Abstract: An object is to provide a suction method and a suction device which depressurize the pressure of the surface of a target installed in an open system to a critical pressure or less and which thereby can suck it and a laser processing device and a laser processing method using these. In a state where a predetermined operating distance is apart from a target installed in an open system and a suction port, the pressure of an inside of a pressure reduction chamber communicating with the suction port is set equal to or less than a critical pressure at which the speed of a gas sucked from the suction port is brought into a critical state; the jet speed of the gas in a jetting port from which the gas is jetted toward the target is set more than a Mach number of 0.

Abstract: A method for welding a ball onto a first component includes the following steps: providing a first component; creating a physical mark in or on the first component; positioning the ball in the place where the physical mark has been created; and welding the ball in a non-contacting manner to the first component using a laser welding device that is positioned at a distance from the first component and the ball.

Abstract: A three-dimensional deposition device and a three-dimensional deposition method used to highly accurately manufacture a three-dimensional object are provided. A three-dimensional deposition device for forming a three-dimensional shape by depositing a formed layer on a base unit includes: a powder supply unit which supplies a powder material; a light irradiation unit which irradiates the powder material with a light beam so that at least a part of the powder material irradiated with the light beam is sintered or melted and solidified to form the formed layer; a heating unit which selectively heats an area having passed through a position irradiated with the light beam in the base unit or the formed layer or an area not having passed through the position irradiated with the light beam; and a control device which controls operations of the powder supply unit, the light irradiation unit, and the heating unit.

Abstract: A method for controlling a metalworking operation. The method includes measuring a force feedback from a wire being fed from a feeder, the wire contacting a workpiece, determining a change in the force of the force feedback, and adjusting either a heating of the wire or a feed rate of the wire based at least in part on the change in the force of the force feedback. Also disclosed are apparatus for effecting the foregoing.

Abstract: A system and method of cooling and purging a laser processing system comprising at least one galvo system for directing at least one laser beam to a work piece and a protection window mounting plate comprising at least one protection window secured in a corresponding cavity of the mounting plate where the plate is configured with at least one air flow passageway in the mounting plate for each protection window such that an airflow used to cool each galvo systems is directed through the mounting plate vis the passageway and further directed past the window cavity to purge the cavity, where the purging air flow is then vented or exhausted from the laser system.

Abstract: A laser processing head able to prevent leakage of a coolant out of a flow path or a coolant supply pipe. The laser processing head includes a closed-circulation path that circulates the coolant for removing the heat generated in the laser processing head due to a laser beam propagating in the laser processing head, and a coolant circulation device that allows the coolant to flow in the circulation path and circulates the coolant in the circulation path.

Abstract: A semiconductor package includes a first substrate, a second substrate, a composite solder ball and a first semiconductor component. The composite solder ball includes a core, an encapsulating layer and a barrier layer. The composite solder ball is disposed between the first substrate and the second substrate for electrically connecting the first substrate and the second substrate. The barrier layer is disposed between the core and the encapsulating layer. Wherein a melting point of the barrier layer is higher than a melting point of the core, the melting point of the core is higher than a melting point of the encapsulating layer. The first semiconductor component is disposed between the first substrate and the second substrate.

Abstract: A lead-free solder alloy comprising 35-59 wt % Bi, Mn in a concentration up to 1.0 wt %, Cu in a concentration of up to 1 wt %, and balance Sn, together with any unavoidable impurities. Some embodiments also contain up to about 1 wt % Ag.

Abstract: A 5xxx or 6xxx series aluminum welding filler metal alloy for welding 3xxx, 5xxx, 6xxx, and 7xxx series alloys. This alloy is designed to use the high solidification rate from liquid to solid metal that is present in the welding process to achieve its superior mechanical properties. The alloy uses dispersion strengthening with Mg2Si dispersoids and precipitation strengthening with Mg2Si precipitates as well as solid-solution strengthening using free magnesium and manganese. The alloy has high as-welded mechanical properties and excellent corrosion resistance. The alloy is positively affected by post-weld thermal treatments and whether used as welded or post-weld thermally treated, provides mechanical properties in excess of the base metals being joined. Alloy compositions are available for use at elevated temperature service up to 250 degrees F.

