Abstract: A casting device includes: dies formed with a cavity including an opening at a lower portion; a pressurizing chamber disposed below the dies and containing molten metal and further formed with a sealed space above the molten metal; a cylindrically-shaped stalk having an upper end opening communicating with the opening of the cavity and a lower end opening immersed into the molten metal contained inside the pressurizing chamber; a pressurizing means configured to supply a gas to the sealed space of the pressurizing chamber to pressurize the inside of the pressurizing chamber; a depressurizing means configured to discharge a gas from the cavity to depressurize the inside of the cavity; and a control device.

Abstract: A sliding nozzle device that can reduce any damage such as surface roughness and chipping in a nozzle hole surroundings of a used plate.

Abstract: In one embodiment, the present invention may be a method of forming a porous and/or dense article from metal powder, including adding to a mold a first feedstock comprising an agglomerated metal powder and an agglomeration agent; forming said first feedstock into a green state dense article; and removing said agglomeration agent. Furthermore, the present invention may include a second feedstock including an agglomerated metal powder, a space filling material and an agglomeration agent which may be formed into a green state porous article. The present invention also includes a dense and/or porous article manufactured by various methods, as well as methods for creating the dense and porous feedstocks. Moreover, the present invention may include an article which may be a medical implant.

Abstract: A method for the manufacturing of metallic matrix composites through plastic working is disclosed. In the method, the plastic working charge is in the form of wires, tape or tapes or foil, which is the first component being covered with the second component or components with granulation less than 100 ?m, after which they are connected by reciprocal surface contact, forming weaved bundles, and then the connected elements which form the charge material advantageously undergo initial rolling or drawing and in all cases the principal process, which is extrusion performed on a rolling mill with circumferential grooves, where between rollers a closing matrix is placed, rotating in reverse to its axis by an angle of ±20° advantageously ±12°, with a frequency up to 50 Hz, advantageously 15 Hz.

Abstract: A polygon machining method whereby first polygon machining using a polygon cutter is carried out on a workpiece, followed by machining using tools other than the polygon cutter, then second polygon machining using the polygon cutter again.

Abstract: A cutting tool holder has a holder body and a vibration damping weight assembly. The holder body has first and second side surfaces, and a top surface extending there between, and a cutting portion located at a front end of the holder body at the top surface thereof. A weight aperture opens out to the first and second side surfaces and has an aperture inner surface. A weight assembly is located within the weight aperture, having a first weight portion with a through hole, a second weight portion with a threaded hole, a damping ring located along the aperture inner surface, and a fastening member configured to connect together and urge the first and second weight portions towards one another, such that the contact surface of each weight portion presses against the damping ring, within the weight aperture.

Abstract: An entry sheet of the present invention is used in cutting a fiber reinforced composite material and/or a metal. Moreover, in a cutting method of the present invention, cutting of a fiber reinforced composite material and/or a metal is performed using the entry sheet.

Abstract: A helical blade cutter including multiple linear blades attached to an outer circumferential surface of a round body having an outer surface formed into a cylindrical circumferential surface. The blades tilt to a given helix angle ? from a straight line on the outer circumferential surface parallel to a rotational central axis O. Blade attachment surfaces are formed on the outer circumferential surface of the round body at given intervals in the circumferential direction. The blade attachment surfaces tilt to an angle same as the helix angle ? of the blade while tilting to a rake angle ? in a direction of an elevation angle from a tangent to the outer circumferential surface. The blades are each attached to a blade attachment part through intervention of a chip holder that allows detachment of the blade.

Abstract: A transmission mechanism of a fret sawing machine includes a saw frame provided thereon with two parallel transmission units, and a fretsaw connected between the two transmission units. Each transmission unit consists of a driving rod, which has one end connected with a power unit and another end extending radially to form an eccentric portion. A connecting rod is pivotally connected with the eccentric portion, having another end pivotally connected with a sliding block that is connected with a fretsaw. Thus, the driving rod can drive the sliding block to carry out linear reciprocating motion and actuate the fretsaw to do sawing work.

