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Laser Welding patents



      
           
This page is updated frequently with new Laser Welding-related patent applications. Subscribe to the Laser Welding RSS feed to automatically get the update: related Laser RSS feeds. RSS updates for this page: Laser Welding RSS RSS


Method for producing a direct flow aluminium absorber for a solar thermal collector

Apparatus for laser transmission welding, method for laser transmission welding, and a receptacle which is produced…

Method and apparatus for laser welding of two joining members of plastic material

Date/App# patent app List of recent Laser Welding-related patents
08/21/14
20140234650
 Powder metallurgy composite cam sheet and preparation method thereof patent thumbnailPowder metallurgy composite cam sheet and preparation method thereof
According to the invention, there are disclosed a power metallurgy composite cam sheet and a fabrication method thereof. The power metallurgy composite cam sheet is constructed by combining a power metallurgy cam be composited on a surface of a matrix.
08/14/14
20140224243
 Method for producing a direct flow aluminium absorber for a solar thermal collector patent thumbnailMethod for producing a direct flow aluminium absorber for a solar thermal collector
The application relates to a method (100) for producing a direct flow aluminium absorber of a solar thermal collector, the absorber including an absorber plate having at least one tube for a heat transport fluid, and at least one end tube for a heat transport fluid, the at least one end tube being connected to the absorber plate. The method comprises laser welding (130) the at least one end tube to the absorber plate for producing the complete absorber to be coated by at least one layer configured to absorb light..
08/07/14
20140217103
 Apparatus for laser transmission welding, method for laser transmission welding, and a receptacle which is produced thereby and is closed by sheet patent thumbnailApparatus for laser transmission welding, method for laser transmission welding, and a receptacle which is produced thereby and is closed by sheet
A method for producing a receptacle which is closed by a sheet by transmission laser welding, and to an apparatus suitable to carry out same. The method and the apparatus are configured in such a way that a weld seam is formed between the wall structure of the receptacle and the sheet so as to be wider than the end faces of the wall structure..
08/07/14
20140216648
 Method and apparatus for laser welding of two joining members of plastic material patent thumbnailMethod and apparatus for laser welding of two joining members of plastic material
In a method and an apparatus for laser welding of two joining members of plastic material in which a focussed laser beam is emitted into a welding zone in the region of the boundary surfaces of the joining members arranged in such a way as to face one another so as to form a weld seam having a particular seam depth between the joining members, it is provided that the laser power density is modulated during the welding process in a direction of the seam depth in the welding zone.. .
08/07/14
20140216646
 Laser welding method patent thumbnailLaser welding method
A laser welding method includes positioning two resin molded products that are in contact with each other to a laser head having a mirror, and welding a contact surface of the resin molded products by a laser energy by allowing the laser beam to scan the resin molded products along a welding line with the mirror. The contact surface of the resin products has a first part on which the laser beam is incident at a first angle and a second part on which the laser beam is incident at a second angle larger than the first angle.
07/31/14
20140209576
 Use of elevated pressures for reducing cracks in superalloy welding and cladding patent thumbnailUse of elevated pressures for reducing cracks in superalloy welding and cladding
A superalloy component, such as gas turbine blade or vane, is structurally welded by placing the component in an isolation chamber. Inert gas is introduced into the chamber.
07/31/14
20140208858
 High stable fiber fabry-perot pressure sensor with glue-free packing and its fabrication method patent thumbnailHigh stable fiber fabry-perot pressure sensor with glue-free packing and its fabrication method
The present invention relates to a high stable fiber fabry-perot pressure sensor with glue-free packing and its fabrication method. The sensor includes a sensor head, a sensor body with a through-hole in the axial direction and a optical fiber.
07/24/14
20140203420
 Method for producing semiconductor device, and semiconductor device produced using production method patent thumbnailMethod for producing semiconductor device, and semiconductor device produced using production method
A method for producing a semiconductor device includes laser welding to bond an upper terminal and a lower terminal as internal wiring members of the semiconductor device. When the upper terminal is fixed to the lower terminal by the laser welding, a gap between an upper surface of the lower terminal and a lower surface of the upper terminal is equal to or more than 20 μm and equal to or less than 400 μm..
