With Fluid Supply Patents (Class 219/121.84)
  • Patent number: 10335900
    Abstract: This disclosure provides a shield for use in a liquid guided laser system and related method of use. The shield comprises a rigid body with a target facing surface. The rigid body defines a through hole with a diameter that accommodates a liquid guided laser path. The rigid body has a thickness that defines a length of the liquid guided laser path through the rigid body. The thickness of the rigid body is at least twice the diameter of the through hole. The rigid body is positioned in the liquid guided laser path of the liquid guided laser system between a discharge nozzle of the liquid guided laser system and a target.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: July 2, 2019
    Assignee: General Electric Company
    Inventor: Zhaoli Hu
  • Patent number: 10307864
    Abstract: A gas flow can be provided together with a liquid jet guided laser beam to remove accumulated liquid on the processing surface. The gas flow can have minimum interference with the liquid jet guided laser beam, while functions to blow away liquid generated by the liquid jet. Keeping the surface free from accumulated liquid can improve the efficiency of the liquid jet guided laser processing.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: June 4, 2019
    Assignee: Avonisys AG
    Inventors: Jens Guenter Gaebelein, Jeroen Hribar
  • Patent number: 10112261
    Abstract: A powder convergence improves without varying the flow velocity and powder density of a powder flow. A processing nozzle includes an inner cone including a beam path that passes light from a light source, an outer cone arranged outside the inner cone, a fluid ejection channel formed by a gap between the inner cone and the outer cone, and including an ejection port that opens toward a process surface, and a fluid guide channel having a flow inlet for a fluid. The fluid guide channel guides the fluid toward the fluid ejection channel in a direction away from the beam path.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: October 30, 2018
    Assignee: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING
    Inventors: Hiroshi Ohno, Satoshi Tsuno, Yuji Sasaki, Go Obara, Naotada Okada
  • Patent number: 9988718
    Abstract: A material deposition system and method for cooling a component after material deposition. The method of deposition and cooling comprising a platform, a deposition head, and a cooling mechanism. The platform adapted to support a component for the addition of material. The deposition head including a material depositor configured to deposit material on a surface of a component supported on the platform an and an energy source configured to energize material deposited onto a surface of a component supported on the platform to bond the material to the component. The cooling system including bristles.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: June 5, 2018
    Assignee: Rolls-Royce Corporation
    Inventors: Kong Ma, Quinlan Y. Shuck, Jacque S. Bader
  • Patent number: 9945253
    Abstract: A method is provided for operating a laser system. During an embodiment of this method, inert gas is directed against an object within a cavity of a collection device. An aperture is formed in the object by ablating the object with a laser beam that travels within the cavity and to the object. Byproducts of the ablation are removed from the cavity. During another embodiment of the method, inert gas is pooled against an object and a gas curtain is provided proximate a lens. The object is cut using a laser beam which travels from the lens, through the gas curtain and the pooled inert gas, to the object. Fumes and/or particulates produced by the formation are directed away from the laser beam.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: April 17, 2018
    Assignee: Rohr, Inc.
    Inventors: Manuel B. Gutierrez, Jr., Charles Novak
  • Patent number: 9896944
    Abstract: A process and apparatus for solid freeform fabrication and repair of components on existing bodies (such as turbine blades), the innovative process and apparatus as well as the resultant product having the following advantages: a) Can build on existing 3-D surfaces. Not limited to horizontal flat surfaces, b) Usable for metals that are difficult to weld. c) Robust process that is adaptable to new damage modes. d) No shielding of the melt pool by inert gas is needed. e) Wide range of powder sizes.
    Type: Grant
    Filed: April 18, 2014
    Date of Patent: February 20, 2018
    Assignee: SIEMENS ENERGY, INC.
    Inventors: Ahmed Kamel, Gerald J. Bruck, Dhafer Jouini
  • Patent number: 9656346
    Abstract: Laser device for tempering metal-containing or metal-oxide-containing coatings on large-area glass substrates having at least: a) at least one laser source, b) at least two bridges spanning a conveyor belt with the glass substrate, wherein each bridge contains a plurality of optical arrangements, which are alternatingly arranged on the bridges, each optical arrangement generates a laser line, and the laser lines of all optical arrangements together cover the entire width of the glass substrate.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: May 23, 2017
    Assignee: SAINT-GOBAIN GLASS FRANCE
    Inventor: Li-Ya Yeh
  • Patent number: 9387554
    Abstract: A laser processing apparatus including a processing head for applying a laser beam to a workpiece. The processing head includes a focusing lens and a collecting unit provided between the focusing lens and the workpiece for collecting debris generated by the application of the laser beam focused by the focusing lens to the workpiece. The collecting unit includes a suction source for sucking the debris and a suction line having one end connected to the suction source and the other end opening to the front side of the workpiece. The laser processing apparatus further includes a cleaning liquid supplying unit for supplying a cleaning liquid to the suction line.
