Abstract: According to one implementation, a blast treatment method includes: setting a blast treatment condition for a composite material to make a degree of activation on the surface of the composite material within an appropriate range, based on reference information; and manufacturing a blast treated product by the blast treatment of the composite material under the blast treatment condition set to make the degree of the activation within the appropriate range. The reference information shows a relation between a strain amount of a test piece caused by blast treatment under a predetermined blast treatment condition and a degree of activation on a surface of a sample of a composite material by blast treatment, for activating the surface of the sample before painting or bonding, under the predetermined blast treatment condition.

Abstract: A catcher for a fluid stream and a method of capturing a fluid stream from a nozzle and dissipating the energy therein includes receiving the fluid stream into a housing through an aperture; and deflecting the fluid stream obliquely within the housing in one or more preselected directions.

Abstract: Disclosed is a polishing apparatus that polishes a substrate by causing the substrate to be in slide contact with a polishing pad. The polishing apparatus includes a pad temperature control mechanism configured to control a surface temperature of the polishing pad, which includes a pad contact member that comes in contact with the surface of the polishing pad and a liquid supply system configured to supply a temperature-controlled liquid to the pad contact member. The pad contact member includes a liquid flow path therein, and the liquid flow path communicates with a liquid inlet and a liquid outlet connected to the liquid supply system. At least one planar baffle is disposed in the liquid flow path, and the baffle has a space therein.

Abstract: The manually-operated tooth-buffing tool is a dental appliance that is adapted for use with a tooth. The manually-operated tooth-buffing tool is a handheld disposable tool that is used for the buffing and polishing of the tooth. The manually-operated tooth-buffing tool comprises a buffing head and a handle. The buffing head further comprises a grit that is rubbed against the tooth such that the plaque, calculus, and stains on the tooth are removed and the surface of the tooth is smooth.

Abstract: A method and apparatus for processing a metallic workpiece with defined edges (e.g., a gear) comprises media blasting of the workpiece by directing a first media against exposed surfaces on the workpiece to increase the root strength of the gear, the blasting causing the defined edges to be radiused or mushroomed, ceasing the media blasting, loading the workpiece into a finishing apparatus, and subjecting the workpiece to a finishing process with a second media, the exposed surfaces on the workpiece being subjected to the finishing process to reduce the radiused edges on the workpiece created from the media blasting. The process of moving the workpiece to the spindle-finishing apparatus from the media blasting may be performed automatically by a machine. Once the workpiece has been subjected to the finishing process with the second media, it may be removed from the spindle-finishing machine, washed, and rinsed with rust inhibitor whereby wear properties of the workpiece are enhanced.

Abstract: An electric grinder with a switched reluctance motor comprises a body, a transmission assembly, a grinding wheel, and a dust-proof assembly. The body includes a first casing and a second casing. The transmission assembly includes a switched reluctance motor disposed in the first casing, a driving module disposed in the second casing, a transmission shaft connected with the switched reluctance motor, and an assemblage seat disposed in the transmission shaft. The assemblage seat includes an assemblage member for assembling the grinding wheel. The dust-proof assembly includes a dust-proof hood disposed in the first casing. Because of being driven by the switched reluctance motor, the electric grinder of the present invention adapts to the cases of phase failure, frequent start-stop operations, and phase inversion.

Abstract: A honing tool for working several separate bores that are arranged coaxially in series and have different diameters. The honing tool includes several cutting bar groups arranged coaxially in series, wherein a diameter of a cutting bar group of the several cutting bar groups, which diameter is formed by radially extendable cutting bars, differs from a corresponding diameter of at least one other cutting bar group of the several cutting bar groups. A centering bar group is arranged in an axial direction to a free end of the honing tool adjacent at least one cutting bar group; or a guide bar group is arranged directly adjacent opposite the free end of the honing tool adjacent the at least one cutting bar group, or both the centering bar group and the guide bar group are arranged accordingly.

Abstract: Proposed herein is a method for producing substrates, particularly those of synthetic quartz glass, while saving the substrate surface from killer defects without resorting to any large-scale apparatus and precision polishing plate, thereby reducing defects and improving yields more than in production with conventional facilities. The method for producing substrates by polishing, includes steps of placing substrate stocks individually in work holes formed in a carrier on a lower polishing plate, bringing an upper polishing plate into contact with the surface of the substrate stocks, with the surface of the substrate stocks being coated with an impact-absorbing liquid and the lower polishing plate being rotated, and rotating the upper and lower polishing plates, with the surface of the substrate stocks being accompanied by a polishing slurry.

Abstract: The use of abrasive entrainment waterjet technology to cut improvised hazardous devices, such as improvised explosive devices (IEDs), located above or below ground. Abrasive is conducted to an entrainment abrasive waterjet cutting head under the control of an abrasive feed and metering system that monitors the flow rate of abrasive.

