Abstract: In the joined body (10) in which the conductor (12) and the substrate (14) are joined by the joining material (13), the joining material (13) includes a sintered body formed by sintering silver powder. A sintered body having a porosity of 8% to 30% and a surface roughness Ra of a joining surface of 500 nm or more and 3.3 ?m or less is adopted.

Abstract: Methods of additive manufacturing using noble metals and/or copper metal, and binder compositions for use during the additive manufacturing methods, are generally described. In some instances, the methods of additive manufacturing include de-binding (and in some cases sintering steps) that afford metal-based composites, de-bound metal structures, and metal objects containing noble metals (e.g., silver, gold, platinum) and/or copper that have improved properties, such as relatively high densities. In certain aspects, combinations of certain metal powders (e.g., noble metal and/or copper powders) with certain binder compositions may result in improved properties of resulting metal objects produced by the additive manufacturing process, such as relatively low surface roughnesses. The binder compositions described may include a low molecular weight polymer (e.g., including an acrylic acid repeat unit) and, in some cases, a cross-linking agent.

Abstract: A powder bed material can include from 80 wt % to 100 wt % metal particles having a D50 particle size distribution value from 4 ?m to 150 ?m. From 10 wt % to 100 wt % of the metal particles can be surface-activated metal particles having in intact inner volume and an outer volume with structural defects. The structural defects can exhibit an average surface grain density of 50,000 to 5,000,000 per mm2.

Abstract: The invention relates to a method for the rapid manufacture of a three-dimensional workpiece from a molten material (1), in particular a molten metal, in which method the molten material (1) is supplied to a compression chamber (2) and delivered in drop form via an injector hole (4) by means of a pressure pulse which is generated with the aid of a reciprocating piston (3) that delimits the compression chamber (2). According to the invention, the compression chamber (2) is degassed before manufacturing begins and/or during a pause in the manufacturing. In a first step, ultrasonic waves are coupled into the molten material (1) in the compression chamber (2), which generate a force (FBjrk) that makes the gas in the molten material (1) sink, and in a second step, after the ultrasonic excitation has ended, the piston (3) is introduced deeper into the compression chamber (2) in order to remove the rising gas via a conduit (5) of the piston (3).

Abstract: Devices, systems, and methods for calibrating for an electron beam additive manufacturing system. The electron beam manufacturing system includes electron beam guns. A calibration system includes an optical pyrometer. The optical pyrometer captures thermal radiation emitted from raw material. An analysis component is communicatively coupled to the optical pyrometer. The analysis component is programmed to determine calibration parameters from information from the optical pyrometer and a phase transition temperature.

Abstract: A manufacturing process includes fusing an area of a material layer with beams from multiple sources, each of which has a predefined fuse rate and a field of view. Efficiency of fusing is increased by estimating optimum fusing times with the use of size of the area to and fuse rates involved, determining optimum size of the area to be fused, and determining those vectors of the area that could be irradiated and fused by a given of the multiple sources. As a result, the set of locations at the area is determined that can be fused by a given source almost exactly within the optimum fusing time. Vectors representing the area are then compared to products of optimum fusing times and corresponding fuse rates and, if a vector and a corresponding product are in a predetermined relationship, a subset of the vector is selected for irradiation by identified source.

Abstract: Build plate assemblies and their methods of use for an additive manufacturing system are disclosed. In some embodiments, a build plate assembly may include a build plate with a build surface and one or more recesses formed in the build plate. One or more inserts may be inserted into the corresponding one or more recesses of the build plate such that a portion of the one or more inserts are accessible through one or more corresponding openings formed in the build surface associated with the recesses.

Abstract: Disclosed is an apparatus and methods for sintering particulate to make a workpiece.

Abstract: The invention relates to a print head (1) for additively manufacturing three-dimensional workpieces, comprising a housing (3), a device (28) for feeding a metal (14), a piston (5), a reservoir (7) with an outlet opening (10) and an actuator device (12) for displacing the piston (5), wherein the reservoir (7, 27) has a melt region (20) and a displacement body chamber (21) for a liquid phase (8) of the metal (14), wherein the melt region (20) adjoins the inert atmosphere (22) and is connected to the displacement body chamber (21) such that, as a result of the displacement of the piston (5), the liquid phase (8) of the metal (14) can be stimulated to pass through the outlet opening (10), said outlet opening (10) being mounted on an insert (11) of the print head (1). The invention is characterised in that the print head (1) comprises a device (50) for feeding a protective gas (60) to the outlet opening (10) of the print head (1).

