Abstract: An objective of the invention to provide an alloy article that exhibits even better mechanical properties and/or even higher corrosion resistance than conventional high entropy articles without sacrificing the attractive properties thereof, a product formed of the alloy article, and a fluid machine having the product. An alloy article according to the invention has a predetermined chemical composition comprising: Co, Cr, Fe, Ni and Ti, each within a range of 5 atomic % or more and 35 atomic % or less; Mo within a range of more than 0 atomic % and less than 8 atomic %; an element with a larger atomic radius than the atomic radiuses of Co, Cr, Fe and Ni within a range of more than 0 atomic % and 4 atomic % or less; and a balance of inevitable impurities.

Abstract: A radiation beam field shaping device is made from a 3D printed frame that contains and gives shape to a granular material with bulk density of at least 3 g/cm3 and composed of metal grains having a size between 1 ?m and 4 mm. The frame has a hole in the bottom with surrounding walls that defines the desired beam shape. In one implementation, the metal grains are composed of solid tungsten alloy ball bearings and/or tungsten alloy powder.

Abstract: A method includes assembling a setter assembly onto a binder-jet printed part, wherein the setter assembly includes a base, a top setter, a bottom setter positioned between the base and the top setter, and a support pin extending between the base and the top setter having a terminus that abuts an inward facing surface of the top setter, such that at least portion of the binder-jet printed part is nested between the top setter and the bottom setter. The method includes heating the binder-jet printed part and the setter assembly to debind or sinter the binder-jet printed part, wherein a length of the support pin decreases in response to the heating to move the top setter toward the base.

Abstract: A build plate may include one or more thermocouples placed on an underside of the build plate. The one or more thermocouples output temperature fluctuation to assist in monitoring for build plate separation of a product located on top of the build plate.

Abstract: Methods, architectures, mechanisms and/or apparatus configured to manufacture a component (and components manufactured thereby) by optimizing a location of an internal feature of the component to be manufactured using powder fusion additive manufacturing (PFAM) based on an energy release rate being proportional to the third derivative of a component shape function and the shape function itself; the internal feature comprising one or more cavities having unfused powder disposed therein to provide vibration dampening.

Abstract: A method for building structures on existing components includes preparing an auxiliary plate suitable for fastening on the working plate, wherein the auxiliary plate has at least one reference marking, fastening the component on the auxiliary plate, optionally processing the at least one surface to be processed for providing a surface that is substantially parallel to the working plane of the device, measuring the at least one reference marking and the component, wherein the position is recorded, introducing the auxiliary plate with the at least one reference marking and the component into the device and detachably fastening the auxiliary plate on the working plate and processing the component in the device for additive manufacturing by working data on the basis of measuring data. A device and a composite structure for additive manufacturing is used in the method.

Abstract: Provided is a powder for forming a three-dimensional object, the powder including: a core material; and a sintering additive, wherein the sintering additive is in a state of being at least partially embedded in the core material.

Abstract: A nozzle arrangement for applying fluids to a substrate has a main body which is able to be connected to a mounting region of a distributor and which has an end-side side surface. At least one first outlet nozzle for the fluid to be applied to the substrate is provided in or on the end-side side surface of the main body. A first fluid channel system is formed in the main body, via which the at least one first outlet nozzle is connected in terms of flow to a first fluid connector, which is provided in the main body of the nozzle arrangement. The nozzle arrangement is a monolithic component produced by an additive production method.

Abstract: A delivery system for delivering a plurality of layers of a powder to a three dimensional (3D) printing system for printing at least one 3D object, the delivery system comprising: a rotatable drum having a rounded photosensitive outer surface, a hopper unit comprising a container for storing the powder, wherein the hopper unit is configured to dispense the powder on the photosensitive outer surface of the rotatable drum. The delivery system further comprises a delivery unit comprising a movable delivery plate having a conductive outer surface, an engine for moving the delivery plate to a working chamber of the 3D printing system, one or more charging electrodes configured to charge the rotatable drum, a charging unit configured to charge the delivery plate.

Abstract: A method for manufacturing a metallic component including the steps of providing a capsule, which defines at least a portion of the shape of the metallic component, arranging metallic material in the capsule, sealing the capsule, subjecting the capsule to Hot Isostatic Pressing for a predetermined time, at a predetermined pressure and at a predetermined temperature, and optionally, removing the capsule. The metallic material is at least one pre-manufactured coherent body, which pre-manufactured coherent body being made of metallic powder, wherein at least a portion of the metallic powder is consolidated such that the metallic powder is held together into a pre-manufactured coherent body. At least one portion of the pre-manufactured coherent body is manufactured by Additive Manufacturing by subsequently arranging superimposed layers of metallic powder.

