Showing papers on "Honing published in 1994"

Stone polishing apparatus and method

Abstract: A self-propelled battery operated stone floor polishing machine having dual rotating heads with detachable stone grinding, honing, and polishing pads. The polishing machine includes an integral solution tank for applying a liquid lubrication to the floor through the heads, a recovery tank for collecting the slurry generated by the grinding, honing, and polishing action, and an integral squeegee system that removes the liquid and particle slurry and thereafter transfers the slurry to the recovery tank. The grinding pads are integrated with metallic alloys, bonding industrial diamond abrasives for grinding marble, granite, poured terrazzo, precast terrazzo, cement, concrete, porcelain tile, ceramic tile, teracotta tile, but are not limited to these stone surfaces. A single operator may grind, hone, and polish up to 1,500 square feet of stone floors in a normal work day.

Process for coating automotive engine cylinders

Abstract: A method for coating the internal cylinder bores of a cast aluminum engine block comprising the steps of casting an engine block of aluminum alloy, thermally spraying a wear-resistant coating onto cylinder walls in the engine block by melting the tip of a rotating iron-based alloy rod with a plasma torch within cylinders in the engine block, and honing the cylinder walls to a chosen size.

Method to hone curved and shaped profiles and honing machine to carry out such method

Abstract: Method to hone curved and shaped profiles which belong to furniture elements, which are advantageously of furniture of an antique style, such as surfaces of tables, mouldings of furniture or pictures, panels, doors of kitchen cupboards, seat elements, etc., the profile to be honed of which includes at least one shaping with projections (35) and valleys (34) positioned close together, the method including a step of continuous identification and reading of each position of the profile of the specific piece (11) to be honed by means of a profile-reader assembly (17), a step for storage of the data relating to that profile/position, and a step of transfer of such data to an operating unit (18) equipped with a relative operating element (32) that performs the honing with a resulting governing of the position of that operating unit (18) in relation to the piece (11) to be honed, this step of transfer of the data taking place with a delay after the step of identification and reading, this delay being a function of the circumferential position of the operating unit (18) in relation to the profile-reader assembly (17) and being a function of the relative speed of feed of the piece (11) to be honed in relation to operating element (32), the method including also steps of automatic compensation of the wear of the operating element (32) and steps of compensation of the intensity of the honing action of the operating unit (18), these compensation steps depending on the geometric and structural characteristics of the profile of the piece (11) to be honed, on the characteristics of the operating element (32) and on the type of processing performed. Honing machine which performs the above method.

Polycrystalline abrasive compact with honed edge

Abstract: A compact cutter for drilling or cutting material, such as rock, is formed from a substrate of tungsten carbide, or other hard substance, bonded to a polycrystalline layer which includes an upper, generally planar cutting surface The corner formed by the cutting surface and the sides of the polycrystalline layer is rounded by honing to remove cracks and other irregularities and to eliminate the need for chamfering the corner

Method for preparing aluminum for subsequent electroplating

Abstract: A method for preparing aluminum and aluminum alloys includes the step of simultaneously honing the surface of the aluminum or aluminum alloy in a zincating solution. The honing removes the aluminum oxide layer from the surface of the aluminum or aluminum alloy work piece while the zincating solution deposits a layer of zinc on its surface. The zincate-honing may be followed by electroplating.

Apparatus and method for sharpening a cutting tool

Abstract: An apparatus and method for sharpening a cutting tool, including the grinding and honing of the cutting tool is described and illustrated. The apparatus comprises a base plate with a biasing frame mounted on the base plate. A tool holder is clamped to the biasing frame and releasably clamps a cutting tool, having an edge which is to be sharpened. A variety of tool holders allow the sharpening of different types of cutting tools. The cutting tool, and particularly, the edge thereof, is held in a stationary position and an abrasive member is moved with respect to the cutting edge of the tool. The apparatus forces the cutting edge of the tool against the abrasive member with a uniform amount of pressure and at a selected angle. Both the pressure and the selected angle are easily adjustable by the user. When the major variables, such as angle of sharpening and the pressure between the abrasive element and tool are fixed, an accurate, correct and reproducible sharpening will occur. A precise sharpening of the tool will automatically result since only the abrasive stone is moved back and forth across the base plate under the cutting edge of the tool.

Honing tool and super precision finishing method using the same

Abstract: The invention relates to a honing tool for carrying out honing working of a work with high accuracy and super precision finishing method using the honing tool. The honing tool is mainly constituted by a pilot section (5), a rough grinding section (7), a finish grinding section (10) and a correction section (13). The honing tool is sent at rapid speed while being reciprocated little, and the machining working and correction finishing of the straightness are carried out thereby the honing working is carried out. According to the invention, the machining working efficiency and the working accuracy can be improved, and the honing finishing with high straightness becomes possible.

