Abstract: Provided is a control apparatus for a robot arm performing assembly. The control apparatus includes an operation database recording information as to an operation of the robot arm, and includes a correction operation type determining unit determining a correction type for the operation. The control apparatus also includes a force detecting unit detecting a force of a person, and an operation correction unit correcting an operation in accordance with the force of the person and the correction type, while the robot arm is performing a task.

Abstract: A measuring apparatus for measuring a voice-coil-motor focusing device having a magnet holder and a coil carrier movably disposed in the magnet holder includes a current device, an image capturing device, a collimator, a half-reflecting mirror, a reflecting mirror, and an optical sensing device. The image capturing device captures images of the coil carrier during the coil carrier is driven by the current device to move transversely to calculate displacement data of the coil carrier. Light of the collimator is reflected to the coil carrier by the half-reflecting mirror and then reflected back to the half-reflecting mirror by the reflecting mirror. The optical sensing device detects light reflected by the half-reflecting mirror during the coil carrier is driven by the current device to move transversely to calculate tilt-angle data of the coil carrier.

Abstract: A vertical laser cladding system is particularly effective for the interior surfaces of tube-like structures. The vertical cladding process works from bottom to top, so that previously clad layers form a shelf for subsequent application of cladding powder. This system is also particularly effective for handling double-bore plasticating barrels.

Abstract: A method for producing a part from ductile iron, including the steps of designing the part in such a way that the part is composed of a plurality of part components, producing the part components from ductile iron, providing the part components in pairs, depositing buffer material onto the rim edge of the first part component and onto the rim edge of the second part component by means of deposition welding, laying the second part component with the rim section thereof on the rim section of the first part component so that the rim edges lie against each other with the buffer materials thereof, and welding the rim sections, wherein the buffer material is selected in such a way that a structure change in the ductile iron material of the part components is prevented when the rim sections are welded.

Abstract: A method of laser welding is disclosed. The method may be performed after an upper steel plate and a lower steel plate are overlapped. The method may include: forming a molten pool at the upper steel plate and the lower steel plate and welding the upper steel plate and the lower steel plate by irradiating a laser beam of focal region to a welding portion of the upper steel plate and the lower steel plate along a main welding pattern; and melting a peripheral portion of a keyhole formed at an end of the main welding pattern and welding the upper steel plate and the lower steel plate by irradiating the laser beam of the focal region along a fine welding pattern added to an end portion of the main welding pattern.

Abstract: An optical system configured to detect optical signals during imaging sessions. The optical system includes an objective lens that has a collecting end that is positioned proximate to a sample and configured to receive optical signals therefrom. The optical system also includes a removable path compensator that is configured to be located at an imaging position between the collecting end of the objective lens and the sample. The path compensator adjusts an optical path of the light emissions when in the imaging position. Also, the optical system includes a transfer device that is configured to move the path compensator. The transfer device locates the path compensator at the imaging position for a first imaging session and removes the path compensator from the imaging position for a second imaging session.

Abstract: A method of welding alloys having a ductility drop temperature range to limit strain-age cracking. The method involves the use of a welding device to weld a weld area of an article while maintaining temperatures throughout the weld area and a heat affected zone adjacent the weld area within a non-crack sensitive temperature range that is above a ductility drop temperature range of the alloy being welded. During welding, the temperatures of the weld area and the heat affected zone are predominantly controlled with heat input from the welding device. Once the welding has been terminated, the weld area and the heat affected zone are cooled from the non-crack sensitive temperature range through the ductility drop temperature range to a temperature below the ductility drop temperature range of the alloy.

Abstract: A system and method for use in brazing, cladding, building up, filling, overlaying, welding, and joining applications is provided. The system includes a first laser beam system which directs a first laser beam at a surface of at least one workpiece to create a molten puddle on the surface and a wire feeder which advances a consumable to the molten puddle so that the consumable contacts the molten puddle. The system also includes a power supply which outputs a heating signal and the heating signal is directed to the consumable to heat the consumable prior to the consumable entering the puddle. The system further includes a second laser beam system which directs a second laser beam at the consumable prior to the consumable entering the puddle and a controller which controls an output of each of the power supply and the second laser beam system.

