Abstract: A method for braze repair of tight cracks in a superalloy component is provided. The method includes directing energy, e.g., from an acoustic energy source, towards surfaces of the tight crack to break up one or more contaminants, corrosion products, or oxides at the surface. The directed energy may cause opposed walls of the tight crack to vibrate to break up the oxides, and to generate a modest heat for allowing infiltration of the tight crack with a braze material. The braze material is then melted at a melt temperature of the braze material but below the melt temperature of the component. The braze material is then solidified to repair the tight crack.

Abstract: A cutting torch guide assembly for cutting beveled openings includes a first rod that is hollow. A first sleeve is positioned around and slidably positionable on the first rod. A pin is coupled to and extends perpendicularly from the first sleeve. The pin is configured to couple to a metal substrate to define an axis of a penetration that is to be cut into the metal substrate. A second rod is positioned in and selectively extensible from the first rod. The first sleeve is positionable to select a diameter of the penetration on an opposing side of the metal substrate. The second rod is positionable relative to the first rod to select a thickness of the metal substrate. A ring coupled to the second rod is configured to insert a nozzle of a cutting torch so that the nozzle is positioned to cut a beveled penetration into the substrate.

Abstract: An orbital welding device for forming a circumferential weld bead to engage adjoining segments of pipe is provided. The device features an annular track ring having an opening for engagement around the pipe. A travel carriage rotationally engaged with the annular track ring has a first motor for rotating the travel carriage and an engaged welding head around the pipe for forming a weld thereon. A second motor is provided to adjust a distance of the welding head from the pipe.

Abstract: A tooth which is an example of a wear-resistant component includes a base made of a first metal, and an overlay disposed in contact with the base to cover a covered region that is a part of a surface of the base. In an overlay edge portion corresponding to a boundary between the covered region and an exposed region other than the covered region on the surface of the base, the exposed region and a surface of the overlay are flush with each other to form a forged surface.

Abstract: A consumable electrode arc welding method includes: setting an optimal voltage and an increasing slope of a short circuit current to correspond to a setting current; feeding a consumable electrode wire; and alternately generating a short circuit condition and an arc condition, thereby carrying out welding, wherein the short circuit current is controlled by changing the increasing slope of the short circuit current according to a difference between the setting voltage and the optimal voltage when the setting voltage is different from the optimal voltage. With this, the increasing slope of the short circuit current and the current value corresponding to the inflection point of the short circuit current are automatically changed.

Abstract: A machine learning device which learns to determine at least one arc welding condition includes a state observation unit which observes a state variable consisting of at least one physical quantity regarding the arc welding and the at least one arc welding condition at least during or after the arc welding, and a learning unit which learns a change in the at least one physical quantity observed by the state observation unit and the at least one arc welding condition in association with each other.

Abstract: A welding-type power supply includes a controller, bus (that can, but need not be preregulated), and an output converter. The controller has a preregulator control output and an output converter control output. The controller may receive bus feedback indicative of a plurality of bus voltages. A bus voltage balancing module in the converter includes a scaled correction module responsive to the bus feedback signal, and the converter control output is responsive to the bus voltage balancing module. The controller may receive load feedback indicative of a load output, have a bus voltage balancing module that includes a load proportional gain module responsive to the load.

Abstract: A flexible wire guide conduit includes a plurality of modules that can be chained together and can pivot and rotate relative to each other. Each module is formed of two halves that are generally mirrors of each other across a mating plane between the halves. Each module includes an upper flange and a lower flange defining a receiving cavity. Each module includes a tongue member sized to correspond to the cavity that is received in the receiving cavity. The flanges include protrusions extending into the cavity to define a pivotable axis. The tongue includes a bore that receives the protrusions of the adjacent module in the chain. The flanges each include a peg extending into the cavity. The pegs are received in slots formed in the tongue and will slide within the slots during pivoting. The pegs and slots define the degree of pivoting permitted between adjacent modules.

Abstract: Embodiments of the present invention are directed to systems and methods of controlling wire feeding in a welding operation, where the wire feeding has a plurality of positive and negative pulses. Embodiments determine an average wire feed speed and compare the average to a desired wire feed speed and then change a parameter of the wire feed pulses to achieve a desired wire feed speed.