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: July 12, 2016
    Assignee: Disco Corporation
    Inventor: Michael Gadd
  • Patent number: 9242309
    Abstract: There is provided high power laser tools and laser heads that utilize total internal reflection (“TIR”) structures to direct the laser beam along a laser beam path within the TIR structure. The TIR structures may be a TIR prism having its hypotenuse as a TIR surface.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: January 26, 2016
    Assignee: FORO ENERGY INC.
    Inventors: Mark S. Zediker, Brian O. Faircloth, Sharath K. Kolachalam, Daryl L. Grubb
  • Patent number: 9223091
    Abstract: A method and apparatus for controlled displacement, rotation and deformation of parts of a fiber optic collimator so as to provide multiple degrees of adjustment freedom that are decoupled one from another, for adjusting the path of a light beam, comprising: an output elongate hollow node for passing a light beam therethrough and towards a lens, and an elongate hollow base node having separate top and bottom parts connected to each other by opposed ends of a plurality of flexible rods that restrict the relative movement between the top and bottom parts of the base node to substantially only translational parallel movement. Opposed portions of the top and bottom parts of the base node each include a respective screw and an opposed slanted surface, which upon interaction, develop a shearing force which is applied to the top and bottom parts of the base node and cause a translational parallel relative movement therebetween.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: December 29, 2015
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Leonid A. Beresnev
  • Patent number: 9126288
    Abstract: A laser cutting nozzle configured such that a laser beam is irradiated through a nozzle hole formed in a nozzle main body from an opening of the nozzle hole, and an assist gas surrounding the laser beam is emitted. The nozzle hole includes a first control flow path, a second control flow path, and a third control flow path formed in a coaxial cylindrical shape, in sequence from upstream toward downstream in a flow direction of the assist gas. If a diameter of the first control flow path is ?A, a diameter of the second control flow path is ?B, and a diameter of the third control flow path is ?C, an equation ?A<?C<?B is satisfied.
    Type: Grant
    Filed: February 21, 2011
    Date of Patent: September 8, 2015
    Assignee: NISSAN TANAKA CORPORATION
    Inventors: Masayuki Nagahori, Shinji Numata, Masafumi Itoyama
  • Patent number: 9125244
    Abstract: An induction cooktop appliance includes a housing having an air intake opening and an air exhaust opening, the air intake opening and the air exhaust opening defining an air cooling circulation path, an induction cooktop disposed on top of the housing, electronics for the induction cooktop disposed within the housing, and a vent tube having a first end and a second end, the vent tube being disposed in the cooling air circulation path and configured to segregate air entering the air intake opening from air exiting the air exhaust opening.
    Type: Grant
    Filed: June 2, 2011
    Date of Patent: September 1, 2015
    Assignee: General Electric Company
    Inventors: Howard James Oagley, Mark Davis Johnson, Daniel Stephen Frazer, David Joseph Najewicz
  • Patent number: 9085049
    Abstract: A method for manufacturing a semiconductor device is provided. The method contains steps of providing the semiconductor device including a working area; directing a medium flow onto the working area; configuring a lens in contact with the medium flow; and directing a laser beam to the working area through the lens and the medium flow. A laser processing for manufacturing a semiconductor device is also provided.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: July 21, 2015
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chien-Ling Hwang, Bor-Ping Jang, Yi-Li Hsiao, Hsin-Hung Liao, Chung-Shi Liu
  • Patent number: 9039887
    Abstract: An example component finishing method includes immersing a surface of a component within a fluid during a finishing process. The method heats fluid near the surface during the finishing to create a convection current within the fluid that carries a byproduct of the finishing away from the surface.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: May 26, 2015
    Assignee: United Technologies Corporation
    Inventor: John P. Rizzo, Jr.
