Abstract: An object of the present invention to provide a gas supply device, a gas supply device having a mixing function, a welding device, and a gas supply method, which can prevent rush flow of gas from the gas supply source in the initial stage of gas lead-out from a gas supply source, reduce the cost, and improve the maintenance; and the present invention provides a gas supply device including a gas supply source into which a gas is filled at a high pressure, a single-stage decompressor which is provided at a gas outlet of the gas supply source and which is configured to reduce pressure of a gas led out from the gas supply source to a predetermined pressure, a gas supply line having one end connected to the single-stage decompressor and the other end connected to a use destination of the gas, a solenoid valve provided in the gas supply line, and a flow regulating valve provided in the gas supply line located between the solenoid valve and the use destination.

Abstract: In the ultrasonic welding method, ultrasonic vibration is imparted to a first resin member via a horn while applying a pressing force to the first resin member and a second resin member in which weld portions and come into contact with each other by using a jig for supporting the second resin member and the horn that is disposed to face the jig and in contact with the first resin member so as to weld the first resin member and the second resin member, in which a jig of which a support surface for supporting the second resin member is formed of an elastomer is used as the jig.

Abstract: A pressure welding device (1) includes a plastification device (7), an upsetting device (8) and a mounting (11) for the components (2,3) to be welded together and a machine frame (12). The pressure welding device further includes a machine head (13) and an upsetting head (27) which can be moved relative one another along a machine axis (6). The mounting (11) includes a component seat (36), which is mounted on the machine frame (12) so as to be able to float between the machine head (13) and the upsetting head (27), and a preferably automatic adjusting device (17) for adaptation to different component dimensions, in particular component lengths.

Abstract: The invention relates to a method for creating a detachment zone in a solid in order to detach a solid portion, especially a solid layer, from the solid, said solid portion that is to be detached being thinner than the solid from which the solid portion has been removed.

Abstract: An apparatus for trimming a sheet metal workpiece includes a base to support the sheet metal workpiece at a working position on the base. A shearing tool is connected to the base to trim the sheet metal workpiece by mechanically inducing a shearing stress on the sheet metal workpiece to form an edge at an edge location on the sheet metal workpiece. A heater is connected to the base to define a heated region on the sheet metal workpiece by heating at least the edge location on the sheet metal workpiece after the sheet metal workpiece is in the working position. The apparatus includes a temperature sensor to detect a surface temperature of the heated region.

Abstract: A composite printing device featuring multi-spindle high-energy-particle-beam deposition welding and milling, comprising a machine base, a workbench, a multi-spindle milling device, the multi-spindle milling device including a milling base and a tool base; the workbench including an ejector base, the ejector base fitted with a welding gun. Through the guide of the first rail and second rail, the horizontal distance between the milling base and the workbench or the ejector base can be adjusted, so that the milling base can move to the upper side of the workbench or ejector base; and the milling clamp can hold the tool or welding gun to form a one-layer or multi-layer approximate shape on the workbench and to conduct profile milling, so as to obtain the right size and surface accuracy required for the mechanical part, removing the need for further processing.

Abstract: Methods and systems are provided for using optical interferometry in the context of material modification processes such as surgical laser or welding applications. An imaging optical source that produces imaging light. A feedback controller controls at least one processing parameter of the material modification process based on an interferometry output generated using the imaging light. A method of processing interferograms is provided based on homodyne filtering. A method of generating a record of a material modification process using an interferometry output is provided.

Abstract: Plastic parts are welded in a laser welding system. An infrared laser source in a laser chamber is controlled by a controller using closed-loop feedback control with a corrected feedback signal that is compensated for background infrared radiation in the laser chamber. Prior to the infrared laser source being turned on, the controller senses with the optical sensor an intensity of background infrared radiation in the laser chamber. Once the laser is on, the controller senses with the optical sensor an intensity of infrared laser radiation in the laser chamber. The controller calculates the corrected feedback signal by subtracting the intensity of the background infrared radiation sensed when the infrared laser source was off from the intensity of the infrared laser radiation sensed when the infrared laser source is on.

