Abstract: Provided is a projection bolt welding method, which involves welding a projection bolt to a steel sheet component by electric resistance welding. The projection bolt includes a shank, a circular enlarged diameter portion, and a welding projection including an initial fusion portion with a tapered portion and a main fusion portion. A ratio of a volume of the initial fusion portion to a volume of a portion of the steel sheet component having the same diameter as a diameter of the initial fusion portion is selected, or a ratio of a circular area of the initial fusion portion to a sheet thickness of the steel sheet component is selected.

Abstract: The invention relates to a method for producing a node by welding at least one first stranded wire comprising individual wires to at least one second stranded wire comprising individual wires, the stranded wires being of different materials, in a compression chamber with adjustable height and width of an ultrasonic welding device, the width being adjusted by means of at least one lateral slide and the height by changing the distance between a sonotrode and a counter electrode of the ultrasonic welding device, the at least one first stranded wire being welded with a higher specific energy, under a higher pressure or with a greater ultrasonic vibration amplitude than the at least one second stranded.

Abstract: In one aspect of the disclosure, an article for filling an opening in an object includes a plug having a body, a first flange, and a second flange. The plug has a trailing end. The first flange is in contact with the body and extends away from the body. The second flange is in contact with the first flange and extends away from the first flange and the body. The second flange is configured to deform toward the body upon installation of the plug into the opening. This deformation of the second flange rotationally and translationally secures the plug in the opening and consolidates the plug in the opening.

Abstract: Provided is a laser welding apparatus that performs welding by irradiating a laser beam onto a welded part, the laser welding apparatus including: a shielding gas supply unit that supplies a shielding gas to the welded part; a gas feed rate controlling unit that controls a flow rate of the shielding gas; a light intensity measurement unit that measures a light intensity of plasma light emitted from the welded part; and a rate-of-change calculation unit that calculates a rate of change of the light intensity measured by the light intensity measurement unit. The gas feed rate controlling unit controls, according to the calculated rate of change of the light intensity, the flow rate of the shielding gas supplied to the welded part.

Abstract: A laser welding method is capable of easily restraining poor welding when spatters adhere to a protective glass of an optical system. The laser welding method includes a step of calculating a decrease-amount of the laser power before laser welding is performed by irradiating a welding portion of a workpiece with the laser beam having a predetermined power. The step of calculating the decrease-amount includes irradiating the welding portion with an inspecting laser beam having a power smaller than the predetermined power, receiving a return beam of the inspecting laser beam, measuring an intensity of the return beam, and comparing the intensity of the return beam with a standard intensity to calculate an amount of decrease in power of the inspecting laser beam at the welding portion.

Abstract: Methods, systems, and apparatuses are disclosed for automated dynamic laser peening of a workpiece. In one embodiment, a system for automated dynamic laser peening of a workpiece comprises: a laser; a laser beam delivery system; and a dynamic platform system.

Abstract: A cladding method for a valve seat in a cylinder head blank includes a combustion chamber, an intake port or an exhaust port communicating with the combustion chamber, and an annular countersunk groove formed in an opening end of the port on the combustion chamber side, the method being for forming a cladding layer by irradiating metal powder supplied in the countersunk groove with a laser beam. A gas flow regulating wall is provided, which projects from the countersunk groove to an inner side of the countersunk groove and to the combustion chamber side, gas is sprayed during irradiating with the laser beam, and the gas is flown by the gas flow regulating wall from the inner side to an outer side of the countersunk groove.

Abstract: An additive manufacturing apparatus is disclosed. The additive manufacturing apparatus comprises a linear rail having a length. The linear rail is one of rotatable or revolvable in a horizontal plane about a vertical axis. The additive manufacturing apparatus further comprises an electromagnetic energy source movably coupled to the linear rail and movable in a polar coordinate system having a radius R.

Abstract: A process is provided for forming a plurality of apertures in a fiber-reinforced composite object using a laser. The apertures include at least a first aperture and a second aperture. During the process, a scanner head of the laser is operated from a location to selectively scan a laser beam over the object to form a first portion of the first aperture and to form a first portion of the second aperture. The scanner head is also operated from the location to selectively scan the laser beam over the object to form a second portion of the first aperture and to fowl a second portion of the second aperture.