Abstract: The present invention provides silver nanoparticles that form a sintered body having a high shear strength and a low specific resistance when sintered at a low temperature (for example, 200° C. or less), even though the silver nanoparticles have an average particle diameter as large as 200 nm or more. Silver nanoparticles having an average particle diameter of 200 to 600 nm, wherein an exothermic peak due to binding of the silver nanoparticles in thermogravimetry-differential thermal analysis appears at less than 175° C., and a weight loss on heating from 30 to 500° C. by thermogravimetry-differential thermal analysis is 0.4% by weight or less.

Abstract: A simple method for making low surface area alloy particles with high silicon content has been discovered. The method involves two ball milling steps in which silicon containing precursor particles undergo a first milling to render the elemental silicon present to have an average grain size less than 20 nm, followed by a second milling with incorporated binding metal particles (e.g. certain transition metals) that serve to bind the first milled particles together. Done appropriately, the two milling step method results in alloy particles with high silicon content and have relatively low surface area and large particle size. As such, the particles are desirable for use in anode electrodes in rechargeable lithium batteries.

Abstract: A method for producing metal or metal alloy particles may include: mixing a mixture comprising: (a) a metal or a metal alloy, (b) a carrier fluid, and optionally (c) an emulsion stabilizer at a temperature at or greater than a melting point of the metal or the metal alloy to create a dispersion of molten droplets of the metal or the metal alloy dispersed in the carrier fluid; cooling the mixture to below the melting point of the metal or the metal alloy to form metal or metal alloy particles; and separating the metal or metal alloy particles from the carrier fluid, wherein the metal or metal alloy particles comprise the metal or the metal alloy and the emulsion stabilizer, if included.

Abstract: Provided is a coated cutting tool, which includes a hard coating film containing a layer (b) formed of a nitride or a carbonitride, a layer (c) which is a layered coating film formed by alternately layering a nitride or carbonitride layer (c1) that contains 55 atom % or more and 75 atom % or less of Al, Cr having a second highest content percentage, and at least Si and a nitride or carbonitride layer (c2) that contains 55 atom % or more and 75 atom % or less of Al and Ti having a second highest content, and a layer (d) that is a nitride or carbonitride that contains, with respect to a total amount of metal elements (including metalloid elements), 55 atom % or more and 75 atom % or less of Al and Ti having a second highest content percentage, the content percentage of Ti being 20 atom % or more.

Abstract: A diamond coated tool includes a base material and a diamond layer provided on the base material. The diamond layer has a boron content of 1×103 ppma or more and 1×106 ppma or less and an oxygen content of 1×102 ppma or more and 1×105 ppma or less in a first region surrounded by a surface of the diamond layer and a first imaginary plane located at a distance of 1 ?m from the surface in a thickness direction.

Abstract: A lathe capable of facilitating maintenance of a chucking mechanism. A chuck operating apparatus includes a claw and a shifter to open and close a chuck provided on a spindle. The tilt claw provided outside the spindle has a first posture to bring the chuck into the opened state and a second posture to bring the chuck into the closed state. The shifter provided outside the spindle and movable in a spindle axis direction is brought in a first position to bring the claw into the first posture and in a second position to bring the claw into the second posture. A roller is mounted on the shifter in a contact position with the claw to roll in the spindle axis direction.

Abstract: A rotary cutting tool includes a tool body including a shank portion and a cutting portion adjoining the shank portion. The cutting portion has a plurality of blades separated by helically twisted flutes. A tunable vibration absorber is disposed within an internal cavity formed in the cutting portion and has a shape that follows the helically twisted flutes. The tunable vibration absorber includes an absorber mass and a resilient material disposed between the absorber mass and an outer wall of the internal cavity. In one aspect, the tunable vibration absorber is tuned to a desired frequency by selecting the mechanical properties of the absorber mass and the resilient material. In another aspect, the tunable vibration absorber is tuned by controlling a pressure of fluid within a main internal fluid cavity disposed within the tunable vibration absorber.

Abstract: A cutting insert may include a first surface, a second surface and a lateral surface. The first surface may have a polygonal shape and may include a first corner, a second corner, a third corner, a first side and a second side. The lateral surface may include a first lateral surface and a second lateral surface. At least a part of the first lateral surface may be located between the first side and the second surface. At least a part of the second lateral surface may be located between the second side and the second surface. The first lateral surface may be located further outside than the first side in a front view of the first surface. The first lateral surface may include a first region located closer to the second lateral surface as coming closer to the second surface.