  • Patent number: 9029809
    Abstract: A movable microchamber system with a gas curtain is disclosed. The microchamber system has a top member with a light-access feature and a stage assembly that supports a substrate to be processed. The stage assembly is disposed relative to the top member to define a microchamber and a peripheral microchamber gap. An inert gas is flowed into the peripheral microchamber gap to form the gas curtain just outside of the microchamber. The gas curtain substantially prevents reactive gas in the ambient environment from entering the microchamber when the stage assembly moves relative to the top member.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: May 12, 2015
    Assignee: Ultratech, Inc.
    Inventors: Digby Pun, Ali Shajii, Andrew B. Cowe, Raymond Ellis, James T. McWhirter
  • Patent number: 9029730
    Abstract: Disclosed is a laser peening apparatus, including: a liquid holding head to shape and hold liquid to trap plasma on a local surface of a workpiece; and a laser irradiation head to irradiate the surface with laser through the liquid held in the liquid holding head.
    Type: Grant
    Filed: October 1, 2007
    Date of Patent: May 12, 2015
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventors: Takafumi Adachi, Toshimichi Ogisu
  • Patent number: 9018560
    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.
    Type: Grant
    Filed: February 20, 2012
    Date of Patent: April 28, 2015
    Assignee: General Electric Company
    Inventors: Michael Gary Krizansky, Gary R. Peters, Hai Sam
  • Publication number: 20150096964
    Abstract: A wafer processing method includes a wafer unit forming step of supporting a wafer through an adhesive tape to an annular frame to thereby form a wafer unit, a wafer unit holding step of holding the wafer through the adhesive tape on a holding surface of a chuck table under suction, a processing step of applying a laser beam to the wafer held on the chuck table to thereby form a modified layer inside the wafer, an unloading step of unloading the wafer unit from the chuck table, and a dividing step of dividing the wafer along the modified layer as a division start point. The wafer processing method further includes a close contact canceling step of blowing a fluid from the holding surface against the adhesive tape after performing the processing step to thereby cancel the close contact between the adhesive tape and the holding surface.
    Type: Application
    Filed: October 1, 2014
    Publication date: April 9, 2015
    Inventors: Tsutomu Maeda, Satoshi Genda
  • Patent number: 8993923
    Abstract: A system for manufacturing an airfoil includes a laser beam and a first fluid column surrounding the laser beam to create a confined laser beam directed at the airfoil. A liquid flowing inside the airfoil disrupts the first fluid column inside the airfoil. A method for manufacturing an airfoil includes confining a laser beam inside a first fluid column to create a confined laser beam and directing the confined laser beam at a surface of the airfoil. The method further includes creating a hole through the surface of the airfoil with the confined laser beam, flowing a liquid inside the airfoil, and disrupting the first fluid column with the liquid flowing inside the airfoil.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: March 31, 2015
    Assignee: General Electric Company
    Inventors: Zhaoli Hu, Douglas Anthony Serieno, Sharon Trombly Swede, Jane Marie Lipkin
  • Patent number: 8987634
    Abstract: This invention relates to a method for determining misalignment of a powder feed nozzle and a laser beam. The method includes forming a test structure on a workpiece in at least two different directions by deposition laser welding with powder at substantially constant deposition parameters without relative rotation between a powder feed nozzle and a laser beam, measuring heights and/or wall thicknesses of the test structure along the test structure, and determining a direction and/or an amount of misalignment of the powder feed nozzle relative to the laser beam based on the measured heights and/or wall thicknesses.
    Type: Grant
    Filed: May 11, 2011
    Date of Patent: March 24, 2015
    Assignee: TRUMPF Laser- und Systemtechnik GmbH
    Inventors: Markus Pieger, Sebastian Kaufmann, Philip Anthony Carroll
  • Patent number: 8975557
    Abstract: A method for treating a surface is disclosed. According to some aspects, the method includes ejecting matter from the surface by projecting an ejection agent on the surface. The ejection agent is selected from gases, fluids in supercritical state, solid materials in divided form, solid materials in a gas vector and electromagnetic radiation. The method includes trapping the ejected matter in one or several pieces of an aerogel situated on trajector of the ejected matter. A device for carrying out this method as well as the use of an aerogel to trap the matter ejected from a surface during a treatment of that surface are also disclosed. The method may be applied in fields including cleaning, satinizing, polishing, deburring, etching, marking, pre-adhesion surface preparation metallization enameling, painting or varnishing operations are done, in particular electronics, microelectronics, optics, optoelectronics, bijouterie, jewelry, and the restoration of art and antiques.
