Abstract: A method for manufacturing a rotary tool for chip removing machining with at least one chip flute that extends in the longitudinal direction of the tool. The method involves preparing a mixture of a cemented carbide, cermet or ceramics powder and a carrier, such as a polymer, and placing the mixture in an extruding machine. The mixture is extruded in a feed direction by means of a die to form the diameter of the mixture body. The mixture body passes against a chisel which forms a chip flute in the outer periphery of the mixture body by chip-removing machining. When the chisel is displaced away from the mixture body, a non-fluted shaft portion is formed. By rotating the mixture body while contacted by the chisel, a helical chip flute can be formed. Alternatively, the body could be twisted after a straight flute has been formed, whereupon the flute becomes helical.

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 method is provided for cold forming center web or webless tapered piston pins in one forming sequence. The method eliminates secondary operations such as but not limited to machining, annealing, coating and secondary forming. The method includes the steps of cutting a metal rod into a substantially cylindrical slug piece, die extruding the slug piece to form a first cavity in the slug piece, optionally die extruding the slug piece to form a second cavity in the slug piece, piercing the slug piece to form the slug piece into a hollow cylindrical piece, die extruding the hollow cylindrical piece at either end to form a hollow cylindrical piece having a taper on an internal surface of the hollow cylindrical piece at either end.

Abstract: Hollow fan blades for turbo fan gas turbine engines are formed of two separate detail halves. Each detail half has a plurality of cavities and ribs machined out to reduce weight. The floor and opposite interior walls of each cavity are machined simultaneously. The configuration minimizes the number of cutter plunge cuts for the internal cavities, and maximizes cutter size, in order to minimize the time required to machine them. These detail halves are subsequently bonded and given an airfoil shape in the forming operation.

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: A preform includes an airfoil stub and a dovetail hub. The hub first undergoes electrochemical discharge machining to form a rough dovetail. The airfoil stub undergoes electrochemical machining to form an airfoil. The rough dovetail then undergoes electrochemical discharge machining to form a rough tang. The rough tang is finish machined to form a dovetail extending from the airfoil in a unitary rotor blade.

Abstract: A turbine engine structure is provided that includes a wall having an exterior surface defining an internal passage. A locating hole extends through the wall from the exterior surface to the passage. A film hole is recessed in the exterior surface and adjoins the locating hole. The film hole and locating hole are in communication with the passage. The locating hole is formed during the casting process in which a core is supported with a locating pin. Upon removal of the locating pin, the locating hole is formed. The locating holes can be used to determine a position of features of the structure for subsequent processing operations of the structure. For example, film holes are machined in the exterior surface, such as by an electrical discharge machining process, to intersect the locating holes.

Abstract: Methods and systems of fabricating a polymeric stent are disclosed herein.

Abstract: An improved method for production of a rotor (10) of a centrifugal compressor, wherein the rotor (10) is produced from a monolithic disc; this disc is worked in a radial direction by at least one tool (20) of a numerical control machine, such as to remove shavings, so as to produce radial cavities (12) in the rotor (10).

Abstract: A notch-locating fixture for forming notches at predetermined locations along a needle wire used in a surgical suturing apparatus includes a base having at least one semi-circular recess shaped and dimensioned for receiving the needle wire. The fixture also includes a cover member including at least one aligned slot formed therein in a manner providing a grinding wheel with access to needle wire held between the base and the cover member. The fixture further includes a securing structure selectively coupling the base to the cover member.

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: In a surface finishing method for a stainless steel material, excimer irradiation is made on a surface of the stainless steel material by emitting ultraviolet light to improve wetness. Then, a surface finishing is applied on the surface of the stainless steel material wherein the wetness is improved. In manufacturing a gasket, the stainless steel material or plate is cut in a predetermined shape, and holes and bead are formed in the metal formation plate. Then, the plate may be assembled with other plate.

Abstract: A method of forming a rotating blade for a cutting machine that can attach to either symmetrical arbors or asymmetrical arbors. The arbor mounting hole has five sides arranged in a cut gem configuration. The arbor mounting hole is symmetrical on either side of a mid-line. However, the mid-line of the arbor mounting hole need not pass through the geometric center of the blade. Inserts are provided. The inserts fit into the arbor mounting hole. Each of the inserts defines an aperture for receiving a drive arbor of a different configuration. The apertures are off-set in the inserts, to compensate for the off-set arbor mounting hole, so that the apertures are disposed at the geometric center of the blade when any insert is placed in the arbor mounting hole.