Abstract: The example methods and apparatus reduce and/or eliminate adverse effects of welding work pieces having dissimilar compositions. An example method includes depositing a first weld layer on a first end of a first work piece. The first work piece has a first content of a metallic element and the first weld layer has a second content of the metallic element higher than the first content. The example method includes depositing a second weld layer between the first weld layer and a second end of a second work piece to couple the first work piece to the second work piece. The second weld layer has a third content of the metallic element higher than the second content, and the second work piece has a fourth content of the metallic element higher than the first content.

Abstract: In a main metal piece 60 and an inner cylinder 70 serving as cylindrical bodies before welding, a second end surface 75 is an inclined surface that inclines toward an end portion opposite from the second end surface 75 as the second end surface 75 extends toward the center axis, and an angle ?2a is 5° to 15°. Thus, the distance between a first end surface 65 and the second end surface 75 positioned in resistance welding increases toward the center axis, and an angle ?c (=angle ?2a) between the first end surface 65 and the second end surface 75 is 5° to 15°.

Abstract: An additive friction stir fabrication method and system is described which may be used to fabricate and join a rib to a metallic substrate or to repair a defect in a metallic substrate through extrusion. The method may be carried out with or without the addition of preformed ribs. One such method involves feeding a friction-stir tool with a consumable filler material such that interaction of the friction-stir tool with the substrate generates plastic deformation at an interface between the friction-stir tool and a metallic substrate to bond the plasticized filler and substrate together and extrude this material through a forming cavity to form a rib joined to the metallic substrate. Further described is a system for fabricating a rib joined to a metallic substrate through extrusion.

Abstract: An additive manufacturing system includes a surface holding a particulate and a focused energy source configured to generate at least one beam that moves along the surface to heat the particulate to a melting point creating a melt path. A camera is configured to generate an image of the surface as the at least one beam moves along the surface. The camera has a field of view and is positioned in relation to the surface such that the field of view encompasses a portion of the melt path defining a plurality of rasters. The camera generates a time exposure image of at least the portion of the melt path defining the plurality of rasters.

Abstract: An actuator utilizes a voice coil motor with one or more voice coil windings supported on a light weight moveable bobbin that connects at one end to move an object rapidly up to a small number of millimeters translationally along a system axis. The bobbin moves over a distal portion of a center pole of a stator, which supports the voice coil motor magnets. The pole, which acts as a flux path for the voice coil motor, also provides a thin film of air in a gap between the pole and the bobbin via an air path and corresponding holes at the distal end of the pole. The bobbin moves translationally relative to the pole on the thin film of air under the control of the voice coil motor.

Abstract: Vision correction and tracking systems may be used in laser machining systems and methods to improve the accuracy of the machining. The laser machining systems and methods may be used to scribe one or more lines in large flat workpieces such as solar panels. In particular, laser machining systems and methods may be used to scribe lines in thin film photovoltaic (PV) solar panels with accuracy, high speed and reduced cost. The vision correction and/or tracking systems may be used to provide scribe line alignment and uniformity based on detected parameters of the scribe lines and/or changes in the workpiece.

Abstract: A method for accurately producing the drilled hole in a wall of a component fabricated by investment casting process, such as for use in a blade or steam turbine includes the following steps. The 3D data of actual component is obtained from the measurements or from the numerical simulation. The actual model and the ideal model are aligned and compared, a series of cutting planes are given to establish a series of 2D cross-sections of the actual and ideal models after registration. Each cross-section is dispersed into discrete points, the distance between each corresponding points are calculated and formed into 2D displacement. The accurate parametric model consisting of the depth, hole center, and the nominal vector is obtained on the basis of considering the deviations in geometrical and positional values. The drilled hole is then produced according to the corrected parametric drilled-hole geometrical and positional value.

Abstract: A radially slotted welding electrode is disclosed that may be used in conjunction with a companion second welding electrode to conduct resistance spot welding on a workpiece stack-up assembly that includes a steel workpiece and an overlapping adjacent aluminum workpiece, especially when an intermediate organic material layer is disposed between the workpiece faying surfaces of the steel and aluminum workpieces. The radially slotted welding electrode includes a weld face that has a central upstanding plateau and a convex dome portion that surrounds the central upstanding plateau and which includes a plurality of circumferentially spaced trapezoidal weld face sections that include transverse upstanding arcuate ridges. Together, the central upstanding plateau and the trapezoidal weld face sections of the convex dome portion define an annular channel that surrounds the central plateau and a plurality of radial slots that communicate with and extend outwards from the central channel.