Abstract: A nickel particle composition is shown, including: A) a nickel particle having an average particle size in the range of 0.5 ?m to 20 ?m obtained via a laser diffraction/scattering method and containing 50 wt % or more of a nickel element; B) a nickel fine particle having an average primary particle size in the range of 30 nm to 200 nm observed via a scanning electron microscope and containing 50 wt % or more of a nickel element; and C) an organic binder in the range of 0.1 wt % to 2.5 wt % relative to the total metal content; and the weight ratio of a component A to a component B (component A:component B) is in the range of 30:70 to 70:30.

Abstract: A method of making a weld filler metal for a superalloy for welding is disclosed. The method includes enclosing a welding rod in a first foil layer and sintering the welding rod and the first foil layer. Related processes and articles are also disclosed.

Abstract: A method for controlling a start of a metalworking operation. The method includes detecting an initial contact between a wire being fed from a welding apparatus and a workpiece and, in response to the detection, halting feeding of the wire from the welding apparatus. The method further includes activating a high energy heat source configured to heat a tip of the wire and resuming the feeding of the wire from the welding apparatus when the tip of the wire is heated by the high energy heat source to a plastic state. The feeding of the wire is resumed by measuring a force feedback from the wire contacting the workpiece. An apparatus for implementing the method is also disclosed.

Abstract: A welding spatter protection screen formed primarily of magnetic sheeting or being a magnet is provided to further safety by halting or restricting the motion of magnetic and paramagnetic by-products, thereby preventing flame, light, magnetic material, sparks and dust from being scattered during welding or post-weld grinding. This improvement can be applied to various type of welding screens (welding curtain, welding windshield), by using a flexible magnetic sheet material as the primary barrier material.

Abstract: Techniques for repairing a shell and tube heat exchange device including a housing having at least a first member and a second member disposed along a longitudinal side thereof are provided. A partial pipe is provided having a first end, a second end, and a continuous interior surface. The partial pipe is coupled to the housing transverse to the longitudinal direction. The first end of the partial pipe is coupled to the first member and the second end of the partial pipe is coupled to the second member to define a cavity between the continuous interior surface of the partial pipe and the longitudinal side of the exchange device and to prevent leakage of the exchange device.

Abstract: A positive feed tool may include a motor, a power supply operably coupled to the motor to power the motor, a gear head and a spindle. The gear head may be operably coupled to the motor to be operated responsive to powering of the motor. The gear head may include a drive assembly and a feed assembly. The spindle may be operably coupled to the gear head to enable the spindle to be selectively driven rotationally and fed axially based on operation of the drive assembly and the feed assembly, respectively. The feed assembly may include a feed rate oscillator having a spindle feed gear operably coupled to a differential feed gear. The spindle feed gear is operably coupled to rotate the spindle to selectively axially feed the spindle. The differential feed gear is selectively operably coupled to an input shaft turned by the motor. At least one of the spindle feed gear or the differential feed gear has a variable pitch diameter.

Abstract: A positive feed tool may include a motor, a power supply operably coupled to the motor to power the motor, a gear head and a spindle. The gear head may be operably coupled to the motor to be operated responsive to powering of the motor. The gear head may include a drive assembly and a feed assembly. The spindle may be operably coupled to the gear head to enable the spindle to be selectively driven rotationally and fed axially based on operation of the drive assembly and the feed assembly, respectively. The feed assembly may include a feed rate oscillator having a fixed cam and a movable cam operably coupled to each other via a plurality of rolling elements to oscillate between a maximum width and a minimum width of the feed rate oscillator based on a position of the movable cam. The rolling elements alternate between a first state in which at least some of the rolling elements are unloaded and a second state in which all of the rolling elements are loaded.

Abstract: A chip suction cover is used for a machine tool including: a spindle configured to rotate a tool; and a suction mechanism unit configured to suck chips of a workpiece that are produced in accordance with rotation of the tool. The chip suction cover includes: a hollow body that is provided with an opening through which a rotation central axis of the spindle extends and that is arranged so as to surround the tool; and a cover body that is provided in the hollow body so as to partially close the opening and that is configured to cover a part of a tip end portion of the tool while exposing a remaining part of the tip end portion of the tool. A chip suction cover having such a configuration that improves the efficiency of sucking chips produced due to workpiece machining is provided.

