Abstract: The present invention addresses the problem of providing a cylinder liner for insert casting, with which the bonding strength between a cylinder liner and a cylinder block can be improved by reducing voids generated on the cylinder block. The problem is solved by a cylinder liner for insert casting which includes plural projections on its outer peripheral surface and satisfies the following (i) and (ii): (i) the number of the projections is 5 to 50 per 1 cm2 on the outer peripheral surface, and (ii) when two 15.2 mm×0.03 mm lines are set in parallel with a gap of 3.8 mm therebetween at an arbitrary position on the outer peripheral surface of the cylinder liner, the total number of projections that are in contact with the two lines is 8 or less.

Abstract: This copper alloy powder having an excellent laser absorptivity includes: either one or both of B and S in an amount of 0.003 mass % to 5.0 mass %, with a remainder being Cu and inevitable impurities, wherein an average particle diameter is 20 ?m to 80 ?m. This copper alloy powder having an excellent laser absorptivity is preferably a powder for metal additive manufacturing.

Abstract: An example of a method for making a build material composition for three-dimensional (3D) printing includes freezing a dispersion of flow additive nanoparticles in a liquid to form a frozen liquid containing the flow additive nanoparticles. The frozen liquid containing the flow additive nanoparticles is lyophilized to form flow additive agglomerates having a porous, fractal structure. The flow additive agglomerates are mixed with a host metal. The flow additive nanoparticles have an average flow additive particle size ranging from about 1 to about 3 orders of magnitude smaller than an average host metal particle size of the host metal.

Abstract: The present invention relates to a powder for additive manufacturing, having a composition consisting of, in mass %: 0.25<C<0.40, 0.001?Si?0.15, 0.30?Mn?0.45, 5.0?Cr?5.5, 1.0?Mo?1.5, 0.35?V?0.45, 0.01?N?0.05, 0.01?O?0.04, and optionally, P<0.10, Cu<0.20, Ni<0.20, Al<0.05, Zr<0.05, S<0.20, Pb<0.20, Bi<0.20, Nb<0.20, Ti<0.20, B<0.10, and Co<0.20, with the balance being Fe and unavoidable impurities, in which a surface of the powder for additive manufacturing is coated with an oxide film, and the oxide film has a thickness of 3 nm or more and 30 nm or less.

Abstract: The present invention keeps a residual stress small which may occur in a metal shaped object (MO) while keeping a time short which is to be taken for carrying out main heating and preheating. An irradiation device (13) carries out a first heating step of heating a powder bed (PB) with laser light (LL) so that a temperature (T) of the powder bed (PB) is higher than 0.8 times as high as a melting point (Tm) of the metal powder and a second heating step of heating the powder bed (PB) with cladding light (CL) before or after the first heating step so that a temperature (T) of the powder bed (PB) is 0.5 times to 0.8 times as high as the melting point (Tm) of the metal powder.

Abstract: A method for forming at least one three-dimensional article through successive fusion of parts of a powder bed, comprising the steps of: providing at least one model of said three-dimensional article, moving a support structure in z-direction at a predetermined speed while rotating said support structure at a predetermined speed, directing a first and second energy beam causing said powder layer to fuse in first and second selected locations according to said model, wherein a first cover area of said first energy beam on said powder layer is arranged at a predetermined minimum distance and non-overlapping from a second cover area of said second energy beam on said powder layer, a trajectory of said first cover area and a trajectory of said second cover area are at least one of overlapping each other, abutting each other or separated to each other when said support structure is rotated a full lap.

Abstract: In a sizing device equipped with a turntable having a plurality of accommodation holes that accommodate workpieces, carrying the workpiece in each of the accommodation holes to a through hole of a die disposed at a workpiece shaping position one by one, and causing the workpiece to be pressed by upper and lower punches, while each of the accommodation holes is moved from a workpiece supply position to a workpiece taking-out position by the turntable being rotated about a rotation axis, the sizing device includes a plurality of identification information holding units, a supply-side input unit, a shaping position read unit, a punch control unit, and a shaping position input unit.

