Abstract: Method for removing at least part of a sea platform comprising a support structure with at least one cylindrical support beam located under water, which method comprises the steps of; providing a device for cutting one of the at least one cylindrical support beams, attaching the device in the circular configuration under water to one of the at least one cylindrical support beams with the fastener, wherein the nozzle openings of the molten metal jet cutting units are directed to and at least partly surround said cylindrical support beam, igniting the fuel material of the molten metal jet cutting units with the igniter to cut said surrounded cylindrical support beam with the molten metal jetted out of the nozzle openings, lifting the disconnected part of a platform to be removed with a removal vessel provided near the support structure, and transporting the disconnected part of the sea platform to be removed to a different location.

Abstract: A process for repair of a surface (32) of a substrate (30) including the application of an energy beam (40) and vibratory mechanical energy (42) to the surface in a region of a discontinuity (34) in order to form a renewed surface (48) on the substrate. A powdered flux material (36) may be disposed over the discontinuity and melted in order to trap and remove contaminants (28) into a layer of slag (46). The vibratory mechanical energy may be applied to dislodge contaminants within the discontinuity, to add friction heat to the discontinuity, to assist in the flotation of the slag, to remove solidified slag, and/or to provide stress relief of the renewed surface.

Abstract: An assembly may comprise a first part including a first surface, and a second part including a second surface and a bottom edge having sloped regions and at least one well between the sloped regions. The assembly may further comprise a brazed joint joining the first surface to the second surface. The at least one well may be configured to collect excess braze material from the brazed joint.

Abstract: Within examples, a method of manufacturing a double-walled titanium conduit is described. Example methods include stitch welding multiple concentric sheets to form a stitch layer, providing the stitch layer between an inner wall and an outer wall of the double-walled titanium conduit, circumferentially seam welding the inner wall and the outer wall to the stitch layer to create a welded assembly, die forming the welded assembly at temperature and pressure to form inner structures between the multiple concentric sheets according to stitch welding lines and to enable a diffusion bond process among the inner wall, the stitch layer, and the outer wall, and removing the double-walled titanium conduit from the die.

Abstract: A welded article includes at least two juxtaposed steel components, each having a tensile strength of at least 1200 MPa, and a weld joint between the juxtaposed steel components. The weld joint is characterized by a volume fraction in the range of 1% to 50% of an essentially homogenous dispersion of austenite having an average particle size in the range of 10 nanometers to 50 micrometers.

Abstract: A flux used for bonding a solder includes: 75 wt % or more of ethylene glycol polymer represented by the following formula: HO(CH2CH2O)nH [n is an integer of 4 or more], wherein an evaporation of the ethylene glycol polymer while being heated is terminated at a temperature equal to or greater than a bonding temperature of the solder.

Abstract: A system and method are disclosed for polishing and lubricating an aluminum welding wire. The system and method draw stock aluminum wire from a spool, subject the stock wire to a plurality of drawing and thermal treatment steps to obtain a wire having a final diameter suitable for use in a continuous welding apparatus. Immediately after the final drawing step, the wire is subjected to a polishing and lubricating process in which a cord that is impregnated with a lubricant is passed over the surface of the wire. The cord serves to remove contaminants, such as metal fines, from the surface of the wire, and also to provide a layer of lubricant over the surface of the wire. The resulting wire has an improved appearance, will not clog the automatic welding apparatus, and the lubricant will not contribute adversely to weld porosity in use.

Abstract: A thermal-management system, for use in controlling temperature of at least a first workpiece of multiple workpieces being joint. The thermal-management system includes a thermal sleeve sized and shaped to at least partially surround the first workpiece during operation of the thermal-management system. The thermal sleeve comprises a fluid compartment configured to hold heat-transfer fluid, such as nanofluid, for use in heating or cooling the first workpiece during operation of the thermal-management system. In various embodiments, the thermal-management system includes a fixture portion having an elongate channel for affecting temperature by way of heat-transfer fluid passed through the channel. In some embodiments, the thermal-management system includes a heat-transfer fluid bath body for holding heat-transfer fluid to cool or heat workpieces being welded together.