Abstract: A clamping mechanism of rotation table device includes a shaft fixing a workpiece to an end portion thereof, a brake disk fixed to the shaft, and a clamping mechanism clamping or unclamping the brake disk by driving a piston. The clamping mechanism includes a plate spring fixed to a rear plate fixed to a casing and a piston and urging the piston in a clamping direction at all times by an elastic deformation restoring force and the plate spring is fixed to the rear plate or the piston through an annular plate.

Abstract: A circular cutting blade includes a circumferential cutting edge defined by a diameter and a vertically-oriented planar surface that includes indicia thereon. The indicia are a plurality of values corresponding to measured diameters of the blade after the blade is re-sharpened.

Abstract: A lathe or other rotating machine includes a tool rest on a carriage that is movable along the work piece. The carriage includes a post that is movable with the tool rest. The post supports a guard that is disposed between the user and the work piece. The guard may include a frame surrounding a transparent portion. The frame may support a plurality of light emitting elements directed onto the work piece. An extendable/retractable transparent portion may be extended from the guard between the user and the work piece. The extendable/retractable portion and/or the transparent portion may be a magnifier.

Abstract: The present invention is a workpiece double-disc grinding method including supporting a sheet workpiece along a circumferential direction from an outer circumference side of the workpiece by a ring holder, and simultaneously grinding both surfaces of the workpiece supported by the ring holder with a pair of grinding wheels while rotating the ring holder, wherein the surfaces of the workpiece are simultaneously ground such that a wear amount of the grinding wheels per 1 ?m of a grinding stock removal of the workpiece ranges from 0.10 ?m to 0.33 ?m. This workpiece double-disc grinding method can reduce nanotopography formed in previous steps such as a slicing step without degrading the flatness in the double-disc grinding step.

Abstract: A method for producing an instruction for bevelling an ophthalmic lens, with a view to mounting same in a framework of a spectacle frame into which a bevelled display lens is initially fitted. The method includes the steps of: a) acquiring a correction parameter relative to the play between the framework and the display lens; b) capturing a surface image of the display lens previously removed from the framework; c) determining, on the surface image, an initial contour (C0) of the display lens; d) calculating a corrected contour (C1), by correcting the initial contour according to the correction parameter; and e) deriving the bevelling instruction according to the corrected contour.

Abstract: The water jet reaming tool can avoid the need to replace a toilet (17). The curved handle (19) allows the user to stay at arm's length away from the difficult removal of mineral deposits (13) which prevent sufficient clean water (14) to flush the toilet. A reamer element (12) stands ready at the other end of the handle (19) to enter a clean water jet (15) under the toilet inner rim (16). The user views (11) the water jet (15) and the point 26 via lines of sight (18) from the reflection in the metal mirror (30) attached to the reamer element (12). The user's wrist motions cause the handle (19) to rotate the reamer element (12) and grind the mineral deposits (13) to dust.

Abstract: An electric oscillating tool has an electric motor having an output shaft, an eccentric shaft that is connected to one end region of the output shaft, and a weight that is connected to the other end region of the output shaft. A blade as a tool accessory is driven to reciprocally rotate around a spindle by reciprocating motion of the eccentric shaft in a transverse direction of the electric oscillating tool. The weight is driven to cancel out the inertial force of the eccentric shaft, so that the output shaft is stably rotated.

Abstract: The present invention provides a polishing composition with which differences in height of a SiN film can be sufficiently removed. The present invention is a polishing composition for use in polishing a polishing object having a surface which is positively charged at a pH of less than 6, containing water, abrasive grains, and an anionic copolymer having a specific unit structure, and having a pH of less than 6, wherein the anionic copolymer has at least two acidic groups having different acidities.

Abstract: A chemical mechanical polishing (CMP) apparatus includes a processing chamber, a platen, a wafer heater and a carrier head. The platen is disposed in the processing chamber and is configured to allow a polishing pad to be disposed thereon. The wafer heater is disposed in the processing chamber and is configured to heat a wafer. The carrier head is disposed in the processing chamber and is configured to hold the heated wafer against the polishing pad.

