually receiving abrasive particles to be bonded thereto. The etched workpiece is at least partially embedded in a layer (46) of the abrasive particles in a first plating bath (20) comprising an aqueous solution of metal ions (22) and an electromotive force is imposed across the workpiece and an anode (34) so that the abrasive particles become partially embedded in the cavities in the workpiece surface as metal is plated on to the surface and around the abrasive particles adjacent to the surface. A second plating of metal in a second plating bath (40) securely bonds the particles to the workpiece and can provide the workpiece with a predetermined hardness for a particular application. The dual bonding process can be repeated for each layer to make multilayered tools.
摘要翻译： 一种用于研磨工具的接合工艺，其中金属工件（10）被预蚀刻（14）以在工件的表面中形成用于单独接收待结合的磨料颗粒的空腔。 蚀刻的工件至少部分地嵌入在包含金属离子（22）的水溶液的第一电镀浴（20）中的磨料颗粒层（46）中，并且在工件和阳极（34）上施加电动势 ），使得当金属镀在与表面相邻的表面和磨料颗粒周围时，磨料颗粒部分地嵌入在工件表面的空腔中。 在第二电镀槽（40）中的第二次金属电镀将颗粒牢固地粘合到工件上，并且可以为特定应用提供预定硬度的工件。 可以对每个层重复双重粘合过程以制作多层工具。
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公开(公告)号：EP0114497A3
公开(公告)日：1985-05-08
申请号：EP83307766
申请日：1983-12-20
发明人： Dyer, Henry Brooke
摘要： In a method of removing second phase from an abrasive compact, the invention provides the improvement of forming a slot or hole in the compact prior to or during the removal step. The compact is typically a diamond compact having a cobalt second phase which may be removed by leaching.
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公开(公告)号：EP0071022A3
公开(公告)日：1984-05-23
申请号：EP82105653
申请日：1982-06-25
申请人： NORTON COMPANY
摘要： A grinding wheel including an abrasive portion of diamond abrasive grits, or cubic boron nitride grits bonded in a metal matrix, said matrix consisting of a metallic phase and optionally up to 50% by volume of a dispersed particulate lubricant filler, said metal phase consisting essentially of a hot-pressed mixture of finely particulate 5 to 30% by volume aluminum, 10 to 35% by volume zinc, 20 to 70% by volume copper, and 5 to 30% by volume tin. The abrasive elements produced are particularly useful to form cup wheels for the dry grinding of carbide and tool steel.
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公开(公告)号：EP0104063A3
公开(公告)日：1985-01-02
申请号：EP83305436
申请日：1983-09-15
CPC分类号： C04B37/026 , B23K35/001 , B24D3/007 , B24D3/06 , C04B2237/124 , C04B2237/125 , C04B2237/127 , C04B2237/361 , C04B2237/401 , C04B2237/708
摘要： A cubic boron nitride compact is bonded to a cemented carbide support through an alloy bonding layer which contains 40 to 70 percent by weight silver, gold or a combination thereof and 1 to 10 percent by weight of a high melting metal selected from the group of titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium and molybdenum. Bonding may be achieved by first metallising a surface of the cubic boron nitride compact (14) with a layer (16) of gold or silver or a gold or silver based alloy and then bonding the metallised layer to the carbide support (10) by means of a braze alloy (12) having a liquidus temperature above 700°C.
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公开(公告)号：EP0090658A3
公开(公告)日：1984-11-14
申请号：EP83301795
申请日：1983-03-30
CPC分类号： E21B10/567 , B22F3/14 , B22F7/06 , B23K20/16 , B23K20/22 , B23P15/30 , B24D3/007 , B24D3/06 , B24D18/00 , C04B35/645 , C04B37/025 , C04B37/026 , C04B2237/08 , C04B2237/123 , C04B2237/124 , C04B2237/348 , C04B2237/361 , C04B2237/363 , C04B2237/368 , C04B2237/401 , C04B2237/405 , C04B2237/52 , C04B2237/64 , C04B2237/708 , C04B2237/72 , C04B2237/76 , C04B2237/78
摘要： There is provided a method of bonding an abrasive compact to a metal-containing support body, typically a body of cemented carbide, using solid state diffusion bonding techniques. The metal which is used for the diffusion bonding is nickel, copper, cobalt, iron or an alloy containing one or more of these metals.
摘要翻译： 提供了一种使用固态扩散粘合技术将研磨压块粘合到含金属的支撑体，典型地为硬质合金体的方法。 用于扩散结合的金属是镍，铜，钴，铁或含有一种或多种这些金属的合金。
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公开(公告)号：EP0046374A3
公开(公告)日：1982-06-23
申请号：EP81303687
申请日：1981-08-13
CPC分类号： E21B10/5676 , B22F7/06 , B22F2999/00 , B24D3/06 , C09K3/1445 , C22C26/00 , E21B10/46 , B22F1/025 , C22C27/06
摘要： The invention provides an abrasive body which will generally be of cylindrical shape comprising a plurality of superhard abrasive particles such as diamond bonded together by means of a tough wear-resistant nickel based alloy having a melting point of below 1000°C. These alloys are known as hard facing alloys. The abrasive bodies may be used as inserts for drill crowns. The bodies are made by mixing the abrasive particles with the alloy in powdered form, producing a green-state, coherent body from the mixture, generally by cold pressing, and sintering the green-state product under conditions which inhibit degradation of the abrasive particle.
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公开(公告)号：EP0184455A3
公开(公告)日：1987-08-19
申请号：EP85308863
申请日：1985-12-05
CPC分类号： B23K35/004 , B23K1/20 , Y10S76/11
摘要： A method of bonding a cemented carbide surface to a metal surface is provided. The method involves applying an alloy layer to one or both of the surfaces, the alloy comprising a major amount of nickel or copper and a minor amount of phosphorus, heat treating the alloy layer below its liquidus temperature to cause it to diffusion bond to the surface top to which it is applied and bonding the surfaces together by means of a braze alloy which preferably has a liquidus of no more than 750°C. The method has particular application to bonding cutting inserts to drill bits and cutting tools for mining machines.
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公开(公告)号：EP0166676A3
公开(公告)日：1987-08-05
申请号：EP85630097
申请日：1985-06-20
摘要： A very thin abrasive material (26) on a substrate (24, 28) is comprised of ceramic particulates (30) contained within a metal matrix (36). The particulates extend fully through the matrix from the substrate surface (32) to the machined free surface (44) of the abrasive. In a representative 0.38 mm abrasive the particulates are sized nominally at 0.42-0.50 mm and have an aspect ratio of less than 1.9 to 1. This enables a high density of particulates, in the range 33-62 per cm 2 , while at the same time ensuring good bonding in that most of the particulates are fully surrounded by matrix. When the abrasive is applied to the tip of a superalloy gas turbine engine blade (20), about 10-50% of the matrix metal is removed after machining. This allows the machined ceramic particulates (30) to project into space and to thus better interact with ceramic abradable seals. In the preferred practice of the invention the particulates are alumina coated silicon carbide contained in a nickel superalloy matrix.
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