Abstract: A profile piece includes: an extruded piece of a first material having a mouth portion along at least part of its length; and an insert of a second material different than the first material, the insert attached to the extruded piece by the mouth portion, wherein the insert is configured for welding the profile piece to a component of a third material different than the first material.

Abstract: A workbed comprises a plurality of parallel support members with each support member having a first edge with a contact surface of a specific configuration. A second, opposed edge with a second contact surface on the support member is also provided with the same specific configuration. As a result, instead of replacing the support member each time the first edge's support surface is worn or degraded, it can be flipped, or reversed so that the second, edge's support surface of the support member is used to form the workbed.

Abstract: A welding jig for pedicle screw has a jig core, a head holder, and a pair of wing holders. The jig core includes a first mounting part inserted into a screw head of a pedicle screw, and a second mounting part to which a pair of wings to be welded to the screw head are attached to an outer surface thereof. The head holder covers the screw head and locks the screw head to the first mounting part, and the pair of wing holders covers the pair of wings and locks the pair of wings to the second mounting part by being coupled to each other. A welding apparatus for pedicle screw includes the welding jig for pedicle screw, a turntable, and a welding torch. The turntable has the jig locked thereto, and the welding torch applies power to the welding regions of the wings and the screw head.

Abstract: Refurbishment of hot gas path components of gas turbine engines can now be performed locally in lieu of the traditional use of a specialized fixed regional repair facility. A mobile manufacturing platform (10) is provided with the capability to inspect and to repair ceramic coated superalloy alloy components, including the ability to perform flux assisted laser processing (68) of powdered materials. The mobile platform may include a powder mixing capability (32) for custom on-site mixing of proprietary powder compositions from a standardized powder inventory (34). A communications element (36) conveys the proprietary powder compositions from a remote home office location (38). Superalloy components can now be repaired (62) or fabricated (80) on-site by qualified technicians rather than certified welders. The mobile platform may be self-powered by a vehicle hybrid power unit or a renewable energy source.

Abstract: Embodiments of methods are disclosed for determining at least one dimension or a wear characteristic of a superabrasive element, such as a polycrystalline diamond cutting element. In an embodiment, a method for characterizing a superabrasive element using two-dimensional images is disclosed. Two images of a superabrasive element are obtained. A relationship between two dimensional coordinates on the two images and three-dimensional coordinates on the superabrasive element may be approximated using projective transformation techniques. A wear flat dimension on the superabrasive element may be determined or calculated using the approximated relationship between the two dimensional coordinates on the two images and the three-dimensional coordinates on the superabrasive element.

Abstract: A method for the production of a piston made of steel, for an internal combustion engine, in which the upper piston part is produced using the forging method, and the lower piston part is produced using the forging or casting method, and they are subsequently welded to one another. To simplify the production method and make it cheaper, the upper piston part is forged using the method of hot forming and of cold calibration, to finish it to such an extent that further processing of the combustion bowl and of the upper cooling channel regions can be eliminated.

Abstract: An entrance floor system is provided. The entrance floor system includes a base mat and a plate. The base mat has opposing bottom and top surfaces. The bottom surface of the base mat is configured to rest on a floor surface. The plate has opposing bottom and top surfaces. The bottom surface of the plate is configured to rest on the top surface of the base mat. The top surface of the plate has a border region and a non-border region. The non-border region is substantially parallel with the bottom surface of the plate and the non-border region has a pattern machined therein. The pattern includes a plurality of slots. At least one slot is configured to receive fluid and debris. The top surface of the plate in the border region includes a transition from the floor surface to the non-border region of the top surface of the plate.

Abstract: In a method for producing a spur-cut gear wheel, a plurality of individual components are provided with at least one hub, a disk wheel and a ring gear. The individual components are subjected to at least partial mechanical soft machining and joined by using a welding method. At least the ring gear is hardened and hard machined. Before carrying out a grinding burn test by using the nital etching process, gaps present on the rear side in the area of the welds produced during welding are sealed by using a sealing material that is resistant to nitric acid.