Abstract: A three dimensional printing system includes a powder delivery system and a controller. The powder delivery system includes a cartridge, a powder transfer assembly, a vacuum source, and source of inert gas. The cartridge includes a lower portion defining a lower cavity containing powder and an upper portion. The powder transfer assembly includes a cowling and a loader suction tube that extends through the cowling. The controller is configured to: (1) lower the cowling into sealing engagement with the upper portion of the cartridge whereby an upper cavity is defined between the cowling and the upper portion of the cartridge, (2) operate the source of inert gas to positively pressurize the upper cavity, and (3) lower the loader suction tube into the powder while operating the vacuum source to extract the powder.

Abstract: A welded assembly includes a first sheet and a second sheet. The second sheet is disposed over a portion of the first sheet and defines an overlap portion between the first and second sheets. A weld fastening the second sheet to the first sheet in the overlap area connects the second sheet to the first sheet for distributing stress uniformly across a welded portion of the overlap area.

Abstract: Various embodiments include approaches for controlling an additive manufacturing (AM) process. In some cases, an AM system includes: a process chamber for additively manufacturing a component, the process chamber at least partially housing a plurality of distinct melting beam scanners, each of the distinct melting beam scanners configured to emit a melting beam, wherein each of the distinct melting beam scanners is independently physically movable within a corresponding region of the process chamber; and a control system coupled with the plurality of distinct melting beam scanners, the control system configured to control movement of at least one of the plurality of distinct melting beam scanners within the corresponding region based upon a geometry of the component.

Abstract: A wire based additive manufacturing system includes a base movable in a feed direction. Multiple welding lasers are each spatially fixed as the base moves in the feed direction. Multiple cutting lasers are each spatially fixed as the base moves in the feed direction. Multiple wire feed members each feed an individual wire of a plurality of wires onto the base as the base moves in the feed direction. Each one the multiple welding lasers is energized to fuse parallel adjoining ones of the plurality of wires, and each one of the cutting lasers is energized to cut one of the fused wires to complete one of a plurality of wire layers.

Abstract: An additive manufacturing apparatus including a build chamber, build platform lowerable in the chamber so layers of flowable material can successively form across the platform, laser for generating a laser beam, scanning unit for directing the laser beam onto each layer to selectively solidify the material and a processor for controlling the scanning unit. The processor controls the scanning unit directs the laser beam to solidify a selected area of material by advancing the laser beam many times along a scan path. On each pass, the laser beam solidifies spaced apart sections of the scan path, each subsequent pass solidifying sections that are located between sections solidified on a previous pass. The processor controls the scanning unit to direct the laser beam to solidify selected area of material by solidifying sub-millimetre sized sections of non-continuously area and in an order such that consecutively solidified sections are spaced apart.

Abstract: A method for determining a reference focal position of a laser beam for processing a plate-like member, the method comprising producing at least two incisions in the plate-like member with the laser beam set at different focal positions, irradiating the plate-like member with the laser beam, detecting edges of the incisions by measuring one or more parameters relating to the irradiation of the plate-like member, and establishing a width of the at least two incisions using the detected one or more parameters.

Abstract: A formed article includes a metal particle which has a particle size in a range from 1 ?m to 20 ?m and consists of an outer shell and a core part. The core part contains Sn or a Sn alloy. The outer shell contains an intermetallic compound of Sn and Cu and covers 50% or more of a total surface area of the core part.

Abstract: A lead-free solder alloy, comprising from 35 to 59% wt Bi; Cu in a concentration up to 1.0 wt %; from 0.01 to 0.5 wt % Ni; and the balance Sn, together with any unavoidable impurities, with certain embodiments further comprising Ag, such as up to 1 wt % Ag.

Abstract: An aluminum alloy clad material includes a core material that is made of an aluminum alloy containing Mg at a concentration of 0.2 to 2.0% (mass %; the same applies below), with the balance being Al and unavoidable impurities, and has one side or two sides cladded with a surface-layer material made of pure aluminum containing Mg having a limited concentration of lower than 0.1%. In addition, an aluminum alloy clad material includes a core material that is made of aluminum or an aluminum alloy, and has one side or two sides cladded with a surface-layer material made of pure aluminum containing Mg having a limited concentration of lower than 0.1%, via an interlayer material made of an aluminum alloy containing Mg at a concentration of 0.3 to 2.0%, with the balance being Al and unavoidable impurities.