Abstract: A method for closing housing having first and second heat conductive housing elements, involves arranging a joining material between the housing elements. At least one of the housing elements is heated such that the joining material is conditioned for the joining of the housing elements. At least one of the housing elements has a localized reduction in the heat conductivity such that the dissipation of heat in the at least one housing element is reduced.

Abstract: The present invention relates to a process for joining workpieces made of zinc-containing aluminum alloys by laser beam welding, in which process a layer consisting of vanadium is introduced into the joining gap between the workpieces to be connected to avoid the formation of pores, and the workpieces are then connected to one another by laser beam welding.

Abstract: A welding device has a beam source to generate electromagnetic beams for absorption in an object to be welded at a welding location, and at least one sensor situated to detect electromagnetic process beams generated during welding at the welding location. The sensor is to generate a sensor signal as a function of the detected process beams. The welding device also has a processing unit, which is connected to the sensor and the beam source, the processing unit being configured to control at least one parameter of the beam generation of the beam source as a function of the sensor signal. The welding device is to delimit by a window a beam bundle of the emitted process beams in a plane transverse to the beam propagation direction; in the plane, the window has a longitudinal dimension greater than a transversal dimension of the window perpendicular to the longitudinal dimension.

Abstract: A component of an implantable medical device may include a first member, a second member, and a composite seam weld formed between the first member and the second member. In some examples, the composite seam weld includes a continuous wave (CW)-welded portion formed using CW welding and a pulse-welded portion formed using pulsed welding. A first end of the pulse-welded portion may partially overlap a first end of the CW-welded portion and may be offset from the first end of the CW-welded portion in a direction substantially perpendicular to a longitudinal orientation of the first end of the CW-welded portion. Techniques for forming composite seam welds are also described.

Abstract: Disclosed are: a welding method capable of increasing the welding speed up to approximately 20 m/min., yet capable of producing good bead configurations and preventing welding defects such as blowholes; and a method of producing a welded member using the welding method. Specifically disclosed is a laser/arc hybrid welding method for butt-welding flat plates of stainless steel, titanium, or titanium alloy, or butt-welding both ends of a strip-shaped plate of stainless steel, titanium, or titanium alloy which has been formed into a tubular shape, wherein in the butt welding, the laser beam irradiation and the arc discharge trace the same welding line in such a manner that laser welding is followed by TIG arc welding.

Abstract: The invention relates to a method for monitoring a laser machining operation to be performed on a workpiece, comprising the following steps: detecting at least two current measured values by at least one sensor, which monitors the laser machining operation, determining at least two current characteristic values from the at least two current measured values, wherein the at least two current characteristic values jointly represent a current fingerprint in a characteristic value space, providing a predetermined point set in the characteristic value space, and classifying the laser machining operation by detecting the position of the current fingerprint relative to the predetermined point set in the characteristic value space, wherein the at least one sensor comprises at least one camera unit, which records camera images with different exposure times and processes them together by using a high dynamic range (HDR) method, in order to provide images having a high contrast ratio as the current measured values.

Abstract: A friction stir welding apparatus having a new cooling system that can cool a portion required to be cooled accurately and uniformly with a simple configuration, while suppressing unnecessary thermal expansion of a mounting jig includes a holding mechanism 20 having a holding member 22a movable with respect to a processing target member W so as to freely hold the processing target member W, in which the holding member 22a and a portion of a mounting jig 12 that can freely face the holding member 22a become paired, and a coolant supply source S that can freely supply a coolant to the paired holding member 22a and the portion of the mounting jig 12.

Abstract: The invention provides a hot stamped structural component (20) for an automotive vehicle, such as a B-pillar, including a first part (22) formed of a high strength steel material joined to a second part (24) formed of a high ductility steel material. The structural component (20) also includes a locally tempered transition zone (26) along the joint (28) to reduce the potential for failure along the joint (28). The transition zone (26) has strength and ductility levels between the strength and ductility levels of the remaining portions of the first and second parts (22, 24). The tempering step can be incorporated into a laser trimming cell or assembly cell, and thus the transition zone (26) can be created without adding an additional process step or increasing cycle time.