Abstract: A method includes disposing a braze material between a first body and a second body. The braze material includes a first composition and a second composition. The second composition has a melting point higher than the first composition. The method also includes heating the braze material to a brazing temperature between the melting points of the first and second materials and maintaining the braze material at the brazing temperature for a period time to transform a transient liquid phase to a solid phase, forming a bond between the first body and the second body. A braze material for securing solid bodies includes a first composition and a second composition. The first composition includes at least one element selected from the group consisting of indium, tin, zinc, and magnesium. An earth-boring tool includes a first body, a second body, and a braze material bonding the second body to the first body.

Abstract: A method includes disposing a braze material adjacent a first body and a second body; heating the braze material and forming a transient liquid phase; and transforming the transient liquid phase to a solid phase and forming a bond between the first body and the second body. The braze material includes copper, silver, zinc, magnesium, and at least one material selected from the group consisting of nickel, tin, cobalt, iron, phosphorous, indium, lead, antimony, cadmium, and bismuth.

Abstract: A bonding material of a silver paste includes: fine silver particles having an average primary particle diameter of 1 to 50 nanometers, each of the fine silver particles being coated with an organic compound having a carbon number of not greater than 8, such as hexanoic acid; silver particles having an average primary particle diameter of 0.5 to 4 micrometers, each of the silver particles being coated with an organic compound, such as oleic acid; a solvent containing 3 to 7% by weight of an alcohol and 0.3 to 1% by weight of a triol; a dispersant containing 0.5 to 2% by weight of an acid dispersant and 0.01 to 0.1% by weight of phosphate ester dispersant; and 0.01 to 0.

Abstract: An arc system is described which includes a power generator, a shielding gas source, a torch and a shielding gas monitor contained adjacent to or within the torch. The torch is connected to the power generator for producing an arc with a workpiece, is connected to the shielding gas source for providing shielding gas to an arc locations, and includes a flow sensor mounted within or adjacent the torch body for monitoring the flow of shielding gas through the torch and optimally providing feedback control of the shielding gas flow.

Abstract: A device for supplying small parts has a large-diameter disc that is driven and rotates on a horizontal axis thereof, a hopper disposed close to the large-diameter disc at at least a lower half side of one of side surfaces of the large-diameter disc, wherein the hopper is configured to accommodate therein the small parts in bulk, a first magnet embedded in the one side surface of the large-diameter disc so as to be exposed at the one side surface of the large-diameter disc, wherein the first magnet attracts, at an outer circumferential side edge portion of the one side surface of the large-diameter disc, one of the small parts accommodated in an accommodation space of the hopper, and a small-diameter disc disposed close to the large-diameter disc at an upper side of the large-diameter disc.

Abstract: A clamping and positioning device includes a base, a rotary member, a moving assembly and an elastic member. The rotary member is rotatably disposed on the base and includes a stopping surface facing the base. The moving assembly includes a moving member movably disposed on the base to have a first and a second position. When being at the first position, the moving member is pressed against the rotary member to allow the stopping surface to apply a normal force to the base; when being at the second position, a gap is formed between the moving member and the rotary member so the normal force applied by the stopping surface of the rotary member is released from the base. The elastic member has two ends connected to the base and the moving member, respectively. The elastic member normally causes the moving member to be at the first position.

Abstract: A mechanism, configured for positioning a work piece, includes a support member and a position assembly. The position assembly includes a guiding member and a positioning sleeve sleeved on the guiding member. The guiding member detachably is coupled to the support member. The positioning sleeve is detachably coupled to the support member. The guiding member is partially exposed from the positioning sleeve.

Abstract: A machining apparatus includes: a workpiece spindle having a retainer that retains a workpiece having a noncircular peripheral surface; an adjustment unit that adjusts a retaining force between the workpiece and the retainer; a phase determination member that can determine a phase of the workpiece; and a phase determination detection unit that detects completion of the phase determination. The retaining force is a retaining force for phase determination until the phase determination is completed, and the retaining force is switched to a retaining force for machining which is larger than the retaining force for phase determination after the phase determination is completed.