07/17/14
20140197142
 Monolite piston laser welding spatter control patent thumbnailMonolite piston laser welding spatter control
An exemplary system and method for welding a piston assembly includes a piston assembly having a cooling gallery and a loose granulated medium positioned therein. The cooling gallery is formed by a piston body and a cooling gallery ring, and a welder such as a laser welder is positioned proximate the assembly to weld the piston body to the cooling gallery ring.
07/03/14
20140183247
 Welding methods patent thumbnailWelding methods
A visually seamless method of joining a first piece of metal and a second piece of metal is described. The first piece of metal is placed in contact with an edge of the second piece of metal.
06/26/14
20140175068
Remote laser welding
A method of laser welding a first part to a second part including: shining a pointer laser, redirected by a bending mirror, to form a laser beam directed toward the first and second parts to create a laser stripe on the parts; detecting the laser stripe with a camera that is coaxially located and receives an image along an axis defined by the laser beam; processing the image with a camera processor to detect a location of the feature; automatically adjusting a laser welding system to account for the location of the feature; and activating a welding laser, directed through the bending mirror, to weld the first part to the second part.. .
06/12/14
20140163604
Device for implanting electrically isolated occlusion helixes
The invention relates to a device for the implantation of occlusion helixes (3) that can be separated by electrolysis in blood vessels and body cavities, especially aneurysms (12), said device comprising an insertion aid (4), at least one occlusion helix (3) that is distally arranged in relation to the insertion aid (4) and at least one electrolytically corrodible severance element (2), with at least one stabilization helix (5) being arranged between severance element (2) and occlusion helix (3) and said stabilization helix (5) being connected with the occlusion helix (3) by an electrically isolating adhesion layer (7) such that the occlusion helix (3) becomes isolated from the voltage when an electrical voltage is applied to the severance element (2). In this way, the current density in severance element (2) is further increased so that, on the one hand, shorter severance times are achieved and, on the other, the connection between the occlusion helix (3) and one of the stabilization helixes (5) used to stabilize the implant is significantly simplified compared to the known laser welding method according to prior art..
05/29/14
20140149075
Method for detecting flaws in the process for the continuous laser welding of metallic portions
In a method for detecting flaws in continuous laser welding processes, including a sensor measures plasma emission spectrum in a range of wavelengths between λmax and λmin in n channels, each measuring radiation strength emitted in the band centred at wavelength λi (1≦i≦n) and width Δλi. Deviation detection is based upon calculating intensity relationships of signals measured at specific wavelengths and in comparison with pre-determined threshold values.
05/29/14
20140144016
Method and device for connecting an electrical conductor to an electrical contact part
In a method for connecting an electrical conductor to an electrical contact part, wherein the contact part has deformable legs the legs are deformed by means of a bending die in such a way that the legs press the conductor with the contact part in a force-locked manner, wherein the contact part is acted upon in so that at least the legs are materially connected to each other. A device includes a bending die for connecting an electrical conductor to an electrical contact part, wherein the contact part has deformable legs and the bending die is designed to deform the legs in such a way that the legs press the conductor with the contact part in a force-locked manner, and wherein the device also includes a laser welding device designed to act on the contact part so that at least the legs are materially connected to each other..
05/15/14
20140132028
Vehicular door frame having vertical sash
A vertical sash of a vehicular door frame includes a channel member defining a glass run accommodation space and an inboard-side member having a pocket portion disposed on the inboard side of the channel member. An inboard-side opening edge portion of the channel member and a pocket edge portion of the inboard-side member are joined together.
05/15/14
20140131181
Method and apparatus pertaining to keypad frets
A keypad comprises a keypad frame and a metal spacer disposed on a backside thereof. At least one metal fret having a plurality of metal standoffs is disposed amongst the corresponding keycaps.
05/08/14
20140126167
Using millisecond pulsed laser welding in mems packaging
A new packaging method for a wide range of mems for application on both the wafer and device scale. Titanium is used as the packaging material and both silicon and titanium mems devices are integrated on to a titanium substrate.
