EP2943310A1 - Laser method with different laser beam areas within a beam and devices - Google Patents
Laser method with different laser beam areas within a beam and devicesInfo
- Publication number
- EP2943310A1 EP2943310A1 EP14705323.5A EP14705323A EP2943310A1 EP 2943310 A1 EP2943310 A1 EP 2943310A1 EP 14705323 A EP14705323 A EP 14705323A EP 2943310 A1 EP2943310 A1 EP 2943310A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- laser beam
- substrate
- areas
- region
- area
- 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- Withdrawn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
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
- B23K26/352—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
-
- 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
-
- 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
-
- 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
- B23K26/34—Laser welding for purposes other than joining
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/16—Remelting metals
- C22B9/22—Remelting metals with heating by wave energy or particle radiation
- C22B9/221—Remelting metals with heating by wave energy or particle radiation by electromagnetic waves, e.g. by gas discharge lamps
Definitions
- the invention relates to a laser method in which a
- the invention simplifies the operational and procedural preheating during welding and the generation of larger temperature gradients. Show it:
- Laser beam regions 7, 4 has.
- an inner laser beam region 7 having a higher intensity or power, preferably from 200W to 300W, and a crack in the substrate 20
- the inner laser beam area 7 is, preferably
- an outer laser beam region 4 which has a larger cross-section, in particular a larger diameter and has a lower intensity or a lower power, so that the outer
- Laser beam area 4 the area in front of and behind the inner laser beam area 7 only preheated and reheated when the
- Laser beam 1 is moved over the substrate 20.
- Laser beam range 4 is at least 3.5mm, in particular at least 4mm, most preferably 4mm.
- the inner region 7 is preferably arranged concentrically in the outer region 4.
- Such a laser beam 1 can preferably be generated by a bifocal lens 10, in which a laser beam 13 with a single wavelength ⁇ through the bifocal lens 10 correspondingly in an inner 7 and outer 4
- Material can be supplied by the laser beam 1, in particular by the inner laser beam area 7,
- Laser beam 1 ⁇ consists according to Figure 2 in that an incoming laser beam 14 has two different wavelengths ⁇ , ⁇ 2 , which are different strongly refracted by a single lens 11 and so the different
- the temperature gradient is increased perpendicular to the substrate 20 and such a laser beam 1, 1 ⁇ can preferably be used during the
- monocrystalline remelting or build-up welding can be used.
- 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 powers of the laser beam regions 4, 7 to one another is at least 1.2, in particular at least 1.5.
- the area of the inner laser beam area 7 is the area of the inner laser beam area 7 .
- FIG. 3 shows an intensity distribution according to the invention.
- the inner laser beam region 7 is arranged concentrically within the outer laser beam region 4.
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Electromagnetism (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Laser Beam Processing (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14705323.5A EP2943310A1 (en) | 2013-03-07 | 2014-02-14 | Laser method with different laser beam areas within a beam and devices |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13158185.2A EP2774713A1 (en) | 2013-03-07 | 2013-03-07 | Laser method with different laser beam areas within a beam and devices |
EP14705323.5A EP2943310A1 (en) | 2013-03-07 | 2014-02-14 | Laser method with different laser beam areas within a beam and devices |
PCT/EP2014/052939 WO2014135358A1 (en) | 2013-03-07 | 2014-02-14 | Laser method with different laser beam areas within a beam and devices |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2943310A1 true EP2943310A1 (en) | 2015-11-18 |
Family
ID=47844148