Abstract: A chain saw (1) comprises an endless saw chain (11) and a saw bar (9) with a peripheral track for the saw chain (11). The saw chain (11) has a plurality of chain links and/or chain link components, in particular cutter links (29), drive links (23) and/or tie straps (35). At least one of the tie straps (35) comprises a cavity (43) or notch arranged at a first lateral surface (45) thereof. The first lateral surface (45) faces a lateral surface of at least one adjacent chain link or chain link component.

Abstract: A tap sleeve for accepting one of a variety of different tap tools for use to repair thread damage to an item being assembled on an assembly line. The tap sleeve is configured with a handle portion configured to be held by the worker, and a base portion for securing the tap tool and limiting the depth in which the tap tool can be inserted, while avoiding damaging the surface of the item being worked and while preventing the hand of the user from slipping toward the tap tool. Optionally, a removable head can be used to adapt the tap sleeve for use with another tool, such as a wrench, to provide additional torque.

Abstract: Even if a machining gap between a wire electrode and workpiece is in a short-circuit state at a start of machining by a wire electric discharge machine, a high-frequency voltage in a pulse shape is applied and a small current is supplied to an extent that the wire electrode is not fused only in an initial fixed time at the start of machining. Then, the short circuit is released, though instantaneously, and a discharge occurs in that instant and the short circuit state is eliminated by discharge repulsion thereof and therefore, machining can be started.

Abstract: A system of manufacturing a component comprises forming a component on a conductive build plate. The component defines at least one access port and includes an inner surface that defines at least one internal passage. The system further includes forming at least one electrode within the at least one internal passage, wherein the at least one electrode is electrically isolated from the component. An electromotive force is applied to the at least one electrode to facilitate smoothing the inner surface.

Abstract: An apparatus for electrochemically machining a workpiece has a tool having a surface-machining part and a piercing part. The parts are relatively fixed and jointly movable. A power source oppositely polarizes the tool and the workpiece and an electrolyte is fed to the workpiece. The tool is pressed against the workpiece such that the surface-machining part forms a shaped surface on the workpiece and simultaneously the piercing part forms or enlarges a bore in the workpiece.

Abstract: A method produces a component of a vacuum interrupter, such as a cover or a shielding part. These components are produced having a layer of a solder material. According to the method, the coating with the solder material is carried out by thermal spraying, in particular cold gas spraying. The components can be partially coated and only in a partial region. After developing the solder connection, the material flows out of the connection regions into the developing solder connection. Coating by thermal spraying allows larger components, such as housing components, to be partially coated and, in comparison. If electro-thermally silver-coating avoided, a more cost-effective production of the vacuum interrupter is possible.

Abstract: Methods for joining a first blank and a second blank are disclosed, wherein at least one of the first and second blanks comprising at least a layer of aluminum or of an aluminum alloy. Methods may comprise selecting a first portion of the first blank to be joined to the second blank, and selecting a second portion of the second blank to be joined to the first portion; welding the first portion to the second portion, while supplying a metal powder to a weld zone, wherein the first portion and the second portion of the blanks and the metal powder in the weld zone are melted during welding and the metal powder is mixed with the melted first and second portions, and wherein the metal powder is an iron based powder comprising gammagenic elements. The disclosure further relates to blanks and products obtained using such methods.

Abstract: A welding system having a welding power supply, a wire feeder coupled to the welding power supply, and a welding torch coupled to the wire feeder and configured to output wire from the wire feeder is provided. In particular, the welding system includes a wireless module (e.g., gateway) disposed within a component of the welding system, or as an independent component within the welding system. For example, the wireless module may be disposed within the welding power supply, the wire feeder, or the welding torch. The wireless module is configured to wirelessly transmit to and receive welding information, such as operator identification information, from a wireless personal device. The wireless personal device is uniquely associated with a welding operator operating the welding system.

Abstract: The purpose of the present invention is, in gas shielded arc welding using an active gas and flux-cored wire with primer-coated steel plates as a base material, to suppress occurrences of poor appearance in welded parts caused by pores originating in the primer. A welding method for a welded article positions a first steel plate and a second steel plate formed from primer-coated steel plates in a T shape and welds each of corner parts formed in two locations.