Method of rolling honing bevel gears as well as a tool and apparatus for carrying out the method

Abstract: Bevel and hypoid gears with precut teeth and any longitudinal tooth shapes are hard-finished with this continuous method. The tools provided with a coating of mechanically resistant material are bevel-gear-like bodies which are simple to produce on conventional gear-cutting machines for bevel gears. In the process, the stock removal is achieved by spraying an abrasive medium between tool and work gear. According to the invention, the tool is derived from a virtual generating gear, in the interior of which it meshes, while the generating gear in turn meshes with the work gear. An additional rotary speed component of the tool brings about rolling of the tool by the engagement zone between generating gear and work gear, that is, past the work gear, as a result of which the contact between tool and work gear gradually comes about (feed movement). The change in the shaft angle between tool and work gear permits an infeed for the specific control of the chip thickness. The complicated spatial rolling movement of the tool in the process is converted according to the invention by a transformation into a simple plane axial displacement in combination with a shaft-angle rotation, which according to the invention is realised by a finishing machine with only three moving machine axes and two machine spindles. The method can be carried out in the case of all gear tooth systems which can be lapped, by additional movements of the machine axes all corrections of contact-pattern form, size and position are ... Original abstract incomplete.

Compound machining tool for floating cutting and roller burnishing

Abstract: PURPOSE:To provide a precision machining tool, with which the pipe material pressure-welding and the honing or the like is not required and the working process and the working time are shortened and a manufacturing cost of a pipe having an inner diameter at high products accuracy is reduced remarkably. CONSTITUTION:A floating cutting tool 2 for rough cutting and finish cutting and a roller burnishing tool 3 are connected internally in the axial direction to form a compound machining tool for floating cutting and roller burnishing so that when a connecting tool is rotated for movement inside of a hole of a pipe to be processed, the rough cutting and the finish cutting is performed by the floating cutting tool 2 at the time of going, and the flat and smooth and abrasion-proof finish is performed by the roller burnishing tool 3 at the time of return.

Liquid honing process and composition for interference fringe suppression in photosensitive imaging members

Abstract: A process for producing an electrophotographic photoreceptor having a roughened substrate surface by wet honing the substrate surface with a composition including deionized water and substantially spherical glass beads. The process produces a photoreceptor substrate that eliminates interference fringe effects caused by reflection of coherent light without creating other printing defects such as white or black spots. A wet honing composition for producing such photoreceptors is also provided.

Constant concentration rinseable slurry device

Abstract: In a honing system for producing a light-scattering surface on a photoreceptor substrate for use in xerographic printers, a constant concentration maintenance device is employed to drain an appropriate amount of liquid from a honing slurry to match the amount of liquid added during rinsing of the photoreceptor substrate. The constant concentration maintenance device is mechanically effected by vibrations in the mixing apparatus of the honing system, facilitating separation of the liquid an solid parts of the slurry. Delay between honing and rinsing is eliminated through use of the same honing booth for both operations.

Method and apparatus for treating brake rotors

Abstract: The method and apparatus for honing and treating the pad engaging surfaces of vehicle brake rotors or discs consisting of engaging the rotor surface with a plurality of moving abrasive elements mounted upon flexible resilient stems wherein a smooth finished surface is formed. The abrasive elements are rotated about an axis which may be coincident with the brake rotor axis of rotation during machining, or may be offset and parallel thereto, to produce a basket weave machining pattern. A plurality of hone holders may be used when the hone axis of rotation is offset relative to the rotor axis whereby both of the rotor's surfaces may be simultaneously finished. The practice of the invention also permits the braking surfaces of aluminum alloy rotors to be oxidized to form a hard, wear resistant finish thereon.

Deburring attachment for a honing tool

Abstract: Burrs formed at the ends of a bore during a honing operation performed by a single pass honing tool are removed by a deburring attachment which is carried on the leading end of the tool. The attachment includes one set of spring-loaded blades which remove burrs at one end of the bore as the tool is retracted from the bore and further includes an axially spaced set of spring-loaded blades which remove burrs at the opposite end of the bore during retraction of the tool.

Method and tool for improving the structure of the inner faces of working chambers of machines and motors

Abstract: In place of conventional machining of cylinder paths or tracks of piston engines, a honing machining without a rotary component is performed at least as a final machining operation so that the remaining small honing tracks are directed longitudinally and consequently permit an improved running-in behavior in conjunction with the piston rings. A preferred honing tool this has honing segments taking up a large circumferential portion and which are preferably resiliently constructed in Such a way that they automatically adapt to the cylinder path. A coating of components in the vicinity or working chambers, such as internal combustion chambers, e.g. of piston rings, comprises a chemically inert, anti-adhesive metal, such as e.g. niobium or zirconium. It is applied in a target process in vacuo and has a small thickness of approximately 8 micrometers. Together with the final machining by honing in the axial direction and in conjunction with a corresponding cylinder path, there is an improved running-in behavior, lower pollutant formation, better sealing and oil scraping.