Abstract: A method for producing a drill bit includes preparing a metal shank and a metal drill, with the metal shank having a hardness greater than a hardness of the metal drill. Each of the metal shank and a metal drill includes an end having an end face. The metal shank and the metal drill are connected end to end, with the end face of the metal shank coaxially abutting the end face of the metal drill. The ends of the metal shank and the metal drill connected end to end are welded to form a molten pool at the welding area. A surface treatment is conducted on the welding area after welding. The welding area is annealed after the surface treatment.

Abstract: A drilling and milling machine, in particular for component parts of aircraft structures, comprising electric motors powered by a power unit and controlled by a control unit, said machine being connected to a general power supply; the power unit and the control unit are rigidly connected to the machine and the general power supply is separated from the machine.

Abstract: A machine tool includes: a lower tool rest on which a plurality of tools are mounted; a motor provided at the lower tool rest, for rotating a rotating tool when the rotating tool is mounted on the lower tool rest; and a tool holder attached to the lower tool rest, for detachably holding the tool. The tool holder has a clamping mechanism portion operating between a clamping state of clamping the tool and an unclamping state of unclamping the tool, as a result of transmission of motive power generated at the motor. With such a configuration, the clamping mechanism portion for automatically clamping and unclamping the tool held in the tool holder on the tool rest is provided with a simple configuration.

Abstract: A workpiece discharge device for a machine tool is provided with a container, which is mounted on a turret and receives a workpiece held by a spindle from a receiving port, and a storage box, which stores the workpiece inside the container by using a revolution of the turret and passing through a chute. The container is mounted on the turret and is capable of swinging around a swinging shaft which is parallel to a revolving axis of the turret, and the receiving port is arranged to direct vertically upward in a predetermined indexing angle range of the container when the workpiece is received.

Abstract: A numerically controlled machine tool, including a machine bed, a cabin having a cabin wall which embraces at least part of the machine bed, and at least one shaped element, which has a substantially panel-shaped basic form and is attached to the machine tool in such a way that a cavity is present between the shaped element and the cabin wall and/or the machine bed.

Abstract: The feed rod device of a machine tool is equipped with first and second planetary gear speed reducers (60, 80), each of which is obtained from an inner element (62, 82), outer element (64, 84), and intermediate elements (66, 68, 86, 88, 90) that are disposed between the two, the elements being disposed so as to be mutually rotatable and combined in series so that one of the three elements is a fixed section, one of the two remaining elements is the input section and the other is the output section. The element that is the input section of the first speed reducer (60) and the element that is the input section of the second speed reducer (80) are connected to a single drive source (Ma). The element that is the output section of the first speed reducer (60) and the element that is the output section of the second speed reducer (80) are connected to form a single output section.

Abstract: A profile element for forming a frame element for a cabin wall of a numerically controlled machine tool is disclosed. A cross-section of the profile element has at least one receiving section for receiving a first securing element, at least one arch-shaped section, and at least one connecting section for connecting the frame element to the cabin wall of the machine tool. The arch-shaped section is arranged between the receiving section and the connecting section.

Abstract: A rotating chuck includes a coolant groove arrangement integrally along a shank-receiving bore of the rotating chuck. The groove arrangement defines a flow path in fluid communication with front and rear bore ends. The groove arrangement includes one or more slanted groove portions opening out to, and being inwardly inclined towards, a front chuck end of the rotating chuck.

Abstract: A foreign-substance discharge mechanism includes: a lubricating-liquid groove provided on a sliding surface of a wedge member and configured to receive a lubricating liquid; and a foreign-substance collector provided to the lubricating-liquid groove and configured to collect foreign substances existing in the lubricating-liquid groove. A first end and a second end of the lubricating-liquid groove are spaced apart from each other in a relative movement direction of the wedge member and the table bed. Disadvantages caused by the presence of the foreign substances between the sliding surfaces can be easily avoided by reliably collecting the foreign substances existing between the sliding surfaces using the lubricating-liquid groove and the foreign-substance collector.

Abstract: Disclosed techniques include creating a pressure differential within an interior of a dual-wall component relative to pressure at an exterior of the dual-wall component, fabricating a hole in a first wall of the dual-wall component, while fabricating the hole in the first wall of the dual-wall component, acoustically monitoring the hole fabrication, while acoustically monitoring the hole fabrication, detecting breakthrough of the first wall of the dual-wall component based on an acoustic signal due to gas passing through the fabricated hole, and based on the acoustic signal, ceasing the fabrication of the hole.