Abstract: In one example, a method including controlling milling of a component via a milling system, the milling system including a spindle, a tool holder coupled to the spindle, the tool holder configured to receive a milling tool; and the milling tool configured to remove at least a portion of the component via milling while the milling tool is rotated by the spindle and tool holder, wherein the milling system is configured to conduct an electrical signal between the milling tool and component during milling of the component when the milling tool is not broken; monitoring the electrical signal conducted between the milling tool and component; and determining whether the milling tool is broken based on the monitored electrical signal.

Abstract: Systems and methods for treating concrete, which includes the steps of wetting a surface of concrete with a amorphous colloidal silica, allowing time for the colloidal silica to penetrate the concrete surface, and cutting the surface of the concrete with a bladed tool wherein the longitudinal blade portion is positioned approximately at an angle between 30 degrees and 90 degrees relative to the surface of the concrete.

Abstract: A grinding method for grinding a plurality of platelike workpieces at a time is provided. The workpieces are attached to a support member and held on a chuck table. A grinding wheel is brought into contact with the workpieces to grind the workpieces at a time. The grinding wheel includes a disk-shaped wheel base having a first surface, a plurality of first abrasive members arranged annularly on the first surface of the wheel base, and a plurality of second abrasive members arranged annularly on the first surface of the wheel base radially inside the first abrasive members in a concentric relationship with the first abrasive members. The radial spacing between the first abrasive members and the second abrasive members is set larger than the minimum spacing between any adjacent ones of the workpieces.

Abstract: A grinding disk, surfacing platform, apparatus and method adaptable to a rotary concrete surfacing machine. A media disk is pivotally attached to a surfacing platform to maintain a substantially coplanar alignment of an abrasive or polishing media surface and the underlying substrate to be polished. The surfacing platform engages with rotating arms of the machine in operation and may be readily be detached by rotating in the opposite direction of operation.

Abstract: There are provided a cutting/polishing tool that may be readily manufactured and have an improved cutting performance, and a manufacturing method thereof. The method for manufacturing the cutting/polishing tool including at least one cutting/polishing body may comprise preparing a tool body, and forming a cladding layer including cutting material particles by spraying, onto an outer surface of the tool body, the cutting material particles and a metal powder having a specific gravity greater than a specific gravity of the cutting material particles while heating the outer surface of the tool body using a heating device installed in a lower side of the outer surface of the tool body so that the metal powder is deposited on the outer surface of the tool body, wherein the cladding layer configures the at least one cutting/polishing body.

Abstract: A CMP structure for CMP processing and a method of making a device using the same are presented. The apparatus comprises a polishing pad on a platen table, a head assembly for holding a wafer against the polishing pad, wherein the head assembly includes a retaining ring, a sensor for sensing the depth of grooves on the retaining ring and a controller for determining an update pressure to apply to the retaining ring based on the depth of the grooves and applying the updated pressure to the retaining ring during processing.

Abstract: A substrate cleaning apparatus capable of removing fine particles from a substrate, such as a wafer, without using a chemical liquid is disclosed. The substrate cleaning apparatus includes: a substrate supporting structure for supporting the substrate; a vibration device secured to the substrate supporting structure; a vibration controller configured to cause the vibration device to vibrate at a natural frequency of the substrate; and a cleaning liquid supply nozzle configured to supply a cleaning liquid onto the substrate.

Abstract: A method of planarizing a wafer includes pressing the wafer against a planarization pad. The method further includes moving the planarization pad relative to the wafer. The method further includes conditioning the planarization pad using a pad conditioner. Conditioning the planarization pad includes moving the planarization pad relative to the pad conditioner. The pad conditioner includes abrasive particles having aligned tips a substantially constant distance from a surface of substrate of the pad conditioner.

Abstract: A method for operating a polishing head is provided. The method includes keeping a stator of at least one electromagnetism actuated pressure sector stationary with respect to a carrier head, and electromagnetically and linearly moving an active cell of the electromagnetism actuated pressure sector with the stator to linearly move the active cell with respect to the carrier head.