Abstract: A metal-matrix composite tool includes a matrix region. The matrix region has a reinforcement material, an outer surface, and an inner, localized area spaced apart from the outer surface within the reinforcement material. The reinforcement material has a reinforcement density and the localized area has a localized density different from the reinforcement density. The matrix region has an overall matrix density different from both the reinforcement density and the localized density.

Abstract: The present disclosure is directed to systems and methods for producing a metal-containing powder useful for additive manufacturing. The metal-containing powder includes a plurality of metal-containing platelets having a defined physical geometry and a defined aspect ratio. The metal platelets may be produced by depositing a metal layer on a substrate that includes one or more recessed or raised surface features. The one or more recessed or raised surface features create a fracture pattern in a metal layer deposited across at least a portion of the one or more surface features. By separating the metal layer from the substrate and fracturing the metal layer along the fracture pattern, a plurality of metal platelets are produced. In some embodiments, a release agent may be disposed between the metal layer and the substrate to facilitate the separation of the metal layer from the substrate.

Abstract: A controllable preparation method for a plasmonic nanonail structure is provided. A size of a nanomaterial can be controlled at sub-wavelength. The nanomaterial has good localized surface plasmon resonance effect, and the optical, electrical and mechanical properties of the nanometer material all can be regulated. The plasmonic nanonail is composed of two parts, i.e., a silver nanorod, a gold nanorod or a silver-gold-silver alloy nanorod and an approximate equilateral triangular nano-silver plate growing on the nanorod. A length of the nanorod is controlled within 20-30 nanometers, a diameter of the nanorod is controlled within 10-200 nanometers, a side length of the triangular nano-silver plate is controlled within 20 nanometers to 2 microns, and a size of the triangular plate is less than or equal to the length of the nanorod.

Abstract: The present disclosure relates to a turret tool post for a machine tool, the turret tool post including: a tool post body; a turret installed on the tool post body and configured to receive a plurality of tools; a drive unit installed on the tool post body and configured to provide rotational power to the turret; a rotary unit installed on a part of the turret so as to be rotated together with the turret and coupled to an optional unit; and a fixing unit installed on the tool post body and configured to be clamped with or unclamped from the rotary unit by a rotation of the rotary unit in order to allow or cut off a supply of pressure required for an operation of the optional unit.

Abstract: The present disclosure provides a numerical control machine and a cutting method. The numerical control machine includes a workpiece seat for fixing a workpiece, a cutting tool, a non-contact measurement component for measuring a contour of a surface to be machined of the workpiece, a power component and a control component. The workpiece seat is rotatable relative to the cutting tool or the non-contact measurement component under driving of the power component, and/or the cutting tool is rotatable relative to the workpiece seat under the driving of the power component. Both the cutting tool and the non-contact measurement component are mounted on the numerical control machine, and distances from the workpiece seat to both is adjustable. The control component is electrically connected with the non-contact measurement component and the power component.

Abstract: Disclosed is a TiN-based sintered body and a cutting tool made of the TiN-based sintered body, which has 70 to 94 area % of a TiN phase, 1 to 25 area % of a Mo2C phase, and a remainder including a binder phase. The binder phase contains Fe and Ni whose total area ratio is 5 to 15 area %, and an amount of Ni to a total amount of Fe and Ni is 15 to 35 mass %. When an X-ray diffraction profile is measured in the cross section of the TiN-based sintered body, the diffraction peaks of TiN, Mo2C and Fe—Ni having an fcc structure are present, but the diffraction peaks of Fe—Ni having a bcc structure, a Fe3Mo3C phase, and a Fe3Mo3N phase are absent. The lattice constant of the TiN is 4.235 to 4.245 ?, and that of the Fe—Ni having an fcc structure is 3.58 to 3.62 ?.

Abstract: An assembly and method for drilling micro holes in a tube including an outer wall having opposing open ends and forming an inner channel. The method includes the steps of submerging the tube in water so the water fills the inner channel, retaining the water in the inner channel, freezing the water in the inner channel so as to form an ice backing in the inner channel, and drilling through the outer wall such that the ice backing supports the outer wall and prevents the outer wall from deforming or distorting near the hole location.

