Abstract: A method for processing a ceramic honeycomb structure, the method comprising subjecting an outer peripheral surface of the ceramic honeycomb structure to centerless grinding in an in-feed mode by bringing a rotationally driving grinding wheel into contact with the outer peripheral surface of the ceramic honeycomb structure rotationally supported by an adjusting wheel, a blade, and a press roller.

Abstract: A processing method for a wafer includes a thermocompression-bonding sheet arrangement step of arranging, on a front side of the wafer, a thermocompression-bonding sheet of a size sufficient to cover the wafer, an integration step of pressing the thermocompression-bonding sheet under heat by a planarizing member, so that the thermocompression-bonding sheet is planarized and the thermocompression-bonding sheet and the wafer are integrated together, a grinding step of holding the wafer on a side of the thermocompression-bonding sheet on a chuck table of a grinding apparatus and grinding the wafer to a desired thickness while supplying grinding water to a back side of the wafer, and a thermocompression-bonding sheet rinsing step of unloading the integrated wafer from the chuck table and rinsing the thermocompression-bonding sheet.

Abstract: In a sanding machine for sanding/finishing panels made of wood, metal or the like, an abrasive belt is moved so as to cause it to come into contact with a panel by a plurality of thrust elements, which are distributed inside the abrasive belt, and are moved perpendicularly to the panel by respective actuator cylinders, each of which has an output rod which is moveable between a lowered operating position and a raised rest position under the thrust of a pressurised gas supplied in a continuous manner to an upper chamber of the actuator cylinder and in a selective manner to a lower chamber of the actuator cylinder itself.

Abstract: A method for detecting an influx and/or loss of circulation in a wellbore, comprising measuring a condition in the wellbore using a downhole sensor; determining that a positive displacement pump is shut off or turned on; predicting pit volume and/or gas concentration at a plurality of time points after the positive displacement pump is shut off or turned on using the measured condition in the wellbore prior to the positive displacement pump is shut off or turned on, wherein the measured condition correlates with the pit volume and/or gas concentration; measuring pit volume and/or gas concentration at the plurality of time points; comparing the predicted and the measured pit volumes and/or gas concentrations at the plurality of time points; and producing a warning signal if the difference between the predicted and the measured pit volumes and/or gas concentrations is greater than a pre determined value.

Abstract: A dressing method of a cutting blade includes a first cutting step of causing the cutting blade to cut into a dressing board held by a holding surface of a chuck table with a cutting depth that does not surpass the length of the region of roundness in the radial direction of the cutting blade to form a cut groove in the dressing board, and a second cutting step of causing the cutting blade to further cut into the groove bottom of the cut groove formed in the first cutting step with a cutting depth that does not surpass the length of the region of roundness in the radial direction of the cutting blade to carry out cutting on the groove bottom with tracing of the cut groove.

Abstract: There is provided a processing method for a package substrate having a plurality of division lines formed on the front side. The processing method includes the steps of holding the back side of the package substrate by using a holding tape and fully cutting the package substrate along the division lines to such a depth corresponding to the middle of the thickness of the holding tape by using a profile grinding tool, thereby dividing the package substrate into individual semiconductor packages. The profile grinding tool has a plurality of projections for cutting the package substrate respectively along the plural division lines. Each projection has an inclined side surface.

Abstract: To provide a dressing apparatus capable of uniformly dressing a polishing pad. The apparatus includes first and second dressing grind stones 51 and 52 which grind polishing pads 17 and 18 by moving in a radial direction of upper and lower polishing plates 12 and 14 while abutting on corresponding polishing pads 17 and 18, in which the first and second dressing grind stones 51 and 52 are set so as to have: an inner side region portion P; an outer side region portion Q; and an intermediate region portion R, wherein the length of each of the inner side region portion P and the outer side region portion Q extending in a circumferential direction of the polishing plates 12 and 14 is longer than the length of the intermediate region portion R extending in a circumferential direction of the polishing plates.

Abstract: Arcuate fixation members with varying configurations and/or features are provided, along with additional components for use therewith in provided intervertebral implants. The arcuate fixation members may be of different lengths, cross sectional geometries, and/or cross sectional areas. Applications of intervertebral implants utilizing arcuate fixation members are particularly suitable when a linear line-of-approach for delivering fixation members is undesirable.