Abstract: An apparatus for performing chemical mechanical polish on a wafer includes a polishing head that includes a retaining ring. The polishing head is configured to hold the wafer in the retaining ring. The retaining ring includes a first ring having a first hardness, and a second ring encircled by the first ring, wherein the second ring has a second hardness smaller than the first hardness.

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, addition polymer precursor compounds, catalysts, and curing agents.

Abstract: A superfine abrasive biomacromolecule flexible polishing film and a preparation method therefor, include a substrate of the polishing film made of a degradable biomacromolecule material, the mechanical performance of the polishing film is enhanced by means of selected filling agents, water carrying agents, pore forming agents and other drying control chemical additives, and superfine abrasives can be evenly dispersed and effectively held in the polishing film by using a coupling agent surface chemical modification method.

Abstract: A superabrasive compact and a method of making the superabrasive compact are disclosed. A method of making a superabrasive compact includes the steps of providing a plurality of superabrasive particles; subjecting the plurality of superabrasive particles to conditions of a first elevated temperature and pressure; and crushing the plurality of superabrasive particles into a pill under the first elevated high pressure and high temperature.

Abstract: The present invention provides a clamp, comprising a first clamp body, a second clamp body and a shank. The shank is configured to be passed through the first clamp body and the second clamp body. The clamp further comprises a stepping mechanism and a locking/unlocking mechanism. The stepping mechanism is comprised of a first handle, a second handle, driving sheets and a first elastic member. The first handle is pivotably mounted to the second clamp body by a pivot located on the first handle, and is configured to cooperate with the second handle. Driving sheets are mounted to the shank and contact a contact portion arranged on the first handle. A first elastic member is arranged to provide a pre-tightening force to the driving sheets to enable the driving sheets to be kept in constant contact with the contact portion, in which the pivot and the contact portion are located on the upper side of the shank. Raising the position of the pivot is beneficial to generate a larger clamping force.

Abstract: A cylinder head pallet includes: a base plate; a subplate disposed upwardly of the base plate, spaced apart from the base plate, and having a first surface and a second surface that oppose each other; and a plurality of posts installed on the first surface and the second surface of the subplate to support a cylinder head.

Abstract: A ratchet wrench includes an annular head, a driving unit, a control unit, a rotary member, a second body, a bead and an end piece. The annular head receives the driving unit therein and a shaft extends from the annular head. The driving unit has a top part and a bottom part, between which a first toothed ring, a first pawl, two second pawls, a third pawl and a second toothed ring are pivotably located. The rotary member is rotatably inserted into an axial hole of the shaft and has third teeth, a recess and an engaging groove. The third teeth are engaged with the first and second toothed rings. A bead biased by a spring located in the shaft and is engaged with the engaging groove. The recess of the rotary member is connected with the second body.

Abstract: An alignment tool for manually rotating a power take-off driveline shaft having a plurality of splines separated by a plurality of grooves, the tool includes a semi-circular work head having first and second ends, wherein the first end includes a tip portion pointing inwardly toward a center of the semi-circular work head, and a handle having a first end attached to the second end of the semi-circular work head, wherein a longitudinal axis of the handle is disposed at an acute angle from the semi-circular work head. The semi-circular work head is configured to fit around the power take-off driveline shaft with the tip portion engaging one of the plurality of grooves, and a force may be applied to the handle to manually rotate the power take-off driveline shaft.

Abstract: A novel pin spanner wrench with gripping teeth. A user may utilize embodiments of the present disclosure to remove the end seals on steering cylinders and trim and tilt cylinders of certain makes and models of boat engines. Gripping teeth included in embodiments of the present disclosure enable improved grip between the pin spanner wrench and the end seals on steering cylinders and trim and tilt cylinders.

Abstract: A system configured to couple a hydraulic hammer and tool is disclosed. In one aspect, a tool may be configured to couple with a hydraulic hammer. The tool may include an upper portion comprising a shaft having a plurality of upper grooves, a plurality of lower grooves, and a circumferential indentation disposed between the plurality of upper grooves and the plurality of lower grooves. The plurality of upper grooves and the plurality of lower grooves may be longitudinally oriented parallel to an axis of elongation of the shaft and be aligned to one another. The indentation may be configured to accommodate a rotational movement of a locking ring that is configured to couple the tool with the hydraulic hammer. The tool may further include a lower portion connected to the upper portion and comprising a tool tip.