Abstract: In this drill, a wall face of a chip removal groove includes a first wall face having a concave curve shape and a second wall face having a straight line shape in a cross section orthogonal to an axis of the drill main body, an extension line of a straight line of the second wall face extends in a direction opposite to a drill rotation direction as the straight line of the second wall face goes to an outer periphery side of the drill main body with respect to a radius line connecting an outer peripheral end of the second wall face and the axis with each other, the cutting edge includes a first cutting edge having a concave curve shape and a second cutting edge having a straight line shape which intersects with the first cutting edge at an obtuse angle.

Abstract: A cutter includes a rake face on which a recessed groove extending along a direction of a rotation axis of a rotary holder to be open at a flank face of the cutter are formed. The recessed groove includes a plurality of recessed grooves formed at predetermined intervals along a direction intersecting with the rotation axis. A cutting blade portion extending along a direction intersecting with the rotation axis is provided on a continuous portion of the rake face and the flank face. The cutting blade portion includes a first region made up of an intersecting portion of the rake face and the flank face and a second region made up of a peripheral edge portion of an opening portion of the recessed groove at the flank face.

Abstract: A toolholder (10) has a pocket (20) that accommodates two styles of cutting inserts (25, 25?) having different clearance angles (CA). A support pad (78, 80) protrudes from two side walls (82, 84) of the pocket (20). Each support pad (78, 80) includes a first, planar wall (78a, 80a) and a second, planar wall (78b, 80b) formed at a different angle (94) than an angle (92) of the first, planar wall (78a, 80a). The first, planar wall (78a, 80a) enables the pocket (20) to accommodate the second cutting insert (25?), and the second, planar wall (78b, 80b) enables the pocket (20) to accommodate the first cutting insert (25). In one aspect, the support pads (78, 80) extend the entire length, L, of the support pad (78, 80). In another aspect, an indentation (112, 114) divides one or both of the support pads (178, 180) into two portions, each portion having two planar walls (178a, 178b, 178c, 178d, 180a, 180b, 180c, 180d).

Abstract: A cutting insert of the present invention comprises: an upper surface and a lower surface; first and second lateral surfaces; first and second cutting edge parts; and corner cutting edges, wherein the first cutting edge part includes: a first main cutting edge for forming one end at a portion spaced farthest away from the corner cutting edge; a first sub-cutting edge connected to the corner cutting edge; and a first auxiliary cutting edge for connecting the first main cutting edge and the first sub-cutting edge so as to form a step between the same, and the first sub-cutting edge and the corner cutting edge form one straight line when viewed toward the first lateral surface, and are inclined upward in the direction opposite to the direction toward the lower surface while gradually going in the direction toward the second cutting edge part.

Abstract: A cutting insert may include a base body, a first part and a second part. The base body may include a first surface, a second surface, a first lateral surface, a second lateral surface, a first recess and a second recess. The first part may be located in the first recess. The second part may be located in the second recess. The first recess may include a first bottom surface, a first wall surface and a first valley line located on an intersection of the first bottom surface and the first wall surface. The second recess may include a second bottom surface, a second wall surface and a second valley line located on an intersection of the second bottom surface and the second wall surface. The first valley line may intersect with the second valley line in a perspective view of the first surface.

Abstract: A force and moment canceling reciprocating mechanism for a power-driven tool may include a transmission including an input gear assembly and an output gear assembly, coupled to a reciprocating mechanism. The input gear assembly may include a first input gear coaxially aligned with a second input gear. The output gear assembly may include a first output gear coaxially arranged with a second output gear. The reciprocating mechanism may be coupled to the output gear assembly, to convert rotational motion to linear motion, for output to an output accessory of the tool. One or both of the first and second input gears may include counterweights, or counterweight masses, and one or both of the first and second output gears may include counterweights, or counterweight masses. The counterweighting of the input and output gear assemblies may provide for the cancelation of forces and moments generated by the operation of the motor and the transmission, and the reciprocal motion of the reciprocating mechanism.

