Abstract: The present invention provides a drum or rotor wheel hub having a cast hub having a machined pilot in a flange portion and a machined pilot in a cylindrical portion, and a cast portion which separates the cylindrical pilot from the flange pilot, whereby a machined radii is not incorporated in the pilot construction.

Abstract: There are provided a method of manufacturing a molding die that can prevent occurrence of a trouble, such as break of a sand mold when a master mold is pulled out, and a molding die that can clearly transfer a pattern onto a molding. A meshed member is fixed to an entirety or part of a molding surface of a master mold, a sand mold having a molding surface with a protrusion and recess pattern thereon is fabricated by using the master mold, and a molding die having a molding surface with the protrusion and recess pattern thereon is cast by using the sand mold. The meshed member is made up of a flexible synthetic resin sheet having a number of mesh openings.

Abstract: The present invention comprises a medical device having a support structure made from alternating layers. One or more layers may be made by direct metal laser sintering. One or more layers may be made by introducing nitrogen into a previously formed layer via excimer laser nitriding.

Abstract: A planing head, cylindrical body for a planing head and a method of manufacture thereof are provided. The planing head includes a cylindrical body having an axis of rotation, an outer surface around the axis of rotation, and opposite first and second end faces. A plurality of blade assemblies is arranged along the outer surface. A plurality of grooves is provided in the outer surface and each groove is configured to receive a respective one of the plurality of blade assemblies. A hydraulic pressure system for supplying a hydraulic pressure to each of the blade assemblies is provided. The hydraulic pressure system includes a plurality of transverse channels for receiving a pressurised hydraulic fluid and a plurality of oblique channels hydraulically linking the plurality of transverse channels. Each transverse channel extends at least partially through the cylindrical body.

Abstract: A tool for fine machining of work pieces involving metal removal is proposed having at least one cutter (13) for preliminary machining with a geometrically defined cutting edge (15) and having at least one cutter (21) for final machining with a geometrically defined cutting edge (23). The characteristic of the tool is that the cutter (13) for preliminary machining is part of a preliminary machining stage (3) and the cutter (23) for final machining is part of a final machining stage (5) and that an interface (9) located between the preliminary machining stage (3) and the final machining stage (5) is provided with a first flat surface (27) and a second flat surface (29) which are located on the preliminary machining stage (3) and the final machining stage (5) and which has a device (11) ensuring the coaxiality of the preliminary machining stage (3) and the final machining stage (5) to each other.

Abstract: A method of manufacture a cup face with different thickness distribution is cutting a slice metal board with predestination shape from a metal board and stamping the slice metal board into an uneven metal board with predestination shape of rough and uneven on it then, milling one side of the uneven metal board to produce a board with different thickness. The final step is pressing the metal board with different thickness into a cup shape to form a cup face with different thickness distribution.

Abstract: A work treatment installation comprises several side-by-side machine tools and at least one work supply and discharge device. It further comprises a work transport device which bridges both of them and comprises a displaceable and vertically sliding lifting skid with a work grab. The work transport device comprises lowering stops for the lifting skid. They are fixed between charge and discharge positions of the machine tools and designed for engagement and disengagement in the charge and discharge positions.

Abstract: Numeric control bore for boring an eyeglass lens and corresponding method. The bore comprises a bedplate (1), attachment device (3) for the lens (5), rotation device (9) for the lens (5) according to a first axis (7) (first degree of freedom), and a support column (11) with a head (15), wherein the attachment device (3) and the support column (11) can be moved between each other (second degree of freedom). The support column (11) has a first end linked to the bedplate (1) being capable of rotating about a second end (third degree of freedom) and the head (15) is linked to the column (11) by translation structure (fourth degree of freedom). The apparatus only has these four degrees of freedom in order to fix the relative position between the head (15) and the lens (5).

Abstract: A method of manufacturing a face with different thickness distribution is cutting a slice metal board with predestination shape from a metal board and stamping the slice metal board into an uneven metal board with predestination shape of rough and uneven on it then, milling one side of the uneven metal board to produce a board with different thickness. The final step is pressing the metal board with different thickness to form a face with different thickness distribution.