Abstract: A machining route display device includes a positional information acquiring section configured to acquire positional information of a drive shaft in a predefined control cycle, a laser machining head coordinate calculator configured to calculate a coordinate value of the laser machining head from the positional information of the drive shaft and machine configuration information of a laser machine, a laser output acquiring section configured to acquire a laser output value from a laser, a display format setting section configured to set a display format of the laser according to the laser output value acquired by the laser output acquiring section, and a display section configured to display a machining route based an the coordinate value of the laser machining head and the display format.

Abstract: A method for additively manufacturing an object from a metal powder is disclosed. The method includes distributing a first stratum of the metal powder in a powder-bed volume at least partially delimited by a build platform. The method further includes melting a first selected portion of the first stratum of the metal powder in a powder-bed volume by exposing the first selected portion of the first stratum of the metal powder to electromagnetic energy from an electromagnetic energy source while moving the electromagnetic energy source along a first predetermined path in a polar coordinate system to form at least a portion of a first layer of the object. The electromagnetic energy source is movable in a linear travel path along a linear rail and the linear rail is one of rotatable or revolvable in a horizontal plane about a vertical axis A.

Abstract: A molding system for assembling a part by moving a workpiece griped by a hand of a robot toward a mold of an injection molding machine, while rotating a molded article supported on the mold and the workpiece relative to each other, whereby the molded article and the workpiece are screw-engaged. The molding system includes a rotation detector for detecting a rotational amount between the molded article and the workpiece, an assembled state judging unit for judging if the assembled part is in a predetermined state, and a control unit for relatively rotating and displacing the molded article and the workpiece until the rotational amount exceeds a predetermined rotational amount and the assembled state becomes the predetermined state.

Abstract: A machine tool for machining a workpiece has a spindle arm with a spindle for receiving a tool or workpiece. The spindle arm is movably attached to a spindle arm receiving section. The spindle arm has a first spindle arm section, being a longitudinal element, having a first rotational axis with respect to the spindle arm receiving section and is hinged to the spindle arm receiving section; a second spindle arm section, rotatable about a second rotational axis with respect to and is hinged to the first. The spindle arm receiving section has a first subsection and a second subsection, arranged on the machine column at a distance from one another to receive the spindle arm. The first spindle arm section has first and second subsections, which are arranged on the spindle arm receiving section at a distance from each other to receive the second spindle arm section.

Abstract: A method for machining a workpiece includes using a multi-axis robot to lift a tool head from a magazine. The robot attaches the tool head to an end of a drill tube. The drill tube is then rotated and longitudinally translated to machine the workpiece. The tool head is withdrawn from the machined workpiece longitudinally by moving the drill tube. The robot is used to disconnect the tool head, replace the disconnected tool head into a magazine and withdraw a different tool head from the magazine for attachment to the drill tube.

Abstract: An automation system includes a fieldbus, at least two automation devices which are securely connected to the fieldbus, at least two coupling points which are configured such that automated connection and disconnection of an exchanging device to and from the fieldbus is possible, wherein exchanging devices are configured to establish a functionally safe connection with the automation devices via the fieldbus, where the functional safety thus achieved serves to avoid malfunctions as a result of errors.

Abstract: Provided is a device discharging chips, which is configured to allow smooth transfer because it is possible to absorb transformation of connecting pins due to a force generated while chain belts are operating as well as smoothly discharging a coolant and chips.

Abstract: The hand-held cutter includes: a cutting blade which is configured to rotate about a rotation shaft to cut a target; a cutter body which rotatably supports the cutting blade; a protection cover which covers a portion of the cutting blade and is rotatable about the rotation shaft; a pressing mechanism which is configured to move toward the protection cover to press a guide plate onto a support plate so as to impose and maintain restrictions on rotation of the protection cover; and a torsion coil spring exerting a biasing force to move the pressing mechanism toward the protection cover. The hand-held cutter is configured such that moving the pressing mechanism, against the biasing force of the torsion coil spring, away from the protection cover removes restrictions on the rotation of the protection cover.