Abstract: A welding electrode is mounted in a tool holder that is part of a handle apparatus. The handle apparatus has an electrode power connection. The handle apparatus has a housing defining a haft that can be grasped in the hand of an operator. A vibrator is mounted inside the haft. The vibrator includes a force transmitter in the form of a cantilevered beam. The cantilevered beam is electrically conductive and carries power to the tool holder. The tool holder has a handle that permits the welding rod to be rotated about its axis as it wears during deposition of welding rod material on the object work piece.

Abstract: An open-pipe weld shielding arrangement for an electric resistance welded steel pipe or tube includes a shielding-gas blowing nozzle and a gas flow rate controller. The shielding-gas blowing nozzle includes a gas outlet disposed at a position 5 to 300 mm above upper ends of portions to be welded, and the gas flow rate controller controls the flow rate of the shielding gas blown from the gas outlet to 0.5 to 50 m/sec.

Abstract: Shifts of a reference point C in a robot coordinate system among three postures of a seam welding apparatus 10 are found, and calibration data is obtained (STEP 1). Correction data is found from the calibration data based on deformation of elastic units 22a due to weight of the seam welding apparatus 10 in accordance with the posture of the seam welding apparatus 10 relative to a robot 20 (STEP 5). Teaching data is corrected based on the correction data (STEP 6).

Abstract: An oval nugget can reliably be obtained with this indirect spot welding method. In this indirect spot welding method, an electrode end portion of a welding electrode includes a tip of the welding electrode, and as viewed from the tip, the electrode end portion has a two-step dome shape formed by a first curved surface with a curvature radius r1 (mm) located within a range of a circle of radius R (mm) centering on the tip and a second curved surface with a curvature radius r2 (mm). 2?t?R?6?t (1), 30?r1 (2), and 6?r2?12 (3), where t is the sheet thickness (mm) of a thinner metal sheet.

Abstract: The invention relates to a method for joining at least one sandwich sheet to at least one functional element made of metal, wherein the at least one sandwich sheet has two metallic outer layers and a thermoplastic layer arranged between the metallic outer layers, wherein at least the region to be joined of the at least one sandwich sheet is heated in such a manner that the thermoplastic layer softens, the plastic layer is pushed out of the joining region by the outer layers being pressed together, and the outer layers of the at least one sandwich sheet are joined, in particular welded, to the functional element by an electric current flow between a first and a second electrode.

Abstract: A method includes forming a first pocket in a first sheet of material and a second pocket in a second sheet of material, pressing the first pocket and the second pocket together at a nonlinear interface, and welding material of the first pocket and the second pocket at the interface.

Abstract: A laser processing device comprises a laser light source emitting the laser light, a spatial light modulator modulating the laser light emitted from the laser light source, and a converging optical system converging the laser light modulated by the spatial light modulator at the object. A plurality of rows of modified regions include at least an entrance-surface-side modified region located on the laser light entrance surface side, an opposite-surface-side modified region located on the opposite surface side of the laser light entrance surface, and a middle modified region located between the entrance-surface-side modified region and opposite-surface-side modified region. When forming the middle modified region, the spatial light modulator displays an axicon lens pattern as a modulation pattern so as to form converging points at a plurality of positions juxtaposed close to each other along a laser light irradiation direction.

Abstract: Disclosed herein is a laser beam spot shape detection method for detecting a spot shape of a laser beam oscillated by laser beam oscillator and collected by a condenser in a laser machining apparatus, the laser beam spot shape detection method including: a concave mirror holding step of holding a concave mirror having a spherical face forming a reflecting face with a chuck table; a focal point positioning step of positioning the focal point of the condenser in a proximity including the center of the spherical face forming the reflecting face of the concave mirror held by the chuck table; a laser beam irradiation step of irradiating a laser beam onto the held concave mirror, and an imaging step of capturing images of reflected light with a camera.

Abstract: Methods and systems for controlling gas atmospheres in three-dimensional laser printing and weld overlay consolidation operations using metallic powders are provided. In one or more embodiments, such systems and methods comprise a printing chamber or laser weld overlay system, a gas supply system, a feed powder system, and one or more sensors employed to control the printing or welding operation. The methods and systems of the invention employ one or more inert gases having a purity greater than or equal to 99.