Abstract: A solder alloy has an alloy composition consisting of, in mass %: Bi: 0.1% or more and less than 2.0%, Cu: 0.1 to 1.0%, Ni: 0.01 to 0.20%, Ge: 0.006 to 0.09%, and Co: 0.003% or more and less than 0.05%, and optionally Fe: 0.005 to 0.015% and P: 0.1% or less, with the balance being Sn.

Abstract: An arc spot welding method able to give a predetermined weld bead diameter or excess metal height in a back surface weld bead of arc spot welding and able to give a welded joint excellent in both strengths of TSS and CTS and a welding apparatus for working the same are provided. Steel sheets containing carbon in 0.2 mass % or more and having sheet thicknesses “t” or more are arranged overlaid. A backing plate including a non-contact part and a contact part maintaining the back surface of the lower side steel sheet is provided. An arc generation and short-circuit conduction where the welding voltage between the welding wire and upper side steel sheet becomes 10V or less are alternately repeated so that the time period of the short-circuit conduction becomes over 30% to less than 60% per cycle to thereby weld the steel sheets.

Abstract: A roller structure and a manufacturing method thereof are introduced. The roller structure includes a roller rotatable about an axial portion, an end of a bush is fixed to an end of the axial portion, and another end of the bush having an engaging portion coupled to a load, a first stop portion disposed at another end of the axial portion and the bush has a second stop portion positioned opposite to the first stop portion such that the roller rotates between the first stop portion and the second stop portion; wherein the engaging portion of the bush has a feeding space that receives a material of the load to couple the engaging portion to the load. Hence, the roller structure and the manufacturing method thereof provide a modularized roller structure for carrying a load, effectuate modularized assembly and production, enhance assembly efficiency, attain structural streamlining, and cut costs.

Abstract: Methods for manufacturing a tandem guide vane segment that includes an outer platform, a front guide vane, and a rear guide vane, wherein the front guide vane and the rear guide vane are arranged in a firmly fixated manner with respect to one another. One method includes manufacturing an integral front segment section that includes the front guide vane and a front section of the outer platform, manufacturing an integral rear segment section that includes the rear guide vane and a rear section of the outer platform, and connecting the two segment sections to each other.

Abstract: A tool configuration 68, 68? incorporating a preprocessing step 67, 67? and a method incorporating the tool configuration with its preprocessing step, producing an improved locking system of a floor panel 1, 1?. With the special tool configuration, and the preprocessing step changing the properties of the surface layer, certain surfaces are profiled of the joint edge of the floor panel, resulting in decreased tolerances. An equipment having an upper belt or chain guided in a horizontal direction, by an upper guiding device, and configured to press the floor panel vertically towards the lower chain, decreasing the tolerances of the produced floor panel as well.

Abstract: A tensioner, typically hydraulic, for threaded members, the tensioner comprising: a base (4) and a piston (6) defining a pressure space (13) therebetween, the base (4) and piston (6) being arranged to be urged apart along an axis (17) upon introduction of a fluid into the pressure space (13); and a thread-engaging member (7), comprising a body portion (8) of the form of a sleeve and having a threaded interior (30) for engagement with a threaded member (2) and a piston engaging portion (9) carrying a protrusion; in which the piston (6) bears against the protrusion such that the piston (6) exerts a force on the protrusion when urged apart from the base (4) by the introduction of fluid into the pressure space (13); the tensioner further comprising a displacement sensor arranged to determining the relative position of the body portion of the thread-engaging member and the base, the displacement sensor comprising a first part (12) carried on the base (4) and a second part (11) carried on the body portion (8); typi

Abstract: A dental milling machine has idle receptacles arranged in a storage chamber for storing a plurality of blanks. The blanks each are placed without frame as a frameless blank in the idle receptacles. A transfer device with a transport arm is arranged in the storage chamber. A work chamber adjoins the storage chamber. A transfer opening is arranged between work chamber and storage chamber. The transport arm grips a frameless blank stored in the storage chamber and moves it through the transfer opening into the work chamber. A workpiece holder arranged in the work chamber receives the frameless blank from the transport arm. The workpiece holder grips the frameless blank by a receiving rim of the frameless blank. The workpiece holder, for milling the frameless blank in the work chamber by a milling tool, holds by a clamping action the frameless blank at the receiving rim.