Abstract: A machining process includes providing a cutting tool having a rake face and a flank face; bringing the cutting tool into contact with a metal alloy work piece to form a chip by penetrating the cutting tool into the workpiece; and introducing a nanofluid into a vicinity of the penetration to remove heat and, in some instances, customize the finished surface. The nanofluid includes a mixture of a cryo-liquid and nanoparticles having a maximum size of approximately 0.1 nanometers to approximately 100 nanometers.

Abstract: In order to monitor replacement time for a consumable part of a machine tool, the present invention defines a time period after the power of the machine tool is turned off until the next turn-on thereof as a pause time for the consumable part, and provides a notification that the replacement time for the consumable part has come when the pause time is not less than a predetermined threshold.

Abstract: A glass-plate working apparatus 1 includes a feeding section 7, a scribing and bend-breaking section 8, a grinding section 9, and a discharging section 10. The feeding section 7, the scribing and bend-breaking section 8, the grinding section 9, and the discharging section 10 are provided by being arranged from a right end R side toward a left end L side, and the scribing and bend-breaking section 8 is adapted to effect the formation of a scribe line on a glass plate 2 and the bend-breaking and separation of the glass plate 2 along the scribe line in a state in which the glass plate 2 is fixed as it is at the same position.

Abstract: A real-time calculation system capable of computing the industrial optical performance and yields of a prescription laboratory is disclosed. The system uses statistical analysis to determine the compensation factors that can be applied to given products, Semi-Finish, materials, or lens designs to increase the lab yields. Using a monitoring and configuration system, the user tracks the evolution of the laboratory's performance and identifies areas in which yields are impacted. The user defines how the calculation system will optimize the laboratory's performance, such as by defining how the compensation factors will be calculated and applied.

Abstract: There is provided a method for installing an endless abrasive belt to a belt holder unit, the method comprising: aligning a base with the belt holder unit, the base comprising a backing plate and at least one belt extraction element extending from the backing plate, wherein a cartridge having a belt pre-tightened around the cartridge is physically coupled with the base such that there is a space between the backing plate and the cartridge; arranging the cartridge to face the belt holder unit; reducing said space by pressing the cartridge against the belt holder unit that causes the at least one belt extraction element to push said belt off around the cartridge as a response to reducing the space; and causing tightening of said belt to the belt holder unit.

Abstract: An expandable handheld pneumatic belt grinder includes a body, an expansion component and an operation component. The body has a receiving space, a pneumatic motor, and a rotating wheel driven by the pneumatic motor. The expansion component has an expansion pipe and an expansion rod which are connected. The expansion rod is coupled to the receiving space. The operation component has a support rod with one end carrying a driven wheel and the other end coupled to the receiving space or expansion pipe. A grinding belt fits around the driven wheel and rotating wheel collectively. A user changes the distance between the rotating wheel and driven wheel by choosing between two options: coupling the support rod of operation component and the receiving space; and coupling the expansion rod of expansion component and the receiving space, and then coupling the support rod of operation component and the expansion pipe.

Abstract: A chemical mechanical polishing system includes a carrier head having a flexible membrane and a chamber to apply pressure to the flexible membrane, a pressure control unit, a pressure supply line connecting the pressure control unit to the chamber, and a sensor located along the pressure supply line to detect a contaminant in the pressure supply line.

Abstract: The present invention provides a method for polishing a wafer including, after unloading and before loading to hold, a next wafer to be polished: measurement to measure a depth PDt of a concave portion of a template after taking out a polished wafer; calculation to calculate a difference ?PD between the measured depth PDt of the concave portion and a depth PD0 of the concave portion of the template before being used for polishing; and adjustment to adjust polishing conditions for a next wafer to be polished in accordance with the calculated difference ?PD. Consequently, there are provided the method for polishing a wafer and a polishing apparatus which enable adjusting a fluctuation in flatness of each wafer caused due to a fluctuation in numerical value of a pocket depth of a template.

Abstract: An object of the present invention is to provide a polishing composition enabling polishing of an object to be polished at higher speed. Provided is a polishing composition used for polishing an object to be polished in which the polishing composition contains surface-modified abrasive grains, in which an ionic dispersant is directly modified on the surface of the abrasive grains, and dispersing medium, and aggregation of the abrasive grains is suppressed in the dispersing medium.