05/08/14
20140124489
Hybrid welding method of laser welding and arc welding for t-joint
A hybrid welding method of laser welding and arc welding for a t-joint in which a rib as one member to be welded abuts orthogonally onto a surface of a flange as other member to be welded includes forming a groove portion on a lateral surface of the rib that is an abutting part between the rib and the flange forming the t-joint; forming a flat part at a bottom part of the groove portion formed in the abutting part between the rib and the flange; and performing a hybrid welding using both laser welding in which the groove portion a with this flat part therein is irradiated with a laser beam, and arc welding, to form weld beads of weld metal in the groove portion a, so that welding together the flange and the rib forming the t-joint.. .
05/08/14
20140124488
Method of laser welding
A method of laser welding is disclosed. The method may be performed after an upper steel plate and a lower steel plate are overlapped.
05/08/14
20140124486
Laser welding assembly and method
A hybrid laser arc welding assembly including a gas metal arc welding torch and a laser arc welding laser head. The torch and laser head are disposed adjacent one another and aimed at targets of a pair of work pieces spaced from one another such that the melted material produced by the torch overlaps with the melted material produced by the laser head, and therefore, the torch and laser head combine to create a hybrid laser arc weld to join the work pieces.
05/08/14
20140124481
Method of manufacturing laser welded steel pipe
A method of manufacturing a laser welded steel pipe by forming a steel strip into a cylindrical open pipe and performing laser welding on edges that includes: emitting two laser beams along the edges from an upper surface side of the open pipe, the two laser beams being transmitted through different optical fibers with in-focus spot diameters exceeding 0.3 mm; emitting leading and trailing laser beams each inclined toward a direction in which welding proceeds at an incident angle with respect to a direction perpendicular to an upper surface of the open pipe; setting the incident angle of the leading laser beam to be larger than the incident angle of the trailing laser beam; and setting a gap between a center point of the leading laser beam and a center point of the trailing laser beam on a back surface of the open pipe to 1 mm or larger.. .
05/08/14
20140123890
Single-crystal welding of directionally compacted materials
A process for welding directionally solidified metallic materials is presented. Process parameters are targeted selected with respect to laser welding, advancement, laser power beam diameter and powder mass flow.
04/24/14
20140113116
Attaching window assembly using optical welding
The specification and drawings present a new apparatus and method for joining a window assembly (e.g., a glass window assembly) in electronic devices using optical/laser welding. A window assembly, transparent to an optical beam, may comprise an optical window such as glass window with a laminated layer (e.g., made of plastic) glued to a backside of the optical window and a back print ink layer between portions of the optical window and of the laminated layer.
04/17/14
20140103635
Chromophores with perfluoroalkyl substituents
The present invention relates to specific metal complexes of dithiolenes with perfluoroalkyl substituted imidazolidine-2-chalcogenone-4,5-dithione ligands, a process for their preparation and their use as colourless ir absorbers, for optical filters application; especially for plasma display panels, or for laser welding of plastics. The compounds may be used in compositions for inks, paints and plastics, especially in a wide variety of printing systems and are particularly well-suited for security applications..
03/27/14
20140087225
High-capacity cylindrical lithium ion battery and production method thereof
The invention discloses a high-capacity cylindrical lithium ion battery. Tab-position end face is shaped; a high frequency oscillation and pressure are applied on to make the foil bodies softened in the scope of 0.1-6.5 mm.
03/20/14
20140076865
Laser welding method
A laser welding method includes emitting two laser beams along a weld line from an upper surface side of a workpiece, the two laser beams being transmitted through different optical fibers and having in-focus spot diameters of 0.3 mm or larger; emitting the laser beams such that a leading laser beam of the two laser beams and a trailing laser beam of the two laser beams are each inclined toward a direction in which welding proceeds at an incident angle with respect to a direction perpendicular to an upper surface of the workpiece, the leading laser beam being ahead of the trailing laser beam on the upper surface of the workpiece in the direction in which welding proceeds, the trailing laser beam being behind the leading laser beam; and setting the incident angle of the leading laser beam to be larger than the incident angle of the trailing laser beam.. .
