摘要:
Methods of fabricating polycrystalline diamond include subjecting a particle mixture to high pressure and high temperature (HPHT) conditions to form inter-granular diamond-to-diamond bonds. Before being subjected to HPHT conditions, the particle mixture includes a plurality of non-diamond nanoparticles, diamond nanoparticles, and diamond grit. The non-diamond nanoparticles includes carbon-free cores and at least one functional group attached to the cores. Cutting elements for use in an earth-boring tool include a polycrystalline diamond material formed by such processes. Earth-boring tools include such cutting elements.
摘要:
A coated cutting tool having a substrate and a surface coating, wherein the coating includes a Ti(C,N) layer of at least one columnar fine-grained MTCVD Ti(C,N) layer with an average grain width of 0.05-0.2 μm and an atomic ratio of carbon to the sum of carbon and nitrogen (C/(C+N)) contained in the MTCVD Ti(C,N) layer is in average 0.50-0.65.
摘要:
A method for producing a coated abrasive includes producing or providing an intermediate abrasive product that comprises a substrate, a plurality of abrasive grains that are bonded to the substrate, and at least one layer of an uncured size coat that at least partially covers the abrasive grains with the uppermost size coat being uncured. The method further includes applying at least one grinding additive to the uppermost, uncured size coat with the grinding additive applied to the size coat in dry form. The method also includes curing the uppermost size coat. A coated abrasive is produced by the method and the coated abrasive is used to process a surface.
摘要:
A method for producing a coated abrasive includes producing or providing an intermediate abrasive product that comprises a substrate, a plurality of abrasive grains that are bonded to the substrate, and at least one layer of an uncured size coat that at least partially covers the abrasive grains with the uppermost size coat being uncured. The method further includes applying at least one grinding additive to the uppermost, uncured size coat with the grinding additive applied to the size coat in dry form. The method also includes curing the uppermost size coat. A coated abrasive is produced by the method and the coated abrasive is used to process a surface.
摘要:
An abrasive article can include a body including a bond material and abrasive particles contained within the bond material. The abrasive particles can include nanocrystalline alumina. The bond material can include an inorganic material including a ceramic.
摘要:
Methods of depositing hardfacing material portions of earth-boring tools may involve supporting at least a portion of an earth-boring tool in a holder of a workpiece positioner, the holder being movable in at least a third plane. A location of a surface of the at least a portion of the earth-boring tool may be determined utilizing at least one sensor. The workpiece positioner, the sensor, and a torch positioner comprising a hardfacing torch movable in at least a first plane perpendicular to the third plane and a second plane parallel to the third plane may be controlled utilizing a programmable control system to cause the torch positioner to oscillate the hardfacing torch in the second plane while selectively causing the workpiece positioner to move the holder in the third plane and causing the torch to deposit hardfacing material on the surface.
摘要:
Embodiments of the present invention generally relate to a blade for isolating devices within a wafer and the method of isolating. The blade has a core material, a cutting material disposed on the core material, and a plating material covering a portion of the core and cutting materials. The edge of the blade is not covered by the plating material. During operation, a portion of the plating material is removed to expose the underlying core and cutting materials based on the wearing of the core and cutting materials at the edge of the blade.
摘要:
Methods for depositing hardfacing material on portions of drill bits comprise providing a vertically oriented plasma transfer arc torch secured to a positioner having controllable movement in a substantially vertical plane. A rolling cutter is secured to a chuck mounted on an articulated arm of a robot. A surface of a tooth of the rolling cutter is positioned in a substantially perpendicular relationship beneath the torch. The torch is oscillated along a substantially horizontal axis. The rolling cutter is moved with the articulated arm of the robot in a plane beneath the oscillating torch. A hardfacing material is deposited on the tooth of the rolling cutter.
摘要:
The present disclosure relates to a chemical mechanical planarization pad and a method of making and using a chemical mechanical planarization pad. The chemical mechanical planarization pad may include a first component including a water soluble composition and water insoluble composition exhibiting a solubility in water of less than that of the water soluble composition, wherein at least one of the water soluble and water insoluble compositions of the first component is formed of fibers. The chemical mechanical planarization pad may also include a second component, wherein the first component is present as a discrete phase in a continuous of the second component.
摘要:
Cutting tool insert has a substrate and a coating of one or more refractory layers of which at least one layer is an α-Al2O3 layer having thickness of 1 to 25 μm, sulphur content of more than 100 ppm analysed by Secondary Ion Mass Spectroscopy (SIMS), and texture coefficient TC (0 0 12)>4 for the (0 0 12) growth direction.The at least one α-Al2O3 layer is deposited by chemical vapour deposition (CVD) using reaction gases comprising H2, CO2, AlCl3 and X, with X being H2S, SO2, SF6, or combinations thereof, and optional additions of N2 and Ar. The amount of X is at least 1.0 vol-% of the total volume of gases in the reaction chamber. The volume ratio of CO2 and X in the reaction chamber lies within the range of 1≦CO2/X≦7 during deposition of the at least one α-Al2O3 layer.