    Type: Grant
    Filed: September 7, 2009
    Date of Patent: March 10, 2015
    Assignee: Commissariat à l'Energie Atomique et aux Energies Alternatives
    Inventor: Caroline Hernandez
  • Patent number: 8969760
    Abstract: A system for manufacturing an airfoil includes a laser beam and a first fluid column surrounding the laser beam to create a confined laser beam directed at the airfoil. A gas flowing inside the airfoil disrupts the first fluid column inside the airfoil. A method for manufacturing an airfoil includes confining a laser beam inside a first fluid column to create a confined laser beam and directing the confined laser beam at a surface of the airfoil. The method further includes creating a hole through the surface of the airfoil with the confined laser beam, flowing a gas inside the airfoil, and disrupting the first fluid column with the gas flowing inside the airfoil.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: March 3, 2015
    Assignee: General Electric Company
    Inventors: Zhaoli Hu, Douglas Anthony Serieno
  • Patent number: 8969759
    Abstract: An apparatus for creating a hole in solid sheet material (1) by laser beam irradiation is described comprising a source of laser radiation; a focusing apparatus (11) for impinging a beam of laser radiation from the source onto a surface of solid sheet material (1) in which holes are to be formed in use; and a holding device (7) for holding said solid sheet material (1); wherein the holding device (7) is structured to hold the sheet material (1) in use in an arcuate configuration. A method of creating a hole in solid sheet material making use of such an arcuate configuration is also described.
    Type: Grant
    Filed: January 20, 2010
    Date of Patent: March 3, 2015
    Assignee: CAV Advanced Technologies Limited
    Inventor: Bryan Humphreys
  • Publication number: 20150052751
    Abstract: A system for manufacturing an airfoil includes an unfocused laser beam and a first fluid column surrounding the unfocused laser beam to create a confined laser beam directed at the airfoil. A sensor inside the airfoil detects penetration of the confined laser beam through the surface of the airfoil. A method for manufacturing an airfoil includes confining an unfocused laser beam inside a first fluid column to create a confined laser beam, directing the confined laser beam at a surface of the airfoil, and penetrating the surface of the airfoil with the confined laser beam. The method further includes detecting penetration of the confined laser beam through the surface of the airfoil.
    Type: Application
    Filed: August 20, 2013
    Publication date: February 26, 2015
    Applicant: General Electric Company
    Inventors: Zhaoli Hu, Douglas Anthony Serieno, Mark Joel Kromer
  • Publication number: 20150048071
    Abstract: A coaxial nozzle of a laser beam machine has an inner nozzle in which a laser beam and an inner gas are passing through an inner side, an outer nozzle provided at an outer side of the inner nozzle, and a cooling circuit for cooling the inner nozzle.
    Type: Application
    Filed: March 13, 2013
    Publication date: February 19, 2015
    Applicant: AMADA COMPANY, LIMITED
    Inventor: Naruaki Shioji
  • Publication number: 20150048069
    Abstract: Laser nozzle usable for laser cutting, especially with a fiber or disk laser, comprising: a nozzle body comprising an axial housing passing axially through the nozzle body and comprising a first output orifice located in the front side of the nozzle body; a movable element able to move in translation in the axial housing in the direction of the first output orifice under the effect of a gas pressure acting on the movable element; and an elastic element arranged in the axial housing, between the nozzle body and the movable element, the elastic element exercising an elastic return force on the movable element tending to oppose the translation movement in the axial housing in the direction of the first output orifice.
    Type: Application
    Filed: October 22, 2012
    Publication date: February 19, 2015
    Applicant: L'Air Liquide, Societe Anonyme Pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Isabelle Debecker, Thomas Jouanneau, Philippe Lefebvre
  • Patent number: 8952290
    Abstract: In the thermal cutting of a workpiece by means of a laser beam, said beam is generated by means of a laser source and supplied to a movable laser head. In the laser head, an optical deflection element is provided for deflecting the laser beam such that, when viewed in working direction, it encloses a tilt angle (?) differing from 0 degrees with the longitudinal axis of the laser head. Starting therefrom, to produce the inclination of the collimated laser beam to the vertical with a very small number of optical components if possible, the invention suggests that the laser beam is supplied to the laser head by means of an optical fiber and the laser beam is collimated, passes through the deflection element laterally offset to the longitudinal axis of the laser head and is deflected by means of said element onto the workpiece surface and focused at the same time.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: February 10, 2015
    Assignee: Messer Cutting Systems GmbH
    Inventor: Karl Eck
  • Publication number: 20150034615
    Abstract: Methods, devices and systems for laser decoating of coated metal sheets, in particular for removing a metal protective layer from a metal sheet by a laser beam. The laser beam is directed onto a surface of a metal sheet coated with a metal protective layer, such that the laser beam strikes the surface of the metal sheet at a laser spot and melts material of the metal protective layer. A gas is directed by a plurality of nozzles at a pressure of at least 3 bar and at an acute angle with respect to the laser beam onto the laser spot. The nozzles are arranged around the laser beam such that the gas directed from the nozzles blows away the melted material of the metal protective layer from the metal sheet.