Abstract: A double disc surface grinding machine (10) includes work holding section (65) for holding an inner circumferential surface of an annular work (W) at a plurality of locations. The work holding section (65) includes a plurality of holding members (66) extending radially as viewed from a rotation shaft (46). Each holding member (66) is movable outward and inward radially of the rotation shaft (46), and is contactable to the inner circumferential surface of the work (W). The position adjustment section (76) connects the rotation shaft (46) and the work holding section (65) with each other, and adjusts a position of the work holding section (65) in the radial direction of the rotation shaft (46). While the inner circumferential surface of the work (W) is held by the work holding section (65), the rotation shaft (46), the position adjustment section (76), the work holding section (65) and the work (W) are rotated integrally with each other around the rotation shaft (46).

Abstract: A distribution unit (U) for distribution carbonaceous particulate material, in particular powdered rubber or equivalent material to be applied on the peripheral surfaces (F) of a tire (P), comprises nozzle diffuser (2) for spreading said particulate material and pneumatic supply (1,3,5,7) for feeding said particulate material to said nozzle diffuser (2).

Abstract: A skeleton unit to mount mosaic plates, includes a main body section and an extension section. The main body section is integrally formed by strip pieces perpendicularly crossing each other to provide a grille shape. The extension section extends out from four edges of the main body section and is integrally formed with the main body section. The extension section includes prolongation pieces which respectively extend out from both ends of each strip piece, and parallel strips which connect with the outside ends of each prolongation piece on the same side and are in parallel with the edges of the main body section respectively. The parallel strip has lap joint hole portions, which penetrates the parallel strips and are used to overlap another skeleton unit. The sum of double the length of the prolongation piece and the width of the parallel strip is equal to the length of the grid.

Abstract: A vegetation cutting device comprising a housing rotatably coupled to a shaft; a cutting head comprising a rotary cutting device for cutting vegetation, the cutting head being coupled to the shaft and being arranged to move between an edging mode in which the rotary cutting device rotates in a substantially horizontal plane; a motor mounted in the housing, the motor being arranged to drive the rotary cutting device; and a switching device mechanically coupled between the housing and the shaft and arranged to be actuated when the shaft rotates relatives to the housing thereby changing the speed of the rotary cutting device when the cutting head moves between the edging mode and trimming mode.

Abstract: A grinding wheel includes an annular base and a plurality of abrasive members fixed to the lower surface of the base and arranged annularly. The base has a plurality of through holes for discharging a grinding water. The plural through holes radially extend from the inner side surface to the outer side surface of the base. The plural through holes are arranged at given intervals in the circumferential direction of the base so that the grinding water is scattered in different directions from the through holes.

Abstract: A table cutting machine includes a table for carrying an object to be cut; a cutting device, associated with the table, for cutting the object to be cut; a water tank for providing a cooling water to the cutting device; and a water level indicating device for indirectly indicating a water level of the cooling water from a top of the table or a side of the water tank. The device thus enables the user to observe the water level from the top of the table or the side of the water tank of the table cutting machine without removing the table during the observation.

Abstract: [Object] An outer periphery polishing apparatus capable of polishing the edge of workpieces having different bevel angles is to be provided.

Abstract: A pair of pinching members pinching a workpiece stem portion, and a deburring tool performing deburring onto the workpiece stem portion pinched by the pair of pinching members are disposed under a pair of guide rails. The deburring tool has a recess so that an opening of the recess faces the other end face of the workpiece stem portion, and is capable of a displacement motion in an axis extension direction of the recess while rotating around the recess axis, and a recess inner circumferential surface is formed so as to reduce its diameter as it goes from the recess opening side toward a recess internal side, and a blade portion is provided on the recess inner circumferential surface. Thereby, it is possible to perform deburring without increasing the machining line length, and prevent abnormal wear of a rubbing stone due to the deburring.

