摘要:
According to one embodiment, a composite product includes hexagonal boron nitride (hBN), and a plurality of cubic boron nitride (cBN) particles, wherein the plurality of cBN particles are dispersed in a matrix of the hBN. According to another embodiment, a composite product includes a plurality of cBN particles, and one or more borate-containing binders.
摘要:
A manufacturing apparatus, of a grinding stone which is manufactured by attaching abrasive grains respectively having polyhedral shapes in which mutually opposed surfaces are parallel to each other to a base member, is provided with: an abrasive grains classifying apparatus adapted to classify the abrasive grains based on sizes of the abrasive grains defined by face-to-face distances between the mutually opposed surfaces; and an attaching apparatus adapted to attach the abrasive grains classified by the abrasive grains classifying apparatus to the base member. The attaching apparatus is provided with: a template which is disposed above the base member to be movable with respect to the base member and formed with a guide hole through which the classified abrasive grains pass; a vibration generator connected to the template or the base member and adapted to apply a vibration to the abrasive grains passing through the template; and an electrolytic deposition bath adapted to electrolytic deposit the abrasive grains passing through the template.
摘要:
A superabrasive compact and a method of making the superabrasive compact are disclosed. A method of making a superabrasive compact comprises steps of providing a plurality of superabrasive particles having a particle size distribution with a first ratio (d50)/(d50 principle particles) ranging from about 0.86 to about 0.92; providing a support to the plurality of superabrasive particles; and subjecting the support and the plurality of superabrasive particles to conditions of an elevated temperature and pressure suitable for producing the polycrystalline superabrasive compact.
摘要:
A bonded abrasive wheel comprises ceramic shaped abrasive particles retained in a binder. The ceramic shaped abrasive particles are bounded by a respective base, top and plurality of sides connecting the base and the top. Adjacent sides meet at respective side edges having an average radius of curvature of less than 50 micrometers.
摘要:
An abrasive article can include a bonded abrasive body having abrasive particles comprising microcrystalline alumina (MCA) contained within a bond material. In an embodiment, the bonded abrasive body has a porosity of at least about 42 vol % of the total volume of the bonded abrasive body. Additionally, in an embodiment, the bonded abrasive body is capable of grinding a workpiece comprising metal at a speed of at least about 60 m/s at a material removal rate of at least about 0.4 in3/min/in (258 mm3/min/mm).
摘要翻译:研磨制品可以包括具有包含在粘合材料内的微晶氧化铝(MCA)的磨料颗粒的粘合研磨体。 在一个实施例中,粘合的研磨体具有至少约42vol%的粘结磨料体的总体积的孔隙率。 另外,在一个实施方案中,粘结的研磨体能够以至少约0.4m 3 / min / in(258mm 3 / min / in)的材料去除速率以至少约60m / s的速度研磨包含金属的工件, mm)。
摘要:
A grinding lamella 1 for being arranged on a grinding wheel 19 which is rotatingly drivable around an axis of rotation, comprising an outer edge 2 which is at least partially convex, an inner edge 3 which is at least partially concave, a front edge 4 which connects together the outer edge 2 and the inner edge 3 on the front side of the grinding lamella 1, and a rear edge 5 which connects together the outer edge 2 and the inner edge 3 on a rear side of the grinding lamella 1, wherein the front edge 4 is longer than the rear edge 5 and wherein the outer edge 2 is longer than the inner edge 3.
摘要:
A coated abrasive article including a plurality of shaped abrasive particles overlying a backing, the coated abrasive article having a plain-carbon steel grinding lifespan of at least about 5500 g/in.
摘要:
Provided are an alumina sintered compact containing a titanium compound and an iron compound, wherein FeTiAlO5 grains exist in the grain boundary of the alumina grains and the mean grain size of the FeTiAlO5 grains is from 3.4 to 7.0 μm; and an abrasive grain and a grain stone using the alumina sintered compact.
摘要:
Abrasive particles comprising shaped abrasive particles each having a sidewall, each of the shaped abrasive particles comprising alpha alumina and having a first face and a second face separated by a sidewall and having a maximum thickness, T; and the shaped abrasive particles further comprising a plurality of grooves on the second face.
摘要:
A method includes: providing a mold having a plurality of mold cavities, wherein each mold cavity is bounded by a plurality of faces joined along common edges; filling at least some of the mold cavities with a sol-gel composition that includes a release agent dispersed therein; at least partially drying the sol-gel composition thereby forming shaped ceramic precursor particles; calcining at least a portion of the shaped ceramic precursor particles to provide calcined shaped ceramic precursor particles; and sintering at least a portion of the calcined shaped ceramic precursor particles to provide ceramic shaped abrasive particles. A sol-gel composition, shaped ceramic precursor particles, and ceramic shaped abrasive particles associated with practice of the method are also disclosed.