    Type: Application
    Filed: August 4, 2014
    Publication date: February 5, 2015
    Inventors: Severin Luzius, Florian Kiefer
  • Patent number: 8946587
    Abstract: A laser machining apparatus is provided with: a workpiece support unit; a machining head; and a machining head moving unit. The workpiece support unit includes: an end support part that supports a width end of a workpiece; and an inside support part that supports an inside portion of the workpiece in a width direction. The end support part is movable in a longitudinal direction independently from the inside support part in response to a movement of the machining head.
    Type: Grant
    Filed: August 27, 2012
    Date of Patent: February 3, 2015
    Assignee: Honda Motor Co., Ltd.
    Inventors: Takuo Kobayashi, Shin Yoshida, Izuru Hori, Masahiro Koike, Kenichi Fukami
  • Patent number: 8946588
    Abstract: A process for providing a protection against damages in a machine head is claimed. The process comprises the following steps: First a blind steel plate (protection plate 20) is fixed to a protection chamber (10). Then the transparent liquid jet (WJ) guided laser beam (LB) is started, which drills a transit-hole into it. This protection plate (20) has the transit-hole (23) precisely arranged on the optical axis. Therefore no further alignment is required. Further an apparatus for treating a work piece by means of a laser beam (LB) which is guided in a transparent liquid jet (WJ) is claimed. The apparatus comprises a protection chamber (10) mounted on the output (5) of a coupling unit (CU) and a protection plate (20) replaceable fixed to the first chamber (10) protecting the outlet (15) of the first chamber (10) from sputtered debris.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: February 3, 2015
    Assignee: Synova SA
    Inventors: Grigore Suruceanu, Benjamin Carron
  • Publication number: 20150001195
    Abstract: An optical system head of the laser processing machine includes a focusing optical system configured to deflect and condense an incident laser beam so that a target object to be processed is irradiated and a deflecting direction adjusting unit configured to adjust the direction of deflection of the laser beams about at least two axes perpendicular or substantially perpendicular to each other. A nozzle holding head of the laser processing machine includes a cutting nozzle configured to blow a cutting gas at a site of the target object, at which the laser beam is irradiated, and a nozzle position adjusting unit configured to adjust the position of the cutting nozzle in a top plane parallel or substantially parallel to the target object. The optical system head and the nozzle holding head are separately supported by an optical system nozzle support member configured to selectively advance or retract in three axis directions relative to the target object.
    Type: Application
    Filed: January 16, 2013
    Publication date: January 1, 2015
    Applicant: MURATA MACHINERY, LTD.
    Inventor: Takuya Okada
  • Patent number: 8901453
    Abstract: A laser processing system includes a laser processing head, a powder supply device, and a controller. The powder supply device supplies powder to the laser processing head. The laser processing head includes: a laser emission unit which irradiates a workpiece with laser light; and a powder supply unit which receives the powder supplied from a powder supply device to the laser processing head, and can supply the powder to a laser spot on the workpiece. The powder supply unit includes: a powder discharge unit which can discharge the powder toward the laser spot on the workpiece; and a powder-supply control mechanism which controls the amount of the powder to be supplied to the powder discharge unit, by distributing to the powder discharge unit at least a part of a flow of the powder supplied from the powder supply device. The controller controls the distributing by the powder-supply control mechanism.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: December 2, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Masanori Miyagi, Takeshi Tsukamoto, Hirotsugu Kawanaka
  • Patent number: 8872057
    Abstract: An electrode of an inductive output tube (IOT) is provided with channels for guiding cooling fluid. In one aspect of the invention, the channels are in a confronting relationship with a jacket surrounding the electrode and spaced from the electrode so as to define an interior region. Cooling fluid such as oil is circulated in the channels in fluid communication with the interior region, providing an escape mechanism for trapped bubbles in order to prevent localized heating of the electrode. In another aspect of the invention, the channels form multiple intersecting helical patterns of different pitches, with the steeper-pitched channels providing a more direct escape route for the bubbles.