Abstract: A mower reel grinding apparatus including at least one bracket moveable in a horizontal plane along a positioning axis to any one of a number of predetermined positions and configured to releasably secure to a pivot mechanism of a plurality of types of mower units, the pivot mechanism having a pivot axis, each type of mower unit including a cutting reel positioned at a known location relative to the pivot axis, and each of the predetermined positions corresponding to at least one type of mower unit of the plurality of types of mower units, wherein the at least one bracket is moved to the predetermined position corresponding to the type of mower unit secured thereto such that the cutting reel is positioned at a desired grinding position along the positioning axis when the pivot axis is secured to the bracket.

Abstract: A motorized blade rest apparatus for a grinding system includes a carriage, a ram assembly, a work rest assembly, a motor, and a computer processor. The carriage moves a regulating wheel along a first axis towards and away from a work wheel. The ram assembly, which moves along a second axis parallel to the first axis, supports the carriage and the work rest assembly. The work rest assembly includes first and second slide portions and a work rest blade. The first slide portion is mounted on the ram assembly. The second slide portion, which is movable relative to the first slide portion, moves along a third axis perpendicular to the first axis. The work rest blade is mounted on the second slide portion. The motor is coupled to the second slide portion, and the computer processor controls the motor to move the second slide portion along the third axis.

Abstract: A polishing method is described for polishing a machine component comprising at least one airfoil portion comprised of a suction side, a pressure side, a leading edge and a trailing edge. The method provides for arranging the machine component in a container and constraining the machine component to the container. A polishing mixture is added in the container, and the container is caused to vibrate together with the machine component constrained thereto, thereby generating a polishing mixture flow along the airfoil portion until a final arithmetic average roughness is achieved.

Abstract: A multi-layered polishing pad arrangement includes a first polishing pad layer having a first top and a first bottom major surface, a second polishing pad layer having a second top and a second bottom major surface, and a coupling arrangement disposed between the first bottom surface and the second top surface. The thickness of each of the first and second polishing pad layer ranges between 0.125 mm and 10 mm.

Abstract: A resin-bonded grinding disk for use on a hand-held power tool includes a clamping flange. The resin-bonded grinding disk includes a top side, an underside arranged opposite to the top side, a grinding disk surface area, a central cutout configured to hold the grinding disk in the clamping flange, a first reinforcement fabric arranged on the top side, and a second reinforcement fabric arranged on the underside. The first reinforcement fabric comprises a first reinforcement fabric surface area which substantially corresponds to the grinding disk surface area. The second reinforcement fabric comprises a second reinforcement fabric surface area which is smaller than the grinding disk surface area.

Abstract: The present application relates to polishing pads for chemical mechanical planarization (CMP) of substrates, and methods of fabrication and use thereof. The pads described in this invention are customized to polishing specifications where specifications include (but not limited to) to the material being polished, chip design and architecture, chip density and pattern density, equipment platform and type of slurry used. These pads can be designed with a specialized polymeric nano-structure with a long or short range order which allows for molecular level tuning achieving superior thermo-mechanical characteristics. More particularly, the pads can be designed and fabricated so that there is both uniform and nonuniform spatial distribution of chemical and physical properties within the pads.

Abstract: In accordance with an embodiment, a polishing apparatus includes a polishing table and a polishing head. A retainer ring is attached to a surface of the polishing head. The surface of the polishing head faces the polishing table. The retainer ring includes a ceramic material. The fracture toughness of the ceramic material is 4 MPa·m1/2 or more.

Abstract: The positioning of a cylindrical workpiece (that has to be machined by grinding) can be performed particularly precisely if the workpiece abuts to at least one, preferably two, static supporting elements and is fixed in a collet of a spindle, which allows a wobble compensation as well as a radial displacement of the spindle axis relative to the longitudinal axis of the workpiece.