03/13/14
20140069893
Automated superalloy laser cladding with 3d imaging weld path control
Superalloy components, such as service-degraded turbine blades and vanes, are clad by laser beam welding. The welding/cladding path, including cladding application profile, is determined by prior, preferably real time, non-contact 3d dimensional scanning of the component and comparison of the acquired dimensional scan data with specification dimensional data for the component.
02/27/14
20140057346
Culture plate with fiber-coated bottom surface
A cell culture plate that includes an upper portion having at least one discrete chamber with a top edge and a bottom edge; a substantially flat lower portion, wherein at least one layer of polymer fibers has been deposited on the upper surface of the lower portion, and wherein the at least one layer of polymer fibers is conducive to the growth of biological cells thereon; and wherein the bottom edge of the at least one discrete chamber is hermetically sealed to the fiber-coated upper surface of the lower portion to form a well using adhesives, laser welding, or ultrasonic welding.. .
02/20/14
20140048518
Laser welding apparatus and laser welding method
A laser welding apparatus generates laser by a laser oscillator, converges the laser by a condenser lens, and applies the laser to an upper sheet and a lower sheet superposed together so as to weld the upper sheet and the lower sheet to each other. According to this apparatus, by laser irradiation, a melt pool y is formed in the upper sheet and the lower sheet superposed together.
02/13/14
20140042892
Spark plug having firing pad
A spark plug has a firing pad attached to a center electrode or to a ground electrode. The firing pad is attached via laser welding and has a sparking surface with an overall fused area and an unfused area.
02/13/14
20140042740
Methods and systems for cladding surfaces of components using hot wire laser welding
A system and method of joining workpieces is provided where a clad layer is deposited in between the components and a weld bead is providing such that it contacts the clad layer. The system and method provided minimizes the heat input into the components by using the clad layers to provide the joining strength between the pipe components..
02/13/14
20140042131
Laser welding consumable
A system and method for heating a filler wire (consumable) using a laser in brazing, cladding, building up, filling, overlaying, welding, and joining applications. The filler wire includes a first surface that absorbs energy from a laser beam and a second surface separated from said first surface by a thickness t that is in a range of 0.010 inch to 0.045 inch.
02/06/14
20140034623
Switchable special effect substances
Wherein these compounds are irradiated with electromagnetic radiation of wavelength from 300 to 750 nm. The use of compounds of the general formula (i) or (ii) for marking materials, for example paper or mineral oil, and use of compounds of the general formula (i) or (ii) for causing a color change.
02/06/14
20140034620
Clamping device and laser welding apparatus using the same
A clamping device and a laser welding apparatus using the same are disclosed. The clamping device may include: an upper clamping link mounted rotatably upwardly or downwardly by a hinge shaft; a lower clamping link mounted rotatably in an opposite direction of the upper clamping link by the hinge shaft and corresponding to the upper clamping link; at least two upper rollers rotatably mounted at the upper clamping link; at least two lower rollers rotatably mounted at the lower clamping link, corresponding to the upper roller, and fixing a welding object together with the upper rollers; and an operating cylinder configured to rotate the upper clamping link and the lower clamping link in opposite directions to each other..
12/26/13
20130341312
Method for eye-safe laser welding
A welding tool is configured with a housing enclosing a fiber laser system which is operative to produce a weld seam for connecting two workpieces. The fiber laser system includes a focusing optic configured to focus the output beam of the system so that it propagates through an elongated slit formed in the bottom of the housing.
12/19/13
20130336643
Line connector for media lines
A line connector having a connector piece with at least one junction portion for junction connection to a media line or to an assembly, a transitional portion contiguous to the junction portion, and a flow duct. In at least the region of the transitional portion, an electrical heating element for the media line is provided in an arrangement at least partially surrounding the flow duct.
12/12/13
20130330595
Bus bar having novel structure and battery module including the same
Disclosed herein is a bus bar for electrically connecting electrode leads of unit modules or battery cells (unit cells) in a battery module through a coupling method employing laser welding. Each of the electrode leads and the bus bar has a plate-shaped structure and a protrusion projecting toward the electrode leads is formed on the bus bar at a portion thereof, which is to be welded to the electrode leads through laser irradiation, to allow the portion of the bus bar, which is to be welded to the electrode leads, to be brought into close contact with the electrode leads..