Abstract: A tool magazine (40) is able to move among a machining position where a tool (2) attached to a spindle (30) machines a workpiece, a tool exchange position where the tool (2) attached to the spindle (30) is exchanged, and a retreat position where an automated workpiece carrying device is not disturbed in placing or removing of the workpiece with respect to a workpiece placing part (20). The workpiece is placed on the workpiece placing part (20) from above or removed upward from the workpiece placing part (20) by the automated workpiece carrying device.

Abstract: A machining unit for a machine tool and machine tool having such a machining unit comprises a head carrier that is attached to the machine tool, a pivot head held on the head carrier in such a way that the pivot head can be pivoted about a pivot axis, a working spindle, which is arranged on the pivot head and has a spindle axis that is tilted in relation to the pivot axis, a spindle motor, which is arranged in the head carrier and has a drive shaft arranged parallel to the pivot axis, and a drive transmission for transmitting the rotational motion of the drive shaft of the spindle motor to the working spindle, wherein the drive transmission has a transmission stage that can be shifted. The pivot head has a shifting transmission shaft that is oriented coaxially to the pivot axis of the pivot head, wherein the transmission stage that can be shifted has a hollow shaft movably supported on the shifting transmission shaft of the pivot head.

Abstract: A metal chip conveyor having an internal chip removal structure includes an endless conveyor belt. An accommodating room of a machine body is divided into an inner space and an outer space. Two sides of the conveyor belt assemble with chains each having chain links. Each chain link has a first opening facing the inner space and a second opening facing the outer space. A guiding block is arranged in the inner space. The guiding block has a bottom surface, a blocking face, and a guiding gap. The bottom surface faces to the conveyor belt. The guiding gap lies at one side of the blocking face and communicates with the chain links. Therefore, metal chips are stopped by the blocking face and are moved to the guiding gap, then drop to the outer space via the chain links.

Abstract: An alignment tool for a laser machine tool includes a frame that is mountable to the laser cutting head of the laser machine tool; a first indicator mounted to the frame along an X-axis; a second indicator mounted to the frame along a Y-axis; a position device mounted to the frame, the position device operable to reference upon a surface of the laser cutting head to align the first indicator along an X-axis of the laser cutting head, and to align the second indicator along a Y-axis of the laser cutting head; and a fastener mounted to the frame, the fastener operable to retain the frame to the laser cutting head.

Abstract: A substrate processing apparatus includes a polisher configured to polish a substrate using a polishing liquid, a first cleaner configured to clean the substrate polished by the polisher using sulfuric acid and hydrogen peroxide water, a second cleaner configured to clean the substrate cleaned by the first cleaner using a basic chemical liquid and hydrogen peroxide water, and a drier configured to dry the substrate cleaned by the second cleaner.

Abstract: A lens edging system, including: a spectacle frame measurement device and an order-side terminal device disposed at a spectacle lens order side; and an order-receiving side controller disposed at a spectacle lens order-receiving side, wherein the order-side terminal device and the order-receiving side controller are connected to each other via a communication line, the system further including: an information memory part for storing and holding information regarding a shape of a probe in the spectacle frame measurement device as probe information; and an edging shape calculation part for performing data correction reflecting an abutting mode of the probe indicated by the probe information when lens edging shape data is created at the spectacle lens order-receiving side, wherein a suitable size correction can be performed even when a frame shape of any kind of a spectacle frame is measured by the spectacle frame measurement device by performing the data correction.

Abstract: A method for fabricating an integrated circuit includes providing a partitioned chemical-mechanical planarization (CMP) model having a plurality of model parameters that include (i) device specific model parameters and (ii) at least one common parameter. (i) include a pre-CMP thickness of a film including a first material on an in-process device, a post-CMP target thickness for the film on the in-process device, and device group properties that account for device structure for the in-process device. (ii) includes a polish rate from an unpatterned pilot wafer having a second material thereon. The second material need not be the same as the first material. The polish time is automatically determined using the partitioned CMP model. A CMP process is performed on a patterned product wafer having a plurality of the in-process devices using a recipe including the polish time.