Abstract: A grinding wheel machining device includes a movable platform and a grinding wheel machining mechanism. The grinding wheel machining mechanism includes a mounting assembly, a tool holder mounted on the movable member, a machining tool mounted on the tool holder, and an adjusting assembly. The mounting assembly includes a fixing base mounted on the movable platform, a movable member mounted onto the fixing base, and a rotation shaft received into the fixing base and the movable member. The machining tool includes a cutting edge. The adjusting assembly includes a reference member and an adjusting member. The reference member is fixed on the movable member and includes a reference surface. The reference surface is coplanar with a central axis of the rotation shaft. The adjusting member is received into the tool holder and threaded into the reference surface.

Abstract: A polishing pad shape measured by a polishing pad shape measuring apparatus is modified into a target shape of a polishing pad by using a dressing tool so that a wafer has a desired surface shape. The invention is a method for shape modification of a polishing pad 14 for polishing a workpiece into a desired surface shape, comprising: a measurement step S9 of measuring a polishing pad shape in a state of being attached to a plate 12 by using a polishing pad shape measuring apparatus 10; a condition determination step S10 of selecting a dressing recipe capable of polishing the workpiece into a desired surface shape from a plurality of pre-provided dressing recipes based on the measurement result in the measurement step S9; and a shape modification step S11 of dressing the polishing pad 14 by using the dressing recipe determined in the condition determination step S10.

Abstract: A method of dressing a wheel using a polycrystalline CVD synthetic diamond dresser, the method comprising: rotating the wheel; and contacting a working surface of the wheel with a working surface of the polycrystalline CVD synthetic diamond dresser, wherein the polycrystalline CVD synthetic diamond dresser is oriented such that a leading edge of the working surface of the polycrystalline CVD synthetic diamond dresser is formed of larger grains than a trailing edge of the working surface of the polycrystalline CVD synthetic diamond dresser.

Abstract: Provided is a gear grinding machine the maintainability of which can be improved and which is capable of being miniaturized. More specifically, provided is a gear grinding machine wherein a threaded grinding stone (17) and a workpiece (W) are engaged with each other and are rotated in this state, resulting in the workpiece (W) being ground, and wherein between a dressing position (P2) where the threaded grinding stone (17) can be dressed and a retreat position (P1) to which a retreat is made from the dressing position (P2) during grinding, a disk dresser (66) which, by being driven into rotation, dresses the threaded grinding stone (17) is swung about an axis (C2) which is parallel to an axis (C1) that is the rotational axis for the workpiece (W) and which intersects, at right angles, the direction in which the threaded grinding stone (17) is fed toward the workpiece (W).

Abstract: A grinding wheel machining device includes a movable platform and a grinding wheel machining mechanism. The grinding wheel machining mechanism includes a mounting assembly, a tool holder mounted on the movable member, a machining tool mounted on the tool holder, and an adjusting assembly. The mounting assembly includes a fixing base mounted on the movable platform, a movable member mounted onto the fixing base, and a rotation shaft received into the fixing base and the movable member. The machining tool includes a cutting edge. The adjusting assembly includes a reference member and an adjusting member. The reference member is fixed on the movable member and includes a reference surface. The reference surface is coplanar with a central axis of the rotation shaft. The adjusting member is received into the tool holder and threaded into the reference surface.

Abstract: A dressing blade for finishing and reconditioning new and used abrasive grinding and cutting tools has a slab-shaped shank with an extension protruding longitudinally from the shank. Superabrasive grains are disposed on the surface of the extension and held in place by a brazed metal composition. This composition is formed by brazing a powdered mixture of brazing metal components and active metal components. Specific extension configurations are provided which allow aligning the superabrasive grains in single layer arrangement for precise dressing and simple fabrication of the tool. The novel dressing tool exhibits excellent wear characteristics.

Abstract: A wafer dicing blade includes a cutting part including a protrusion, the protrusion having a uniform region with a substantially uniform width, and a support covering at least one sidewall of the cutting part, the protrusion of the cutting part extending beyond an edge of the support.

Abstract: A disc-shaped, rotary dressing tool has a rigid core and an abrasive rim around at least one surface of the periphery of the rigid core. The rigid core and the abrasive rim are oriented in a direction orthogonal to the axis of rotation of the tool. In an embodiment, the abrasive rim comprises an abrasive component bonded to the rigid core by means of an active braze. The abrasive component can be diamond grains arranged in a single layer or diamond film inserts. In a particular embodiment, the abrasive component can comprise a plurality of abrasive inserts mechanically fastened to the rigid core. In another embodiment, the abrasive rim can comprise strips of an abrasive component with each strip being filled into slots machined into and through the perimeter of the core.