Abstract: A thread forming tool comprises a thread generating region that extends along a helical line with a thread pitch angle and a thread direction of the thread to be formed and has an active profile corresponding to the thread profile of the thread to be formed, wherein the thread generating region has a thread tooth having a thread profile with a front thread tooth profile flank and a rear thread tooth profile flank, has a front flank relieved surface, adjoining the front thread tooth profile flank and has a rear flank relieved surface, adjoining the rear thread tooth profile flank, wherein the front flank relieved surface is isolated relative to a front thread tooth flank envelope, wherein the rear flank relieved surface is displaced relative to a rear transverse plane wherein the helical line is inclined to the rear relative to the rear transverse plane by the thread pitch angle.

Abstract: A thread restoration tool (10), including: a first (30A) and second (30B) jaw, being horizontally rotatable (72B) one in relation to the other, for gripping the thread (22) in between; at least one knife (20A, 20B), extending from at least one of the first (30A) and second (30B) jaws, for being inserted into the thread (22) by the gripping; a vertical to horizontal convertor (208), for converting vertical motion of a vertically positioned rod (36) to the horizontal rotating of one of the jaws (30A, 30B) in relation to the other, thereby the gripping of the thread (22) is operable via the top (44A) of the rod (36) being disposed above the thread (22), thereby reducing occupied space (220) around the thread (22), required for the gripping.

Abstract: An electrode guide assembly for an EDM process includes a guide tube having a first end and a second end, a fluid feed portion, a fluid return portion, and an electrode. The guide tube has a set of at least two supporting protrusions, with the protrusions projecting radially inwardly from an inner diametral surface of the guide tube. The electrode is slidably accommodated within the guide tube, with an outer diametral surface of the electrode abutting against the set of supporting protrusions. The first end of the guide tube is in fluid communication with the second end of the guide tube to thereby provide a fluid feed channel, and the second end of the guide tube is in fluid communication with the first end of the guide tube to thereby provide a fluid return channel.

Abstract: A soldering device according to an embodiment includes a jet nozzle and a cover. The jet nozzle jets a molten solder. The cover is filled with an inert gas in an inside thereof and has a hole part at a position that corresponds to the jet nozzle. The cover causes the jet nozzle to protrude from the hole part for an application time period when the solder is applied to an application target and houses the jet nozzle in the inside thereof for a waiting time period other than the application time period.

Abstract: A technique for creating a weld along a joint. A method begins by positioning a first edge of a first member proximate to a second edge of a second member to form the joint, wherein the joint is to be welded along the length from a first position on the joint to a second position on the joint. A clamping ring of a refill spot welding apparatus is placed to surround an unwelded portion of the length. The clamping ring contacts a top surface of the first member and a top surface of the second member. A first refill spot weld process is performed with the refill spot welding apparatus to join the first member and the second member at a first spot weld on the joint.

Abstract: A welding tool includes a tool support and a welding torch coupled to the tool support. The welding tool is configured to rotate relative to the tool support about a welding axis. A locating device is coupled to the tool support and is movable between a retracted position and an extended position. In the extended position, the locating device extends toward the welding axis. The locating device includes a recess at an end of the locating device. The recess is configured such that, when a predetermined object to be welded (such as an anchor rod) is positioned at least partially within the recess of the locating device in the extended position, the welding axis passes through the object to be welded.

Abstract: A pre-assembled insulated weld backing ring for a tubular section of the pipeline. The weld backing ring includes a metal cylinder and an insulation layer. The metal cylinder has a ring-shaped anterior portion and a ring-shaped raised posterior portion with a step therebetween. The posterior portion has a larger diameter than the anterior portion to define an insulation pocket. The insulation layer is positioned on the external surface of the metal cylinder. The insulation layer is made of an insulated material positioned in the insulation pocket to define a protective barrier to protect the tubular section during welding. The weld backing ring may also include a second metal cylinder positioned on the insulation layer. The weld backing ring may be pre-assembled by applying a tubular metal section material to a sheet of metal and rolling the sheet of metal to form the metal cylinder.