12/12/13
20130326876
Method for repairing compressor or turbine drums
During the repair of welded two-stage or multi-stage compressor or turbine drums, which after welding are machined in the weld area down to a height a, a first material coating with a height b extending on both sides from the root face is applied to the machined weld area, and a second and lesser material coating is applied by laser welding to the area of plasma pockets formed on the intact rotor disk, with the sum of the heights a and b corresponding to an original height c in the weld area prior to its final machining. Then the defective rotor disk is detached in the root face and through the middle of the first material coating, and after that a new rotor disk already validated in the new construction with the root face validated in the new construction is welded on using appropriate welding parameters, and the weld area is machined, in line with the parameters already used for the new construction, down to the original height a.
11/28/13
20130313234
Method for manufacturing inspection probe
This is to provide a method for manufacturing an inspection probe in which qualities of a bonded portion of the inspection probe constituted by bonding wire rods including different metals are improved. The method for manufacturing an inspection probe is configured by bonding a first wire rod 110 and a second wire rod 120, at least one of which has an inspection contact portion at a tip thereof, performing laser welding by irradiating laser beam to outer circumferential surfaces of the first wire rod and the second wire rod with different energy quantities, and then, polishing the outer circumferential surfaces..
11/14/13
20130298368
Methods for manufacturing, modifying, and retrofitting a gas turbine injector
A method for modifying a gas turbine injector is disclosed herein. The method for modifying a gas turbine injector includes removing a first tubular member from the gas turbine injector, replacing the first tubular member with a second tubular member, the second tubular member having a center axis and including a circumferential lip extending radially from the center axis, aiming a laser beam at the circumferential lip so that the laser beam forms an acute angle with the center axis, and, laser welding the second tubular member to the gas turbine injector at the acute angle, the laser welding forming a resultant weld between the second tubular member and the gas turbine injector, and such that at least a portion of the circumferential lip is consumed to form at least a portion of the resultant weld..
10/31/13
20130285221
Semiconductor device and method of manufacturing same
A semiconductor device has a heat dissipating base; a patterned insulating substrate attached to the heat dissipating base with a solder therebetween; a semiconductor chip attached to a conductive pattern of the patterned insulating substrate with a solder therebetween; a first conductor attached to the semiconductor chip with a solder therebetween; a resin case attached to the heat dissipating base with an adhesive; and a second conductor attached to the first conductor by laser welding. The second conductor formed by rolling has stripe-shaped rolling traces formed on a surface thereof in a rolling direction and is disposed on the first conductor such that the rolling traces are arranged in a same direction..
10/24/13
20130276776
Method for producing an absorber for a solar collector, and a solar collector
A method for producing a solar heat absorber for a solar collector, the solar heat absorber having a fluid inlet and a fluid outlet. The method includes the steps of providing a first and a second substantially flat metal plate, laser welding the plates together at least along a perimeter of the plates, providing at least a circumferential weld while pressing the plates together, placing the welded plates in a press that provides its pressure at the weld or welds and the press applying a pressure of at least 200 tons per m2 of absorber, and then providing a fluid under a pressure to the absorber via at least one of the fluid inlet and the fluid outlet..
10/24/13
20130276303
Method of manufacturing impeller for centrifugal blower
A resinous blade-supporting rotator is prepared to rotate around a rotational axis. The blade-supporting rotator has rotator weld parts including rotator weld surfaces formed on one side surface in the axial direction.
10/17/13
20130269871
Laser welding plastic parts with two degrees of freedom
The invention relates to a joining device (10, 20) and to a method for operating a joining device (10, 20), wherein a component (12, 22) comprising at least two parts is processed by means of an energy beam in such a way that the at least two parts are joined in a joining region by means of the energy beam, several components (12, 22) being fed and processed in succession by means of a conveying device (11, 21), characterized in that the energy beam by means of which the particular component (12, 22) is processed is moved along the joining region in dependence on the motion of the component (12, 22).. .