Abstract: There is provided a method by which a member having an undercut in the inner peripheral portion thereof can be formed readily. To form a material (1) formed with a recess (2) and the undercut (3) by using a swaging device, while the material (1) is first gripped by a damper (11), and a mandrel (12) is inserted into the recess (2) of the material (1). The mandrel (12) used has an outside diameter equal to the inside diameter of a blind hole of an aimed product (fuel injection nozzle). Then, the material (1) is pushed in by the mandrel (12) to a position at which the material (1) abuts on a stopper (13), and the outside surface of the material (1) is struck by swaging dies (8) to perform a swaging operation. This swaging operation reduces the inside diameter of the recess (2) to the outside diameter of the mandrel (12), with the undercut (3) left.

Abstract: A torque transmitting tool is machined by registering the torque transmitting tool using a shoulder between the shank and the out-of-round drive portion of the tool as a reference. First and second seating surfaces are milled on first and second opposed surfaces of the tool, and then first and second bores are drilled into the drive stud, starting from the first and second seating surfaces, respectively. The first and second bores intersect within the drive stud to form a stepped diagonal bore in the tool. Alternately, all machining operations are performed from one side of the tool.

Abstract: An edge-machining device in particular plastic spectacle lenses (L) has two aligned holding shafts (14, 16) rotatable with a controlled angle of rotation (?B) about a rotational axis of a workpiece (B) between which the lens may be clamped and a tool spindle (12) rotationally drives a combination tool (10) about a rotational axis of a tool (C) running parallel to the rotational axis of the workpiece. The holding shafts and the tool spindle may be moved with position control towards each other in a first axial direction (X) and optionally parallel to each other in a second axial directions (Z) perpendicular to the first axial direction. The combination tool can be swivelled with a controlled angle of rotation (?C) about the rotational axis of the tool by means of the tool spindle so that a lathe tool (36) provided on the combination tool may be brought into a defined lathe machining engagement with the edge of the lens.

Abstract: A method to join different materials through the creation of holes which allow entry of stay bolts is described. The method includes making slots on the plane of any material, the depth of these slots being equal to half the thickness of the plane, plus the length of the radius of the stay bolt or stud to be entered, plus a tolerance margin. The slots have a length as required by its end use and are made on two or more sides of the plane, in an alternate manner, so that the slot made on one side overlaps by a few millimeters the slot made on the opposite side creating a space for the passage of a stay bolt or stud that serves as the anchorage for the various pieces that make up an object to be realized.

Abstract: An adapter is for mounting an electrical switching apparatus, such as a circuit breaker, on the back panel of an enclosure, such as a switchgear cabinet. The back panel has at least one aperture. The adapter includes a first end portion coupled at or about the aperture of the back panel, an engaging portion engaging and securing the circuit breaker to the adapter, a fastener, and a second end portion disposed distal from the first end portion and including an elongated slot. The elongated slot receives the fastener in order to couple the adapter to the back panel when the fastener is fastened, while enabling adjustment of the adapter and the circuit breaker coupled thereto, with respect to the back panel, when the fastener is unfastened. The first end portion, the engaging portion and the second end portion form a single piece adapter. An enclosure assembly is also disclosed.

Abstract: Method of manufacturing multi piece curved molding from planar material including the steps of, milling locating holes in the bottom side of sheet material proximate ends of curved sections, milling curved section from sheet material including the finished outer radius, the finished inner radius and milled ends, milling the profile to produce the profiled top side on curved section, placing locating holes in corresponding locating pins in a precision cut off fixture and precision cutting ends of curved section thereby producing a precision cut end and discarding waste portion.

Abstract: A machining method for manufacturing structures includes a preprocessing step (11), a clamping step (13), a machining step (15) and an extracting step (19), which are performed in that order. The preprocessing step is performed to get workpieces (20a, 20b, 20c and 20d) for forming a plurality of structures. In the clamping step, fixedly clamping a plurality of workpieces on a multiple workpiece mounting device (30) and rotatably installing the multiple workpiece mounting device on machining equipment (50). In the machining step, machining the workpieces by the machining equipment to get structured workpieces. In the extracting step, extracting a plurality of structures from the structured workpiece. The invention is also related to an above-described multiple workpiece mounting device comprising a plurality of platforms (38) and a rotation axis (L1).