Abstract: Disclosed is a welding system configured to perform additive manufacturing, particularly a welding system to achieve a stable a laser metal deposition with hot wire process by controlling the contact point between the welding wire and the workpiece. For example, the resistance of the stick-out wire is measured and the measured resistance is converted to a distance signal, which can then be used for comparison to a desired distance. The distance between the contact tip and the workpiece can then be adjusted based on the comparison. The present disclosure also relates to using a constant enthalpy system to determine and control the contact tip to workpiece distance.

Abstract: A system and method of welding or additive manufacturing is provided where at least two welding electrodes are provided to and passed through a two separate orifices on a single contact tip and a welding waveform is provided to the electrodes through the contact tip to weld simultaneously with both electrodes, where a bridge droplet is formed between the electrodes and then transferred to the puddle.

Abstract: A fixture for automatically replacing a defective/burnback contact tip coupled to a torch arm of a robotic welder wherein the robotic welder is configured to feed a welding wire to the contact tip. The robotic welder includes a nozzle coupled to the torch arm which is disposed at the contact tip. The fixture includes a first station configured to remove the nozzle from the torch arm and to hold the nozzle for reattachment to the torch arm. A second station is configured to remove the contact tip from the torch arm. A third station includes a plurality of holding units each being configured to hold an unused contact tip, wherein the third station is configured to move one of the plurality of holding units to a predetermined location to locate the unused contact tip for attachment to the torch arm.

Abstract: A purge system useful in welding applications to provide a shielding or purging gas to a weld site, preferably of a tube, pipe or construction, while also providing controlled release of an exhaust gas and pressure relief through the use of a permeable body. The purge system is also flame resistant allowing use in close proximity to the weld site. The design facilitates ease of insertion, holding and retraction in a tube, pipe or other construction.

Abstract: A weld rivet for use in a method of resistance element welding of dissimilar materials includes a shank portion, a cap portion, and a coating. The shank portion has a cylindrical shape, a first end, and a second end opposite the first end. The cap portion has a flat disc shape, a top surface, and a bottom surface. The bottom surface of the cap portion is disposed on the first end of the shank portion. The coating is disposed on the bottom surface of the cap portion. The coating electrically insulates the cap portion.

Abstract: A resistance spot welding method comprises: performing test welding; and performing actual welding after the test welding, wherein the test welding is performed under each of two or more welding conditions. In the test welding, for each of the welding conditions, an electrode force parameter from when electrode force application to parts to be welded starts to when a set electrode force is reached before start of current passage and a time variation curve of an instantaneous amount of heat generated and a cumulative amount of heat generated are stored.

Abstract: A component, which may be an automotive chassis structure, includes first and second sub-part main bodies. The first sub-part main body is formed of a first material, and the second sub-part main body is formed of a second material. The first material is a steel alloy, and the second material is aluminum or an aluminum alloy. A transition layer is attached to and contacts the first sub-part main body. The transition layer is formed of a third material, where the third material contains at least a majority of copper. A mixed layer is disposed between the transition layer and the second sub-part main body, and the mixed layer is formed of a mixture of the second material and the third material. A disclosed method includes forming the component by friction stir welding the transition layer to the second sub-part main body.

Abstract: A laser beam irradiation unit of a laser processing apparatus includes a first laser oscillator that emits a first laser beam with a short pulse width, a second laser oscillator that emits a second laser beam with a long pulse width, a polarizing beam splitter that combines the first laser beam and the second laser beam, and a liquid layer forming instrument that forms a layer of a liquid on the upper surface of a workpiece. The same place on the workpiece is irradiated with the first laser beam and the second laser beam while a chuck table and the laser beam irradiation unit are relatively moved, and plasma generated when irradiation with the first laser beam is performed through the layer of the liquid is grown by energy of the second laser beam to perform processing for the workpiece.

Abstract: Embodiments of systems and methods for dicing a bonded structure are provided. A method includes the following operations. First, a scan pattern can be determined for forming a series of ablation structures in the bonded structure. Relative positions between the series of ablation structures and a bonding interface of the bonded structure can then be determined. The bonding surface may be between a first wafer and a second wafer. At least one of one or more focal planes or a depth of focus of a laser beam may be determined based on the relative positions between the series of ablation structures and the bonding interface. Further, the laser beam may be determined. The laser beam has a series of pulsed lasers. Further, the laser beam may be moved in the bonded structure according to the scan pattern to form the series of ablation structures in the bonded structure.