Abstract: Provided is a lathe capable of elongating the life of a shifter mechanism. A lathe comprises a spindle, a chucking unit, a power transmitting unit, a shifter, a claw, and a driving unit. The shape of an outer circumference of the shifter in a contact range and a first end of the claw in longitudinal section along the spindle axis is such shape as the acceleration “a” of the first end in the diameter direction with respect to the moving distance of the shifter moving in the direction of the spindle axis (Z-axis direction) at a constant speed is continuous both in a positive range and in a negative range where the contact range is a range of the outer circumference of the shifter in contact with the first end of the claw.

Abstract: The invention relates to a cutting tool comprising a main part that can be rotationally driven about a rotational axis, at least one cutting insert holder mounted on the main part such that it can be radially adjusted, and an adjusting device for adjusting the position of the cutting insert holder relative to the main part. The cutting insert holder is mounted in a guide recess in the main part such that it can be moved transversely, preferably radially, to the rotational axis, and the adjusting device has a control rod that is arranged axially movable inside the main part and supports the cutting insert holder. The cutting tool can be of the multi-point cutting tool type. The invention also relates to a method for machining a bearing tunnel by means of such a multi-point cutting tool.

Abstract: An accessory for coupling to an oscillating power tool includes a working end portion and an attachment portion. The working end portion defines and extends along a working axis. The attachment portion is coupled to the working end portion and includes a top wall, a bottom wall spaced apart from the top wall, and a peripheral wall extending from the top wall to the bottom wall at least partially around the top wall to form at least a portion of a polygonal shape. A generally U-shaped opening is defined in the top wall, extends along an attachment axis at an angle to the working axis, has a central portion at a center of the attachment portion, and is open to a gap in the peripheral wall. A plurality of radial openings is defined in the top wall and arranged between the U-shaped opening and the peripheral wall.

Abstract: A heater for shrink fit chucks has a heating cover, a blocking piece, and an adjustable blocking set. The heating cover has a first through hole, a second through hole, and a heating space disposed within the heating cover, extending along an extending direction to form the first through hole and the second through hole, and communicating with a heat gun. The blocking piece is detachably connected to the heating cover to block the first through hole and has a communicating hole capable of communicating with the first through hole. The adjustable blocking set is connected to the heating cover and has two blade assemblies and a switching component. Each blade assembly has blades disposed annular along the extending direction. The switching component is rotatable and capable of pushing the blades to move toward or depart from each other for blocking the second through hole.

Abstract: The present disclosure is directed to a novel hole saw assembly for use with a removable guide or pilot drill bit in which either or both of a cutting device on the hole saw and/or the tip of the removable pilot drill comprise a hard material, such as diamond or tungsten carbide, or another hard material. The novel hole saw assembly is configured to improve the function of keeping the cutting edge of the cutting device properly located during the hole saw cutting or drilling process, especially when cutting or drilling a hole in materials with surfaces that are hard or slippery, such as stone, glass, certain metals or porcelain, or ceramic floor, ceiling or wall tile.

Abstract: A rotatable tool for producing a circular groove through metal cutting in a metal work piece and a method of forming the circular groove with the rotatable tool is disclosed. The rotatable tool includes a front end and a second end. The front end includes a first radially outer cutting edge and a second radially inner cutting edge, where the first radially outer cutting edge is located at a larger radial distance from the tool center axis than any other cutting edge of the rotatable tool, and where the second radially inner cutting edge is located at a smaller radial distance from the tool center axis than any other cutting edge of the rotatable tool.

Abstract: A rotary tool may include a main body having a circular columnar body, including a rotation axis and extending from a first end to a second end. The main body may include first flutes, second flutes, a first cutting edge, and a second cutting edge. The first flutes may have a helix angle ?1 and the second flutes a reverse helix angle ?2. The first cutting edge may be located on a ridge line where the outer periphery of the main body intersects with the first flutes and the second cutting edge at a ridge line where the outer periphery of the main body intersects with the second flutes. The ?2 may be larger than the ?1, m?5, m?n?3, and m and n are coprime numbers, where m is the number of the first flutes and n is the number of the second flutes.