Abstract: This disclosure is directed to an adjustable knockout rod for use in conjunction with injection molding machines. The knock-out rod disclosed herein is preferably formed of a round bar having a plurality of annular notches or undercuts formed at uniform intervals along the length of the bar. The knock-out rod passes through a stationary platen and is retained in position relative to the stationary platen by a split collar. The split collar is designed to be inserted into the stationary platen in more than one orientation thereby effecting adjustment of the knock-out rod a distance and interval less than the distance between the adjacent notches on the rod. Additionally, the quick adjusting knockout rod disclosed herein is provided with means for fine adjustment of the overall length of the rod.

Abstract: The present invention provides a hobbing machine. The hobbing machine includes a clamp fixture adapted to retain a gear blank. A motor is operatively connected to the clamp fixture and is configured to rotate the clamp fixture and the gear blank together at a predetermined speed. A rotatable cutter is translatable into engagement with the gear blank and is configured to cut the gear blank and thereby produce a plurality of gear teeth. A de-burring tool is translatable into engagement with the gear blank and is configured to remove burrs from the gear blank as the gear teeth are being cut. A motorized spindle is operatively connected to the de-burring tool, and is configured to power and rotate the de-burring tool at a predefined speed to optimize the removal of the burrs.

Abstract: Alternative methods are described for machining a root-canal instrument, such as a root-canal reamer, which includes a working section having three flutes forming three cutting lips which are located at the apices of an isosceles triangle.

Abstract: A method for the manufacture of components composed of difficult-to-cut materials for gas turbines, in particular for manufacturing integrally bladed rotors for gas turbine aircraft engines, by producing recesses with one or more side walls, the recesses forming flow channels and the side walls forming blade surfaces, whereby material in the region of the flow channels is removed by a drilling process, and after the drilling process is finished the remaining material in the region of said flow channels is removed by a milling process. The unique combination of a drilling process followed by a milling process completing the material removal reduces significantly the manufacturing time.

Abstract: A method of making a metering orifice disc from a work piece is disclosed. The work piece has a first surface spaced apart from a second surface over a first distance. The metering orifice disc has an outer diameter from 4 to 6 millimeters with at least one orifice disposed through the metering disc of about 75 to 150 microns in effective diameter. The method can be achieved by removing material from one of the first and second surfaces of the work piece to define a recessed surface between first and second walls, the recessed surface being located between the first and second surfaces of the work piece; and forming an orifice in the recessed surface proximate a shortest distance between the first and second walls to define two channels that extend towards the longitudinal axis, the orifice extends through the recessed surface to one of the first and second surfaces. A method of making a valve seat is also described.

Abstract: A support member is useful for supporting membranes such as solid polymer electrolyte ion exchange membranes such as those used in electrochemical cell applications. The support member has a first lattice pattern on a first side of a single piece of material. A second lattice pattern on a second side of the single piece of material cooperates with the first lattice pattern to establish a plurality of flow passages across the material. Each lattice pattern has a corresponding plurality of recesses that extend partway through the material and overlapping portions of the recesses define the flow passages. In a disclosed example, the monolithic support member lattice patterns are established using chemical etching.

Abstract: A method of manufacturing an impeller includes the steps of: (a) forming an impeller having a plastic disc body and magnetisable material distributed and encapsulated within the body; (b) testing the imbalance of the impeller; (c) removing plastic material from the impeller to compensate for the tested imbalance; and (d) magnetising the magnetisable material to have an annular array of alternating poles.

Abstract: A method for manufacturing a bevel gear member, comprises the steps of providing a bevel gear blank having a gearhead, forming gear teeth on the gearhead of the bevel gear blank by simultaneously cutting gear tooth top land, gear tooth side profile and a bottom land to form an unfinished bevel gear member using a face hobbing process, and machining at least one selected surface of the unfinished bevel gear member using the top lands of said gear teeth as a datum for centering the unfinished bevel gear member, thus forming a finished product. The method is applicable for manufacturing the bevel gear member both with shaft axially extending from the gearhead and without the shaft. The bevel gear members manufactured with this method exhibit reduced runout and require simpler, less expensive tooling.