Abstract: The present invention relates to a polishing pad and a method for making the same. The polishing pad includes a base layer and a polishing layer. The base layer has a first surface and a second surface. The polishing layer is disposed on the first surface of the base layer and has a plurality of second fibers, a polymeric elastomer and a plurality of pores. The second fibers are arranged irregularly and cross each other to form the pores, and the polymeric elastomer is attached to the second fibers and does not fill the pores.

Abstract: A polishing pad comprising a resin-containing polishing cloth having a polishing cloth base impregnated with a polyurethane resin and silicon carbide, wherein the silicon carbide has a particle diameter in a range from 0.2 to 3.0 ?m, and the content of the silicon carbide in the resin-containing polishing cloth is in a range from 60 to 500 parts by mass relative to 100 parts by mass of the polishing cloth base.

Abstract: A carrier head includes a base, a substrate mounting surface, a retaining ring secured to the base, and a plurality of stacked shims located between the base and the retaining ring. The retaining ring has a bottom surface for contacting a polishing pad during polishing.

Abstract: A CMP structure for CMP processing and a method of making a device using the same are presented. The apparatus comprises a polishing pad on a platen table; a head assembly for holding a wafer against the polishing pad, wherein the head assembly includes the retaining ring; a sensor for sensing the step height between the retaining ring and its membrane and a controller for adjusting the movement of the retaining ring based on the step height between the retaining ring and its membrane to ensure the step height remains at a fixed value as the retaining ring wears out.

Abstract: The present invention is related to a workpiece processing apparatus and method for processing a warping workpiece. The workpiece processing apparatus comprises a base, a carrier and an adjusting device. The carrier comprises a loading surface and a plurality of suction units, wherein each of the plurality of suction units is disposed inside the carrier. The adjusting device comprises an adjusting surface, and at least one adjusting portion is protruded from the adjusting surface. A first surface of the workpiece partially contacts to the loading surface of the carrier. At least one of the adjusting device and the carrier is movably connected to the base. By generating a relative movement between the adjusting device and the carrier, the first surface contacts the loading surface in a more even condition so as to make the workpiece become an adjusted workpiece.

Abstract: An article of footwear is made by (a) providing a component having a contaminant on a receiving area of a surface; (b) blast cleaning the receiving area of the surface by propelling an abrasive alkali, alkaline earth, or ammonium compound in a pressurized gas stream against the receiving area; (c) applying a pressurized gas stream free of the abrasive compound, liquid water, and organic liquid to the receiving area to remove any residual abrasive compound from the receiving area of the surface to produce a cleaned receiving area; (d) applying a layer of material to the cleaned receiving area, wherein the material is selected from the group consisting of adhesives and coating compositions; and (e) incorporating the component into an article of footwear.

Abstract: A polishing composition contains a polishing accelerator, a water-soluble polymer including a constitutional unit originating from a polymerizable compound having a guanidine structure such as dicyandiamide, and an oxidant. The water-soluble polymer may be a water-soluble polymer including a constitutional unit originating from dicyandiamide and a constitutional unit originating from formaldehyde, a diamine or a polyamine.

Abstract: Embodiments relate to polycrystalline diamond compacts (“PDCs”) and methods of manufacturing such PDCs in which an at least partially leached polycrystalline diamond (“PCD”) table is infiltrated with a low viscosity cobalt-based alloy infiltrant. In an embodiment, a method includes forming a PCD table in the presence of a metal-solvent catalyst in a first high-pressure/high-temperature (“HPHT”) process. The method includes at least partially leaching the PCD table to remove at least a portion of the metal-solvent catalyst therefrom to form an at least partially leached PCD table. The method includes subjecting the at least partially leached PCD table and a substrate to a second HPHT process effective to at least partially infiltrate the at least partially leached PCD table with a cobalt-based alloy infiltrant having a composition at or near a eutectic composition of the cobalt-based alloy infiltrant.