Abstract: The metal plate joining method for using electric resistance welding in combination with an adhesive and joining at least two or more metal plates includes the steps of: continuously coating the adhesive on at least one flange out of flanges respectively formed in the plurality of the metal plates; then superimposing the one flange on the other flange; making a protrusion formed in any one flange out of the two flanges abut with the other flange; and forming a gap between the two flanges at a flange inner edge side of the protrusion, wherein while suppressing a move of the adhesive to a flange outer edge by the protrusion, the two flanges push the gap and are welded by the electric resistance welding.

Abstract: An improved tool and method for enhancing the surface of a heat transfer tube are provided. The tool, which can be easily added to existing manufacturing equipment, includes cutting bits that may be retracted with a housing. The cutting bits include a cutting edge to cut through the surface of a tube and a lifting edge to lift the surface of the tube to form protrusions. A method for enhancing the inner surface of the tube includes mounting a tool on a shaft, positioning the tool in the tube and causing relative rotation and axial movement between the tube and the tool to cut at least partially through at least one ridge formed along the surface of the tube to form ridge layers and lift the ridge layers to form protrusions.

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: The present invention relates to a method for fabricating a roller follower assembly, comprising the steps of fabricating a lash adjuster body, fabricating a roller follower body, fabricating a leakdown plunger, fabricating a socket, wherein at least one of the lash adjuster body, roller follower body, leakdown plunger, and socket is fabricated at least in part by forging.

Abstract: A rolling die is provided for forming a rod member with a ball portion. The rolling die includes a first die member and a second die member facing the first die member. Each of the first die member and the second die member has a process surface. The process surface has a start forming portion having a process tooth configured to bite the rod member and an arc surface portion proximate the process tooth, an intermediate forming portion having the process tooth and a curved surface proximate the process tooth, the curved surfaced being configured to press the rod member to form an arched shape, and a finish forming portion having the process tooth and a hemispheric groove configured to press the rod member into the arched shape to form the ball portion.

Abstract: There is provided a method for manufacturing a stator core for an axial air-gap electronic motor, in which core sheets are laminatedly fixed while being shifted with predetermined intervals. The method includes a step in which first side surfaces in the circumferential direction (first slot surfaces 25) of the first to nth (n is a positive integer) core sheets are blanked out of a mother sheet 60 by moving first blanking punches 360 with predetermined intervals via a first control means 700; and a second blanking step in which second side surfaces in the circumferential direction (second slot surfaces 26) of the first to nth (n is a positive integer) core sheets are blanked in succession by moving a second blanking punch 460 with predetermined intervals via a second control means 700.

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: A method for fabricating fillings that are utilized in refiners for the purpose of refining paper fiber stock. The filling manufactured in accordance with the method of the present invention includes a base body, an overlay template on the base body and processing elements. The processing elements are inserted into the overlay template that is equipped with corresponding openings. A solid connection is subsequently produced, for example, by way of high temperature welding. Advantages of the method include the selection of optimum materials for the processing elements; the fabrication process is flexible; and the method is especially economical, when measured by the quality of the produced fillings.

Abstract: Improved process for manufacturing ring-type metal joints for high pressure ducts, characterized because it presents the following steps: a) oval bar manufacturing and b) ring-type metal joints manufacturing, wherein the oval bar manufacturing comprises the following steps: submitting a round metal bar to a sharpening treatment before it is drawn through a die and forming the oval bar; cutting, rolling, and bending the oval bar and welding the profile; submitting the joint to an electrolytic coating treatment.

Abstract: A grating forming method for forming a fine grating with a grating period of at most 1 ?m on a surface of a blank material including (1) feeding realatively a diamond cutting tool and the blank material in a groove extended direction while rotating the diamond cutting tool about the axial line and (2) cutting the surface of the blank material with a blade tip part of the diamond cutting tool to form the grooves while rotating and feeding the diamond cutting tool. When the fine grating with the grating period of “P” ?m is formed and the feed amount per revolution of the diamond cutting tool is set to be “S” ?m, the feed amount per revolution “S”, with which the diamond cutting tool is fed in the groove extended direction while rotating the diamond cutting tool about the axial line, is set to satisfy the following conditional expression: S<2.9P3. This conditional are expression is applied to a blank material, a molding die, a molded product, and a master member for manufacturing a molding die.

Abstract: A method of manufacturing an expandable slotted tube fabricated from at least one tubular element and at least two annular elements connected to the opposite ends of the tubular element by means of butt joints wherein axially extending slots are formed at a uniform angular spacing around the periphery of the tube and in longitudinally overlapping relation characterized by cutting said annular elements in a pattern of overlapping positionally fixed slots in accordance with invariable parameters which are pre-determined relative to the dimensions of said annular elements and cutting in said tubular element a pattern of slots that is variable in accordance with measured parameters of the tube so as to achieve the required overlap between said positionally fixed and variable slots. A machine for carrying out the method is also described.