Abstract: Turbine buckets include a pressure side, a suction side opposite the pressure side, and a bucket squealer tip attached to the pressure side and the suction side. The bucket squealer tip includes a plurality of high hot hardness shroud-cutting deposits deposited on its exterior surface that have a hardness of at least about 1100 kg mm?2 and a melting temperature of at least about 1500° C.

Abstract: The member joining method including: a member disposing process of disposing the first member and the second member such that the first plate-shaped section and the second plate-shaped section overlap in a thickness direction, a first laser radiating process of forming a melted section by radiating a laser beam to the first plate-shaped section overlapping the second plate-shaped section, and a second laser radiating process of, after solidifying the melted section to form a melted solidification section, radiating a laser beam to a surface of the melted solidification section so as to forcus the laser beam on the first plate-shaped section through the melted solidification section, melting the melted solidification section and the second plate-shaped section opposite to the melted solidification section to form a welding section formed of an alloy thereof, and joining the first plate-shaped section and the second plate-shaped section via the welding section.

Abstract: Hybrid welding methods include directing a laser beam from a laser onto a first component that is vertically offset from a second component, and, directing a weld arc from an arc welder onto a weld joint between the first component and the second component to weld the first and second components together.

Abstract: A method is provided for the remote laser welding of two coated sheets, wherein by way of a scanner, a laser beam is directed at the sheets to be connected to each other and guided on the sheets. The sheets are connected to each other by producing an end fillet weld on a lap joint. The continuous production of the weld is recorded by a camera and, if necessary, the path of the laser beam is corrected and adapted to a target weld course on the basis of an automatic evaluation of the recorded images.

Abstract: Disclosed are methods of welding a stack of metal foil layers together using a penetration weld. The methods include stacking of the metal foil layers, pressing or compressing the metal foil layers between end plates and welding the end plates and compressed metal foil layer stack together.

Abstract: A welding method for welding workpieces made of highly heat-resistant superalloys is provided. The method includes generating a heat input zone on the workpiece surface by means of a heat source, feeding welding filler material into the heat input zone by means of a feeding device, and generating a relative motion between the heat source and the feeding device on one hand and the workpiece surface on the other hand by means of a conveying device. Furthermore, according to the welding method, the mass feed rate is ?350 mg/min.

Abstract: Disclosed is a method for connecting a core wire of a wire rod covered with an insulating coating and pulled out from a coil component with a substrate by irradiating a laser beam, the method comprising the steps of: (a) forming a bond part between the wire rod and the substrate, the bond part being made of a material having a high optical absorptance for laser beam; and (b) irradiating a laser beam on an area to be connected under a state that at least one of the wire rod and the substrate is being pulled toward the other.

Abstract: A method of fabricating boiler water walls that includes the steps of forming a subpanel formed of at least one fin and one tube by laser arc welding the at least one fin to the one tube and then laser arc welding a predetermined plurality of subpanels together in a two-dimensional plane by laser arc welding an additional joining element between respective subpanels to form the water wall.

Abstract: Embodiments include a modular flex plate assembly with a plurality of modular segments connectable with at least another modular segment by joining a first end of one modular segment to a second end of another modular segment to form a ring gear. The ring gear can be mounted to a substrate and mounted or fastened to a component of an engine or a transmission system. A plurality of securing devices can cooperatively engage the ring gear to a substrate, such that the gear teeth of the ring gear align with the perimeter edge of the substrate.

Abstract: A method for laser cladding a material onto a surface of a machine component using a laser scanning head with laser scanning optics is disclosed. The method includes forming a molten bead of cladding material by directing a beam with the laser scanning optics over a bead scan on the machine component. The method also includes directing the beam with the laser scanning optics over a secondary scan on the machine component, the secondary scan being offset from the bead scan at a predetermined distance on the machine component.

Abstract: The present invention relates to a device for guiding a laser beam along a target path, particularly a joint. It has a laser beam input module that guides an incident laser beam onto a swiveling beam guiding device downstream from the laser beam input module. The beam guiding device projects the laser beam onto the target path. Said beam guiding device comprises a tactile sensor connected to the swiveling optic that is designed to perform a tactile scan of the target path and to deflect the swiveling optic appropriately. According to the invention, an intermediate focal point is located in the beam path of the laser beam between laser beam input module and swiveling optic. Moreover, the swivel axis of the swiveling optic runs through the intermediate focal point.