    Type: Grant
    Filed: March 15, 2006
    Date of Patent: October 28, 2014
    Assignee: Communications & Power Industries LLC
    Inventors: Paul A. Krzeminski, Gordon R. Lavering
  • Patent number: 8872058
    Abstract: An improved laser shock hardening method and apparatus which can eliminate spattering of a liquid and waving of the liquid surface upon laser irradiation, and can stably irradiate a workpiece with a laser beam. In a laser shock hardening method for carrying out surface processing of a workpiece in contact with a liquid by irradiating through the liquid the surface of the workpiece with a pulsed laser beam intermittently emitted from a laser irradiation device, the disclosed method provides a solid transparent to the wavelength of the laser, serving as an entrance window to the liquid surface; allowing the liquid to be present in the light path of the laser beam between the solid and the surface of the workpiece; and allowing the laser beam to enter through the solid and irradiating through the liquid the surface of the workpiece with the laser beam.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: October 28, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yuji Sano, Naruhiko Mukai, Masaki Yoda, Yoshiaki Ono, Ryoichi Saeki, Hideki Naito
  • Patent number: 8866040
    Abstract: A spatter removing device for a laser welder including an optic head to which a laser beam is transferred through an optic fiber from a laser oscillator, a cross jet mounted at one side of a lower end portion of the optic head, a safety cover provided at the outside of the optic head so as to surround the optic head, and a material injection unit that injects a material to be welded below the optic head, the device includes a discharge unit and a spatter cooling device. The discharge unit is provided with a discharge pipe that discharges a welding gas and the spatter at one side portion of the safety cover. The spatter cooling device is connected to the discharge pipe and cools the spatter so that the spatter is forcibly collected.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: October 21, 2014
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Tae-Young Ko, Jin-Pil Kim
  • Publication number: 20140305918
    Abstract: A laser processing apparatus including a dust discharging unit for discharging dust generated by the application of a laser beam from a focusing unit to a workpiece. The dust discharging unit includes a dust collector provided below the focusing unit and a suction unit connected to the dust collector. The dust collector has a U-shaped configuration composed of a rectangular top wall having an opening for allowing the pass of the laser beam applied from the focusing unit, a first side wall projecting downward from one side edge of the top wall, and a second side wall projecting downward from the other side edge of the top wall so as to be opposed to the first side wall. The suction unit includes a suction duct having one end connected to the dust collector and the other end connected to a vacuum source.
    Type: Application
    Filed: March 19, 2014
    Publication date: October 16, 2014
    Applicant: DISCO CORPORATION
    Inventors: Tomoaki Endo, Kentaro Odanaka
  • Patent number: 8859934
    Abstract: A method of removing slag formed during laser cutting a hypotube may include flowing cooling gas into a laser nozzle, directing flow of the cooling gas onto an external surface of the hypotube, and injecting cooling fluid into an inner lumen of the hypotube at a velocity. Flowing the cooling gas and injecting the cooling fluid may at least partially remove slag from the external surface of the hypotube.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: October 14, 2014
    Assignee: Insera Therapeutics, Inc.
    Inventors: Vallabh Janardhan, Vikram Janardhan
  • Patent number: 8859988
    Abstract: Reliable coupling of a high-power laser beam into a liquid-jet in a liquid-jet guided laser system can be achieved with high lifetime performance of the nozzle and the protection window, through setting the parameters of the liquid-jet guided laser system according to an optimum relationship that links the focus point of the laser, the focus cone angle, the laser beam energy distribution profile and the nozzle geometry.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: October 14, 2014
    Assignees: se2quel Management GmbH
    Inventors: Jens Guenter Gaebelein, Jeroen Hribar
  • Patent number: 8839497
    Abstract: A machining process and apparatus capable of increasing removal rates achievable when machining titanium and its alloys. The process includes heating a portion of a workpiece with a laser beam, cryogenically cooling a cutting tool with a cryogenic fluid without flowing the cryogenic fluid onto the workpiece, and machining the heated portion of the workpiece with the cutting tool. The apparatus includes a cutting tool, a device for heating a portion of a workpiece with a laser beam prior to being machined with the cutting tool, and a device for cryogenically cooling the cutting tool with a cryogenic fluid without flowing the cryogenic fluid onto the workpiece. The cryogenic fluid is circulated around the cutting tool to achieve a temperature differential between the workpiece and the cutting tool that is capable of improving removal rates and extending tool life at cutting speeds of, for example, above 100 m/min.