Abstract: A system configured to couple a hydraulic hammer and tool is disclosed. A hydraulic hammer may include a housing defining a chamber, elongate along a longitudinal axis, configured to receive a tool. The chamber may comprise an opening through which the tool may be inserted. A plurality of upper splines and a plurality of lower splines may be disposed, parallel to the longitudinal axis, on an inner surface of the chamber. A locking mechanism, comprising a rotatable locking ring, may be disposed within the chamber between the plurality of upper splines and the plurality of lower splines. The locking ring may comprise a plurality of locking ring splines disposed on an inner surface of the locking ring, wherein the plurality of locking ring splines are configured to align with the plurality of upper splines and the plurality of lower splines when the locking ring is rotated to an unlocked state.

Abstract: An air supply structure of a pneumatic tool includes a housing and a ventilation module. The housing includes an operating portion including an air chamber, a connecting portion including an accommodating space, and a holding portion including an air entering channel and an air exiting channel. The accommodating space is in communication with the air chamber, the air entering channel and the air exiting channel. The ventilation module, disposed in the connecting portion, includes an air inlet in communication with the air entering channel, an air outlet in communication with the air exiting channel, a first air opening in communication with the air chamber, a second air opening in communication with the air chamber, and a ventilation space. Thus, the size of the ventilation space of the ventilation module of individual pneumatic tools is ensured to be uniform to increase the manufacturing yield rate.

Abstract: An electric tool is provided. The electric tool prevents anomalies in motor rotation due to dust and moisture sucked in together with a cooling wind, and is configured such that rotational position detection operations and switch operations are not affected. In the electric tool which drives a brushless DC motor using a controller, a magnetic body for rotational position detection is provided on a rotation shaft which can rotate integrally with a rotor, Hall ICs are provided to detect the rotational position of the magnetic body and output a position signal to the controller, and the magnetic body and the Hall ICs mounted on a substrate are arranged in a region isolated from the wind path of the cooling wind generated by rotation of a cooling fan. The Hall ICs are accommodated in a housing filled with resin.

Abstract: A wrench system includes a socket wrench that has a head and a handle. The head may have a socket removably coupled thereto thereby facilitating the socket wrench to manipulate a fastener. The handle may be gripped thereby facilitating the fastener to be selectively tightened or loosened. An extension is removably coupled to the head such that the extension may be gripped. Thus, an increased rotational torque may be applied to the socket wrench compared to gripping only the handle.

Abstract: A vent manipulation system includes a building that has a ceiling and a floor. The ceiling is spaced from the floor and the ceiling is inaccessible without a ladder. A vent is coupled to the ceiling and the vent may pass air through the ceiling. A tool is provided and the tool may be manipulated. The tool engages the vent such that the tool adjusts the vent between an open position and a closed position. Thus, the tool adjusts the vent without the ladder.

Abstract: An adjustable handle of a knife or other implement is provided. The adjustable handle allows a user or multiple users to adjust the shape of the handle to more closely match the shape of their hand while gripping the handle, to shape the handle to reduce strain on their hand, or to otherwise change the shape of the handle for other purposes. The adjustable handle includes a first end and a second end opposite the first end, and an outer gripping surface between the first end and the second end. The handle also includes a plurality of handle members positioned between the first end and the second end which are selectably moveable with respect to each other to adjust a shape of the outer gripping surface.

Abstract: A handle of a hand tool includes a body made of a first material and a bit is connected to the bottom of the body. A buffering portion made of a second material integrally formed to the outside of the body. The second material has a proper elasticity and is less hard than the first material. A grasp portion made of a third material integrally formed with the buffering portion. The second material is less hard than the third material. The grasp portion has multiple recess for easily grasp by the user. The buffering portion buffers or absorbs the shifting of the grasp portion to maintain the bit to be perpendicular to the top face of the bolt head so as to effectively drive the bolt.