Abstract: A method (50) of installing a tip cap (42) onto a turbine blade (20). An open tip is prepared (52) by removing a tip cap from a used blade or during original blade manufacture. A tip cap base sheet (24) is formed (54) to cover at least most of the blade tip surface except for a margin (22). A root pass weld (28) is performed (58) around the periphery of the base sheet, thus welding the base sheet onto the blade tip surface. Cladding (34) is applied (60) to the base sheet and the blade tip surface, thus building and fusing the tip cap onto the blade tip, the tip cap formed of cladding and the base sheet. A squealer ridge (44) may then be formed on the tip cap by additive welding.

Abstract: The present invention relates to flux compositions and methods for laser processing volatile alloys. A flux composition contains a metal oxide, a metal silicate, or both; a shielding agent which forms at least one gas upon heating; and a plasma-generating agent, but not a metal fluoride. A process involves applying an energy beam (10) to a flux composition (6) such that the flux composition reacts to form a plasma (14) and a shielding gas (18). An amount of energy applied to the flux composition is controlled to convert the flux composition into a molten slag blanket (16) in the presence of the shielding gas without completely melting an alloy material (4) situated below the flux composition. The molten slag blanket then heats the alloy material by thermal conduction in the presence of the shielding gas to form a pressurized melt pool (22) of the alloy material, which cool and solidifies.

Abstract: A laser processing machine employs a step of forming a pierced hole at a sheet material portion on an inner or outer side of a closed route when a processing to form a hole in the sheet material by cutting along a closed route is carried out. Following this pierced hole a step to perform a cutting process to cut to a predetermined position with a center of the laser beam traversing the closed route and a step of returning, in a condition in which laser irradiation is interrupted, a position of the laser processing head relative to the sheet material to assume a start position lying on the route during a step of cutting to the predetermined position and on the closed route are employed. Thereafter, a step of performing the cutting process from the start position along the closed route is carried out.

Abstract: Welding laser beam is irradiated along welding trajectories set in works, or inspection laser beam is irradiated along scanning trajectories set in a molten pool in the works which has been melted by the welding laser beam. Return light including reflected light from the molten pool in the work, evaporation luminescence generated by melting/evaporating of the work and thermal radiation light radiated from the molten pool in the work is received. A fundamental frequency is detected by conducting Fourier transform on the intensity of the received return light and a welding condition of the welding portion in the work is inspected based on an amplitude under the fundamental frequency and an amplitude under a frequency that is twice as high as the fundamental frequency.

Abstract: The aluminum-free magnesium alloy consists of a composition comprising 1.4 to 2.2 wt. % manganese, 0.4 to 4.0 cerium, 0.2 to 2.0 wt. % anthanum, 0.001 to 5 wt. % scandium, and magnesium as well as manufacturing-related impurities accounting for the remaining content in the alloy that is missing to make up 100 wt. %, and the ratio of cerium to lanthanum being 2:1.

Abstract: Provided is a nickel brazing material having a melting temperature of 1000° C. or less and acid corrosion resistance. It includes 15.0 to 30.0 mass % of Cr, 6.0 to 18.0 mass % of Cu, 1.0 to 5.0 mass % of Mo. 5.0 to 7.0 mass % of P, 3.0 to 5.0 mass % of Si, and 0.1 to 1.5 mass % of Sn, the remainder being Ni and inevitable impurities. and the total of Si and P being 9.5 mass % to 11.0 mass %. It can include additional element selected from the group consisting of Co, Fe, Mn, C, B, Al, and Ti. The content of Co is 5.0 mass % or less, the content of Fe is 5.0 mass % or less, the content of Mn is 3.0 mass % or less, the total content of C, B, Al, and Ti is 0.5 mass % or less, and the total content of these elements is 10.0 mass % or less.

Abstract: Method of trimming weld flash from a weld joint formed between a first component and a second component. The method provides a rotary shear tool having a rotary blade and a second blade. The second blade may be a fixed blade. The method further includes shearing the weld flash from the weld joint by passing the weld flash between the rotary blade and second blade of the rotary shear tool. Also provides a rotary shear tool for trimming weld flash from a weld joint formed between a first component and a second component. The rotary shear tool includes: a rotary blade; a second blade; and a mounting portion for mounting the rotary shear tool on a robotic arm.