Abstract: A mounting system for mounting of a tool having a cylindrical cavity, the system comprising a shaft having a key-zone and a key and a collar against which a spring can be positioned. The system comprises an adapter, with a seat and a keyway so that the drive shaft can be slid into the adapter and can be rotated therein when the driving shaft is slid against the spring in the adapter. After rotation the key is blocked behind a shoulder in the recess.

Abstract: Methods for treating texturized surfaces of sputter targets in order to improve adhesion and retention of deposited particles thereon. The target surfaces may first be texturized by a precursor texturizing method such as bead blasting, grit blasting, plasma spraying, or a twin-wire-arc spraying (TWAS) method. The thus textured surface is then sprayed or blasted with ice particles to form an optimized textured surface. The ice particles may comprise sublimable particles such as frozen carbon dioxide or dry ice. Also, argon may be used as exemplary ice particles.

Abstract: The invention relates to implement the sealing, porosity and sweeping functions, combined. For this purpose, the present invention proposes to confine the waste and to suction the waste at the ejection head by means of a sufficiently flexible connection, such as to remain in contact with the machining area. According to an embodiment, a portable machining machine (1) operated by a pressurized jet (112) includes a waste recovery system (5), an injection head (11) which is provided with a nozzle (111) having an axis (A1) that is substantially perpendicular to the surface to be machined (4a) and which is driven by a digitally controlled two-axle guide system, the ejection head (11) being extended by an enclosure (12) to the surface area to be machined (4a). In addition, the enclosure (12) comprises a tubular portion (121) consisting of two walls (12a, 12b) which slide coaxially along the axis (A1) and a double-pivot articulation device (123).

Abstract: Polycrystalline diamond constructions comprises a diamond body attached to a metallic substrate, and having an engineered metal content. The body comprises bonded together diamond crystals with a metal material disposed interstitially between the crystals. A body working surface has metal content of 2 to 8 percent that increases moving away therefrom. A transition region between the body and substrate includes metal rich and metal depleted regions having controlled metal content that provides improved thermal expansion matching/reduced residual stress. A point in the body adjacent the metal rich zone has a metal content that is at least about 3 percent by weight greater than that at a body/substrate interface. The metal depleted zone metal content increases gradually moving from the body, and has a thickness greater than 1.25 mm. Metal depleted zone metal content changes less about 4 percent per millimeter moving along the substrate.

Abstract: A nonwoven abrasive article includes: a lofty open nonwoven fiber web, an abrasive layer bonded to the lofty open nonwoven fiber web, and a peripheral antiloading composition disposed on the abrasive layer. The peripheral antiloading composition comprises at least 50 percent by weight of wax having a melting point onset of from 180° F. (82° C.) to 290° F. (143° C.). A method of abrading a workpiece using the nonwoven abrasive article is also disclosed.

Abstract: A backing plate for abrasive flap wheels, in which openings are configures as slots, which are formed in the outer flange and which are radially open on its outer edge

Abstract: A universal roller rebuilder apparatus and method includes a first holder, with an outer angled contact rim. The outer angled contact rim at least partially surrounds an access hole and further is conformed to contact with a roller. The roller includes at least one removable element inside the roller. A second holder includes an outer angled contact rim that at least partially surrounds an access hole. A pair of end brackets are connected with a support frame where the first holder is connected with one end bracket and the second holder is connected with the other end bracket. The pair of end brackets support the first holder and the second holder in alignment such that the roller is held in position with the aligned holders. A puller aligns and connects with the roller in the same alignment as the first holder and the second holder.

Abstract: A multi-mode one-way wrench includes a head, a toothed wheel, a leading pawl, at least one following pawl and a switch. The head includes cutouts in communication with a chamber. The toothed wheel rests in the chamber and includes teeth. The pawls are movably rest in the cutouts and adapted for alternate engagement with the toothed wheel. The following pawl includes a stem. The switch rests on the head and made with at least one arched groove for receiving and guiding the stem to move the following pawl between a first mode for engagement with the toothed wheel and a second mode kept from the toothed wheel. The cutouts are biased from one another by an angle of 360°×(M+1/L)÷N, wherein L is an integer for representing the number of the cutouts, M is any proper integer, and N is an integer for representing the number of the teeth.