10/03/13
20130258503
Optical lens assembly and a laser welding method used for the same
The present invention provides an optical lens assembly, comprising: at least an optical lens; a lens barrel within which the at least one optical lens is placed; and a retainer placed within the lens barrel; wherein the optical lens is arranged such that an optical axis thereof is aligned with a central axis of the lens barrel; and wherein the retainer is arranged such that a peripheral surface thereof is in contact with an inner wall of the lens barrel and a bottom surface thereof is pressed against one surface of the optical lens. A laser beam is used to irradiate the peripheral surface of the retainer to cause a temperature rise at an area where the retainer is in contact with the lens barrel to reach a welding temperature, thereby welding the retainer to an inner side of the lens barrel..
10/03/13
20130256283
Welding method, welding device and composite part
A welding method, e.g., a laser welding method, for connecting a first workpiece to a second workpiece, includes a first method step in which the first and the second workpiece are brought into contact with each other; a second method step in which a desired welding distortion is ascertained; and a third method step in which the first and the second workpiece are welded to each other as a function of the welding distortion, and/or in which the first and the second workpiece are rotated about an axis of rotation at a rotational speed, the first and the second workpiece being welded to each other as a function of the rotational speed.. .
09/19/13
20130240493
Laser welding method and laser welded member for endoscope
In a laser welding method for an endoscope, when the thickness of the plate of an outer cylindrical member is set as h, the thickness of the plate of an inner coil-shaped member is set as hc, the maximum welding energy of laser welding that does not change the inner and outer diameters of the outer cylindrical member in the place where the inner coil-shaped member is not placed inside the outer cylindrical member is set as e1, and the minimum welding energy that enables the outer cylindrical member to be fixed by welding to the inner coil-shaped member is set as e2, the spiral weld beads do not overlap, the welding depth h from the outer cylindrical member to the inner coil-shaped member holds true h<h<h+hc, the welding energy e satisfies the expression of e2≦e≦e1.. .
09/12/13
20130234312
Semiconductor device and manufacturing method thereof
Terminal assembly portions, lying on a front surface side of a case, are aligned in a left-right direction in a portion raised from a bottom of the case so that opening faces of the terminal assembly portions are positioned above circuit formation regions. Wiring terminal plates are led out into the terminal assembly portions, and disposed adjacent to each other.
09/12/13
20130233836
Method & apparatus for laser welding with mixed gas plasma suppression
Machinery and process are disclosed for laser welding. A beam is generated and focused on a discrete work surface, with a distinctive nozzle provided for delivering plasma suppression gas toward the surface.
09/05/13
20130228322
Brazing method and brazed structure
In this brazing method, which brazes an insulating substrate and a top plate that configure an hv inverter cooler, the insulating substrate is disposed on the top plate with a brazing material layer therebetween, and then, by means of laser irradiation, laser welding is performed at an arbitrary plurality of positions at the joining section between the top plate and the insulating substrate, thus provisionally affixing the insulating substrate to the top plate. Thereafter, by means of heating and melting the brazing material layer, the insulating substrate is brazed onto the top plate with the plurality of laser-welded positions as the brazing start points.
08/29/13
20130221664
Laser welding structure of intank filter for motor vehicle
The present invention includes an intank filter that is a component of a fuel pump module which is installed within a fuel tank of a motor vehicle to supply fuel into an engine, and more particularly, to a laser welding structure of an intank filter for a motor vehicle, for joining the intank filter through laser welding.. .
08/22/13
20130217315
Segmented profiled wheel and method for making same
A segmented profiled wheel for grinding a glass or non-metallic workpiece including a segmented abrasive portion formed of a plurality of abrasive segments that are attached to a core of the wheel and method for making same. The plurality of abrasive segments have a cutting surface profile and sufficient abrasive grit to contour and grind the workpiece.
08/22/13
20130213942
Method and system for laser welding and cladding with multiple consumables
A system and method to provide a welding or cladding operation is provided which using multiple consumables in a single operation, where the overall heat input is reduced. Each of the consumables can be deposited into a single molten puddle, where the total energy input to the puddle from trailing consumables is less than that of a leading consumable.
08/08/13
20130202951
Electrochemical device
An electrochemical device which is free from deterioration of properties due to a process of joining a rigid case and a conductive lid is provided. A welded part pp of a conductive lid 12 and a welded frame member 11d are joined each other by laser welding.