    Type: Grant
    Filed: February 19, 2010
    Date of Patent: September 23, 2014
    Assignee: Purdue Research Foundation
    Inventor: Yung C. Shin
  • Publication number: 20140273431
    Abstract: Embodiments of the present disclosure are directed to laser removal of resist material from integrated circuit (IC) packaging components, as well as package assemblies and systems incorporating such material and removal methods. A resist layer may be applied to one or more components of a package assembly. The resist layer may be subsequently removed by applying laser radiation and a flow of fluid to the resist layer. The laser radiation may cause cracking, delamination, and/or polymer chain scission, and the flow of fluid may enhance mechanical separation of the resist material from the package assembly components.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Inventor: Motohiko Sasagawa
  • Patent number: 8829388
    Abstract: A method for contactless laser welding of a plurality of sheets of material stacked upon one another includes simultaneously delivering a laser beam and a stream of fluid through a laser head and further through an end cap which is removably mounted to the laser head. The end cap is configured with a stationary cylinder, which is coupled to the laser head, and a piston movable relative the cylinder. The piston moves in response to a pressure differential generated by the fluid in chambers above and below the piston. Once the pressure equilibrium is reached between the chambers, the pressure in the chamber below the piston is sufficient to reliably press the sheets of material against one another during a laser welding operation.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: September 9, 2014
    Assignee: IPG Photonics Corporation
    Inventors: Igor Samartsev, Vladimir Antonenko, Leonid Pudov
  • Patent number: 8829393
    Abstract: The thermal processing device includes a stage, a continuous wave electromagnetic radiation source, a series of lenses, a translation mechanism, a detection module, a three-dimensional auto-focus, and a computer system. The stage is configured to receive a substrate thereon. The continuous wave electromagnetic radiation source is disposed adjacent the stage, and is configured to emit continuous wave electromagnetic radiation along a path towards the substrate. The series of lenses is disposed between the continuous wave electromagnetic radiation source and the stage, and are configured to condense the continuous wave electromagnetic radiation into a line of continuous wave electromagnetic radiation on a surface of the substrate. The translation mechanism is configured to translate the stage and the line of continuous wave electromagnetic radiation relative to one another. The detection module is positioned within the path, and is configured to detect continuous wave electromagnetic radiation.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: September 9, 2014
    Assignee: Applied Materials, Inc.
    Inventors: Dean C. Jennings, Mark Yam, Abhilash J. Mayur, Vernon Behrens, Paul A. O'Brien, Leonid M. Tertitski, Alexander Goldin
  • Publication number: 20140245608
    Abstract: In removal processing using a pulsed laser beam, processing deviation occurs in the depthwise direction to cause a processing error in a predetermined removal shape. A first pulsed laser beam L1 is a pulsed laser beam having a wavelength that exhibits transmittance to a workpiece 6, and a second pulsed laser beam L2 is a pulsed laser beam having a wavelength that exhibits absorption to the workpiece 6. The first pulsed laser beam L1 is focused into the workpiece 6, and a focal point P1 of the first pulsed laser beam L1 is scanned along the outline of a predetermined removal region R1 to form a modified portion 6A along the outline of the predetermined removal region R1. Next, removal processing is performed by scanning the second pulsed laser beam L2 in a region enclosed by the modified portion 6A.
    Type: Application
    Filed: October 3, 2012
    Publication date: September 4, 2014
    Applicant: Canon Kabushiki Kaisha
    Inventors: Hiroyuki Morimoto, Kosuke Kurachi
  • Publication number: 20140246129
    Abstract: A process for localized hardening of steel sheet components includes scanning a laser beam in a scan direction across a predetermined portion of the steel sheet component. The laser beam selectively heats material within the predetermined portion of the steel sheet component to a temperature of austenitizing transformation. During scanning of the laser beam across the predetermined portion, a source of external cooling is applied to the material within the predetermined portion and immediately behind the laser beam along the scan direction of the laser beam. The source of external cooling is selected to cool the material at a sufficiently rapid rate to form a locally hardened region that is defined substantially within the predetermined portion. Subsequent to applying the source of external cooling, the material within the predetermined portion of the steel sheet component is allowed to cool to ambient temperature.
    Type: Application
    Filed: July 25, 2012
    Publication date: September 4, 2014
    Applicant: MAGNA INTERNATIONAL INC.