Abstract: A wheel truing apparatus adapted for use in a cylindrical grinding machine wherein a work head with a work spindle for support of a workpiece and a wheel head with a grinding wheel for grinding the workpiece are mounted on a bed for relative movement in a Z-axis direction parallel with the rotation axis of the work spindle and in an X-axis direction crossing the Z-axis direction, characterized in that the wheel truing apparatus comprises a rotary drive portion mounted on the work head or a member united therewith, and a wheel truing tool supported on the rotary drive portion for rotation therewith, the wheel truing tool being provided at its outer periphery with a truing portion for truing a grinding surface of the wheel brought into contact therewith, wherein the rotary drive portion is placed in a position adjacent to said work head in a tooling area defined by a stroke of the relative movements of said wheel head and said work head in the Z-axis direction and apart from said work spindle radially outward a

Abstract: An apparatus for dressing a grinding wheel mounted on a flex-arm, the apparatus including a base, a post, a dresser and a guide, wherein when the flex-arm is in an unengaged position with the apparatus, the flex-arm is capable of movement along at least two directional axes, and wherein when the flex-arm is in an engaged position with the apparatus, the flex-arm is restricted to movement along one directional axis.

Abstract: A method and an apparatus 10 for cutting an object 64, such as a grinding wheel. Particularly, the object 64 is placed in a horizontal manner and concomitantly rotated with the cutter 14 during the entire cutting operation. The rotation occurs are a relatively high speed and such concomitant rotation and such horizontal placement allows the cutting to occur in a desired manner.

Abstract: A method for conditioning a superabrasive grinding tool having a cutting surface includes truing the grinding tool by moving the cutting surface against a truing device to shape the cutting surface into a preselected profile, and subsequently moving the cutting surface against a sacrificial member so that the binder of the grinding tool is worn down, creating a plurality of spaces between the superabrasive particles. The spaces provide a flowpath for coolant and cutting chips during a subsequent machining process on a workpiece. Localized overheating or “burning” of the workpiece is thus avoided.

Abstract: A grinding apparatus for grinding a spline ball groove on a workpiece comprises a rod-shaped grindstone, having a distal end portion with a curved surface corresponding to the groove to be ground, and a spindle mechanism for rotating the grindstone. The spindle mechanism and the grindstone are supported by means of a supporter in a manner such that they are inclined at a given angle to an axis of the workpiece. A rotary dresser, which has a dress groove corresponding to the curved surface of the distal end portion of the grindstones is disposed near the grinding apparatus. The grindstone can be reciprocated along the axis of the workpiece by a drive mechanism between the workpiece and the dresser without changing its angle of inclination.

Abstract: A dressing apparatus (20) attached to a dressing pedestal (25) of a tooth flank grinding machine is maneuverable by means of an advancer device (27) from a dust proof position of rest aside of the dressing position into an optimum dressing position lying between work spindle (3) and grinding worm (11). Here it can be clamped to the bed with high precision and rigidity. After dressing, it is maneuverable back to the position of rest, in which it hinders neither the grinding process nor the workpiece setting up process.

Abstract: A dressing wheel has a disk-shaped base body centered on an axis and formed with an annular groove also centered on the axis and having an inner surface. A multiplicity of abrasive elements distributed along the groove are in direct contact with the groove inner surface. Matrix powder fills the groove between the elements and between the elements and the groove surfaces. A hardened infiltrating agent, e.g. solder, fills interstices of the matrix powder.

Abstract: A dresser wheel mounted on the column of a grinder is presented. The dresser has an x-axis adjustment for positioning the diamond tool along the x-axis and a y-axis adjustment mechanism attached to the x-axis adjustment mechanism for positioning the diamond tool along the y-axis. An angular rotational mechanism attached to the y-axis adjustment mechanism moves along the y axis in response to operation of the y-axis adjustment mechanism. The diamond tool is held in a slot of an arm that is connected to a frame that is connected to and rotates about the angular rotational mechanism. A micrometer is attached to the arm with one end of the micrometer in contact with the frame. The arm moves along an axis in response to a change in the micrometer setting. A dead stop hinged to the arm sets the diamond tool to a calibrated position.