Abstract: A laser-welded joint structure between insulation frame and bearing cup of fan includes a base having a bearing cup and a stator having at least one insulation frame. The insulation frame includes a sleeve portion defining a bore axially extending therethrough. The sleeve portion is provided on an inner wall surface with at least one pressing section that radially projects into the bore to press a lower side against an upper end of the bearing cup and a bearing received therein. A portion of at least one lateral side of each pressing section that is in contact with the upper end of the bearing cup is melted by laser beam to form a laser-welded joint, so that the insulation frame and the bearing cup are integrally connected together at reduced manufacturing cost and have increased structural strength. A method of forming the laser-welded joint structure is also disclosed.

Abstract: A turbine component repair apparatus includes: a first die having male and female halves for clamping a first section of a turbine blade with a platform and a root portion of an airfoil, the first die having a recess shaped to receive the root portion and retain a faying surface thereof in predetermined alignment; and a second die having male and female halves for clamping a repair section which defines a tip portion of the airfoil, the second die having a second recess shaped to receive the tip portion and retain a faying surface of the tip portion in predetermined alignment. The first and second dies have mating front faces configured to align their bottom surfaces in a common plane. A alignment device is removably attached to the second die to temporarily align the repair section in the absence of the male half of the second die.

Abstract: A laser lap welding method for parts made of galvanized steel sheet includes steps of: press-forming two parts from galvanized steel sheet such that the two parts include elongated joining regions to be welded together on mutually opposed surfaces thereof and a plurality of protrusions are formed on at least any one of the joining regions of the two parts at predetermined intervals in a longitudinal direction of the joining region; retaining the two parts in a state in which the joining regions are overlapped one on the other such that a gap according to a height of the protrusions is formed between the joining regions; and irradiating a laser onto one surface of the overlapped joining regions of the two parts such that the overlapped joining regions are fused and welded by energy of the laser, and zinc gas produced with fusing is discharged through the gap.

Abstract: A cylinder block (10) includes an inter-bore flow passage (14) between adjacent bores (12). Each inter-bore flow passage (14) is formed by closing an opening-side groove portion (15) continuous from a cylinder block deck face and a bottom-side groove portion (16) with the use of a lid member (20) made of copper, and the lid member (20 is laser-welded to a groove wall face of the opening-side groove portion (15). Before the laser-welding, the lid member (20) has recesses (26) that are interspersed in a direction, in which a laser beam travels, at any one of connected portions at which the lid member (20 is connected to the groove wall face of the opening-side groove portion (15).

Abstract: A laser joint structure includes a metal outer cylinder, a metal inner member that is provided inside of the outer cylinder, in which a joining portion is arranged following an inner shape of the outer cylinder, the joining portion being arranged contacting or close to the outer cylinder; and a laser weld that is provided on a mating portion of the outer cylinder and a corresponding mating portion of the joining portion, and in which a circular cylindrical nugget is formed by melting the outer cylinder and the joining portion, which is accomplished by emitting a laser light from outside the outer cylinder.

Abstract: A flexible drill with a shaft having a nitinol portion (or nitinol region) provided between a stainless steel driver end and a stainless steel drill tip. The flexible drill with nitinol shaft is provided with a bearing surface to allow centering within a drill guide, low friction bearing and flexibility to drill around a curve. The bearing surface may be formed of a fluoropolymer such as LDPE (Low Density Polyethylene). The flexible drill shaft may be used through a drill guide, such as a curved drill sleeve.

Abstract: A method of fabricating a load compressor scroll housing includes the steps of forging near net shape parts that are machined and subsequently welded together. The forged portions are machined to define specific features of the scroll housing along with the mating surfaces. An interface between top and bottom portions is defined within the volute chamber. The weld joint at the interface provides a finished surface within the volute chamber such that airflow is not adversely affected and additional machine process are not required within the volute chamber after formation of the weld joint.

Abstract: A focal point controlling section is configured and arranged to control a focal point of the laser beam outputted from a laser oscillator to selectively focus the laser beam on a surface of a workpiece. A laser irradiation position moving section is configured to move a laser irradiation position at which the laser beam strikes on the surface of the workpiece. A control unit is configured to change a heat amount imparted on the surface of the workpiece to switch between a welding state and a non-welding state by controlling at least one of the focal point controlling section and the laser irradiation position moving section while controlling the laser oscillator to continuously output the laser beam before and after switching between the welding state and the non-welding state.