Abstract: The rotary cutting tool of the invention has helicoidal peripheral cutting edges with a wavy profile.

Abstract: A method is for cutting a tubular structure, such as a drill string, at a drill floor of a drilling rig. The method includes the following steps: i) providing a cutting tool at the drill floor comprising a non-rotatable cutting element configured for carrying out a translational cutting movement through the tubular structure; ii) positioning the cutting tool in cutting position exterior to the tubular structure; iii) fixing the position of the cutting tool with respect to the tubular structure, and iv) activating the cutting tool for cutting the tubular structure by using a translation movement of the at least one cutting element through the tubular structure. A cutting tool is for use in such method.

Abstract: A pipe cutting device includes first and second C-shaped half-bodies, a cutter disposed between the first and second C-shaped half-bodies, two wheels, an automatic cutter feeding mechanism, and arc-shaped plate adjustment screws. The automatic cutter feeding mechanism moves the cutter to perform automatic feeding operation and is in cooperation with the two wheels to cut a pipe. The first and second C-shaped half-bodies include a first screw hole and a second screw hole respectively, the arc-shaped plate adjustment screws are locked into the first screw hole and the second screw hole respectively, to adjust a moving path, toward between the two wheels, of the cutter pushed by the automatic cutter feeding mechanism. Therefore, the pipe cutting device can adjust the moving path of the cutter, fine tuning to cut the pipe, and adjusting a pressing force of the cutter.

Abstract: A track saw system is configured to make a straight cut in a work piece supported upon a stand. The track saw system includes a base configured for attachment to the stand, the base having an edge against which the work piece is engageable, a track pivotably coupled to the base, a first hinge pivotably coupling the track to the base about a first pivot axis to permit pivoting movement of the track relative to the base in a direction extending away from the base, and a second hinge pivotably coupling the track to the base about a second pivot axis transverse to the first pivot axis to permit pivoting movement of the track relative to the base to adjust a miter angle between the track and the edge.

Abstract: A sample preparation saw has a base, a housing, a saw assembly mounted to the base, a dressing assembly, a sample clamping assembly mounted to the base, and a reservoir assembly. The saw assembly includes a blade assembly with a rotating blade. The blade assembly is movable along x-, y- and z-axes by at least two drives. The dressing assembly is operable to dress the rotating blade. The sample clamping assembly includes a rail, a sample mount removably positioned on the rail and a saddle operable to hold a sample. The reservoir assembly is operable to recirculate a rinse fluid sprayed on the rotating blade, and includes a basin having a pump and a series of weirs.

Abstract: A reciprocating saw blade includes a body formed from a piece of coil stock. The body has a shank end configured to secure the blade with a reciprocating saw, a plunging end configured to enter a workpiece, and a cutting edge and opposite back edge extending between the shank end and the plunging end. The cutting edge has a plurality of teeth arranged in a pattern that includes left and right set teeth. A plurality of gullets is disposed between adjacent teeth. Each of the teeth and the gullets has substantially the same size, except that the first and third consecutive teeth immediately adjacent the plunging end have been flattened to be unset, and at least a portion of the second consecutive tooth has been removed to form an enlarged gullet between the first and third teeth.

Abstract: A wire electrical discharge machine includes: a drive control unit for moving a wire electrode relative to a workpiece along a machining path; a path determination unit for determining whether or not the machining path includes a linear path section that crosses a boundary line between a thick portion and a thin portion of the workpiece; and a path compensator for compensating the machining path so as to form, in the thin portion, a protrusion projecting outward from the boundary line when the path determination unit determines that the linear path section is included.

Abstract: A wire electrical discharge machine performs electrical discharge machining on a workpiece by applying voltage across an electrode gap formed between a wire electrode and the workpiece to thereby generate electrical discharge while moving the wire electrode relative to the workpiece along a path specified by a machining program. The wire electrical discharge machine includes: a voltage detector for detecting a gap voltage across the gap; a facing area calculation unit for calculating, as a facing area, the area of a surface of the workpiece contained within a predetermined distance from the center axis of the wire electrode; an axis feed rate determination unit for determining an axis feed rate based on the gap voltage value detected by the voltage detector, and the facing area; and a movement control unit for performing control so that the wire electrode moves relative to the workpiece at the axis feed rate.