Abstract: Provided is a polishing apparatus and polishing method which can preferably adjust a temperature of a surface of a polishing pad. A polishing apparatus includes: a polishing table configured to be rotatable, and to support the polishing pad; a substrate configured to hold an object to be polished, and to press the object to be polished against the polishing pad; a polishing liquid supplying portion configured to supply a polishing liquid to a polishing surface; a polishing liquid removing portion configured to remove the polishing liquid from the polishing surface; and a temperature adjuster configured to adjust a temperature of the polishing surface. In a rotating direction of the polishing table, the polishing liquid supplying portion, a polishing region where the object to be polished is pressed against the polishing surface by the substrate, the polishing liquid removing portion, and the temperature adjuster are disposed in this order.

Abstract: A grinding wheel assembly is disclosed and includes an arbor in which a pull stud may be installed. Further, the arbor can include a head assembly that includes a mounting plate, a cover plate, and an abrasive body disposed there between. The abrasive is removably engaged with the mounting plate and the cover plate.

Abstract: A grinding wheel which includes a plurality of vitrified bonded grindstone chips arranged on an outer periphery of an annular base metal thereof, and is configured to grind a workpiece with use of the grindstone chips while rotating the annular base metal, wherein each of the vitrified bonded grindstone chips is configured in such a manner that, in a rectangular parallelepiped including a rectangular grinding surface which is placed on an opposite side of the annular base metal and grinds the workpiece and four side surfaces adjacent to grinding surface, four ridge portions each of which is provided between the side surfaces are C-chamfered, each long side of the grinding surface is arranged along the outer periphery of the annular base metal, and each of the four ridge portions is C-chamfered in a range which is ? or more of a length of each short side of the grinding surface.

Abstract: An adapter for a fixture for sharpening dental instruments has an engagement arm for connecting to the fixture and for creating a holding space for different width sharpening stones, a bearing shelf for supporting different width sharpening stones, and a base member for supporting the adapter when connected to the fixture.

Abstract: The invention relates to an automation component or clamping device including a basic housing, at least one jaw movably guided in a jaw guide of the basic housing, and a piston movably guided in the basic housing, wherein the piston has a piston surface, wherein the piston is coupled in terms of movement to the jaw, and wherein a piston rod extending on the piston transversely with respect to the piston surface, wherein the centroid of the piston surface is spaced apart from the central longitudinal axis of the piston rod.

Abstract: Provided is a nipping tool with which it is possible to nip an object, such as a cable, appropriately in accordance with the thickness or size of the object. This nipping tool is a nipping tool in which two members, each including a grip part and an operation part, are rotatably connected, and the operation parts open and close in association with the opening/closing of the grip parts. The grip part has a plurality of holding positions. The shape of the grip part is such that the degree of opening of the operation parts differs when the two members are closed together using the various holding positions.

Abstract: A selectively one-way wrench includes a head, a rotor, a pawl assembly, a switch, a connecting element and an auxiliary element. The pawl assembly includes two pawls. The switch is operable to disengage one of the pawls from the rotor and engage the other pawl with the rotor via the connecting element. The auxiliary element is used to tightly press one of the pawls against the rotor at a time.

Abstract: A power tool is provided including a brushless DC (BLDC) motor, a rectifier that receives an alternative current from a power supply and outputs a rectified signal supplied to a DC power bus, and an inverter circuit having motor switches connected electrically between the DC power bus and the motor. A control module controls a switching operation of the power switches to regulate supply power from the power supply to the motor. The control module controls the switching operation so as to, within a half cycle of the AC power supply voltage waveform, increase current draw from the power supply from a first threshold at or after a first zero-crossing of the half cycle up to a second threshold, and reduce current draw from the power supply from the second threshold up to a third threshold at or prior to a second zero-crossing of the half cycle.

Abstract: An inventive stud removal and installation tool and method of use is disclosed. The inventive tool incorporates a body configured to hold a cage, cam sleeve and jaws. The cam sleeve is capable of being oriented to accomplish either stud removal or installation. The assembly of the tool is modular such that broken elements can be replaced without the need to replace the entirety of the tool.