Abstract: A ratcheting screwdriver having a drive shaft for transmitting motion and torque as well as two annular drive gears and an annular driven gear, the drive gears and driven gear each have gear-engaging teeth. The drive gears have tabs and the driven gear has a plurality of flat-members. The drive gears and driven gear each have an opening that the drive shaft passes through. The screwdriver also includes at least two actuation balls and one stop ball partially disposed within a ball-housing support member, the ball housing member has an internal cavity to house the components. A user turns handle to transmit rotational torque to the tabs on the drive gears, the gear-engaging teeth of the drive gears transmit torque to the driven gear and the flat-members on the driven gear transmit torque to the drive shaft.

Abstract: A torque wrench assembly includes a torque wrench head being adapted to both tighten and loosen a fastener, wherein the torque wrench head includes fastener engaging means and drive means for driving the fastener engaging means. The torque wrench assembly also includes means for mounting the torque wrench assembly on a support means, wherein the torque wrench head and the mounting means are adapted so that the torque wrench head is capable of both tightening a fastener and loosening a fastener.

Abstract: An impact rotation tool includes a motor, an impact mechanism, and a housing, which covers the motor and the impact mechanism. The impact mechanism includes an output shaft, which is rotatable by the motor, and an anvil, which is rotatable integrally with the output shaft. The impact mechanism applies a striking impact to the anvil when the motor outputs rotation. The impact rotation tool further includes a motor seat and a vibration reducer. The motor seat is fastened to the motor to hold the motor in the housing. The vibration reducer is located in the housing to reduce striking vibration transmitted to the motor.

Abstract: A hand tool includes a body and a ratchet head which is pivotably connected to the body. A pawl and a controller are connected to the body. The ratchet head is engaged with the pawl by first and second engaging teeth. The controller has a recess which has two curved faces. The controller has two grooves and each groove has a first stop face and a second stop face. The first and second stop faces contact the two curved faces. The pawl is not moveable, and the first engaging teeth are engaged with the second engaging teeth so as to fix the ratchet head relative to the body at an angle. When the two curved faces are moved to face the two grooves, the controller is moved, and the ratchet head is pivotable relative to the body.

Abstract: A wrench includes a first part having a first pivotal portion, a second part having a second pivotal portion, a connector pivotally connected in the first and second pivotal portions by two pins extending through the first and second pivotal portion and the two ends of the connector so as to pivotally connect the first part and the second part. Each of the first and second parts is pivotable relative to the connector.

Abstract: A palm wrench includes a C-shaped body and a driving head. The driving head is pivotably and rotatably located within the body. The body has an opening, and the driving head has two function ends on two sides thereof. The driving head is pivotably connected to the body by two pivots which extend through the body and are connected to the driving head. The driving head can be rotated with respect to the body, and the user can grapes the body to rotate the driving head to output torque.

Abstract: A barrel type ratchet wrench with a snap-in structure including a wrench body having a ratchet acting head with a shallow groove adjacent to a hollow barrel. Moreover, a positioning bolt hole and a guide slot are positioned within the shallow groove. The positioning bolt hole is provided for receiving a direction switching lever and a positioning bolt of the ratchet module. A fixing plate and a snap plate are positioned under the direction switching lever. The lock plate has an external shape similar to the profile of the shallow groove and includes a snap portion, a long hole, a pushing portion and a bottom guide projection. The bottom guide projection and an elastic element are firmly positioned in the guide slot of the wrench body in such a way that the bottom guide projection of the engaging piece is constantly biased by the elastic element. The lock plate is fixed by screwing two screwing elements into corresponding screw holes of the wrench body.

Abstract: A gas spring-powered fastener driver including a cylinder, a moveable piston positioned within the cylinder, a driver blade attached to the piston and movable therewith between a ready position and a driven position, a lifter operable to move the driver blade from the driven position to the ready position, a transmission for providing torque to the lifter, a first clutch mechanism permitting a transfer of torque to an output shaft of the transmission in a single rotational direction, and a second clutch mechanism limiting an amount of torque transferred to the transmission output shaft and the lifter.