Abstract: Provided are a jet solder level confirmation jig and a method of handling the same, which allow the level of the jet wave of the molten solder to be accurately confirmed. A jet solder level confirmation jig is provided with a level confirmation unit for confirming a level of a jet wave of molten solder, a holding unit that holds the level confirmation unit, a notifying unit that notifies the level of the jet wave of the molten solder; and a bridge member having a length so as to be able to form a bridge in an upper part of a jet solder bath housed within a housing, the bridge member supporting the level confirmation unit in the upper part of the jet solder bath. The notifying unit is connected to a power supply unit of a jet soldering device.

Abstract: A system for manufacturing boiler tubes includes a first spindle for receiving a first tube having a first weld preparation, a second spindle for receiving a second tube having a second weld preparation, the first spindle and the second spindle being rotatable synchronously, and a welding device having a first weld head. The welding device is configured to automatically weld the first tube to the second tube according to a control routine stored in memory to produce a boiler tube.

Abstract: Apparatuses and methods for repairing a defect in a nuclear reactor are provided. The apparatus includes a body for insertion in a tubular structure, the body includes: an end effector having a weld torch operable to deposit weld material by forming molten weld droplets and depositing the weld droplets the tubular structure. A drive unit includes a brace for selectively anchoring against said tubular structure; at least one linear actuator for moving the apparatus relative to the brace; and a rotational actuator coupled to rotate the weld torch. The method includes inserting a repair apparatus into tubular structure of the nuclear reactor; moving the repair apparatus to a defect location; depositing a protective weld layer over the defect by sequentially depositing weld droplets atop a weld pool on the tubular structure, wherein the protective weld layer bonds to the tubular structure surrounding the defect.

Abstract: A resistance welding control system includes a pair of electrodes, a driving mechanism, and a control device. The control device includes a detector, a determining unit, and a stop controller. The detector is configured to detect a position of a first electrode of the pair of electrodes and a distance from the first electrode to a second electrode of the pair of electrodes in the approaching-separating direction while electricity is being passed between the first and second electrodes. The determining unit is configured to make a determination as to whether predetermined variation has occurred in the position or the distance. The predetermined variation indicates that a temperature of the member to be welded is at a feature point temperature. The stop controller is configured to stop the electricity passed between the first and second electrodes on the basis of a result of the determination.

Abstract: An electromagnetic pulse welding coil includes a first conductive region and a second conductive region. The second conductive region is assigned to a remainder of the coil and has a low current density. The first conductive region is configured for generating a higher current density than the second conductive region. The first conductive region is detachably connected to the remainder of the coil using a detachable connection. The electromagnetic pulse welding coils is planar in design and is cut out of a metal plate.

Abstract: An ultrasonic welding system is provided. The ultrasonic welding system includes a support structure for supporting a workpiece. The ultrasonic welding system also includes a weld head assembly including an ultrasonic converter carrying a sonotrode. The weld head assembly is moveable along a plurality of substantially horizontal axes. The sonotrode is configured to operate during a welding operation at a bond force of between 5-500 kg, and with a sonotrode tip motion amplitude of between 5-150 microns.

Abstract: The present invention provides an overlapping bonded structure in which breaking of a bonded section at holes formed during bonding can be prevented when an overlapping section formed by overlapping a plurality of meal plate members is bonded by means of a mechanical bonding means or a friction stir spot-welding means.

Abstract: The present invention relates to a joined component formed by friction stir welding and, more particularly, to a joined component formed in a structure in which no interface exists between flow paths formed therein.

Abstract: A laser machine includes a laser oscillator that generates a laser beam that irradiates a first region on a workpiece and a laser beam that irradiates a second region around the first region on the workpiece and a controller that changes an output of the laser beam that irradiates the first region and an output of the laser beam that irradiates the second region on the basis of a thickness of the workpiece so that the respective outputs vary between a period in which a piercing hole is formed in the workpiece and a period in which the workpiece is cut.

Abstract: A method provides for producing modifications in or on a transparent workpiece using a laser processing device. The laser processing device has a short pulse or ultrashort pulse laser that emits laser radiation having a wavelength in the transparency range of the workpiece and which has a beam-shaping optical unit for beam shaping for focusing the laser radiation. The transparent workpiece is composed of a material that has a plurality of phases, of which at least two phases have different dielectric constants, of which in turn the one phase is a phase embedded in the form of particles, which phase is substantially surrounded by the other phase, and wherein the product of the volume of the particles specified in cubic nanometers and the ratio of the absolute value of the difference of the two different dielectric constants to the dielectric constant of the surrounding phase is greater than 500.