Abstract: The aim of the invention is to produce a rounding off on a diesel piston comprising a combustion recess and valve recesses that lie at a slant in relation to the piston floor. The rounding off should not significantly increase particle emissions. To this end, the edge of the recess is rounded off in the area of the valve recesses in a special machining phase, the cutting edges of the cutting tool being guided in one or more planes that are parallel to the inclined valve recess surface.

Abstract: The invention is directed to a method of fabricating an artificial limb. The method includes the steps of: cutting one or more superelastic materials to a desired length, forming the superelastic material into a desired resting configuration of an artificial limb using a fixture that includes the desired resting configuration, heating the superelastic material to between 300 degrees Celsius and 750 degrees Celsius, cooling the superelastic material, and removing the superelastic material from the fixture.

Abstract: This invention relates to a method for molding a bicycle tube and the method comprises the following steps: first, providing a tube and then controlling thickness of the tube by a drawing and extruding process for forming a molding portion. Second, plasticize other portions of the tube into particular diameters and shapes by plasticizing processes. Third, hydroform the molding portion of the tube by a mold and a hydroforming device for forming particular three-dimensional shapes. By applying to the above-mentioned method, the tube could be molded into a three-dimensional, unique and delicate shape.

Abstract: The present invention relates to methods of making microstructured laminae for replication and apparatus. In a preferred embodiment, the invention relates to machining V-shaped grooves on individual lamina forming cube-corner microstructures.

Abstract: A method of manufacturing a mattress including providing a foam block, convoluting the foam to form a tongue extending longitudinally along the foam block, and removing at least a portion of the tongue, to thereby form a channel within the foam block.

Abstract: A method for forming a base plate in which the base plate is stamped out of a sheet of metal. One of a relief surface and a boss are formed in the base plate by press working the base plate.

Abstract: A backlight etching process, and more particularly the etching of a solid, semi-translucent base material, to form an exact image within the material. The base material is preferably translucent and most preferably an acrylic-based product, such as DuPont Corian®. Specific portions of the etched image can be digitally altered to enhance the quality of the image. Lines may be added to better delineate between areas of the image, or specific areas may be masked and altered. The etched image can also be colorized by cutting exact forms or silhouettes of colored film using digital techniques and adhering the silhouette to the smooth, back side of the etched image. A backing sheet may then be applied over the colored silhouette, to strengthen the product and protect the silhouette, to the etched image product.

Abstract: One embodiment of the present invention is a compact, low-cost, lightweight, versatile and easy-to-operate, processor-controlled carving and multi-purpose shaping device (“PCCMPS machine”). The PCCMPS machine that represents one embodiment of the present invention is configured, in part, similarly to common, commercially available portable wood planers and ubiquitous laser and ink-jet computer printers, with work pieces fed into the PCCMPS machine in a horizontal direction. The PCCMPS machine includes a motor-powered cutting head that can power detachable bits to drill, cut, shape, and rout a work piece under processor and computer control. The cutting head may be translated, under processor control, back and forth across the surface of the work piece in a direction perpendicular to the direction in which the work piece is fed into the PCCMPS machine and moved by motor-powered rollers.

Abstract: A method of machining a plurality of intersecting bores in an object, the method comprising steps of machining a first bore, plugging the first bore, machining a second bore so as to intersect the first bore, and unplugging the first bore.

Abstract: A method of fabricating a spherical cavitation chamber. Depending upon the chamber's composition and wall thickness, chambers fabricated with the disclosed techniques can be used with either low or high pressure systems. During chamber fabrication, initially two spherical half portions are fabricated and then the two half portions are joined together to form the desired cavitation chamber. During the fabrication of each chamber half, the interior spherical surface is completed first and then the outer spherical surface. Prior to joining the two spherical cavitation chamber halves, the surfaces to be mated are finished, preferably to a surface flatness of at least ±0.01 inches. Brazing is used to join the chamber halves together. The brazing material is preferably in the form of a ring-shaped sheet with outside and inside diameters of approximately the same size as the cavitation sphere's outside and inside diameters. Preferably the brazing operation is performed under vacuum conditions.