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13158185.2A Withdrawn EP2774713A1 (en) | 2013-03-07 | 2013-03-07 | Laser method with different laser beam areas within a beam and devices |
EP14705323.5A Withdrawn EP2943310A1 (en) | 2013-03-07 | 2014-02-14 | Laser method with different laser beam areas within a beam and devices |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13158185.2A Withdrawn EP2774713A1 (en) | 2013-03-07 | 2013-03-07 | Laser method with different laser beam areas within a beam and devices |
Country Status (3)
Country | Link |
---|---|
US (1) | US9884391B2 (en) |
EP (2) | EP2774713A1 (en) |
WO (1) | WO2014135358A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016205930A1 (en) * | 2016-04-08 | 2017-10-12 | Siemens Aktiengesellschaft | Remelting with simultaneous creation of a pressure ring zone |
GB202108637D0 (en) * | 2021-06-17 | 2021-08-04 | Rolls Royce Plc | Electron beam welding |
CN116551176B (en) * | 2023-07-12 | 2023-09-15 | 长春理工大学 | Infrared detection window laser welding device and welding method |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003340582A (en) * | 2002-05-23 | 2003-12-02 | Mitsubishi Heavy Ind Ltd | Apparatus and method for laser welding |
JP2008168333A (en) * | 2007-01-15 | 2008-07-24 | Japan Unix Co Ltd | Laser soldering apparatus |
DE112007003258T5 (en) * | 2007-01-15 | 2009-11-19 | Japan Unix Co. Ltd. | laser type soldering |
EP2810736A1 (en) * | 2013-05-06 | 2014-12-10 | Siemens Aktiengesellschaft | Laser apparatus and method with pre-heating |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD288933A5 (en) * | 1989-10-30 | 1991-04-11 | Friedrich-Schiller-Universitaet,De | METHOD FOR LASER MATERIAL PROCESSING WITH DYNAMIC FOCUSING |
JPH04182087A (en) * | 1990-11-17 | 1992-06-29 | Kobe Steel Ltd | Condensing device for laser beam machining |
JPH04182088A (en) * | 1990-11-17 | 1992-06-29 | Kobe Steel Ltd | Condensing device for laser beam machining |
DK109197A (en) * | 1996-09-30 | 1998-03-31 | Force Instituttet | Process for processing a material by means of a laser beam |
EP0865863A1 (en) * | 1997-03-19 | 1998-09-23 | Alphatech-Industrie | Bifocalisation-Optics-Head |
CN1785575B (en) * | 2004-12-08 | 2010-11-10 | 松下电器产业株式会社 | Hybrid laser machining method and hybrid laser torch used therein |
EP2186594A1 (en) * | 2008-11-12 | 2010-05-19 | Siemens Aktiengesellschaft | Method of and device for pre-heating during welding using a second laser beam |
JP2014073526A (en) * | 2012-10-05 | 2014-04-24 | Mitsubishi Heavy Ind Ltd | Optical system and laser beam machining apparatus |
-
2013
- 2013-03-07 EP EP13158185.2A patent/EP2774713A1/en not_active Withdrawn
-
2014
- 2014-02-14 EP EP14705323.5A patent/EP2943310A1/en not_active Withdrawn
- 2014-02-14 WO PCT/EP2014/052939 patent/WO2014135358A1/en active Application Filing
- 2014-02-14 US US14/770,902 patent/US9884391B2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003340582A (en) * | 2002-05-23 | 2003-12-02 | Mitsubishi Heavy Ind Ltd | Apparatus and method for laser welding |
JP2008168333A (en) * | 2007-01-15 | 2008-07-24 | Japan Unix Co Ltd | Laser soldering apparatus |
DE112007003258T5 (en) * | 2007-01-15 | 2009-11-19 | Japan Unix Co. Ltd. | laser type soldering |
EP2810736A1 (en) * | 2013-05-06 | 2014-12-10 | Siemens Aktiengesellschaft | Laser apparatus and method with pre-heating |
Non-Patent Citations (1)
Title |
---|
See also references of WO2014135358A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20160008919A1 (en) | 2016-01-14 |
EP2774713A1 (en) | 2014-09-10 |
US9884391B2 (en) | 2018-02-06 |
WO2014135358A1 (en) | 2014-09-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
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 |
|
17P | Request for examination filed |
Effective date: 20150813 |
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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 |
|
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 |
|
17Q | First examination report despatched |
Effective date: 20181129 |
|
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 |
|
18D | Application deemed to be withdrawn |
Effective date: 20190724 |