    Inventors: Maximilian Amtmann, Boris Shulkin, Aldo Van Gelder, Hongping Gu
  • Patent number: 8822878
    Abstract: A system and process for production of nanometric or sub-micrometric powders in continuous flux under the action of laser pyrolysis in at least one interaction zone between a beam emitted by a laser and a flux of reagents emitted by an injector, in which the laser is followed by optical means for distributing the energy of the beam emitted by the latter according to an axis perpendicular to the axis of each flux of reagents, in an elongated cross-section having adjustable dimensions at the level of this at least one interaction zone.
    Type: Grant
    Filed: November 7, 2005
    Date of Patent: September 2, 2014
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Francois Tenegal, Benoit Guizard, Nathalie Herlin-Boime, Dominique Porterat
  • Patent number: 8820434
    Abstract: Delivering high power laser energy to form a borehole deep into the earth using laser energy. Down hole laser tools, laser systems and laser delivery techniques for advancement, workover and completion activities. A laser bottom hole assembly (LBHA) for the delivery of high power laser energy to the surfaces of a borehole, which assembly may have laser optics, a fluid path for debris removal and a mechanical means to remove earth.
    Type: Grant
    Filed: August 19, 2009
    Date of Patent: September 2, 2014
    Assignee: Foro Energy, Inc.
    Inventors: Mark S. Zediker, Mark S. Land, Charles C. Rinzler, Brian O. Faircloth, Yeshaya Koblick, Joel F. Moxley
  • Publication number: 20140238963
    Abstract: A mask manufacturing apparatus includes a chamber, a laser beam irradiator, a stage, a cooling system, and a fan. The chamber provides an interior space therein. At least an upper wall of the chamber comprises a glass. The laser beam irradiator is disposed outside the chamber and configured to divide a laser beam into a plurality of sub-laser beams to irradiate the sub-laser beams onto a shadow mask material. The stage is disposed in the chamber and the shadow mask material is placed on the stage. The cooling system is configured cool the interior space. The fan configured to discharge heat generated in the interior space of the chamber to the outside of the chamber. Therefore, the shadow mask may be protected from overheating.
    Type: Application
    Filed: September 9, 2013
    Publication date: August 28, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Jun Ho JO, Doh-Hyoung LEE
  • Publication number: 20140238961
    Abstract: A laser machining apparatus includes a laser nozzle for supplying an assistive gas to remove undesirable materials and applying a laser beam at an angle, which is inclined with respect to a surface of a workpiece, a sputter blocking jig disposed over a region of the workpiece that is irradiated with the laser beam, so as to lie across directions in which the laser beam is scattered, and for blocking sputtered particles that are generated from the surface by the applied laser beam, and a joint connecting the laser nozzle and the sputter blocking jig to each other. The joint moves the laser nozzle and the sputter blocking jig in synchronism with each other.
    Type: Application
    Filed: February 25, 2014
    Publication date: August 28, 2014
    Applicant: HONDA MOTOR CO., LTD.
    Inventor: Daisuke Kato
  • Patent number: 8816244
    Abstract: A stent manufacturing device and methods for making intravascular stents and other medical devices. The stent manufacturing device may include a base, a laser or other cutting device coupled to the base, a horizontal motor coupled to the base, and a rotary motor coupled to the horizontal motor. A workpiece can be attached to the cutting device, for example adjacent the rotary motor, and the workpiece can be cut with the cutting device.
    Type: Grant
    Filed: April 13, 2004
    Date of Patent: August 26, 2014
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Kenneth Merdan, Matt Shedlov
  • Patent number: 8816241
    Abstract: Together with a scanner device, an air blower is provided above a workpiece, and the air blower exhausts air in the shape of a ring toward the workpiece, the air in a ring shape surrounding an optical axis of a laser beam emitted from the scanner device. A housing of the air blower is formed in a ring shape, a ring-shaped cavity is formed in the housing, an inner ring member is attached to an undersurface of the housing, an outer ring member is attached to an outer peripheral side of the inner ring member, and a ring-shaped exhaust port is formed between the inner ring member and the outer ring member. An exhaust direction of the air is defined by inclination of an outer-peripheral-side end surface of the inner ring member and inclination of an inner-peripheral-side end surface of the outer ring member (FIG. 2).
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: August 26, 2014
    Assignee: Suzuki Motor Corporation
    Inventors: Sachio Kishino, Manabu Kobayashi