Honing tool and method of manufacture thereof

Abstract: An injection molded disposable honing tool is made by an injection molding process. The tool has an elongated rectangular base from which projects an elongated section which may be somewhat smaller. The elongated section terminates in a working face. The entire tool may incorporate abrasive therein homogeneously or simply the elongated section which terminates in the working face. A shot of a plastic melt such as nylon is formed with abrasive mixed homogeneously which is then injected into a mold. For higher cost abrasive, a two shot process may be used with one shot being abrasive free. Alternatively, an abrasive-free insert may be placed in the mold before the abrasive mix is injected. The surface of the working face may be formed to act as a working face of closely packed fingers by placing patterns in the mold surface forming the working face, or subsequently cutting the working face, or a combination of both.

Method for precision-grinding a bezel at the inlet bore a workpiece

Abstract: A method for precision-grinding a bezel at the inlet of a bore of a workpiece, comprising the following steps: a. generating a bezel at the inlet of the bore of the workpiece by grinding the workpiece at the inlet of the bore with a first grinding tool into a first shape defining an angle correspondingly slightly greater than a desired nominal angle; b. honing the bore to generate a honed bore; and c. again grinding the bezel to its nominal shape by means of a second grinding tool, while simultaneously guiding the second grinding tool in the honed bore by means of a pilot.

Dental instrument sharpening guide

Abstract: Apparatus for manually sharpening dental instruments which require honing at a specific angle, comprising a planar base member having flat parallel sides and an elongated slot, a planar honing stone having flat parallel honing surfaces disposed within the slot of the base member perpendicularly to the plane of the base member and a spring clip positioned between one end of the slot and the honing stone for providing a biasing force to maintain the honing stone in pressure contact with the other end of the base member slot.

Replacement cylinder for cast iron block engine remanufacture

Abstract: A replacement cylinder for the remanufacture of cast iron engine blocks includes a sleeve formed of cast iron and having a relatively thin wall, a selected length, an outer diameter to achieve a slight clearance of fit within an overbored cylinder, an inner diameter equal to the original specifications of the original manufacturer of the engine block, and a helical cross hatched inner surface finish. The replacement cylinders are manufactured by placing an unfinished sleeve in a boring fixture, boring the inner surface to a selected diameter, transferring the bored sleeve to a honing fixture, and honing the inner surface to the required diameter and surface finish. An adhesive is applied to the prefinished replacement cylinders and the overbored block cylinders, and the replacement cylinders are inserted into the overbored cylinders wherein the adhesive is allowed to cure to thereby adhesively retain the replacement cylinders within the block.

Method and apparatus for the finish machining of gears

Abstract: A honing wheel (28) is in engagement with a gear (16) and is driven by a motor (33). During rotation of the work spindle (10), the deformation of the work centres (8,9) is detected and stored as a function of the angle of rotation of the workpiece. A correction signal is then calculated from the stored profile and superimposed on the infeed member for the infeed slide (3) in synchronism with the angle of rotation of the work spindle (10). Thus toothing errors can be eliminated, the tool life of the honing wheel (28) can be utilised in optimum manner and the machining time can be minimised.

Method and apparatus for the honing of workpieces

Abstract: An apparatus and a method for the honing of bores provides for the arrangement on both sides of the workpiece to be worked of guiding bushes which are turned synchronously with the tool during the honing. The honing tool has honing elements which reach into a guiding portion of the honing tool. The guiding bushes contain longitudinally extending recesses at the place where the honing strips are intended to lie. As a result, the overtravel of the honing tool during the honing movement can take place into the guiding elements.

Device for stopping spindle stock of honing machining device

Abstract: PURPOSE:To quickly stop a spindle stock at a desired position at the time of interruption to service in a honing device, of which spindle stock is reciprocated by the drive of a linear motor. CONSTITUTION:A spindle stock 20 is supported by a machining device main body such as a column 14 freely to be elevated, and reciprocated by the work of a linear motor 24. The linear motion of the spindle stock 20 is converted to the rotary motion of a disc 58 by a ball screw shaft 46 and a ball screw nut 59. On the other hand, a caliper 60 to be switched between the disc 58 pinching condition and the opening condition is provided.

Throw-away tip for cutting made of silicon-nitride-based coated ceramics

Abstract: PURPOSE:To provide a throw-away tip for cutting made of silicon-nitride-based coated ceramics that can cut cast iron at high efficiency. CONSTITUTION:In a coated Si3N4 throw-away tip, a base material 2 contains a large amount of betaSi3N4 at an outer peripheral portion 9 and breaker portions 6, and contains a large amount of alphaSi3N4 at a face and honing portions 7. This base material is coated with a single or a double layer consisting of titanium nitride, carbide, cabonitride, nitride carbonate and aluminum oxide.