Abstract: A miter saw includes a base assembly and a saw unit pivotably coupled to the base assembly. The saw unit includes a saw blade and a lower blade guard covering a lower portion of the saw blade. The miter saw also includes a linkage for raising the lower blade guard to expose the lower portion of the saw blade as the saw unit is lowered toward the base assembly. The linkage is operable to apply a force to the lower blade guard for holding the lower blade guard in a raised position, without any input from the operator of the miter saw and without changing the length of the linkage, to facilitate changing the saw blade.

Abstract: A recip blade has a cutting edge defining a cutting direction and a repeating pattern of cutting teeth. Each repeating pattern includes (i) a leading tooth with respect to the cutting direction that includes a rake face defining a first rake angle that is negative, and (ii) a trailing tooth following the leading tooth with respect to the cutting direction that includes a rake face defining a second rake angle that is greater than the first rake angle.

Abstract: A work processing apparatus performs processing of a surface to be processed of a work by causing a processing head to come into sliding contact with the work held on an upper surface of a holding plate. The processing head includes a plasma electrode that generates plasma and radiates the plasma to the surface to be processed of the work. In the plasma electrode, an annular or solid cylindrical central electrode provided at a center in a radial direction and an annular outer circumferential electrode provided at an outer side in the radial direction with respect to the central electrode are arranged with an annular slit portion intermediating therebetween at a boundary position thereof, the slit portion is configured as a plasma generation space, and a processing pad is provided at bottom surfaces of the central electrode and the outer circumferential electrode.

Abstract: A method of fabricating of an object includes causing a first heat source to heat a feed material to form a melt pool of the feed material on a surface. The method further includes causing a second heat source to heat the melt pool on the surface to regulate grain formation of the feed material in the melt pool as the melt pool cools and solidifies on the surface to form at least a portion of the object. The method also includes causing the first heat source and the second heat source to move relative to the surface as the melt pool is formed and cooled.

Abstract: The invention relates to a device and method for increasing the speed and increasing the stability of the welding pin in friction stir welding with the following device features: a) a tool drive has a retaining flange for a cone-shaped tool cover with a union nut; b) an annular retaining ring surrounds a pin shank with a tool shoe secured to the diameter of the retaining ring, wherein the tool shoe has a smoothing and compressing surface in the region of the pin tip for smoothing the weld seam, wherein the pin shank has the width of the tool shoe; c) the pin tip has an annular friction surface which surrounds a screw conveyor for the output of material transport from the pin tip, which has a thread running in the opposite direction to the thread of the pin tip.

Abstract: A method, apparatus, and system are provided to monitor and characterize the dynamics of a phase change region (PCR) created during laser welding, specifically keyhole welding, and other material modification processes, using low-coherence interferometry. By directing a measurement beam to multiple locations within and overlapping with the PCR, the system, apparatus, and method are used to determine, in real time, spatial and temporal characteristics of the weld such as keyhole depth, length, width, shape and whether the keyhole is unstable, closes or collapses. This information is important in determining the quality and material properties of a completed finished weld. It can also be used with feedback to modify the material modification process in real time.

Abstract: A turbine housing assembly is disclosed, the assembly including a turbine housing defining a rotational axis for a turbine wheel. The assembly further includes a cartridge that is receivable by the turbine housing, the cartridge including spacer posts and a plate component that includes spacer post openings. The spacer posts may be laser beam welded into the spacer post openings to form laser beam welds as well as define an axial vane clearance between the plate component and a surface of the turbine housing. The turbine housing is further contacted by ends of the spacer posts. Each of the laser beam welds includes a power ramp-up area, an intermediate area and a power ramp-down area, where the power ramp-down area curves away from the power ramp-up area to reduce weld defects.

Abstract: A horn includes a plurality of protrusion formation parts, each of which has a plurality of protrusions that protrude from a welding surface and are arranged in a line in at least one row, the plurality of protrusion formation parts respectively configured to form pattern formation parts on an outermost electrode tab of electrode tabs of a secondary battery, and a protrusion-free part which is disposed between two protrusion formation parts of the plurality of protrusion formation parts and in which protrusions are not provided to expose the welding surface to an outside, the protrusion-free part configured to form a pattern-free part on the outermost electrode tab. The protrusion-free part has a width greater than a width of each of the protrusions.