Abstract: Disclosed herein is a grinding wheel including an annular wheel base and a plurality of grinding stones fixed to an outer circumferential portion of the lower end of the annular wheel base. Each of the grinding stones is made of a mixture of abrasive grains and photocatalytic particles which are held together by a binder. The abrasive grains are diamond abrasive grains, and the photocatalytic particles are titanium oxide (TiO2) particles.

Abstract: A sander for use with a vacuum extraction system is provided. The sander comprises a body, a releasable retention mechanism on an upper surface adjacent each end of the body, a platen, the platen adjacent to and attached to a lower surface of the body and having a pattern of grooves, an at least one vacuum port extending through the body and platen and positioned such that the grooves in the platen are substantially directed to the at least one vacuum port, wherein the improvement comprises a perforated sandpaper sheet, the perforated sandpaper sheet comprising: an upper sandpaper layer; a lower plastic polymer foam layer; and a plurality of apertures in a plurality of series; the plurality of series of apertures in a pattern configured to align with the pattern of grooves in the platen of the sander, the plurality of apertures occupying about 5 percent of an upper surface area of the sandpaper sheet.

Abstract: The use of abrasive entrainment waterjet technology to cut improvised hazardous devices, such as improvised explosive devices (IEDs), located above or below ground. Abrasive is conducted to an entrainment abrasive waterjet cutting head under the control of an abrasive feed and metering system that monitors the flow rate of abrasive.

Abstract: A multi-layered polishing pad arrangement includes a first polishing pad layer having a first top and a first bottom major surface, a second polishing pad layer having a second top and a second bottom major surface, and a coupling arrangement disposed between the first bottom surface and the second top surface. The thickness of each of the first and second polishing pad layer ranges between 0.125 mm and 10 mm.

Abstract: A localized chemical mechanical polishing (CMP) platform is provided. A table is configured to support a workpiece with a to-be-polished surface. A polishing pad is spaced from the table with a width less than about half that of the table. The polishing pad is configured to individually polish rough regions of hillocks or valleys on the to-be-polished surface. A slurry distribution system is configured to apply slurry to an interface between the polishing pad and the workpiece. A cleaning system is configured to clean the workpiece in situ on the table. A drying system is configured to dry the workpiece in situ on the table. A method for CMP with local profile control and a system with local profile control are also provided.

Abstract: The positioning of a cylindrical workpiece (that has to be machined by grinding) can be performed particularly precisely if the workpiece abuts to at least one, preferably two, static supporting elements and is fixed in a collet of a spindle, which allows a wobble compensation as well as a radial displacement of the spindle axis relative to the longitudinal axis of the workpiece.

Abstract: A grinding apparatus has a support frame and first and second carriages horizontally displaceable on the frame. Respective first and second workpiece spindles are each capable of holding and rotating a workpiece and are vertically displaceable on the first and second carriages. Respective first and second grinders on the frame carry respective first and second grinding wheels and are oriented to engage and machine workpieces held and rotated by the workpiece spindles. One of the grinders is movable horizontal or vertically on the frame.

Abstract: A grinding wheel used for grinding of a work piece is provided. The grinding wheel includes a circular disc-shaped base having a fixed end surface in contact with a mount of grinding apparatus and a free end surface on the opposite side to the fixed end surface, and plural abrasive stone chips arranged in a ring manner on the free end surface of the base. The abrasive stone chips are each formed into a block shape having a surface in which two or more kinds of plate-shaped abrasive stone members containing abrasive grains and a binder are exposed to the outside by overlapping the two or more kinds of abrasive stone members. The surfaces exposed to the outside in the abrasive stone chips serve as grinding processing surfaces that get contact with the work piece.

Abstract: The invention relates to a vulcanized fiber grinding tool (1) comprising two vulcanized fiber grinding disks (2, 3) which are adhered to each other over the entire surface by means of an adhesive layer (4) arranged between the vulcanized fiber grinding disks (2, 3) such that the vulcanized fiber grinding disk (2, 3) outer faces provided with the grinding means point away from each other and the use of a support plate is not necessary.

Abstract: A rotary sanding system for retro fitting a Rotozip sanding disk to an air tool includes a first disk that may be removably coupled to an air tool thereby facilitating the air tool to rotate the first disk. The first disk has a plurality of openings extending therethrough and air may pass through the openings. A mating unit is coupled to the first disk. The mating unit engages the air tool thereby facilitating the first disk to be removably coupled to the air tool. A sanding disk is removably coupled to the first disk. The sanding disk may abrade a surface when the air tool rotates the first disk.

Abstract: A device for producing a curved surface (2) of a work piece (1) includes a tool (3) and a tool holder for receiving the tool (3), the tool holder being drivable for rotation about a tool axis (4). At least one work piece holder accommodates a work piece (1). The work piece holder is drivable for rotation about a work piece axis (5). The tool axis (4) and the work piece axis (5) are positionable at an angle relative to one another. The tool axis (4) and the work piece axis (5) are positionable at an angle relative to one another. A work piece holder support (6) receives a plurality of work piece holders, the work piece holders being rotatably drivable relative to the work piece holder support (6).