07/18/13
20130180965
Laser welding method
A laser welding method basically includes providing a robot that is moveably in accordance with predetermined movement data, and controlling the controlling a laser beam emitting section of the robot to emit a laser beam onto a predetermined irradiation position of a workpiece to conduct welding. The laser welding method further includes: measuring a current movement position of the robot with respect to a movement position specified in the predetermined movement data; operating of the robot to change the current movement position of the robot to a prescribed position based on the predetermined movement data; and adjusting a laser emission direction by controlling an emission changing section of the laser beam emitting section based on the current movement position of the robot and the predetermined movement data such that a laser beam is emitted from the laser beam emitting section and strikes the predetermined irradiation position of the workpiece..
07/04/13
20130168371
Laser welding method
At a plurality of welding positions in an overlap portion of a plurality of members including a high-tensile steel sheet whose carbon content is 0.07 weight % or more, first beads (31 to 36) in a closed loop shape or a closed loop-like shape and second beads (41 to 46) in a closed loop shape or a closed loop-like shape on inner sides of the first bead (31 to 36) are formed by remote laser welding for joining. At this time, there are a procedure for successively forming the plural first beads (31 to 36) and a procedure for successively forming the plural second beads (41 to 46) for the plural formed first beads (31 to 36), and in both of the cases, the beads are each formed at a position except the closest welding position among the plural welding positions.
07/04/13
20130168364
Go/no go ball feeler gauge for parts checking jigs and method
A go/no go ball feeler gauge includes a ball that is laser-welded to a rod. The rod is preferably cut utilizing an edm process to provide a flat end to which the metal ball is laser-welded.
06/27/13
20130164857
Measuring cassette and measuring device for the detection of target molecules in a liquid sample by measurement of fluorescence emission after excitation in an evanescent field
An interchangeable disposable measuring cassette for insertion into a measuring apparatus for detecting target molecules in a liquid sample by measuring fluorescence emission has a flow measurement cell in which an excitation radiation provided by the measuring apparatus produces an evanescent field in the liquid sample beyond a boundary layer for the liquid sample and the measurement cell. To be better able to ensure that no sample liquid can cross from the measurement cell into the measuring apparatus, the measuring cassette includes a body including an optically transparent material and a base in contact with the underside of the body.
06/20/13
20130153125
Joining sheets to form a belt
A method for joining a first sheet (10) to a second sheet (11) includes providing a first rigid plate (6); providing a gas absorbing layer on the first rigid plate; positioning the first sheet, the first sheet has at least a first layer (52) and a second layer (54), on the gas absorbing layer (8); positioning the second sheet, wherein the second sheet has at least a first layer and a second layer, on the gas absorbing layer; wherein an edge of the of the first sheet abuts an edge of the second sheet; placing a second rigid plate on top of the first and second sheet; wherein the second rigid plate is transparent; applying pressure to the first sheet edge and second sheet edge; and laser welding the edge of the first sheet to the edge of the second sheet with a first laser through the second rigid plate.. .
06/20/13
20130152383
Moisture resistant layered sleeve heater and method of manufacture thereof
A method of forming a layered heater assembly includes: forming a plurality of layers onto a substrate, the plurality of layers including a resistive element layer; forming electrical terminations in contact with the resistive element layer; securing a protective cover over the layers using a laser welding process, wherein edges of the protective cover are welded circumferentially around raised end portions of the substrate and welded longitudinally along a slotted portion of the substrate; securing a pair of lead wires to the electrical terminations; and securing a lead cap assembly around the pair of lead wires and to the protective cover using a laser welding process.. .
05/30/13
20130136940
Welding system, welding process, and welded article
A welding system, welding process and welded article are disclosed. The system includes a laser welding apparatus, a gmaw apparatus, and a gtaw apparatus.
05/16/13
20130119025
Method of laser welding
The method includes: a stitch welding step where a laser beam of focal region is irradiated along a welding portion of the upper steel sheet and the lower steel sheet such that a molten slot is formed at the upper steel sheet along the welding portion and an heat expansion portion is formed at the lower steel sheet along the welding portion by thermal conduction; and a pattern welding step where the laser beam of focal region is irradiated along the welding portion with a predetermined pattern such that an edge of the molten slot formed at the upper steel sheet is melted together with the heat expansion portion of the lower steel sheet so as to form a molten pool.. .
