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WO/1996/003255A1 |
In a method of and apparatus for grinding a cylindrical workpiece, the speed of the grinding wheel (14) and/or of the workpiece (18) is changed during the final dwell period in which sizing occurs, and the following additional steps are ...
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WO/1995/031310A1 |
Disclosed are polished and planarized diamond films and a method and apparatus for polishing and planarizing diamond films. The method generally includes mechanical polishing of the diamond film (55) against a ceramic surface (64) in the...
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WO/1995/024988A1 |
An ultrasonic working tool for allowing a tool (1) to perform strong and free driving in a stable fashion via a tool holder (2) using ultrasonic vibration as a driving source. A shank portion (1c) of the tool (1) is inserted into a round...
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WO/1995/021724A1 |
The description relates to a device for machining the edges of spectacle lenses with an electrically driven rotating grinding wheel, the peripheral edge of which engages with the peripheral edge of the spectacle lens during machining. Th...
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WO/1995/020465A1 |
A magnetic fluid grinding cell is disclosed. The apparatus comprises a cell or container (1) containing a magnetic fluid (2) in which is suspended a suitable abrasive grit. A float (3) is positioned beneath drive shaft (4), both being ma...
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WO/1995/019241A1 |
In a grinding machine for cylindrical workpieces in which the workpiece (18) is rotated against a rotating grinding wheel (14), means (22) is provided for changing the speed of rotation of the workpiece and/or of the grinding wheel durin...
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WO/1995/017994A1 |
Deburring process consisting in placing the part to be trimmed (50) in an essentially closed chamber (10) containing a large number of small balls (30), generating by means of a sonotrode (20) a powerful ultrasonic field so that the ball...
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WO/1995/003154A1 |
This invention relates to the grinding of titanium alloys (20) and particularly to the grinding of titanium alloys (20) using electroplated synthetic diamond wheels (10) with a surface speed (Vs) in excess of 2290 surface meters per minu...
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WO/1995/002486A1 |
A process is disclosed for manufacturing pistons and piston rods, as well as cylinder for hydraulic or pneumatic units. The sliding surface of a finely trimmed cylindrical semi-finished product made of an aluminium alloy is hard anodized...
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WO/1994/029077A1 |
A method of polishing an object is disclosed. In one embodiment, as shown in the figure, the method comprises the steps of creating a polishing zone (10) within a magnetorheological fluid (2); determining the characteristics of the conta...
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WO/1994/027780A1 |
A process for polishing a workpiece. The process comprises the steps of: (a) placing a structured abrasive article bearing precisely shaped abrasive composites on at least one major surface thereof in contact with a surface of a workpiec...
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WO/1994/026467A1 |
Apparatus for sanding or polishing comprising; a working head which is mounted for sanding/polishing movement relative to the surface to be treated and includes means for attachment of an abrasive or polishing material, a feed line for d...
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WO/1994/012284A1 |
A technique for removing loose powder (31) from the interior surfaces of a ceramic mold (17) made using layer manufacturing processes, such as three-dimensional printing processes. The interior of a mold (17) can be filled with water (21...
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WO/1994/011152A1 |
The invention concerns a method of cooling parts of large surfaces, in particular parts of painted surfaces before further treatment. The invention calls for the cooling to be carried out by contacting the relevant part of the surface wi...
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WO/1994/011142A1 |
The invention relates to a method for producing a hole in a workpiece consisting of a fibre-reinforced composite material. The central axis of the hole shall pass through a predetermined point onthe surface of the workpiece and shall als...
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WO/1994/008756A1 |
Polishing compositions and methods for removing scratches and other imperfections from a variety of plastic surfaces in order to improve the clarity and optical quality of the plastic surface are disclosed. Such polishing compositions in...
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WO/1994/004313A1 |
A method of polishing an object is disclosed. In one embodiment, the method comprises the steps of bringing the object (14) into contact with a fluid (11); moving at least one of the object (14) or fluid (11) with respect to the other; a...
