EP2948268A1 - Laserverfahren mit unterschiedlichem laserstrahlbereich innerhalb eines strahls - Google Patents
Laserverfahren mit unterschiedlichem laserstrahlbereich innerhalb eines strahlsInfo
- Publication number
- EP2948268A1 EP2948268A1 EP14705746.7A EP14705746A EP2948268A1 EP 2948268 A1 EP2948268 A1 EP 2948268A1 EP 14705746 A EP14705746 A EP 14705746A EP 2948268 A1 EP2948268 A1 EP 2948268A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- laser beam
- area
- beam area
- substrate
- laser
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims description 17
- 238000003466 welding Methods 0.000 claims description 10
- 239000000758 substrate Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 2
- 230000008021 deposition Effects 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- 239000013078 crystal Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/34—Laser welding for purposes other than joining
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/34—Laser welding for purposes other than joining
- B23K26/342—Build-up welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/0006—Working by laser beam, e.g. welding, cutting or boring taking account of the properties of the material involved
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
- B23K26/0648—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms comprising lenses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/067—Dividing the beam into multiple beams, e.g. multifocusing
- B23K26/0676—Dividing the beam into multiple beams, e.g. multifocusing into dependently operating sub-beams, e.g. an array of spots with fixed spatial relationship or for performing simultaneously identical operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/352—Working by laser beam, e.g. welding, cutting or boring for surface treatment
- B23K26/354—Working by laser beam, e.g. welding, cutting or boring for surface treatment by melting
Definitions
- the invention relates to lasering, in which a laser beam is used which has two different laser beam ranges.
- the temperature field should be designed so that thermal compressive stresses are generated in the trailing area.
- the object is achieved by a method according to claim 1.
- the figure shows schematically the invention.
- an intensity distribution of a laser beam 1 according to the invention is shown.
- An inner laser beam area 7 is not arranged concentrically to an outer laser beam area 4.
- an inner laser beam area 7 which has a higher intensity or a higher power, in particular 30-1000 W / mm 2 , very particularly 100-300 W / mm 2 and can melt a crack or material for a Build-up welding can melt.
- the inner beam portion 7 is preferably completeness dig, surrounded by an outer beam portion 4 which has a larger cross section, in particular a larger diameter and has a smaller intensity, or a ge ⁇ ringer laser power before so that the outer beam portion 4 to the area and behind the inner laser beam area 7 only preheated or reheated.
- the diameter of the inner beam portion 7 1mm and that of the outer beam portion 4 is preferably be ⁇ carries 4mm.
- the inner region 7 is not arranged concentrically in the outer laser beam region 4. As a result of this intensity distribution, the temperature gradient in the beam direction of the laser beam 1 is increased, and such a laser beam 1 can preferably be used in monocrystalline remelting or build-up welding.
- An example of a substrate having a directionally solidified structure is PWA 1483SX, which gives a monocrystalline structure.
- the ratio of the intensities or the power of the laser beam regions 4, 7 to one another is at least 1.5, in particular ⁇ at least 2.
- the surface of the inner laser beam region 7 is preferably ⁇ a maximum of 25% of the outer laser beam area. 4
- the inner laser beam region 7 is closer to the region to be remelted.
- the inner laser beam region 7 may be arranged with its edge on the edge 9 of the outer laser beam region 4 (not shown) or have a distance from the edge of the outer laser ⁇ beam region 4.
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14705746.7A EP2948268A1 (de) | 2013-03-07 | 2014-02-18 | Laserverfahren mit unterschiedlichem laserstrahlbereich innerhalb eines strahls |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13158179.5A EP2774712A1 (de) | 2013-03-07 | 2013-03-07 | Laserverfahren mit unterschiedlichem Laserstrahlbereich innerhalb eines Strahls |
EP14705746.7A EP2948268A1 (de) | 2013-03-07 | 2014-02-18 | Laserverfahren mit unterschiedlichem laserstrahlbereich innerhalb eines strahls |
PCT/EP2014/053072 WO2014135362A1 (de) | 2013-03-07 | 2014-02-18 | Laserverfahren mit unterschiedlichem laserstrahlbereich innerhalb eines strahls |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2948268A1 true EP2948268A1 (de) | 2015-12-02 |
Family
ID=47827059
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13158179.5A Withdrawn EP2774712A1 (de) | 2013-03-07 | 2013-03-07 | Laserverfahren mit unterschiedlichem Laserstrahlbereich innerhalb eines Strahls |
EP14705746.7A Withdrawn EP2948268A1 (de) | 2013-03-07 | 2014-02-18 | Laserverfahren mit unterschiedlichem laserstrahlbereich innerhalb eines strahls |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13158179.5A Withdrawn EP2774712A1 (de) | 2013-03-07 | 2013-03-07 | Laserverfahren mit unterschiedlichem Laserstrahlbereich innerhalb eines Strahls |