Abstract: A reacher assembly (20) combines a single shaft (22) presenting a guideway (30) and supporting a handle (40). A trigger (44) is spaced from the handle (40) and is connected to a closeable jaw (50) by a cable (56) disposed in the guideway (30). A snare (66) presents a loop controlled by a slide (72) slidably supported in a slot (74) in the shaft (22) with the snare (66) and the cable (56) extending in parallel and side by side relationship with one another in the guideway (30) of the shaft (22) for movement relative to each other. A shoehorn (60) is slideably supported by a track (58) on the shaft (22). An incapacitated person may carry only one assembly (20) to perform multiple tasks.

Abstract: In an aspect, a robotic system is provided and includes at least two digital servo modules, each of which includes a position-controlled motor and a position sensor for sensing a servo position, a plurality of building block elements that are connectable with the digital servo modules to create position-controlled joints of a robotic figure, at least two wheel modules enabling wheeled movement of the robotic figure and a central controller communicating with and controlling the digital servo modules and the wheel modules. The central controller operatively places a selected group of digital servo modules in a learned motion mode, wherein a corresponding group of position-controlled joints is enabled to be manually manipulated, and wherein each of the selected digital servo module periodically transmits servomotor position to the central controller. The central controller can steer the robotic figure wheel modules based on servo positions of the selected digital servo modules.

Abstract: An adaptive learning interface system for end-users for controlling one or more machines or robots to perform a given task, combining identification of gaze patterns, EEG channel's signal patterns, voice commands and/or touch commands. The output streams of these sensors are analysed by the processing unit in order to detect one or more patterns that are translated into one or more commands to the robot, to the processing unit or to other devices. A pattern learning mechanism is implemented by keeping immediate history of outputs collected from those sensors, analysing their individual behaviour and analysing time correlation between patterns recognized from each of the sensors. Prediction of patterns or combination of patterns is enabled by analysing partial history of sensors' outputs.

Abstract: A unified collaboration environment is formed by establishing a local workspace positional frame of reference using a plurality of UWB transceivers. With a frame of reference established a communication link is established between each of the workspaces, and a collaboration module to establish a peer-to-peer network. Data is received from each of the workspaces including the local workspace frame of reference, the set of available assets and workspace behavior (tasks). The collaboration module crafts a unified collaboration environment by transforming the local workspace into a collaborative positional frame of reference. A user, through a user interface, can offer real-time input to a virtualized version of the workspace to augment actions within the workspace environment.

Abstract: An evaluation value Ek on a trajectory error ek between an actual trajectory yk and a target trajectory x is calculated. In a case where the calculated evaluation value Ek is better than a best evaluation value Ebest, the best evaluation value Ebest is updated by the evaluation value Ek and is stored. A commanded trajectory uk in this situation is employed as a best commanded trajectory ubest and stored. In a case where the calculated evaluation value Ek is worse than the best evaluation value Ebest, a compensator that calculates a correction of the trajectory ?uk+1 is changed to another compensator and the correction of the trajectory ?uk+1 is calculated. A commanded trajectory in the next-time operation uk+1 is calculated from the correction of the trajectory ?uk+1 and the best commanded trajectory ubest.

Abstract: Devices, systems, and methods for providing commanded movement of an end effector of a manipulator concurrent with a desired movement of one or more joints of the manipulator according to one or more consolidated null-space objectives. The null-space objectives may include a joint state combination, relative joint states, range of joint states, joint state profile, kinetic energy, clutching movements, collision avoidance movements, singularity avoidance movements, pose or pitch preference, desired manipulator configurations, commanded reconfiguration of the manipulator, and anisotropic emphasis of the joints. Methods include calculating multiple null-space movements according to different null-space objectives, determining an attribute for each and consolidating the null-space movements with a null-space manager using various approaches. The approaches may include applying weighting, scaling, saturation levels, priority, master velocity limiting, saturated limited integration and various combinations thereof.

Abstract: A device for supporting a luggage item including a vertical base member, an arm, and carrying-element having a support surface. A guide guides vertical movement of the arm along a length of the base member, a driver drives vertical arm movement, a sensor determines force acting on the carrying element, a position sensor determines a vertical position and speed of the arm, and a controller controls the driver and sets a support force based on the determined vertical speed position of the arm.