Abstract: A liquid application material that is capable of forming an oxidized insulator as a result of baking is applied onto a support substrate to produce an object of processing. Then, a mold having projection structures with intervals of nanometers is pressed against the applied liquid material to produce corresponding recess structures. Thereafter, the applied liquid material is baked in oxygen-containing gas or oxidized in ozone or oxygen plasma to make it electrically highly resistive. Subsequently, a layer to be anodized is formed on said oxidized insulator. Then, the layer to be anodized is actually anodized in an acidic solution to form fine holes that are aligned with the respective recess structures in the anodized layer. Accordingly, fine recess structures can be manufactured with ease.

Abstract: A grab picks up a hollow workpiece and displaces it to a machining station where, while the workpiece is held in the grab, a tool is engaged from outside with a first surface of the workpiece to finish the first surface. Then the workpiece is reoriented by the grab and engaged by a tool with a second surface of the workpiece to finish the second surface. Another tool is fitted through a large-diameter hole of the workpiece and positioned inside the workpiece adjacent a small-diameter hole and a drive spindle is coupled through the small-diameter hole to the other tool to machine an inner surface of the workpiece adjacent the small-diameter hole. These steps are then repeated to finish another interior surface of the workpiece adjacent another small-diameter hole. Finally the workpiece is displaced from the machining station and released from the grab.

Abstract: A multiple pass machining method for removing excess flash from a formed part to approximate a desired, curved profile on the formed part includes moving the part relative to a grinder in p straight passes, wherein a first pass removes a portion of flash is at an angle E relative to a stack axis of the part and each remaining straight pass is at an incremental angle F. A portion of the flash is thereby removed to approximate a master profile on an abraded edge of the part.

Abstract: A method of forming a low-friction, helically ridged skirt surface of an engine piston comprises cutting a continuous groove in a piston body rotating about axis so that adjacent groove turns intersect as ridges and carry lubricating oil which forms a film on the ridged surface. The groove is cut by way of a diamond tool tip traversing along the axis. Whereas in a known, standard finish, the ridges have sharp peaks that can rupture the oil film, the tool is here modified to include a planing tip fixed spatially with respect to the tip so that after formation each ridge is planed flat to provide a plateau between groove turns that exerts less film rupturing pressure against a cylinder wall while defining a uniformly flat outer surface for the piston. The cutting may vary the piston diameter toward the ends of the body to effect barreling in which the relationship between plateau width and groove depth vary.

Abstract: A layout tool and a means for using the tool to fabricate multi-segment elbows and offset joints from rectangular cross-section fibrous air ductboard material. The tool has a triangular main body having at least one structural feature that defines a plane. At least one flange is connected to the main body, is oriented substantially perpendicular to the main body plane, and forms the first side of the triangle. The main body includes a first outer straight edge extending at an angle of 67.50 degrees from the flange forming the second side of the triangle. A second outer straight edge extending at an angle of 78.75 degrees from the flange forms the third side of the triangle. An inner structure of the main body forms a straight edge perpendicular to the plane of the flange. The outer angled and interior straight edges enable 22.5- and 45-degree miter joints to be easily marked and cut in pre-formed fibrous air duct.

Abstract: A facing material for a power transmission-absorption assembly is shown and described. In one embodiment, the facing material includes a plurality of first channels having a first, deep depth and a plurality of second channels having a second, shallow depth. One or more of the plurality of second channels may be superimposed or in fluid communication with the first channels to enable fluid to flow across the surface 12c and through the first channel to achieve the desired fluid flow characteristics. The second channels may be defined by a connector that has varying shapes to further facilitate the desired fluid flow characteristics. The material may be used in a power transmission-absorption environment such as on a blocker synchronizer ring, clutch plate or the like.

Abstract: Production process for waterproofed foam mattresses, starting from a foam material body (1) in which a plurality of passing through holes (2) are carried out in the bigger faces and some passing through holes (3) with a smaller diameter are carried out along the body (1), through which holes (3) some rods (4) are incorporated to be fastened on a supporting frame (5), and to spray the body (1) in this position with the waterproofing material, letting the latter drip off in a sloped position till the mentioned waterproofing material is gelled.

Abstract: The invention relates to a device for producing a book page index for facilitating the search for certain sections in a book. The device includes a bearing surface (1) on which a pile (3) of pages is placed. According to the invention, an index notch or thumb section (31) is to be formed on the upper region of the pile, along the front edge (7). To this end, preferably a circular, disk-shaped cutter head (17) is used, the cutter head having a cutting contour (21) on the circumference thereof. The device includes at least one displacement device (19) for moving the support and the cutter head towards or away from each other, so that the notch or thumb section to be formed can be produced on the front edge by means of the cutter head. The height of the thumb index can be set by lowering the bearing surface.