Country Status (3)
Country | Link |
---|---|
US (1) | US10144092B2 (de) |
EP (2) | EP2774712A1 (de) |
WO (1) | WO2014135362A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016205930A1 (de) * | 2016-04-08 | 2017-10-12 | Siemens Aktiengesellschaft | Umschmelzen mit gleichzeitiger Erzeugung einer Druckringzone |
WO2018096153A1 (en) | 2016-11-28 | 2018-05-31 | Koninklijke Philips N.V. | Analytic prediction of antibiotic susceptibility |
GB2558274B (en) * | 2016-12-23 | 2019-04-17 | Caterpillar Shrewsbury Ltd | Method of remanufacturing a cylinder head |
DE102019203350A1 (de) * | 2019-03-12 | 2020-09-17 | Trumpf Laser- Und Systemtechnik Gmbh | Hairpin-Schweißverfahren und -vorrichtung |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050100703A1 (en) * | 2003-06-11 | 2005-05-12 | Masaki Terada | Process for laser welding resinous members, apparatus for the same and laser-welded resinous product |
US7173212B1 (en) * | 2004-02-13 | 2007-02-06 | Semak Vladimir V | Method and apparatus for laser cutting and drilling of semiconductor materials and glass |
US20100206855A1 (en) * | 2007-10-08 | 2010-08-19 | Selim Mokadem | Preheating temperature during remelting |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2821883C2 (de) * | 1978-05-19 | 1980-07-17 | Ibm Deutschland Gmbh, 7000 Stuttgart | Vorrichtung zur Materialbearbeitung |
DD288933A5 (de) * | 1989-10-30 | 1991-04-11 | Friedrich-Schiller-Universitaet,De | Verfahren zur lasermaterialbearbeitung mit dynamischer fokussierung |
JPH04182088A (ja) * | 1990-11-17 | 1992-06-29 | Kobe Steel Ltd | レーザ加工用集光装置 |
JPH04182087A (ja) * | 1990-11-17 | 1992-06-29 | Kobe Steel Ltd | レーザ加工用集光装置 |
DE10255187A1 (de) * | 2002-11-27 | 2004-06-24 | Robert Bosch Gmbh | Verfahren zum Verbinden einer Elektrode mit einem Edelmetallabschnitt |
US7491909B2 (en) * | 2004-03-31 | 2009-02-17 | Imra America, Inc. | Pulsed laser processing with controlled thermal and physical alterations |
US6872912B1 (en) * | 2004-07-12 | 2005-03-29 | Chromalloy Gas Turbine Corporation | Welding single crystal articles |
DE102007024701A1 (de) * | 2007-05-25 | 2008-11-27 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren zur Materialabtragung sowie Vorrichtung zur Durchführung des Verfahrens |
DE102008018264A1 (de) * | 2008-04-10 | 2009-10-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Schweißverfahren mit geregeltem Temperaturverlauf und eine Vorrichtung dafür |
EP2186594A1 (de) * | 2008-11-12 | 2010-05-19 | Siemens Aktiengesellschaft | Verfahren und Vorrichtung zur Vorwärmung beim Schweißen unter Verwendung eines zweiten Laserstrahles |
DE102009049518A1 (de) * | 2009-10-15 | 2011-04-21 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren und Vorrichtung zum Schweißen von Werkstücken aus hochwarmfesten Superlegierungen |
EP2322313A1 (de) * | 2009-11-13 | 2011-05-18 | Siemens Aktiengesellschaft | Verfahren zum Schweissen von Werkstücken aus hochwarmfesten Superlegierungen mit besonderer Massenzufuhrrate des Schweisszusatzwerkstoffes |
DE102010031365A1 (de) * | 2010-07-15 | 2012-01-19 | Robert Bosch Gmbh | Bauelement für ein Einspritzventil mit zwei verbundenen Bauteilen |
GB201106623D0 (en) * | 2011-04-20 | 2011-06-01 | Rolls Royce Plc | Laser beam intensity distribution |
GB2490143B (en) * | 2011-04-20 | 2013-03-13 | Rolls Royce Plc | Method of manufacturing a component |
JP2014073526A (ja) * | 2012-10-05 | 2014-04-24 | Mitsubishi Heavy Ind Ltd | 光学系及びレーザ加工装置 |
-
2013
- 2013-03-07 EP EP13158179.5A patent/EP2774712A1/de not_active Withdrawn
-
2014
- 2014-02-18 WO PCT/EP2014/053072 patent/WO2014135362A1/de active Application Filing
- 2014-02-18 EP EP14705746.7A patent/EP2948268A1/de not_active Withdrawn
- 2014-02-18 US US14/773,508 patent/US10144092B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050100703A1 (en) * | 2003-06-11 | 2005-05-12 | Masaki Terada | Process for laser welding resinous members, apparatus for the same and laser-welded resinous product |
US7173212B1 (en) * | 2004-02-13 | 2007-02-06 | Semak Vladimir V | Method and apparatus for laser cutting and drilling of semiconductor materials and glass |
US20100206855A1 (en) * | 2007-10-08 | 2010-08-19 | Selim Mokadem | Preheating temperature during remelting |
Non-Patent Citations (1)
Title |
---|
See also references of WO2014135362A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2014135362A1 (de) | 2014-09-12 |
EP2774712A1 (de) | 2014-09-10 |
US10144092B2 (en) | 2018-12-04 |
US20160016263A1 (en) | 2016-01-21 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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17P | Request for examination filed |
Effective date: 20150824 |
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AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
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AX | Request for extension of the european patent |
Extension state: BA ME |
|
DAX | Request for extension of the european patent (deleted) | ||
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SIEMENS AKTIENGESELLSCHAFT Owner name: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWAN |
|
17Q | First examination report despatched |
Effective date: 20181203 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20190416 |