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WO/1994/001256A1 |
An ultrasonic machine wherein a minute processing pressure generated between a tool and a work is detected and a speed for feeding the tool is numerically controlled, so that an optimum processing pressure can be constantly produced, on ...
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WO/1993/024272A1 |
A common way of shaping a metal workpiece by the removal of material therefrom involves rubbing contact, as experienced in a conventional wedge-shaped metal or ceramic cutting tool or in abrasive rubbing using grinding wheels. In convent...
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WO/1993/023200A1 |
The invention relates to a method for machining and forming transcurrent openings in fibre-reinforced composite materials. Openings with damage-free edges can be formed with high precision by positioning a rotating grinding tool (5) in a...
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WO/1993/023192A1 |
The invention relates to a method for machining and forming transcurrent openings in fibre-reinforced composite materials. Openings with damage-free edges can be formed with high precision by positioning a rotating milling tool (5) in a ...
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WO/1993/019895A1 |
The description relates to a honing tool which oscillates at its natural frequency when ultrasonically excited. The free length is a whole multiple of half the ultrasonic oscillation wavelength. The formation of a working outline (K¿A?)...
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WO/1993/015877A1 |
In a device for grinding workpieces, in particular workpieces made of ceramic materials, by means of a grinding wheel (24) or the like, the workpiece (23) is oscillated transversely to the machining direction during grinding. At least on...
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WO/1992/007687A1 |
According to a process for machining bores of workpieces, a honing tool provided with an abrasive coating and radially pressed against the wall of the bore carries out simultaneous rotary and reciprocal movements. In addition to the reci...
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WO/1992/007686A1 |
According to a process for machining bores in workpieces, a honing tool provided with an abrasive coating and radially pressed against the wall of the bore carries out simultaneously a rotary and a reciprocal movement. In addition to the...
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WO/1991/012110A1 |
In the process of internally grinding bores with the aid of a slightly conical grinding wheel (15) in a computer controlled manner, the rotational axis (14) of the grinding wheel is adjusted to a small angle (alpha) in relation to the ro...
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WO/1991/008863A1 |
A method of machining a workpiece (14) using an active fluid and a tool (12) positioned substantially out of contact with a surface of said workpiece (14) which is to be machined utilises the combination of the shape of said tool (12) an...
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WO/1991/007253A1 |
In the process of the invention, the commutator (1) is first set in rotational motion about its longitudinal axis (3). Its surface is then machined with an abrasive body in the form of a cup wheel (5) rotating about an axis (7) which mak...
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WO/1990/005044A1 |
A method of honing, polishing, reducing, or otherwise abrading, workpiece surfaces utilizing a visco-elastic abrasive medium (18) in situ between the workpiece (10) and a displacer member (14). Said displacer member (14) having surfaces ...
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WO/1990/000187A1 |
The enhancement of rock fragmentation and rock excavation by neutralizing the rock surface charge with respect to the drilling, tunneling, cutting, grinding, or polishing fluid. Water-soluble, high-molecular-weight, nonionic polymers are...
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WO/1989/011111A1 |
A coupler component is formed by embedding an optic fibre (not shown) of fluoride glass in a slot (2) in a substrate (1) of a crown glass or flint glass which has a hardness similar to that of the fibre. The slot (2) has a convex base an...
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WO/1989/008535A1 |
Ultrasonic polishing without substantial loss of fine resolution and detail is provided by employing a tool (2) of a more ultrasonically abradable material than the workpiece, (4) as the oscillating driver of a liquid abrasive slurry. Th...
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WO/1989/004731A1 |
The device comprises an electromagnetic system provided with an additional pair (3) of pole shoes (5), which are mounted opposite the first pair (2) and are shifted in relation to the latter along the longitudinal axis (01-01) of the par...