Abstract: The present application relates to a method of laser ablation of a metal-ceramic substrate, in which a laser is used under process conditions in which the formation of solid metal particles on the metal-ceramic substrate, which can separate from metal particles released by laser ablation near the ablation edge, is essentially avoided. Further the present application relates to a ceramic-metal substrate comprising a ceramic substrate and a metallization on at least one side of the ceramic substrate, wherein the ceramic substrate and the metallization have flush cutting edge.

Abstract: A an optical device for shaping an electromagnetic wave beam and a use thereof, a beam treatment device and a use thereof, and a beam treatment method are provided. The optical device has an optical element positioned within beam propagation direction, and an exciter means functionally connected to the optical element for inducing an oscillation of the focal point in at least one of an x direction and any direction of a plane perpendicular to the beam propagation direction along a focal point oscillation path.

Abstract: The invention concerns a method and an apparatus for processing an object (1) by means of interfering laser beams. It is the task of the invention to provide for an improved compensation of the aberrations accumulated over the beam path in such processes/apparatuses, since these are a substantial disturbing factor with respect to the precision in structuring the material. Furthermore, the influence of the period course, i.e. the spatial modulation of the period of the modification produced in the material of the object (1), shall be improved. The invention proposes that laser radiation is generated as a collimated laser beam (3). The intensity distribution and/or the phase progression is influenced over the cross-section of the laser beam (3) to correct aberrations. The laser beam (3) is divided into two partial beams (6, 7). Finally, the partial beams (6, 7) are deflected and focused so that the partial beams (6, 7) overlap in a processing zone (10) in the material of the object (1).

Abstract: A first member and a second member are formed of metal materials of the same type and a third member is formed of a material of a different type that is difficult to weld to the first member and the second member. The first member and the second member are laser welded to each other such that respective regions of the first member and the second member which correspond to the spacer are welded via a through hole with the third member interposed therebetween. The spacer is formed of a filler material jointed to the second member by arc welding and is formed such that a central portion protrudes toward the first member more than an outer peripheral portion.

Abstract: Provided is a manufacturing method for a joint body having a blank material plated with a metal material and a hoop material plated with a metal material joined together by placing the hoop material on the blank material and causing a laser oscillation system to irradiate a surface of the hoop material with laser light to form a joint portion including a line-shaped welded portion where the blank material and the hoop material are joined together. In this manufacturing method, the hoop material is supplied to be placed on the blank material and form a predetermined gap d between the blank material and the hoop material, and the hoop material is irradiated with a laser at a position where the predetermined gap d is located between the blank material and the hoop material to join the blank material and the hoop material together by laser welding.

Abstract: The disclosure relates to a method for welding sheets provided with an aluminum silicon anti-corrosion coating, wherein chronologically before the welding, the aluminum silicon layer on the sheets in the region of the weld joint and the underlying intermetallic interlayer between the base material and the anti-corrosion coating is passed over with a laser and as a result, on the one hand, material of the aluminum silicon layer and the underlying intermetallic interlayer is vaporized and aspirated and on the other hand, a reaction with the base material extending into the base material is produced so that a metallic reaction ablation layer or alloying ablation layer is produced, which has iron and possibly alloying elements from the base material and aluminum silicon from the aluminum silicon layer and the intermetallic interlayer, the reaction layer reaching a thickness of 5 ?m to 100 ?m.

Abstract: A first member and a second member are formed of metal materials of the same type and a third member is formed of a material of a different type that is difficult to weld to the first member and the second member. The first member and the second member are welded to each other via a through hole with the third member interposed therebetween in a region corresponding to a first protrusion. For the first member and the third member, and the second member and the third member, each of respective outer peripheral portions of an overlapping portion of the first member and the third member and an overlapping portion of and the second member and the third member is welded.