Abstract: Firstly, an upper base material is disposed above a lower base material. Secondly, a laser beam is irradiated so that an area irradiated with a laser beam at a time of melting start is formed on only an upper surface of the upper base material or on only both the upper surface and an end surface of the upper base material, whereby the end surface of the upper base material and the lower base material are fillet welded. With the end surface as a reference, a side the upper surface and the lower surface are positioned is a first side, and an opposite side of the first side is a second side. The laser beam is set such that an intensity of the laser beam is lower toward the second side from the first peak area within the irradiation area of the laser beam.

Abstract: This disclosure describes various methods and apparatus for characterizing an additive manufacturing process. A method for characterizing the additive manufacturing process can include generating scans of an energy source across a build plane; measuring an amount of energy radiated from the build plane during each of the scans using an optical sensing system that monitors two discrete wavelengths associated with a blackbody radiation curve of the layer of powder; determining temperature variations for an area of the build plane traversed by the scans based upon a ratio of sensor readings taken at the two discrete wavelengths; determining that the temperature variations are outside a threshold range of values; and thereafter, adjusting subsequent scans of the energy source across or proximate the area of the build plane.

Abstract: A laser diode driving power source of a laser machining device that radiates laser light emitted from an LD to a workpiece to machine the workpiece includes a power converter including a switching device, to supply a current to the LD, and a control unit to control a switching operation of the switching device. A value smaller than a value that is n times a time constant for laser machining is set as a switching period of the switching device in the control unit, the n is larger than 1, and the time constant for laser machining is a value obtained by dividing a surface roughness required for machining of the workpiece by a moving velocity of the workpiece.

Abstract: A laser processing method of performing laser processing on a transparent material that is transparent to ultraviolet light includes: A. a positioning step of performing positioning so that a transfer position of a transfer image is set at a position inside the transparent material at a predetermined depth ?Zsf from a surface of the transparent material in an optical axis direction; B. an irradiation condition acquisition step; C. a determination step of determining whether a maximum fluence of a pulse laser beam at the surface of the transparent material is within a predetermined range based on irradiation conditions; and D. a control step of allowing irradiation with the pulse laser beam when the maximum fluence is determined to be in the predetermined range.

Abstract: A laser processing method includes a first step of emitting measurement laser light of a first wavelength from the reference surface side to a reference object having a reference surface of which reflectance for the first wavelength is known to obtain a reference light amount as a reflected light amount of the measurement laser light on the reference surface, a second step of emitting the measurement laser light from the first surface side to the object to be processed to obtain a first light amount as a reflected light amount of the measurement laser light on the first surface, and a third step of, after the first step and the second step, calculating a reflectance of the first surface for the first wavelength based on a reflectance of the reference object, the reference light amount, and the first light amount.

Abstract: A welding structure includes, in a cross-section of the first member and the second member when they are seen from an axial direction of the insertion hole, a plurality of welding spots, an outer periphery of the welding spots are each formed with a curve-shaped portion and two side-face portions. When two intersections where the outer side-face portion on the outer periphery of the both-end welding spots and the outer periphery of the second member intersect are defined as a first intersection and a second intersection, a weld angle formed by a first linear line linking the first intersection with a sectional center of the second member and a second linear line linking the second intersection with the sectional center of the second member is set to a first predetermined angle or more.

Abstract: Method of manufacturing first structural component for or joining with second structural component by groove weld is provided. The first structural component has first surface, second surface and end portion. The component is bent at end portion to form bent portion defining convex and concave faces. First portion of bent portion is removed at convex face in form outer weld surface having first face extending from first surface, and second face connected to first face. Second portion of bent portion is removed at concave face to form inner edge surface having arcuate profile. Inner edge surface extends from second surface and connects to second face via transition portion. A portion of first face, second face, transition portion, and inner edge surface define root protrusion, having a root protrusion height, for first structural component. The root protrusion defines stress protected weld root region isolated beyond and away from root stress flow path.

Abstract: To provide a sheet for sintering bonding and the same with a base material suited for lamination and integration and also suited for realizing satisfactory operational efficiency in a sintering process in a process of producing semiconductor devices that go through sintering bonding of semiconductor chips. A sheet for sintering bonding 10 of the present invention comprises an electrically conductive metal containing sinterable particle and a binder component. In this sheet, the minimum load, reached during an unloading process in load-displacement measurement according to a nanoindentation method, is ?100 to ?30 ?N. Alternatively, the ratio of the minimum load to a maximum load, reached during a load applying process in the above measurement, is ?0.2 to ?0.06. A sheet body X, a sheet for sintering bonding with a base material of the present invention, has a laminated structure comprising a base material B and the sheet 10.