Abstract: A shutter manufacturing method provides a coated manufactured wood substrate sheet. A plurality of attached shutter components are identified. The attached shutter components are configured edge-to-edge and end-to-end so as to comprise the substrate sheet. The attached shutter components are separated into a plurality of prefinished shutter components, and the prefinished shutter components are incorporated into a shutter assembly.

Abstract: The invention comprises a method for manufacturing a shaft-hub connection. This connection includes a brake disk having a hub and a drive shaft having a bell, wherein the drive shaft comprises a catching portion having a polygonal outer contour. This portion extends into an aperture in the brake disk having a corresponding inner polygonal contour. The method comprises the procedural steps of green machining via turning of the brake disk and the drive shaft, hardening of the drive shaft, final finishing via turning of the brake disk and final finishing via turning of the drive shaft to obtain the final products with only one chucking action.

Abstract: A process for manufacturing ratchet wheels including the steps of: forming a cylindrical forging billet by hot or cold forging, the forging billet having a thru hole of inter-communicating recesses which are pre-formed in a forging die; providing a broach having teeth formed thereon; machining the forging billet into a workpiece having a sidewall with two annular grooves on the sidewall; forming a semi-product having a driving recess which is complementary in shape to the teeth by operating the broach through the workpiece along the thru hole; and forming a finished product having a plurality of teeth on a sidewall thereof by milling the semi-product.

Abstract: A housing for a vehicle component and a method for making the same. The housing comprises a housing body having an interior surface and an exterior surface. The outer wall of the housing is formed with a plurality of longitudinal splines and a plurality of longitudinal troughs located between confronting splines. A spiral groove is cut into the interior surface of the outer wall so as to remove material sufficient to engage at least one of the troughs thereby forming a plurality of apertures having a closed periphery and extending longitudinally along the outer wall.

Abstract: A monolithic rail clip, formed from a single piece of material, comprising a plurality of integrated hooks spaced along an angled rail body for use in constructing a seat base. A pair of the rail clips are attached to a pair of opposing members of a frame of the seat base so that the integrated hooks form opposing pairs. A plurality of springs are attached to the hook pairs and stretch between the opposing members to define a resilient structure for supporting a furniture seat. Each rail clip is constructed by forming a plurality of tabs extending from one longitudinal edge the rail body and bending the tabs to form the plurality of hooks. The integral construction of the hooks reduces the assembly time of each rail and seat base. The monolithic construction of the rail clip provides additional structural rigidity to the seat base.

Abstract: A raw parallelepiped metal piece is pressed into a closed mold to provide a nut blank that has a generally square pilot portion (14) for piercing a metal panel, the nut blank having a pair of flanges (16) that continue from opposite side walls (15) of the pilot portion. Then, the nut blank is coined to form ridges (20) extending along and integral with opposite upper edges of the side walls (15), before pressed within an open mold so that the ridges are swaged out sideways to form shoulders (21). A lateral groove (22) is defined between below each shoulder and in the side wall. A rough bore (23) will be formed axially through the pilot portion (14), before tapped to have a female thread (24) in the inner periphery of the bore.

Abstract: In one aspect of the invention a method of manufacturing a thin wall isogrid casing by a chip machining process comprises the steps of: positioning a substantially cylindrical casing (10) on a support (20); the support having a substantially continuous cylindrical support surface (22) engaging at least part of the inner or outer surface of the casing; and machining a plurality of recessed pockets in the said inner or outer surface of the casing opposite the surface engaged by the said support; whereby the support reacts loads acting on the casing by the chip machining tool during machining to minimise distortion of the casing and tearing of the pockets being formed. With this method isogrid pockets (14) can be chip machined, by drilling and/or milling etc, with pocket wall thicknesses of less that 1 mm.

Abstract: A method for cutting a blade root retention slot in a turbine engine disk element includes forming a precursor slot in the element. The precursor slot has first and second sidewalls and a base. A rotating bit is passed through the precursor slot to machine the base. The bit rotates about an axis off-normal to a direction of passing.