Multi-head internal gear type gear honing machine

Abstract: PURPOSE:To make it easy to exchange stages of a machine to process many kinds of works in a processing line, by equipping an internal gear type gear honing machine with a plural number of honing heads. CONSTITUTION:A multi-head internal gear type gear honing machine comprises a dividing table 4 set on a wheel spindle cross slide 3 which is set as being able to move in the perpendicular direction to a work table 2, and a plural number of honing heads 7a, 7b, 7c attached onto the dividing table 4 as being able to be selectively positioned relatively to the work table 2.

Honing wheel dressing device

Abstract: The utility model provides a honing wheel finishing device. The output shaft of a motor is connected with a speed change system, the output shaft of the speed change system is connected with a honing wheel, the lower surface of the honing wheel is provided with a bracket, and the upper end of the bracket is provided with a diamond finishing wheel which is engaged with the honing wheel to from the honing wheel finishing device. The honing wheel finishing device is used for the finishing of the honing wheel of a gear honing machine. The honing wheel finishing device has the advantages that the honing wheel finishing device enhances the processing precision of the gear honing machine, and enhances the quality of a processed gear, etc.

Honing device of edge contact type

Abstract: PURPOSE: To provide an on edge hoping device to operate with the edge of an abrasive layer being pressed against a workpiece surface to be honed. CONSTITUTION: A honing device comprises an elongated drum part 12 having two side surfaces 14 and 16, two end faces 18 and 20, and two edge faces 22 and 24; an abrasive layer 14 extended to the edge face 22 formed of an abrasive and a binder attached on the side surface 14; and a device to mount a honing member 10 on a honing assembly such that the edge 19 of the abrasive layer 14 and the edge face 22 of the drum part 12 engage with a workpiece surface to be honed.

Method of honing

Abstract: PURPOSE: To simplify honing operation and to remove contamination caused by an abrasive and a metal on treated surfaces. CONSTITUTION: Honing of a cylindrical surface 12 is effected such that a grinding wheel 17 for coarse processing mounted on a honing head 10, effecting movement in a rotation direction and an axial direction, through holders 16 and 28 and a finishing honing tool 22 consisting of a monofilament bundle made of plastic containing abrasive and high in density and having slight flexibility are radially expanded and contracted independently of each other. Rough processing and a finishing honing process are continuously carried out or slightly spaced, or preferably the two processes are overlapped for up to about one-half of a rough honing process. In a case of the finishing honing tool 22 being operating alone, the angle of movement of the finishing honing tool 22 is somewhat of slant relative to swollen up part and grooves formed by the rough honing operation.

Electrophotographic sensitive body and treatment of non-cut aluminum pipe for use as conductive base body for the body

Abstract: PURPOSE:To save a cutting stage for an aluminum blank pipe, to drastically reduce the production cost of the conductive base body for the electrophotographic sensitive body and to provide the electrophotographic sensitive body which has decreased image quality defects and is stable to an environmental change. CONSTITUTION:The non-cut aluminum pipe 1 is subjected to a wet process honing treatment plural times by setting the impact force of a first stage larger than the impact force of the second or subsequent stages by the wet process honing treatment of the surface of the non-cut aluminum pipe 1 and the resulted aluminum pipe is used as the conductive base body of the electrophotographic sensitive body. The wet process honing treatment is executed by using a wet process honing device disposed with >=2 units of guns, connecting the guns 41, 42. respectively to polishing material liquid feed pipes 21, 21 and air introducing pipes 31, 32, setting the respective guns 41, 42 at prescribed pressures and simultaneously spraying the polishing materials from the guns 41, 42 to the non-cut aluminum pipe 1 while rotating the aluminum pipe 1.

End face processing method of throwaway tip

Abstract: PURPOSE:To carry out the honing work and the plane grinding work of a throwaway tip in a single process. CONSTITUTION:A grinding wheel 10 for honing having an elastic abrasive grain layer, and a grinding wheel 11 for plane grinding having a hard abrasive grain layer are provided oppositely, and after a carrier 12 having a carrier hole 13 is arranged between the grinding wheels 10 and 11, a tip C for grinding is inserted into each carrier hole 13 opposing the cutting edge side C2 of the tip to the grinding wheel 10 for honing, and the seating surface C1 of the tip to the grinding wheel 11 for plane grinding. After the grinding surfaces of both grinding wheels are brought into contact with both surfaces of the tip C, both grinding wheels are rotated, and the carrier 12 is planetary-rotated between both the grinding wheels, so as to plane grind the seating surface C1 of the tip while honing the cutting edge E of the tip.