Abstract: A coated cutting tool having a substrate and a surface coating, wherein the coating includes a Ti(C,N) layer of at least one columnar fine-grained MTCVD Ti(C,N) layer with an average grain width of 0.05-0.2 ?m and an atomic ratio of carbon to the sum of carbon and nitrogen (C/(C+N)) contained in the MTCVD Ti(C,N) layer is in average 0.50-0.65.

Abstract: Embodiments of the present disclosure relate to advanced polishing pads with tunable chemical, material and structural properties, and new methods of manufacturing the same. According to one or more embodiments of the disclosure, it has been discovered that a polishing pad with improved properties may be produced by an additive manufacturing process, such as a three-dimensional (3D) printing process. Embodiments of the present disclosure thus may provide an advanced polishing pad that has discrete features and geometries, formed from at least two different materials that include functional polymers, functional oligomers, reactive diluents, and curing agents. For example, the advanced polishing pad may be formed from a plurality of polymeric layers, by the automated sequential deposition of at least one resin precursor composition followed by at least one curing step, wherein each layer may represent at least one polymer composition, and/or regions of different compositions.

Abstract: An objective of the invention is to provide a work apparatus in which the maximum value of the force acting on a work object is unchanged even when the size of the object varies, the work apparatus not exerting force in excess of a prescribed value. The work apparatus is provided with a first member (1) and a second member (2), at least one of which is moveable, and is additionally provided with a work part (3) operated by movement of the first member (1) or the second member (2). Either the first member (1) or the second member (2) is furnished with a mobilization part (4) and a mobilized contact part (5), while the other is furnished with a contact receiving part (6).

Abstract: A clamp apparatus including two pairs of first and second clamp arms, which are supported rotatably with respect to a body and are disposed mutually in parallel. First and second cam members including respective cam surfaces are provided on ends of the first and second clamp arms. The first cam members are pressed by rollers upon lowering of a block body under a driving action of a first cylinder that makes up a drive unit. The first clamp arms are rotated to assume a clamped state. The second cam members are pressed by rollers upon lowering of a block body under a driving action of a second cylinder of the drive unit, whereby the second clamp arms are rotated to assume a clamped state.

Abstract: A spring component for a ratcheting mechanism, such as a ratchet wrench. The spring component is shaped to be retained in a recess without any special machining. For example, the spring component can be retained at three abutment points. A leaf of the spring component can abut a pawl, and a base portion opposite the leaf can abut the drive gear. Support arms can abut the sidewall of the recess to retain the spring component within the recess without the need for special machining or tooling.

Abstract: A tool suspension device includes a suspension member, a first and a second receiving members. The suspension member is protrudedly formed with a first and a second pivot structures at two ends. The suspension member has a suspension portion for suspension. The first and the second receiving members are pivotably connected with the first and the second pivot structures respectively. Thus, the first receiving member and the second receiving member are able to be piled together for storing. Also, the first and the second receiving members are able to pivot to be unfolded for available of tools for a user.

Abstract: The double bit in accordance with the present invention comprises a left axial extremity, an elongated barrel or axial center section and a right axial extremity. Each axial extremity is dimensioned and configured for engaging and associated chuck whereby a user can quickly switch tools by reversing the end of the double bit that engages the associated chuck. For example the double bit may have first and second sockets at the ends thereof that are different sizes.

Abstract: A tool for archery broadheads or other fasteners is provided including an engagement end having an aperture, socket or drive feature to accommodate the broadhead or engage a fastener. The tool is constructed at least partially from an elastomeric material. Upon application of a moment to the tool by a user, part of the tool deforms or twists so that indicia elements move relative to one another and output torque or moment information to a user based on the spatial orientation of the indicia elements relative to one another.

Abstract: An oil filter wrench. The oil filter wrench includes a housing and an engagement lever. The head portion of the engagement lever has an aperture sized to receive an oil filter therethrough and may have protrusions adapted to engage the oil filter. The engagement lever is rotatable around the center of the aperture and in relation to the housing such that the handle portion of the engagement lever is movable from a first position distal to the handle of the housing to a second position proximate to the housing. The handles of the engagement lever and the housing may be gripped by one hand, allowing for ease of operation of the oil filter wrench.