04/25/13
20130100979
High-power laser focusing apparatus with pressurized housing and aerodynamic window
A high-powered laser beam focusing apparatus for use in laser welding applications that includes a laser having a beam delivery fiber for generating a laser beam and a housing adapted to receive the beam delivery fiber. The housing further includes a first internal chamber adapted to receive a flow of pressurized gas; a second internal chamber; and an aerodynamic window positioned between the first chamber and the second chamber..
04/25/13
20130098547
Method of bonding polymer film, and method of producing polarizing film
An object of the present invention is to provide high quality bonding of a polymer film such as a polyvinyl alcohol resin film while use of a light absorbing agent is suppressed. A method of bonding a polymer film, including contacting a surface of a polymer film with a surface of a material to be bonded, and laser welding the interface between the surface of the polymer film and the surface of the material to be bonded, wherein water is absorbed at least in the interface side of the polymer film, the interface side is irradiated with laser light, and the laser light is absorbed by the absorbed water to perform the laser welding..
04/11/13
20130087540
Laser-based lap welding of sheet metal components using laser induced protuberances to control gap
A method for laser welding first and second components is provided including moving a laser beam across a portion of a surface of the first component at a speed sufficient to generate protuberances on the surface of the first component by means of a humping effect, juxtaposing said first and second components such that opposed surfaces of the first and second components are separated by said protuberances on the surface of the first component, and laser welding said first and second components by scanning the laser beam in a region in which said surfaces are separated by said protuberances. The height of the protuberances can be controlled by controlling a scanning speed of the laser beam..
04/11/13
20130086781
Industrial fabric including spirally wound material strips with reinforcement
An industrial fabric such as an endless belt or sleeve for use in the production of nonwovens, and a method of making thereof are disclosed. The industrial fabric is produced by spirally winding strips of polymeric material, such as an industrial strapping or ribbon material, and joining the adjoining sides of the strips of material using ultrasonic welding or laser welding techniques.
04/04/13
20130081772
Industrial fabric including spirally wound material strips with reinforcement
An industrial fabric, belt or sleeve and a method of making the fabric, belt or sleeve are disclosed. The industrial fabric, belt or sleeve is produced by spirally winding strips of polymeric material, such as an industrial strapping or ribbon material, and joining the adjoining sides of the strips of material using ultrasonic welding or laser welding techniques.
03/28/13
20130074314
Panel manufacturing method
An object of the present invention is to provide a panel manufacturing method capable of easily adapting to manufacture of panels, such as door panels, of different sizes. The present invention provides a panel manufacturing method for a panel made of an outer plate integrated with an inner plate.
03/21/13
20130068096
Laser welded piston assembly
An exemplary piston may include a piston body having radially inner and outer body mating surfaces. The piston may further include a cooling gallery ring cooperating with the piston body to form a continuous upper combustion bowl surface and a cooling gallery.
03/14/13
20130062325
Computer housing
A visually seamless method of joining a first piece of metal and a second piece of metal is described. The first piece of metal is placed in contact with an edge of the second piece of metal.
03/14/13
20130062324
Method of verifying seam quality during a laser welding process
This disclosure relates to verifying a seam quality during a laser welding process. In certain aspects, a method includes detecting, in a spatially resolved manner, a first amount of radiation emerging from a workpiece in a first wavelength range, determining a first geometric parameter of a seam characteristic based on the first amount of radiation detected in the first wavelength range, detecting, in a spatially resolved manner, a second amount of radiation emerging from the workpiece in a second wavelength range, the second wavelength range being different than the first wavelength range, determining a second geometric parameter of the seam characteristic based on the second amount of radiation detected in the second wavelength range, comparing the first and second geometric parameters to respective reference values or to respective tolerance intervals to provide respective comparison results, and logically combining the respective comparison results to verify the seam quality..


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Laser Welding topics: Laser Welding, Semiconductor, Semiconductor Device, Irradiation, Degrees Of Freedom, Lens Barrel, Consumable, Fluorescence

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