Abstract: A method, including: providing a layer of powder material (156) on a substrate (130); and traversing an energy beam (15) across the layer of powder material to form a cladding layer (10), wherein the cladding layer forms a layer of an airfoil. The traversing step includes: starting a first path (40) and a second path (44) of traversal of the energy beam from a common initiation point (48); forming a portion (60) of a first side wall (18) of the cladding layer and a first rib section (24) by traversing the energy beam along the first path and concurrently forming a portion (62) of a second side wall (16) of the cladding layer by traversing the energy beam along the second path; and creating not more than one initiation point (72, 96, 118) for each rib section (24, 26, 28) in the cladding layer.

Abstract: A method, including: providing a layer of powder material (106) on a substrate (12) having protruding rib material (26); and traversing an energy beam (100) across the layer of powder material to form a cladding layer (10) around and bonded to the protruding rib material, wherein the cladding layer defines a layer of an airfoil skin (94).

Abstract: A machining center includes a bearing structure-frame supporting various other parts; an electric spindle mounted on moving arms that translate it and rotate it on main axes; a lower plane or support hinged to the lower part or base of the bearing structure-frame, rotating on a vertical axis, provided with elements or mechanisms holding the lower end of the workpiece; and an upper support rotating on the vertical axis coaxially with the rotation axis of the lower plane or support, having elements or mechanisms that hold the upper end of the workpiece. The lower plane or support and the upper support are rotated simultaneously and synchronously, rotating the workpiece according to a vertical axis. Devices or mechanisms are provided for vertical translation of the upper support, thereby adapting the vertical position of the upper support to the lower plane or support depending on the length of the workpieces.

Abstract: A multi-row magnetic dial assembly that conveys work pieces, such as fasteners, includes a work piece engaging surface disposed around an outer perimeter, adjacent a first dial surface and/or adjacent a second dial surface. Multiple magnets are disposed adjacent the work piece engaging surface to exert a magnetic force on work pieces to magnetically hold them against a dial. The magnets include a first magnet and a second magnet that exert magnetic forces so that the work piece engaging surface magnetically attracts and holds first and second rows (or more) of work pieces, the first row being distal from the second row by a row separation distance. The dial can be oriented in a horizontal plane or a non-horizontal plane. Related methods of operation are also provided.

Abstract: A router attachment assembly including a base plate, a first side support structure and a second side support structure. The base plate has an upper surface and a lower surface. A plurality of router attachment openings extend through the base plate, which are configured to correspond to openings on a router. Fasteners couple the base plate to the router through the router attachment openings. A central router axle opening allows a router axle to pass therethrough. The first side support structure extends from the base plate and defines a front face. The second side support structure extends from the base plate on an opposing side of the central router opening. The second side support structure includes a biasing member biased toward the first side support structure, to, in turn, urge a material extending through the channel toward and into contact with the first side support structure.

Abstract: The invention relates to an insert holder for a tool for turning a machine tool, comprising an insert holder body (2), the head (22) of which is intended to receive a cutting insert (3), characterized in that at least two measurement recesses (4, 5) are provided in the insert holder body (2) on the side of the head (22), said measurement recesses (4, 5) being arranged symmetrically relative to the neutral fiber (6) of the insert holder body (2) and centered on the neutral fiber (6). The measurement recesses (4, 5) have, respectively, a planar bottom (41, 51) that is parallel to the direction (Y) of the component of the tangential cutting force of the insert holder to be measured, and parallel to the longitudinal direction (X, Z) of the insert holder body (2). The insert holder also comprises at least one first strain gauge (71, 72, 73, 74) configured such as to measure the change in shape of the planar bottom (41, 51) of at least one of the measurement recesses (4, 5).

Abstract: A method of making a cutting tap includes: providing an elongate tap body having an axial forward end, an axial rearward end and a central longitudinal axis; securing the axial rearward end of the tap body in a grinding machine; and forming in the axial forward end of the tap body a correction grind and a main flute in one continuous grinding operation. A cutting tap made by the invention is also provided.