Abstract: A method for welding a developing blade to a supporting member may include increasing a relative movement speed of a welding laser and a developing blade, along a moving direction. The method may include maintaining, upon the welding laser reaching the developing blade, the relative movement speed and initiating irradiation of the welding laser toward the developing blade and the supporting member.

Abstract: Aspects include an apparatus, a blade assembly, and a method for manufacturing the apparatus with the blade assembly. The apparatus may include a developer carrier for carrying developer and a blade assembly. The blade assembly may include a blade disposed adjacent to the developer carrier and configured to regulate an amount of developer on the developer carrier. The blade may include a weld mark joining the blade to the supporting member. A first dimension of the weld mark in a first direction may be greater than a second dimension of the weld mark in a second direction perpendicular to the first direction, and a third dimension of the weld mark in a third direction may be a dimension of the thickness of the blade. The weld mark may be formed by irradiating a laser beam onto the blade while moving the laser beam or the blade.

Abstract: Aspects include an apparatus, a blade assembly, and a method for manufacturing the apparatus with the blade assembly. The apparatus may include a developer carrier for carrying developer and a blade assembly. The blade assembly may include a blade disposed adjacent to the developer carrier and configured to regulate an amount of developer on the developer carrier. The blade may include a plurality of weld marks joining the blade to the supporting member. Each of the plurality of weld marks may overlap with an adjacent one of the plurality of weld marks. Together the weld marks may form a combined weld mark that extends in a direction that the blade extends.

Abstract: A method of fabricating a module for an airframe or fuselage structure of an aircraft or spacecraft includes positioning a first member adjacent to a second member at an assembly station; welding the first member to the second member at the assembly station to produce a module having a welded joint between the first and second members; and peening at least one of the first member, the second member, and the welded joint at the assembly station to compensate for or to correct distortion caused by the welding.

Abstract: A structural member having an internal geometry capable of receive an object and substantially seamless outer surfaces, and that is obtainable by a method that includes providing several small plates, welding together the small plates, removing the weld residue, and polishing an outer surface of the structural member to achieve a certain desired visual effect. A middle plate, or several middle plates, may be positioned between a first plate and a second plate. The middle portion occupied by the middle plates includes an opening, cavity, and/or channel. The opening, cavity, and/or channel may receive a cable from an electronic device, or house a component. The plates and the opening, cavity, and/or channels between the plates, generally have a small form factor, and accordingly, require an assembly process to create the opening, cavity, and/or channels rather than using traditional drilling and/or milling techniques.

Abstract: A steel strip is formed into a cylinder so that opposite ends of the steel strip face each other, while continuously conveying the steel strip. The opposite ends are melted across the entire thickness by irradiating the opposite ends with a high-energy-density beam while applying a pressure with squeeze rolls. A seam is formed by joining the opposite ends, and excess weld metal of the seam on the outer and inner sides of the obtained welded steel pipe is removed by cutting. A repaired seam is then formed by remelting and solidifying a region on the inner side of the welded steel pipe, the region having a depth of 0.5 mm or more from the surface and a width of double or more the width of the seam, and in addition, the center line of the seam is made to coincide with the center line of the repaired seam.

Abstract: A welded assembly includes a first sheet and a second sheet. The second sheet is disposed over a portion of the first sheet and defines an overlap portion between the first and second sheets. A weld fastening the second sheet to the first sheet in the overlap area connects the second sheet to the first sheet for distributing stress uniformly across a welded portion of the overlap area.

Abstract: A system and device for welding training. In one example, a welding training system includes a display configured to show welding features related to a training welding operation. The system also includes a training workpiece having a substantially transparent weld joint configured to be placed adjacent to the display during the training welding operation. The system includes a processing device coupled to the display and configured to provide welding data relating to the training welding operation to the display. The system also includes a training torch comprising an optical sensor. The training torch is coupled to the processing device and configured to provide the processing device with data from the optical sensor corresponding to a position of the training torch relative to the training workpiece.