Abstract: A burr is provided for dressing a grinding tool, such as the grinding surface of a pulpstone grinding tool used for mechanical preparation of wood pulp. The burr includes a cylindrical body portion, a plurality of teeth disposed on and protruding outward from the outer surface thereof, and at least one annular channel formed in the outer surface thereof. The burr may provide for a more uniform dress pattern in a grinding surface of a pulpstone grinding tool to provide improved consistency and quality of wood pulp produced thereby.

Abstract: A grinding apparatus for grinding a spline ball groove on a workpiece comprises a rod-shaped grindstone, having a distal end portion with a curved surface corresponding to the groove to be ground, and a spindle mechanism for rotating the grindstone. The spindle mechanism and the grindstone are supported by means of a supporter in a manner such that they are inclined at a given angle to an axis of the workpiece. A rotary dresser, which has a dress groove corresponding to the curved surface of the distal end portion of the grindstone, is disposed near the grinding apparatus. The grindstone can be reciprocated along the axis of the workpiece by a drive mechanism between the workpiece and the dresser without changing its angle of inclination.

Abstract: A dresser wheel mounted on the column of a grinder is presented. The dresser has an x-axis adjustment for positioning the diamond tool along the x-axis and a y-axis adjustment mechanism attached to the x-axis adjustment mechanism for positioning the diamond tool along the y-axis. An angular rotational mechanism attached to the y-axis adjustment mechanism moves along the y axis in response to operation of the y-axis adjustment mechanism. The diamond tool is held in a slot of an arm that is connected to a frame that is connected to and rotates about the angular rotational mechanism. A micrometer is attached to the arm with one end of the micrometer in contact with the frame. The arm moves along an axis in response to a change in the micrometer setting. A dead stop hinged to the arm sets the diamond tool to a calibrated position.

Abstract: The present invention comprises a metal bond grind stone having a flat plate portion 10a and a tapered portion 10b; an electrode 13 opposed to the metal bond grind stone with a gap therebetween; voltage applying means 12 for applying a direct-current pulse voltage between the metal bond grind stone and the electrode; conductive liquid supplying means 14 for supplying a conductive liquid 15 between the metal bond grind stone and the electrode; and grind stone moving means 16 for moving the metal bond grind stone in a direction orthogonal to the shaft center thereof, and an ingot 1 of a single crystal SiC is thereby cut at the tapered portion 10b of the metal bond grind stone and the cut surface is then specular-worked at the flat plate portion 10a.

Abstract: The present invention provides a grind method of diamond grinding wheel finisher, is to set the axis of diamond grinding wheel and the axis of grinding wheel to be finished cross axially each other form an appropriate degree, make the radial circle face of the grinding wheel against closely to the axial finishing face of the diamond grinding wheel, and the diamond grinding wheel and the grinding wheel to be finished turn to the same direction, when diamond grinding wheel and the grinding wheel to be finished turn together, the diamond grinding wheel can finishing the radial face of grinding wheel to be finished that against closely to the axial finishing face of the diamond grinding wheel roundly.

Abstract: Method for dressing or profiling an essentially cylindrical grinding worm on a machine suitable for continuous generating grinding in the diagonal method. The method comprises providing an essentially cylindrical gear used as a dressing tool with the dressing tool being provided with an abrasive coating on that surface which is active in the dressing process and bringing the dressing tool into contact with the grinding worm and profiling at least one flank of the grinding worm in a tangential or diagonal method.

Abstract: A grinding apparatus for grinding a spline ball groove on a workpiece comprises a rod-shaped grindstone, having a distal end portion with a curved surface corresponding to the groove to be ground, and a spindle mechanism for rotating the grindstone. The spindle mechanism and the grindstone are supported by means of a supporter in a manner such that they are inclined at a given angle to an axis of the workpiece. A rotary dresser, which has a dress groove corresponding to the curved surface of the distal end portion of the grindstone, is disposed near the grinding apparatus. The grindstone can be reciprocated along the axis of the workpiece by a drive mechanism between the workpiece and the dresser without changing its angle of inclination.