Abstract: A joining method includes: an overlapping step of overlapping a front surface of a first metal member with a back surface of a second metal member; and a welding step of welding the first metal member with the second metal member by hybrid welding, with use of a hybrid welding machine including a leading laser welding unit and a trailing arc welding unit. In the welding step, laser welding, by irradiating a laser beam, and arc welding are performed, along a preset travel route set on an inner corner portion formed by the front surface of the first metal member and an end surface of the second metal member, to the inner corner portion and the laser beam is oscillated to cross the preset travel route.

Abstract: This laser processing device is provided with a laser radiating unit which forms a processed groove extending in a scanning direction on a workpiece, by subjecting the workpiece to laser processing while scanning the surface of the workpiece, and a nozzle portion which has a plurality of ejection holes arranged side by side in the scanning direction, and which ejects a gas toward the processed groove from each of the ejection holes. With this laser processing device, since a plume is eliminated by ejecting gas into the processed groove by means of the nozzle portion, the formation of a heat affected layer by the plume can be suppressed to an even greater extent.

Abstract: A soldering iron head includes a bottom surface, a first side surface, a second side surface opposite to the first side surface, and a positioning slot formed on the bottom surface and extending between the first side surface and the second side surface. The positioning slot is adapted to accommodate and position an exposed end conductor of a cable. The cross section of the positioning slot is trapezoidal in shape, absent a lower bottom. An upper bottom facing side of the trapezoidal cross section of the positioning slot gradually increases in width from the first side surface to the second side surface.

Abstract: A joined structure includes: a first member; and a second member that faces the first member and that is joined to the first member via a joining layer. The joining layer includes a metal material and a solder material, apart of the metal material has at least one pore, and the solder material is located in a part of an internal area of the at least one pore. Also disclosed is a joining method that makes it possible to produce the joined structure. Further disclosed is a joining material used in the joining method. The joining method makes it possible to achieve non-pressurization sintering processes while maintaining high precise thickness of a joining layer between the first layer and the second layer based on the spacer.

Abstract: A high-strength welding wire includes, in weight percentage, 5.8% Cu, 0.2% Mn, 0.1% V, 0.2% Zr, 0.2% Si, 0.3% Fe, 0.1% Zn, 1.4% compensation element, 0.2% hydrogen evolution element, 1.2% nanoceramic particle, and Al for the balance. Various powdered raw materials are mixed, wrapped with an aluminum strip, rolled and subjected to wiredrawing to form the high-strength welding wire. In a welding method for the high-strength welding wire, a K-shaped groove is formed between a stringer and a panel, and an inclined angle of the welding gun and a distance between the welding gun and the weld are adjusted. Then the angle between the wire-feeding tube and the welding gun and the striking mechanism and the weld are adjusted. Protective gas is supplied to the welding pool, and a laser is activated to perform welding. A striking mechanism is started to strike the weld.

Abstract: A method of ultrasonic additive manufacturing comprising using ultrasonic additive manufacturing to build a solid metal object through ultrasonically welding successive layers of thin metal foil into a three-dimensional shape; machining internal features into the solid metal object, wherein the internal features include voids, chambers, cavities, channels, or conduits; depositing a sacrificial support material in the internal features, wherein the sacrificial support material includes at least one water-soluble solid, and at least one water-soluble binding agent; curing the sacrificial support material at a predetermined temperature for a predetermined period of time within the internal features; using ultrasonic additive manufacturing to deposit additional successive layers of metal on top of the sacrificial material and solid metal object to complete the solid metal object; and introducing a solution containing water into the internal features to dissolve and remove the sacrificial support material therefro

Abstract: An internal clamping and welding device for joining tubes by their distal ends, the device comprising movement means in order to be moved inside the tubes, separate clamping means for cooperating with the inner surfaces of the tubes to be welded, and a welding head mounted so as to be able to both rotate about a longitudinal axis of the tubes, and also pivot in order to be tiltable relative to a support of the clamping means.

Abstract: A jig device for laser welding of the disclosure includes a jig body having a semi-oval shaped seating groove in which a lower side of a refrigerant pipe to which a charging port is coupled is seated; a first pressing block provided in an upper portion of one side of the jig body and having a first groove part configured to press an upper portion of one side of the refrigerant pipe and an upper portion of one side of a fixing part of the charging port at a lower surface thereof; and a second pressing block provided at an upper portion of the other side of the jig body and having a second groove part configured to press an upper portion of the other side of the refrigerant pipe and an upper portion of the other side of the fixing part of the charging port at a lower surface thereof.