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: The present invention provides a mechanical broadhead in which the blades slide within longitudinal channels that are formed in the ferrule. The blade is formed having a transverse boss extending from the flanks which are received in a channel formed in the ferrule. A camming surface is formed on the inward edge of the blades cooperate with a compliant member to provide controlled radial movement of the blades as they slide rearwardly within the channel on the ferrule.

Abstract: A method is provided for forming grooves in a polishing pad useful for planarizing a substrate in a chemical mechanical planarization process. The method maintains average velocity as a function of bit diameter to enable groove formation using a rotating bit, whereby grooves can be formed at a higher rate while maintaining high groove quality and low defectivity.

Abstract: A knuckle 1 has a through hole 3 provided in a fitting hole 4 thereof. A cutting tool 9, which has a diameter being larger than that of the through hole 3 and also has a cutting part having a hemispherical leading end portion, is caused to go into the through hole 3 at an angle at which the tool 9 does not touch the remaining part of the knuckle 1. Then, a burr formed at a fitting-hole-side open end portion 7 of the through hole 3 is removed by rotating the cutting tool 9 while the leading end portion thereof is made to obliquely abut against the open end portion 7 of the through hole 3.

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: An airfoil for a gas turbine engine blade includes a plurality of film cooling holes extending through its outer surface. The film cooling holes are formed by defining at least a first datum structure and a second datum structure, and then forming each film cooling hole at a location on the airfoil outer surface relative to the first and second datum structures. As a result, each film cooling hole has a centerline extending therethrough that forms a compound angle with respect to a tangent to the outer surface, and the distance between the centerlines of each film cooling hole is at least a predetermined minimum distance.

Abstract: A scuffing device (30) arranged to impart texture to a plastic pallet surface (12) having a plurality of cutting members (34) axially aligned and mounted adjacent each other, the cutting members (34) having radial toothed edges for cutting into and imparting texture to the plastic pallet surface upon rotating engagement therewith. The device further having a shaft upon which the cutting members are mounted for providing rotational movement to the cutting members.

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 prehardened valve seat insert and a process for forming a prehardened valve seat insert for insertion into a cylinder head or an engine block of an internal combustion engine. The process comprises the steps of (a) forming the valve seat insert; (b) precision machining the valve seat insert to precise tolerances so that the valve seat insert can be installed in one of the cylinder head and the engine block without the need for additional seat machining; and (c) treating the valve seat insert to form a wear resistant surface layer prior to inserting the valve seat insert into one of the cylinder head and the engine block.

Abstract: A method of manufacturing an entire piston, piston heads for example, especially intended for internal-combustion engines, wherein in an initial manufacturing step a blank that will eventually constitute the piston is preliminarily forged along a prescribed axis, shaping appropriate contours, and wherein in at least one subsequent manufacturing step the preliminarily shaped piston is finally forged along at least one other axis, creating additional contours.

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 seal ring of a shaft seal has micro-topography depth features, such as wavy faces or radial grooves, formed in the seal face which define a hydrodynamic seal region between opposing seal faces. The micro-topography depth features are formed by an excimer laser shaped such that the beam shape at least has non-linear side edges which define convergent side areas of the beam. The convergent side areas are defined by side edge sections which converge toward each other and preferably are non-linear. For example, the beam shape may be circular or elliptical. The laser beam first cuts repeatedly along the same beam path to define a cut with an increasing depth, whereby the laser beam is shifted incrementally sidewardly to define multiple adjacent beam cuts that form the micro-topography feature such as a valley of a wavy face, a radial groove or the like.

Abstract: A method for repairing a stationary turbine nozzle segment having at least one vane disposed between outer and inner structural bands includes providing an engine-run turbine nozzle segment having at least one vane disposed between outer and inner bands, wherein the outer band and the vanes are previously replaced components of the segment and the inner band is an original component of the segment; separating the inner band from the nozzle segment; repairing damage in the outer band and/or the vane; and joining the outer band and the vane to a newly manufactured replacement inner band segment. The replacement inner band segment includes: a structural inner band; and an integral structural collar adapted to receive an inner end of the at least one vane.