Abstract: A welding filler material includes (in wt.-%): C 0.01-0.05%; N 0.05-0.10%; Cr 20.0-23.0%; Mn 0.25-0.50%; Si 0.04-0.10%; Mo 8.0-10.5%; Ti 0.75-1.0%; Nb 3.0-5.0%; Fe max. 1.5%; Al 0.03-0.50%; W 4.0-5.0%.; Ta max. 0.5 %; Co max. 1.0%; Zr 0.10-0.70% Ni remainder; and impurities resulting from the smelting process.

Abstract: Disclosed is an automatic pressing jig apparatus including a plurality of pressing units configured to simultaneously press a plurality of bus bars provided in the battery module, the plurality of pressing units pressing an end portion of a lead assembly from an upper portion of the bus bar so that the lead assembly does not protrude through a lead slit of a bus bar among the plurality of bus bars; a support plate connected to one end portion of the plurality of pressing units to support the plurality of pressing units; and a distance adjusting unit connected to the support plate to move the support plate so that the plurality of pressing units are moved away from or closer to the battery module.

Abstract: A method of manufacturing a shim and related systems and equipment. A mechanical tool inserted into a shim space defined between two or more components with the mechanical tool in a first configuration. The mechanical tool is free of measurement electronics. The mechanical tool, while in the shim space, is modified such that the mechanical tool assumes a second configuration to establish a plurality of model points corresponding to a boundary surface of the shim space. The mechanical tool is removed from the shim space while maintaining the mechanical tool in the second configuration. Using a measurement station distinct from the tool, the positions of the model points are electronically measured while the mechanical tool is both disposed outside of the shim space and in the second configuration. Machining instructions are generated based on the measured positions. A shim is fabricated based on the generated machining instructions.

Abstract: Workpiece-holding tools and techniques are described. Workpiece-holding tools and techniques are usable to ensure consistent and durable alignment of various workpieces while providing access for performing attachment techniques thereon. In one example, the workpiece-holding tool is configured to allow objects to be held or removably affixed to an alignment surface. Holding objects with the workpiece-holding tool ensures that the alignment of objects with an alignment surface does not change while a user is operating upon a workpiece, e.g., as by joining aligned objects together, without interfering or obstructing access to the objects. The ability to hold objects is enhanced by the inclusion of cutouts that provide increased access to interior surfaces of the workpiece-holding tool, such as to increase the area available for use of clamps or other fastening devices.

Abstract: The disclosure relates to a workpiece handling systems and workpiece storage devices for elongate workpieces of shaft-like form which are at least substantially rotationally symmetrical relative to their longitudinal axis and which have along their longitudinal axis at least one projection extending in the peripheral direction, which projection protrudes radially outwards relative to a workpiece region arranged immediately axially adjacent thereto. The workpiece storage device includes a base plate and a plurality of workpiece holders. The workpiece holders are fastened to the base plate and protrude upwards therefrom, and which define workpiece receiving surfaces.

Abstract: A machine tool includes a first machine element movable in a travel direction and having first and second side faces. The first and second side faces of the first machine element run parallel to the travel direction and are oriented at a right angle to each other. The first machine element is moved in the travel direction in a guideway of a second machine element by a drive unit in a positionally controlled manner. The machine tool further includes first and second vibration dampers which are oriented at a right angle to the travel direction and configured to dampen vibrations of the first machine element in respective vibration directions. At least one of the first and second vibration dampers is oriented to solely dampen a vibration in a vibration direction that is neither parallel to the first side face nor parallel to the second side face.

Abstract: A dust collecting system includes a power tool and a dust collector, The dust collector includes a body, a sliding part, a biasing member, a lock member and an actuator. The body is configured to be removably attached to the power tool. The sliding part is held by the body so as to be slidable along a sliding axis. The biasing member is configured to bias the sliding part forward to hold the sliding part in a first position. The lock member is configured to lock the sliding part relative to the body in a second position. The actuator is configured to unlock the sliding part locked by the lock member, by operating in response to a motor-starting operation for the power tool by a user.