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WO/1989/003278A1 |
A tool support structure for an abrading tool in an ultrasonic machining tool which consists of a sleeve member (32) attached to a tool assembly support structure (18) at a node point on the assembly and extending along the sonotrode (16...
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WO/1989/003279A1 |
An orbital table assembly having a top plate (10) which can be made to orbit in a predetermined orbital path without rotating, and having a fixed base plate (20) under said top plate and a linkage plate (30) between the two other plates,...
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WO/1988/010174A1 |
A work table used for effecting machining using a rotary abrasive tool. The work table comprises a table (3) for mounting a work (W) and a based (1) mounted on a table (2) of the machine. The table (3) is supported on the base (1) via a ...
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WO/1988/009242A1 |
Process for grinding the edges of glass sheets (15), (16), especially small sheets, whereby the processing movement is made, manually or mechanically, by the sheets (15), (16) instead of by the grinders (13), (14), said grinders being ei...
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WO/1988/003459A1 |
According to the ultra-precise machining method for machining a revolution surface (240) on a workpiece (204) held in position by means of the rotor of a workpiece-holder spindle (1), which rotor is mounted through active magnetic bearin...
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WO/1988/002670A1 |
A powder pressurizing mechanism in a device for powder-abrasive descaling of rolled steel comprises a working organ interacting with an arrangement (5) for its movement towards the surface of the rolled steel (2) to be descaled. The surf...
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WO/1988/000506A1 |
An apparatus and method for in situ concave base curve detection which is especially useful in the lathe. The apparatus and method utilize a laser beam (33) and a photo-diode detector (46) to effect a precise detection of the vertex (14)...
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WO/1987/002924A1 |
Grinding with known grinders such as corner, belt, or vibratory grinders poses insoluble problems, such as the grinding of inner edges set at an angle to each other for example in retainer strips of window and door glasses. A portable gr...
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WO/1987/000080A1 |
Scratch-free polished diamond is obtained by rubbing a surface of the diamond to be polished against a smooth complementary diamond surface with sufficient pressure and velocity to heat the surface being polished above the spontaneous th...
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WO/1985/005060A1 |
A magnetoabrasive machining device comprises a mechanism (4) providing for oscillations of pole shoes (2, 3) and designed as a shaft (13) with eccentric bushes (14, 15) reciprocally turned by 180o, each of them carrying a pole shoe (2, 3).
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WO/1984/001276A1 |
A domestic electric product which can operate when it is connected to a power source comprises an electric cord which can be connected to the product at the proximity terminal and to a power source at a remote terminal, and an ON/OFF swi...
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WO/1983/004322A1 |
Dressing-grinding process for electronically controlled grinding machines for round or plane grinding of workpieces. With a view of maintaining a constant effective rough depth during the grinding process, having free choice of the rotat...
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WO/1983/003994A1 |
A method and apparatus for abrasively machining a workpiece (12) includes the establishment of an eddy-current in the workpiece (12) at an area (33) where an abrasive tool (14) contacts the workpiece (12). Heretofore it has not been poss...
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WO/1983/000832A1 |
The tool (2) of the device comprises a plurality of cylindrical holes (13) which are precisely parallel to the drilling direction. Said device allows to obtain simply and with a high precision cylindrical portions (15) of any cross-secti...
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WO/1982/004214A1 |
To obtain a precision sharpening of tools provided with cutting elements of polycrystalline synthetic diamond by means of an abrasive wire, the abrasive diamond disc of a known grinding or sharpening machine is replaced by an abrasive wire.
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WO/1982/003591A1 |
Abrasive liquid jet cutting is provided by disposing abrasive particles (32) in positionally supported form, as on a carrier (30), such as sandpaper (31), between the liquid jet nozzle (22) and the workpiece (26). The particles are inter...
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WO/1980/002525A1 |
The ends (14, 16) of cylindrical bushings (10) in which pins rotate bear relatively heavy loads. This can lead to a slight internal deformation of the bushing (10) which can interfere with free rotation of the pin. Such a problem is enco...
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