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: A device 10 and method for forming a non-tapered end 12 of a gypsum board 14 into a tapered configuration or portion 16 includes a rotary drive tool 18 that imparts rotary motion to a tool bit 20 removably secured thereto, a pair of oppositely disposed angle members 22 having cooperating base portions 24 configured to promote attaching a dust collection collar 17 to the base portions 24, the angle members 22 disposing and guiding the rotating tool bit 20 between outer paper walls 28 of a non-tapered end 12 of the gypsum board 14 to ultimately severe portions of gypsum from the non-tapered end 12 thereby forming a recess 32 without damaging the outer paper walls 28 of the gypsum board 14.

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: 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: The invention aims at providing a tool change magazine for laser beam machine to improve machining efficiency of a laser beam machine by installing a tool change magazine containing laser machining tools equipped with a torch and a nozzle replaceably attached to the tip of the torch. A setup station 100 for laser machining tools is installed outside a machining area of a laser beam machine. It includes a tool station 200 of the laser beam machine. The tool station 200 of the laser beam machine is equipped, for example, with four tool change magazines 220. A laser machining tool 60 is returned from a machining head 50 to a tool change magazine 220 and a new laser machining tool 60 from a tool change magazine 220 is mounted on the machining head 50.

Abstract: The method and apparatus for drilling holes and optionally inserting fasteners of the present invention provide for efficiently drilling holes through a multiple-layer structure because the layers are securely held together during the drilling by an electromagnet and a clamp, each on opposite sides of the structure. The electromagnet and clamp hold the layers together so tightly that burrs do not form within the holes and debris does not accumulate between the layers and, therefore the layers do not have to be disassembled after drilling. In addition, the apparatus and method of the present invention provide for initially drilling the hole with a countersink and for inserting a fastener into the hole, through the electromagnet, immediately after drilling the hole, such that the hole does not have to be revisited after reassembly and drying of the sealant in order to drill a countersink and/or insert a fastener.

Abstract: The invention provides a burr removal apparatus for laser beam machine which removes burrs formed on the top surface of a workpiece. When, for example, pilot holes PH are produced in a workpiece W by a laser machining tool 60, molten particles scatter to form whisker-like burrs Wb on the top surface of the workpiece. A whisker-like burr removal apparatus 700 has a machining head 710 which is raised and lowered by a cylinder 720. It removes the whisker-like burrs Wb with a machining tool 730.

Abstract: An asymmetrical tool is provided to form an asymmetric orifice for an orifice disc. The asymmetric orifice is initially formed with a wall portion extending generally perpendicular to first and second generally parallel surfaces of the orifice disc. The wall of the orifice is deformed by the tool into an inlet portion contiguous to the first surface and a transition portion spaced from the first surface. The transition portion of the wall extends substantially perpendicular to the first and second generally planar surfaces. The inlet portion of the wall extends at a first oblique angle with respect to the first surface, and the first oblique angle varying with respect to the longitudinal axis. A method of forming the orifice with the tool is described.

Abstract: A module corner assembly wherein a wheel hub is permanently attached to a knuckle and various surfaces on the wheel hub and knuckle are machined in a same fixture utilized in holding the knuckle to deform an end on the wheel hub against a cone of a bearing. When a rotor is thereafter attached to the wheel hub it is also machined in the same fixture such that a perpendicular relationship is established between the axis of the wheel bearing and braking surfaces on the rotor and as a result a desired lateral run out relationship is achieved between the axis of the bearing and rotor surfaces.

Abstract: A backing strip for a windshield wiper assembly includes a pair of rails. Each of the pair of rails includes a body portion and a detent portion. The detent portion includes a cut-out on each side thereof. The cut-outs are generally symmetric with each other and form a pair of hooks on each side of said detent portion. The cut-out on one side of the detent portion of each of said rails is for receiving a claw of the windshield wiper assembly and the hooks on the opposite side of the detent portion of each of the rails are for engaging a windshield wiper blade of the windshield wiper assembly.

Abstract: A cylinder housing (1) is cast with a cylinder wall (2) in the making of a cylinder for an internal combustion engine. The cylinder wall delimits an interior space (3) for accommodating a reciprocating piston and, thereafter, a control window (5) is machined into the cylinder wall (2) as an opening of a transfer channel (4) into the interior space (3). A two-stage machining for forming the control window (5) is provided in order to make possible a rapid and cost effective manufacture of the cylinder. In a first step with a work tool (7) having a rotating primary movement (11), a breakthrough (10) is machined into the cylinder wall (2) and, in a second step with a work tool, the breakthrough (10) is widened to the wanted dimensions of the control window (5).

Abstract: A blade fixing and blade mounting slot arrangement for a gas turbine engine has a mismatch fit along a portion of the length of the blade fixing and slot where contact stress would otherwise be maximal.