Abstract: An apparatus for grinding an elongated workpiece having a plurality of outer surfaces of revolution all centered on a common workpiece axis has a frame and a chuck on the frame for orienting the workpiece with the workpiece axis vertical and for rotating the workpiece about the workpiece axis. Two grinder drive motors on the frame diametrally flank the workpiece axis, are displaceable horizontally and radially of the workpiece axis, and each have a downwardly extending respective vertical drive shaft rotatable about a respective shaft axis, carrying a respective set of at least two vertically and axially spaced grinding wheels, and each having an unsupported and unbraced lower end. The grinders are displaced in respective diametrally opposite horizontal and radial directions for engaging the grinding wheels with the surfaces of the rotating workpiece grinder, such that all the surfaces of the workpiece can be ground simultaneously.

Abstract: A retaining ring can be shaped by machining or lapping the bottom surface of the ring to form a shaped profile in the bottom surface. The bottom surface of the retaining ring can include flat, sloped and curved portions. The lapping can be performed using a machine that dedicated for use in lapping the bottom surface of retaining rings. During the lapping the ring can be permitted to rotate freely about an axis of the ring. The bottom surface of the retaining ring can have curved or flat portions.

Abstract: A power tool has a driving shaft for driving a working element and a clamping device for clamping the working element. The clamping device has a clamping position in which the working element may be fixed relative to the driving shaft and a release position in which the working element can be removed from the driving shaft. An operating member is coupled to the clamping device for moving the clamping device between positions. The clamping device also has a rotating position in which the working element can be rotated by an angle relative to the driving shaft and the operating member has an operating position that corresponds to the rotating position.

Abstract: Disclosed is a slurry supply device including a nozzle configured to eject slurry, a slurry supply unit configured to receive the slurry from the nozzle and to discharge the slurry through at least one slurry hole, a receiving unit configured to allow the slurry supply unit to be mounted, inserted, seated, coupled, supported, or placed therein so as to enable discharge of the slurry from the slurry supply unit, the receiving unit being configured to receive a flowing material around the slurry supply unit and a slurry protection unit configured to enclose a space for passage of the slurry from an exit of the nozzle to an entrance of the slurry supply unit in conjunction with the flowing material.

Abstract: The invention relates to a clamp for seven longitudinal profiles (1, 2, 3, 4, 5, 6, 7) arranged next to one another and oriented in a longitudinal direction (L), said clamp having one clamping jaw (11) and another clamping jaw (12) which are movable towards one another and away from one another, with a receiving area (13) in the one clamping jaw (11), which receiving area has a bearing face (13c) at the bottom for two of the seven longitudinal profiles (2, 3), said bearing face being movable at least in some regions relative to the clamping jaw (11) transversely to the longitudinal direction (L), and with another receiving area (14) provided in the other clamping jaw (12) for the bearing of four others of the seven longitudinal profiles (1, 4, 5, 6).

Abstract: An expandable locking mechanism having a mounting plate and an anchor mechanism.

Abstract: A clamping device includes first and second clamping members. Each of the first and second clamping members has a handle and a jaw. A bend is formed between two ends of the jaw of the first clamping member, and a first angle between the jaw and the handle of the first clamping member is smaller than 180°. Another bend is formed between two ends of the jaw of the second clamping member, and a second angle between the jaw and the handle of the second clamping member is equal to the first angle. The clamping device can be used to clamp a pipe. When the second clamping member is moving from a release position to the clamping position, two clamping portions respectively of the jaws remain parallel to each other such that force is evenly applied to two sides of the pipe.

Abstract: A clamping device includes first and second clamping members. Each of the first and second clamping members has a handle and a jaw. The handle of the first clamping member includes an inner threaded portion extending along a longitudinal axis and an adjusting screw threadedly engaged with the inner threaded portion. The adjusting screw includes a first end having a disengagement preventing portion located in a sliding section between two ends of the handle of the first clamping member. The adjusting screw further includes a second end located outside of the handle of the first clamping member. The disengagement preventing portion of the handle of the first clamping member has a maximal height perpendicular to the longitudinal axis not smaller than a minimal inner diameter of the inner threaded portion perpendicular to the longitudinal axis. The disengagement preventing portion prevents the adjusting screw from disengaging from the handle.

Abstract: A rod box installation tool device, and methods of making and using same. The tool device includes a solid cylindrical main body, a rubber-tipped stud member secured to a first end of the main body, and a square cross-section drive aperture provided at a second end of the main body.