Abstract: A substrate polishing apparatus is disclosed that includes a polishing platform having two or more zones, each zone adapted to receive a different slurry component. A substrate polishing system is provided having a holder to hold a substrate, a polishing platform having a polishing pad, and a distribution system adapted to dispense, in a timed sequence, at least two different slurry components selected from a group consisting of an oxidation slurry component, a material removal slurry component, and a corrosion inhibiting slurry component. Polishing methods and systems adapted to polish substrates are provided, as are numerous other aspects.

Abstract: Some implementations of a retaining ring has an inner surface having a first portion formed of multiple planar facets and a second portion that adjoins the first portion along a boundary and includes a frustoconical surface that is sloped downwardly from outside in. Some implementations of the retaining ring have a crenellated or serpentine inner surface, and/or an inner surface with alternating region of different surface properties or different tilt angles.

Abstract: A method of detecting clogging of a chuck table includes an imaging step of capturing an image of a holding surface of the chuck table while air and water are being ejected to the holding surface of the chuck table, an image processing step of binarizing the captured image into a binary image, and a decision step of deciding a clogged ratio of the chuck table on the basis of the binary image.

Abstract: An abrasive article including a body including a bond material having an inorganic material including a ceramic, abrasive agglomerates including silicon carbide contained within the bond material, and a permeability of at least 60.

Abstract: Embodiments described herein generally relate to a grinding disc is being rotatably drivable around an axis of rotation. The grinding disc has a front side as well as a rear side facing away from the front side. The grinding disc further includes a multi-layered circular grinding blank packet with a plurality of circular grinding blanks. The grinding blanks are flatly stacked over each other along the axis of rotation and in which each grinding blank includes a central through opening. The central through openings form together a recess of the circular grinding blank packet. Wherein the grinding disc has a backing plate, which is arranged in the recess, and the circular grinding blanks each are fixed individually to the backing plate.

Abstract: A hands-free dual clamp device includes two clamping units, each having an upper clamping body, a lower clamping body, a mating portion, and a shaft module. The shaft module is spirally inserted through the upper and lower clamping bodies and is rotatable, so as to enable the upper and lower clamping bodies to be adjustable at angles with respect to each other and cooperatively form a clamping space for clamping an external object. A connecting module includes at least a connecting unit having two opposite end portions, which are respectively provided with a first connecting element and a second connecting element. The first connecting element connected to the mating portion of one of the clamping units, and the second connecting element connected to the mating portions of the other of the clamping units, so that the two clamping units are linked together with the connecting module.

Abstract: A portable self-supporting vertical wall assembly jig residing at a construction site can include two parallel vertical supports, two perpendicular horizontal supports, and a removable wall platform. The vertical supports can each have one hinge which reduces the height by at least one third. The two perpendicular horizontal supports can include a top horizontal support and a bottom horizontal support. The removable wall platform can be able to be removed after construction of a vertically assembled wall. When the platform is removed from the jig, the platform completely can support the wall and can be able to transport the wall to location different from the assembly jig without additional construction equipment. The wall can include a top plate, a bottom plate, and two vertical elements. The top and bottom horizontal support can include spacers which temporarily brace the two vertical elements of the wall during vertical assembly of the wall.

Abstract: A spanner wrench assembly including a base plate having a gripping portion extending from a handle portion and defining an arcuate cavity with an open end. At least one support plate is secured to the gripping portion and substantially matches a configuration of the arcuate cavity. The support plate is of a lesser density material than the base plate. An engagement plate substantially matches the configuration of the arcuate cavity and is secured with respect to the at least one support plate. A cover defines one elongate aperture extending to an open mouth portion formed by an adjacent end of the cover, and another elongate aperture extending to a closed mouth portion dimensioned to accept a connector head which is wider than the elongate apertures.

Abstract: An apparatus and method for assisted buckle release employing a generally C-shaped or U-shaped assistive device adapted to depress a buckle's release button, such as a button typical of a child car seat restraint harness, and thereby assist in unlocking the buckle.