Abstract: A welding electrode apparatus may be mounted to a robot that presents it to a workpiece along a pre-programmed path conforming to the surface of the workpiece. The welding electrode apparatus has a first drive for rotating the welding electrode about its own axis. The electrode handle has a second rotating drive having an imbalance to impose vibration on the welding rod transverse to the axis of the rod. The first drive may turn relatively slowly; the second drive may turn more quickly. The first drive has an electrical pickup by which to carry DC power to the electrode. The two rotating drives impose two frequencies of vibration into the apparatus, causing a make-and-break contact for low power spark deposition, while at the same time causing the electrode to bounce and impact the surface. The forward end of the apparatus may include a cowling and a delivery line to provide shielding gas to the electrode.

Abstract: A method of providing an inert atmosphere to the inside of a piping assembly prior to and during welding, including introducing a canister, and a deflated bladder which surrounds the canister, into a piping assembly to be welded. Introducing purge gas, thereby inflating the deflated bladder and sealing the canister against the inside of the piping assembly to be welded. Introducing excess purge gas from the bladder into a primary purge gas diffuser, thereby producing a first diffused purge gas stream. Introducing the first diffused purge gas stream into a secondary purge gas diffuser, thereby producing a secondary diffused purge gas stream. Introducing the secondary diffused purge gas stream into a tertiary purge gas diffuser, thereby producing a third purge gas stream. And introducing the third purge gas stream into the inside of the piping assembly to be welded.

Abstract: A tool head assembly for crimping, the assembly including an internal cam that spins freely on a stationary shaft in one direction and locks onto the shaft in the other direction. That cam rotates against the moving slide forcing to move away from the stationary shaft opening a gap between rollers. A controller is programmed to have the drive rotate in one direction for a set time period, then reverse the rotation to begin the crimp process. The start rotation of the drive rotates the cam and opens the roller gap. The forward rotation allows the cam to swing, closing the gap and rotating the rollers around a seal. The tool eliminates the air cylinder and related pneumatic hoses and valve making the head smaller and allows a controller to communicate with any OEM production system to verify the tool has been used and was used correctly.

Abstract: The disclosure relates to a dust suction device for a hand-held power tool, comprising a housing, a fan unit accommodated in the housing for generating an air volume flow, at least one suction opening for suctioning off drill cuttings from a borehole, and at least one suction intake opening for generating a negative pressure in an adhesion region between the dust suction device and a workpiece on the basis of the air volume flow.

Abstract: An assembly for controlling waste material during a hybrid subtractive and additive manufacturing process is disclosed, including a machining tool held in a holder, a shroud disposed around the machining tool, and one or more ports configured to create a negative pressure within the shroud. A method of constraining waste material during a hybrid subtractive and additive manufacturing process of a part includes adding an amount of material to a part being additively manufactured, transforming the amount of material that was added, manipulating a tool to machine a portion of the part being additively manufactured and generating a waste material, sealing a portion of the tool and covering a portion of the part with a shroud, and applying a negative pressure to create an airflow to prevent the waste material from exiting the shroud.

Abstract: The present disclosure relates to a machine tool cable protection device including a universal head having a rotary part and rotatably and tiltably installed in a ram body, a cable having one side connected to a rotary part of the universal head, and the other side connected to a supply source, a rotation unit disposed on the rotary part of the universal head and configured to wind or unwind the cable while rotating in conjunction with a rotation direction and a rotation angle of the rotary part of the universal head, and a movement unit disposed in the ram body so as to rectilinearly reciprocate to compensate for a change in length of the cable that is wound around or unwound from the rotation unit in accordance with a rotation direction and a rotation angle of the rotation unit.

Abstract: A measuring sleeve for measuring a tool, a tool presetting device, a method for measuring a tool by means of a tool presetting device and to a method for mounting a tool in a tool holder. The measuring sleeve for measuring a tool provides a base body, particularly in the form of a sleeve, with a recess which runs starting from a first end side of the measuring sleeve in the axial direction of the measuring sleeve and has cross sections, in particular circular cross sections, decreasing in steps for receiving a tool to be measured.

Abstract: Exemplary accessories for use with woodworking supports of woodworking devices may include a first number of locks actuatable by a second number of actuators, the second number being less than the first number. An exemplary actuator is a cam type actuator.