Abstract: The invention relates to a method for determining production-related shape deviations (?l,i) and stresses in a construction (11) produced by means of an additive production method, which construction is produced by solidifying construction material in successive layers (12). The invention further relates to a use of said method to produce corrected production data (19) and to the application of said production data in an additive production system. The invention further relates to a computer-readable data carrier and to a computer program for performing said method and to a simulation in which such a computer program can run. In the method, superlayers (13) are used in order to reduce the computational complexity of the simulation.

Abstract: A cutting processing machine includes an NC device. The NC device includes a tool diameter correction amount calculator, a processing trace calculator, and a driving controller. In a case where a processing condition includes cutting tool change information set with a change of a tool trace during cutting processing and set such that, in a case where the tool trace is changed, a control center point is fixed relative to a surface to be processed of a final processed product, the tool diameter correction amount calculator recognizes a plurality of tool traces included in the cutting tool change information and generates tool diameter correction information that includes the plurality of tool traces, positions formed with a surface to be processed, the control center point, and tool diameter correction values. The processing trace calculator generates a tool diameter correction control signal.

Abstract: The invention relates to a method for producing modifications (9) in the interior of a solid body (1). The method comprises the introduction of laser radiation (14) of a laser (29) into the interior of the solid body (1) via a first surface (8) of the solid body (1). The solid body (1) forms a crystal structure. Modifications (9) are produced at predefined points in a production plane (4) in the interior of the solid body (1) by the laser radiation (14). The modifications (9) are closer to the first surface (8) than to a second surface, the second surface being parallel to the first surface (8). A plurality of linear forms (103) can be produced by the modifications (9). The solid body (1) cracks subcritically in the region of each modification (9). The subcritical cracks have an average crack length of less than 150 ?m orthogonally to the direction of longitudinal extent of the linear form in question.

Abstract: The present invention provides a solder paste that suppresses generation of voids and has excellent reliability. A solder paste contains Sn-based powder, SnSb-based alloy powder with Sn and 10 mass % or more of Sb, and flux, wherein a liquidus temperature of the SnSb-based alloy powder is higher than a liquidus temperature of the Sn-based powder, and a content ratio of the Sn-based powder and the SnSb-based alloy powder is 75:25 to 95:5. Preferably, the content ratio of the Sn-based powder to the SnSb-based alloy powder is 80:20 to 90:10.

Abstract: The flux according to the present invention includes a fatty acid amide; a first solvent having a temperature, at which its mass measured by thermogravimetry at a nitrogen flow rate of 0.2 to 0.3 L per minute and a temperature increase rate of 10° C. per minute becomes zero, of from 180° C. to lower than 260° C.; and a second solvent having a temperature, at which its mass measured by thermogravimetry at a nitrogen flow rate of 0.2 to 0.3 L per minute and a temperature increase rate of 10° C. per minute becomes zero, of from 100° C. to lower than 220° C. The flux has a content of the first solvent that is lower than a content of the second solvent. The flux does not include reducing agents for reduction removal of surface oxide films of solder, and does not include activators for improving reducibility.

Abstract: A pipe clamping apparatus of a pipe processing machine includes first and second slide rails on inner and outer end surfaces of the clamping apparatus, a turntable with slot openings, first and second rotating rings with a gear rack, plural linkage modules and plural clamping components. A rod of the pneumatic cylinder is fixed to the inner end surface; the pneumatic cylinder has a rack engaged with the gear rack and is fixed to a block having an oblique slot and a rail slot; and the clamping component has a claw, a slider passing through the slot opening and oblique slot, and a rail slot. Air drives the pneumatic cylinder to move, while the rack is driving the first or second rotating rings to move the opposite pneumatic cylinder in an opposite direction, and the slider slides in the oblique slot to drive the claw to clamp the pipe.

Abstract: A method of fabricating an oscillating heat pipe includes building the oscillating heat pipe with a layer-by-layer additive manufacturing process such that the oscillating heat pipe includes a body of solid material, an array of channels, an evaporator portion, and a condenser portion. The array of channels are disposed in the body and define a continuous loop through which a fluid flows. The array of channels is formed by cavities in the body as the body is formed with layer-by-layer additive manufacturing. An inner surface of a channel includes a flow directing feature that is configured to promote a first direction of flow and that is configured to provide resistance against a second direction of flow that is opposite the first direction of flow.