Abstract: A driving device is provided comprising a hand-held housing with a piston member arranged therein for transmitting energy to a securing element to be driven in; an interchangeable propellant charge and a combustion chamber arranged between the propellant charge and the piston member, the combustion chamber extending around a central axis (A); and an actuator, by which the energy transmitted by the propellant charge to the piston member can be variably adjusted. The driving device also includes a blow-off channel connected to the combustion chamber that can be exposed by a movable slide of the actuator and the movable slide comprises a body which completely encircles the central axis (A).

Abstract: A stapler comprises a base (1), a staple pin track (2), a top blade assembly (3), a hinge (4) and an upper cover (5). Tail ends of the staple pin track, the top blade assembly and the upper cover are all hingedly connected to a tail end of the base. A first guide part is disposed on a side wall of the upper cover, and one end of the hinge is slidably connected to the first guide part. The first guide part is set in a structure that when the upper cover is pressed, one end of the hinge can move to the tail end of the upper cover and press downwards. A second guide part is disposed on the side wall of the base, and the other end of the hinge is slidably connected to the second guide part. The second guide part is set in a structure that when the upper cover is pressed, the other end of the hinge can move to a front end of the base, and when the upper cover is opened, the other end of the hinge is separated from the base.

Abstract: A holding and dispensing device may conveniently store fasteners and permits a user to easily and quickly retrieve and dispense fasteners, such as staples, one at a time, without the risk of fasteners falling out of the device, or protruding in a manner that may harm the user. Embodiments may be especially suitable for a core of staples. The present disclosure further relates to methods of holding fasteners in a fastener holder and methods of dispensing fasteners.

Abstract: A rational technique which can realize vibration suppression and reduction of unstable driving elements of a striker. A representative power tool, a first compensation mechanism moves a swinging mechanism from a swinging mechanism reference position to a swinging mechanism moving position and moves a cylinder to a second side, thereby increasing the volume of an air chamber. Further, the second compensation mechanism moves an intermediate element from an intermediate reference position to an intermediate element moving position and moves a striking element to the second side, thereby compensating the volume of the air chamber.

Abstract: A hand-power tool includes at least one tool spindle and a drive unit configured to drive the at least one tool spindle at a rotational speed greater than 10,000 min?1. The hand-power tool further includes at least one charging energy input and a tool chuck. The at least one charging energy input is arranged on a hand-power tool housing face that faces the tool chuck.

Abstract: A power tool is provided including a gear case having a spindle, a motor case connected to a rear end of the gear case, a handle portion attached to a rear end of the motor case, and a motor housed inside the motor case. The motor includes a stator, a rotor rotationally arranged inside the stator, and a fan in rotational connection with the rotor. At least one air intake is arranged at least one of the motor case or the handle portion near the rear end of the motor case. A power module including power switches and a heat sink is housed in at least one of the motor case or the handle portion near the rear end of the motor case such that rotation of the fan causes air flow to enter through the air intake and flow near the heat sink and through the motor.

Abstract: A pad handle assembly having a head and a handle. The handle has an elongated member with a pressure block connected to one end. A pad support block is removably connected to the pressure block to selectively secure a pad around the pad support block.

Abstract: A guiding device includes a rail which extends in a direction, a plurality of runners distributed in the direction, and, for each runner, at least one runner/rail connection connecting each runner and the rail, configured to allow each runner to pivot independently from the other runners relative to the rail, around an axis of pivoting parallel to the direction.

Abstract: A merchandise product includes a tool bit case having first and second housing members. The tool bit case also includes a first modular tool bit holder and a second modular tool bit holder each movably coupled to the first housing member. The merchandise product includes a clamshell packaging having a front clamshell portion defining a first cavity and a rear clamshell portion defining a second cavity. The front clamshell portion is coupled to the rear clamshell portion at an interface. The interface defines a plane between the front clamshell portion and the rear clamshell portion. The first cavity and the second cavity contain the tool bit case while the tool bit case is in an open position. A first portion of the tool bit case extends beyond the plane in a first direction, and a second portion of the tool bit case extends beyond the plane in a second direction.

Abstract: A tool storage rack provides receiving bays for positioning tools therein. An elastomeric portion of the rack provides gripping and cushioning for the tool and further provides gripping for lessening the chance of movement or sliding of the rack from position.