Abstract: The invention relates to a device and to an associated method for joining sheet metal parts, each with a flange, by laser, wherein the flanges of the sheet metal parts (2) are joined into one connecting flange. The device has a clamping device (5) for clamping the sheet metal parts (2) to be joined in a main clamping direction running transversely to the connecting flange and a beam guidance system for a laser beam (1). Moreover, the device has a compensation shaft (9) which tracks the laser beam (1) according to a relative movement between the connecting flange and a guidance apparatus.

Abstract: A gap is provided at joining faces of a pair of metal works with an uneven shape when the metal works contact one another for joining. An adhesive agent having a chain-reacting curing reaction function is disposed within the gap. The adhesive agent is cured by an autogenously-generated curing reaction heat caused by an outer energy and an additional heat that is successively generated by the autogenously-generated curing reaction heat within the adhesive agent. A welding portion, where the works contact one another substantially directly, is welded by a laser beam, and the above-described energy for causing the autogenously-generated curing reaction heat for the adhesive agent is provided by the laser beam. Accordingly, a joining structure and method of metal works that can have less limitation in a joining location is provided.

Abstract: Provided herein is a method for securely fixing a connecting element on a metal workpiece by welding involving the formation of locally confined weld points that permits the friction-increasing, play-free, reversible connection of joined workpieces for applications in assembly and transportation. The connecting element includes a metal foil having hard material particles fixed on the joining surfaces by a metallic binding layer. Similarly, a component having a metal workpiece and the connecting element, which is suitable for the connection of workpieces to be joined in machine, plant, and motor vehicle construction, is also provided.

Abstract: A low-power laser and arc hybrid welding method includes the steps of matching laser pulses with arc phases, and inducing compress arcs by the laser pulses. A laser peak pulse is triggered from half of the positive half-wave to half of the negative half-wave of alternating arc current. The sum of laser peak pulse width and laser basic pulse width is equal to the time width from a laser pulse triggered point to a negative half-wave end point of the alternating arc current. A welding device for carrying out the method is disclosed. An angle formed by the axis of a laser beam (1) and the vertical direction is in the range of ?50°-50°. An angle formed by the axis of the laser beam (1) and the axis of an arc torch (2) is in the range of 20°-120°. Arc power density is adjusted minutely in the range of 103-105 by adjusting the alternating arc current, protrusion quantity of an electrode (3) and gas flow velocity of a nozzle. The method and the device can reduce the consumption and save the cost.

Abstract: The present invention provides a laser processing method comprising the steps of attaching a protective tape 25 to a front face 3 of a wafer 1a, irradiating a substrate 15 with laser light L while employing a rear face of the wafer 1a as a laser light entrance surface and locating a light-converging point P within the substrate 15 so as to form a molten processed region 13 due to multiphoton absorption, causing the molten processed region 13 to form a cutting start region 8 inside by a predetermined distance from the laser light entrance surface along a line 5 along which the object is intended to be cut in the wafer 1a, attaching an expandable tape 23 to the rear face 21 of the wafer 1a, and expanding the expandable tape 23 so as to separate a plurality of chip parts 24 produced upon cutting the wafer 1a from the cutting start region 8 acting as a start point from each other.

Abstract: A rolling element guide cage having a ring element which is made from a sheet material and has an axial profiling produced using forming techniques and forms a plurality of successive rolling element guide structures in the circumferential direction. The ring element is composed of at least two flat material ring segments joined to one another successively in the circumferential direction, said segments being joined together in a manufacturing step which precedes the formation of the axial profiling.

Abstract: An inexpensive pulse laser device that outputs a laser pulse capable of welding a transparent member is provided. There is provided a pulse laser device including: a laser light source 1 that outputs a repeated pulse laser; a demultiplexer 2 that demultiplexes the pulse laser output from the laser light source 1 into two pulse lasers; first pulse train generation means 3 that generates a first pulse train by changing at least a peak power and/or a pulse width of one of the two pulse lasers demultiplexed by the demultiplexer 2; and a multiplexer 4 that multiplexes the other of the two pulse lasers demultiplexed by the demultiplexer 2 and the first pulse train generated by the first pulse train generation means 3, in which a pulse laser in which a low-peak power pulse laser is superimposed on a high-peak power ultra-short pulse laser is output.