Abstract: Sockets, tools, and methods for decoupling threadably coupled components. The sockets have an open end sized to receive a distal portion of a first component having threads thereon, a closed end oppositely disposed from the open end, and an interior wall therebetween that defines a cavity. An interior surface of the interior wall has threads thereon configured to threadably couple with the threads of the first component. The tools include a handle configured for rotating the socket about its axis of rotation. The sockets and tools may be used by threadably coupling at least the distal portion of the first component into the opening of the open end of the socket, rotating the socket until the first component contacts a barrier at the closed end of the socket, and then simultaneously applying counter-rotational forces to the socket and a second component such that the first and second components threadably decouple.

Abstract: Disposable torque-limiting mechanisms with upper shank component with a torque-limiting interface, a lower shank component with a torque-limiting interface, and a washer assembly biasing element. Torque-limiting interfaces having a plurality of undulations arranged around an axial bore or drive socket and separated by a plurality of transition regions, with each undulation having an upslope, a peak, and a downslope. The torque-limiting interfaces are configured to engage and disengage to provide torque transmission with predetermined torque limits at various rotational speeds and for amounts of actuations while remaining within a specified operational range.

Abstract: Disposable torque-limiting mechanisms with an upper shank component with a torque-limiting interface, a lower shank component with a torque-limiting interface, and a rubbery spring material biasing element. Torque-limiting interfaces having a plurality of undulations arranged around an axial bore or drive socket and separated by a plurality of transition regions, with each undulation having an upslope, a peak, and a downslope. The torque-limiting interfaces are configured to engage and disengage to provide torque transmission with predetermined torque limits at various rotational speeds and for amounts of actuations while remaining within a specified operational range.

Abstract: An electric hand held pulse tool for performing tightening operations where torque is delivered in pulses to tighten screw joints. The pulse tool includes a bidirectional electric motor, an output shaft, a sensor for monitoring a parameter reflecting a delivered torque pulse, and a control unit for controlling the electric motor. The sensor provides information regarding the monitored parameter to the control unit. The control unit, during a tightening operation performed by the pulse tool in a first direction, controls the motor to provide at least one torque pulse on the output shaft in a second direction that is opposite to the first direction. The sensor monitors a parameter reflecting a delivered torque pulse on the output shaft in the second direction. The control unit also determines information about the nature and state of a joint, due to the torque pulse on the output shaft in the second direction.

Abstract: A device for unfastening fasteners includes an operation device, a cable unit and a working unit. The cable unit is connected between the operation device and the working unit. The operation device includes a first part and a second part pivotably connected to each other by a pivot. The first part includes a first extension with a first hole. The second part includes a second extension with a second hole. A first slot communicates with the first hole. A second slot communicates with the second hole. The cable unit includes a cable and a sheath. The cable extends through the first and second holes via the first and second slots, and connected with an end piece which contacts the first extension. A stop member is mounted to the first extension to close the first slot. The cable is separated from the operation device easily without causing damage to the cable.

Abstract: A modular motorcycle tool kit comprising multiple tool drivers and a plurality of attachable tool components said kit being configured to address most motorcycle repair or service needs. Three drivers include apertures and special step-key shank slots to engage and receive a plurality of tool insert bits and fastener tool heads. The fastener tool heads are coupled to unique step-key shanks which are stronger, more robust, and less expensive to manufacture than comparative fastener tool head shanks. The drivers can be used separately or in conjunction with one another depending on the need of the user. The modular motorcycle tool kit is specifically designed and configured to be an invaluable modular motorcycle tool and at the same time occupy very little space on the motorcycle.

Abstract: A device for mounting a ring gear of an epicyclic gear train, the ring gear including a front ring gear and a rear ring gear, the device including: a plurality of longitudinal guides; a front mounting forming a portion of circle, including: at least two holes for passing the guides; a plurality of first system for supporting and rotating the front ring gear relative to the axis thereof, movable between a first position in which the front ring gear is supported and can rotate relative to the axis thereof and a second position in which the front ring gear is not supported; a rear mounting forming a portion of circle, including: at least two holes for passing the guides; and a plurality of second system for supporting and rotating the rear ring gear relative to the axis thereof, movable between a third position in which the rear ring gear is supported and can rotate relative to the axis thereof and a fourth position in which the rear ring gear is not supported.