Abstract: A pressing tool for producing a non-detachable pipe connection, including holding means for holding the periphery of at least one first tubular or sleeve-shaped connection element and including sliding means for peripherally holding and axially displacing at least one second tubular or sleeve-shaped connection element. The sliding means is movable along a first axial operating direction towards the holding means to press two interengaging tubular or sleeve-shaped connection elements. The pressing tool easily allows pipe connections to be produced in a more flexible and efficient way in that the sliding means are movable towards the holding means along a second axial operating direction opposite the first axial operating direction to press two interengaging tubular or sleeve-shaped connection elements.

Abstract: A gasket retaining apparatus and a method which uses the apparatus to install a gasket between a pair of flanges. The retaining apparatus includes a gasket holding element which is temporarily secured between the flanges while joining the flanges together. A gasket groove is formed in the forward edge of the gasket holding element and one or more bolting slots extend into the body of the holding element from the forward edge. The gasket holding element preferably also includes a pair of retention holes so that a pair of releasable locking pins can be inserted through a pair of the bolt holes of one of the flanges and into the retention holes to temporarily secure the gasket holding element during the installation process.

Abstract: The invention relates to a driving tool for driving fastening means, in particular nails or staples, into a workpiece, a trigger lever, which can be actuated manually, and a workpiece contact element, which can be actuated by placing the driving tool onto the workpiece, being provided, the driving tool being able to operate in a single shot mode, in which each individual sequence of an actuation of the workpiece contact element with subsequent actuation of the trigger lever triggers a driving-in cycle, the driving tool being able to operate in a bump firing mode, in which, with the trigger lever continuously actuated, each individual actuation of the workpiece contact element triggers a driving-in cycle, a resetting assembly being provided, by means of which the driving tool can be reset from the bump firing mode into the single shot mode in an automatic, time-controlled resetting operation.

Abstract: A breaking apparatus (1) with a housing (3), striker pin (4), moveable mass (2) and shock absorber. The striker pin (4) has a driven end and an impact end and a longitudinal axis extending between the two ends. The striker pin (4) is locatable in the housing (3) such that the impact end protrudes from the housing (3). The moveable mass (2) impacts on the driven end of the striker pin (4) and the shock-absorber is coupled to the striker pin (4) by a retainer (8) interposed between a first (7b) and second (7a) shock-absorbing assemblies located internally within the housing (3) along, or parallel to, the striker pin longitudinal axis. The first shock-absorbing assembly (7b) is positioned between the retainer (4) and movable mass (2) and is formed from a plurality of un-bonded layers including at least two elastic layers (12) interleaved by an inelastic layer (13).

Abstract: A self-adjusting hand-held ergonomic holder for jackhammer for manual use by an operator in chipping a hardened ground surface along a continuously variable chipping strike angle. The holder includes a rigid main frame with an upper load bearing handle and a cradle receiving a pneumatically powered hammer with a reciprocatable elongated pneumatically controlled bit operatively mounted to one end thereof. A coil spring assembly associated with the cradle dampens vibrations generated by the jackhammer.

Abstract: A landscape lighting pocket tool having a set of foldable retractable tool bits for working on an article to enable on the go and on the spot adjusting or repairing an article or a system as well as one or more tool bits that may an angle adjustable level for determining a level condition of an article, a drywall saw blade that allows the handle of the foldable pocket tool to be used as a handle of the drywall saw blade and a set of bevel cutting edges in the jaws of the foldable pocket tool to allow a person to both cut and strip insulation from a variety of different wire sizes wire without damaging the wire.

Abstract: A power tool includes a motor, a driving mechanism, a body housing, a handle, and a rear position defining member. The driving mechanism is driven by the motor and configured to drive a tool bit in a longitudinal direction. The body housing houses the motor and the driving mechanism. The handle is connected to the body housing so as to be allowed to move with respect to the body housing between a front position and a rear position in the longitudinal direction, while being biased by a biasing member in the longitudinal direction. The handle includes a handle base and a handle cover. The rear position defining member extends from the body housing to a position between the handle base and the handle cover in the longitudinal direction and is configured to define a rear position of the handle.