Abstract: A forming device (100) for bevelling includes a base (102), a rail (104), a workbench (106) and a bar (108). A pair of support arms (114) extends upwardly from the base. An axle (120) is received in pivot holes (118) defined in the support arms. One end of the rail is fixedly connected with the axle. The workbench rests on the rail, and is slidably moveable along the rail. A beveller (132) is fixedly installed in a top surface of the workbench. The bar is fixedly connected to an opposite end of the rail. The bar includes a large bar (134) abutting the support plate, and a coaxial small bar (136). The rail can be adjusted to allow the forming device to bevel at an angle of less than one degree, by placing one or a combination of standard gauges between the small bar and the base.

Abstract: A flat workpiece 5 (silicon wafer) is driven so as to rotate in horizontal by a workpiece driving device 12. A cylindrical conducting grindstone 14 is provided, the outer periphery of which is in contact with the surface of the workpiece. A grindstone rotating device 16 drives the grindstone about the axis thereof. A grindstone reciprocating device 18 moves the grindstone with a reciprocating motion along the surface of the workpiece. An axial guiding device 20 keeps the center line X of the grindstone at a predetermined angle to the horizontal axis. An ELID device 22 electrolytically dresses the outer periphery of the grindstone. The center line X of the grindstone is held at a predetermined angle &thgr; to the horizontal axis, and at the same time, the outer periphery of the grindstone is dressed electrolytically.

Abstract: A forming device (100) for bevelling includes a base (102), a rail (104), a workbench (106) and a bar (108). A pair of support arms (114) extends upwardly from the base. An axle (120) is received in pivot holes (118) defined in the support arms. One end of the rail is fixedly connected with the axle. The workbench rests on the rail, and is slidably moveable along the rail. A beveller (132) is fixedly installed in a top surface of the workbench. The bar is fixedly connected to an opposite end of the rail. The bar includes a large bar (134) abutting the support plate, and a coaxial small bar (136). The rail can be adjusted to allow the forming device to bevel at an angle of less than one degree, by placing one or a combination of standard gauges between the small bar and the base.

Abstract: Truing of a grinder is performed by irradiating a laser beam onto abrasive grains on the outermost periphery of the grinder from the tangential direction of the grinder. Truing of the grinder for adjusting the number of working abrasive grains and the shape of the abrasive grains involved in the actual machining is performed under a non-contact condition and at highly accurately, thereby enabling highly accurate and highly efficient machining.

Abstract: A grinding apparatus for grinding a spline ball groove on a workpiece comprises a rod-shaped grindstone, having a distal end portion with a curved surface corresponding to the groove to be ground, and a spindle mechanism for rotating the grindstone. The spindle mechanism and the grindstone are supported by means of a supporter in a manner such that they are inclined at a given angle to an axis of the workpiece. A rotary dresser, which has a dress groove corresponding to the curved surface of the distal end portion of the grindstone, is disposed near the grinding apparatus. The grindstone can be reciprocated along the axis of the workpiece by a drive mechanism between the workpiece and the dresser without changing its angle of inclination.

Abstract: A method of fabricating a silicon semiconductor discrete wafer while dressing the grinding wheel is disclosed that assures excellent finishing accuracy and productivity. The dressing of the grinding wheel includes mixing air and grinding water from a surface grinding process including semiconductor chips lapped with abrasive grains having a count of at least #2000 and no more than #6000 and jetting the mixed air and grinding water as minute water drops back onto the surface of the grinding wheel during grinding of a wafer. Both cut surfaces are ground to a predetermined thickness with the dressed grinding wheel (via a surface grinding machine). The processing surface is wet-etched as the final processing.

Abstract: A method for cutting a ceramic base plate with which the process efficiency is improved, a stable cutting resistance can be maintained during the cutting process, and excellent process precision can be achieved, a wherein supporting plate which is used for the cutting of the ceramic base plate has a structure of a sealed surface layer which has been impregnated with glass components into both surfaces of the sintered porous alumina body. The supporting plate is fixed on a stage of a cutting machine along a forward direction of the rotary cutting blade through a vacuum-absorption and the ceramic base plate as a work-piece is wax-bonded to the supporting plate. While rotating the rotary cutting blade, first of all, the supporting plate is cut so that the blade is dressed/sharpened with the sintered porous alumina body.