Abstract: Systems remotely polish and compress surfaces for working, including surfaces created through electrical discharge machining. A bridge may secure about the surface and carry a spindle that rotatably extends downward and carries a polishing assembly. The polishing assembly can push against the surface while polishing the same with larger amounts of force. The polisher can be moved about a perimeter of the surface and vertically. Systems may be remotely operated with a pneumatic slide, hydraulic motor, and/or stepper motor. Spotfaces formed from electrical discharge machining, including those in nuclear facilities and deep underwater, may have recast layers removed with such systems without manual or direct operator interface.

Abstract: A polishing pad for a chemical mechanical polishing apparatus includes a polishing layer having a polishing surface and a backing layer formed of a fluid-permeable material. The backing layer includes a lower surface configured to be secured to a platen and an upper surface secured to the polishing layer, wherein the lower surface and upper surface are sealed. A first seal circumferentially seals an edge of the backing layer, and a second seal seals and separates the backing layer into a first region and a second region surrounded by the first region.

Abstract: During chemical mechanical polishing of a substrate, a signal value that depends on a thickness of a layer in a measurement spot on a substrate undergoing polishing is determined by a first in-situ monitoring system. An image of at least the measurement spot of the substrate is generated by a second in-situ imaging system. Machine vision processing, e.g., a convolutional neural network, is used to determine a characterizing value for the measurement spot based on the image. Then a measurement value is calculated based on both the characterizing value and the signal value.

Abstract: A method is provided and includes making a polishing table and a dummy disk rotate; bringing the dummy disk into contact with a table surface of the polishing table while a liquid is supplied to the table surface; measuring heights of the table surface at a plurality of measurement points while the dummy disk is moved on the table surface; and creating a table profile showing tilt of the table surface from measurement values of the heights of the table surface.

Abstract: A method of manufacturing a window may include cutting a window having a uniform thickness of about 20 ?m to about 100 ?m and polishing a cut surface of the window with a polishing pad having an elastic modulus less than an elastic modulus of the window while applying slurry to the cut surface of the window.

Abstract: Provided is a support device that supports an object to be supported, in a manner that allows the object to rotate, without rotation of the support device itself. The support device is provided with: a base part; pair of support members that are slidably provided with respect to the base part, and have arc-shaped cut-out portions which sandwich and hold a circumferential surface of an object to be supported, from both sides of the object; a plurality of first biasing members that bias the pair of support members in a direction toward each other; a plurality of bearing parts that are provided along the cut-out portions, and are for sandwiching and holding the object to be supported, in a manner that allows the object to rotate; and a plurality of second biasing members that bias the plurality of bearing parts in a direction toward the object to be supported. The plurality of first biasing members bias the pair of support members.

Abstract: An adjustable wrench includes a wrench body, a second jaw and an adjustment mechanism, the wrench body including a first jaw, a neck and a handle, wherein the first jaw is a front end of the wrench body, and the neck is located between the first jaw and the handle. The first jaw is disposed opposite the second jaw to form a holding space for holding an object. The neck is provided with a through hole, the adjustment mechanism is disposed in the through hole, and the second jaw is movably connected to the neck of the wrench body by the adjustment mechanism. The adjustment mechanism is used to adjust the movement of the second jaw relative to the first jaw. The adjustable wrench therefore includes a jaw that can move relatively fast and can also be effectively prevented from skidding or returning.

Abstract: The ratchet mechanism comprises a head portion with a circular central housing, the inner surface adjoining the handle portion having a further recess characterized by a plurality of engagement ramp profiles arranged not unlike low angled gear teeth within the recess arc. A pawl is located within the recess, with a corresponding plurality of engagement ramp profiles abutting the recess engagement ramp profiles and incorporating an inner facing toothed face of similar corresponding pitch and profiles as the drive element teeth in order that they can mechanically mesh into one another when ratchet is operated in the drive direction, the pawl inward force being substantially evenly distributed along the pawl toothed front face by the use of several similar engagement ramp profiles urging all the pawl teeth into the required locking engagement with the drive element simultaneously.

Abstract: A power tool includes a housing with a motor housing portion and a handle portion extending from the motor housing portion, a motor supported within the motor housing portion, a drive assembly operatively coupled to the motor, the drive assembly producing vibrations during operation of the power tool, a battery receptacle located within the handle portion, a battery at least partially insertable into the battery receptacle along a battery axis, the battery configured to provide power to the motor, and a vibration mitigation system configured to reduce transmission of the vibrations produced by the drive assembly to the battery.