WO2012143181A2 - Dispositif de soudage par faisceau laser et procédé de soudage par faisceau laser - Google Patents

Dispositif de soudage par faisceau laser et procédé de soudage par faisceau laser Download PDF

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Publication number
WO2012143181A2
WO2012143181A2 PCT/EP2012/054263 EP2012054263W WO2012143181A2 WO 2012143181 A2 WO2012143181 A2 WO 2012143181A2 EP 2012054263 W EP2012054263 W EP 2012054263W WO 2012143181 A2 WO2012143181 A2 WO 2012143181A2
Authority
WO
WIPO (PCT)
Prior art keywords
laser beam
component
laserstrahlumlenkmittel
deflection means
beam welding
Prior art date
Application number
PCT/EP2012/054263
Other languages
German (de)
English (en)
Other versions
WO2012143181A3 (fr
Inventor
Thorsten Bauer
Axel Bormann
Original Assignee
Robert Bosch Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Priority to EP12709585.9A priority Critical patent/EP2699379A2/fr
Publication of WO2012143181A2 publication Critical patent/WO2012143181A2/fr
Publication of WO2012143181A3 publication Critical patent/WO2012143181A3/fr

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
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • B23K26/10—Devices involving relative movement between laser beam and workpiece using a fixed support, i.e. involving moving the laser beam
    • B23K26/103—Devices involving relative movement between laser beam and workpiece using a fixed support, i.e. involving moving the laser beam the laser beam rotating around the fixed workpiece
    • 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
    • B23K26/0604—Shaping the laser beam, e.g. by masks or multi-focusing by a combination of beams
    • B23K26/0619—Shaping the laser beam, e.g. by masks or multi-focusing by a combination of beams with spots located on opposed surfaces of the workpiece
    • 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
    • B23K26/0643—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms comprising mirrors
    • 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
    • B23K26/073—Shaping the laser spot
    • B23K26/0734—Shaping the laser spot into an annular shape
    • 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
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • B23K26/082—Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head
    • B23K26/0821—Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head using multifaceted mirrors, e.g. polygonal mirror
    • 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
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • B23K26/0823—Devices involving rotation of the workpiece
    • 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
    • B23K26/20—Bonding
    • B23K26/21—Bonding by welding
    • B23K26/24—Seam welding
    • B23K26/28—Seam welding of curved planar seams
    • B23K26/282—Seam welding of curved planar seams of tube sections

Definitions

  • the invention relates to a laser beam welding apparatus according to the preamble of claim 1.
  • Such laser beam welding apparatus for producing annular
  • DE 102007035715 A1 discloses a laser beam processing device with at least one laser beam source for applying a ring-shaped laser focus to a workpiece.
  • this laser beam processing device is disadvantageous comparatively expensive and therefore cost-intensive to implement.
  • laser beam welding devices for producing an annular weld seam are known from the prior art, in which the component to be welded is rotated by a rotary device in order to weld the rotating component by a stationary laser beam.
  • the rotation device for the rotation of the component to be welded is comparatively expensive to implement. So, for example, in order to realize the rotation of the component, the component can be driven synchronously and comparatively precisely in or through the rotary device along a plurality of axes of movement. This disadvantageously leads to comparatively high costs for the components of the rotary device and to comparatively great expenditure of time in the setup.
  • the laser beam welding apparatus according to the invention and the laser beam welding method according to the invention for producing a, in particular annular, weld on a component according to the independent claims have the advantage over the prior art that the laser beam welding apparatus and the laser beam welding method according to the invention are relatively easy to implement.
  • the laser beam is inventively deflected so that the laser beam can be directed from different directions to the component.
  • annular welds can be made comparatively accurate even for components smaller than 100 mm in diameter.
  • the component can basically be made of any material.
  • the component is preferably cylindrical or polygonal-shaped at least in the region of the weld seam, or the component has a circular or polygonal cross-section, at least in the region of the weld seam.
  • a laser beam source any conventional laser beam source can be used.
  • the first laser beam deflection means and / or the second laser beam deflection means are preferably mirrors and / or light guides.
  • the first laser beam deflection means is preferably a focusing optics for focusing and deflecting the first laser beam.
  • the first laser beam, the second laser beam and the laser beam deflected onto the component can in principle be arranged at any angle to one another.
  • the first laser beam deflection means comprises a polygon mirror.
  • a preferably rotating polygon mirror advantageously produces a comparatively good weld seam, because at comparatively high rotational speeds of the polygon mirror, a quasi-stationary weld pool at the location of the polygon mirror is produced
  • Weld seam on the component can be generated.
  • the first Laserstrahlumlenkstoff is rotatably provided.
  • the laser beam source and the first laser beam deflection means are preferably realized in a conventional laser scanner with a rotating mirror.
  • the laser beam welding device has a third laser beam deflection means, a fourth laser beam deflection means and a fifth laser beam deflection means, the first laser beam deflection means being movably provided with respect to the third laser beam deflection means, the fourth laser beam deflection means and the fifth laser beam deflection means, the second laser beam deflection means in that the third laser beam deflection means, the fourth laser beam deflection means and the fifth laser beam deflection means are respectively configured directly or indirectly for deflecting the second laser beam onto the component for producing a partial region of the annular weld seam.
  • the third laser beam deflection means, the fourth laser beam deflection means and / or the fifth laser beam deflection means are preferably mirrors and / or light guides. It is also possible to arrange more than four laser beam deflecting means, whereby the individual partial area covered by each individual laser beam deflecting means can be reduced so that the angle of incidence of the laser beams on the component varies to a comparatively small extent so that the quality of the weld seam on the component can be considerably improved . According to another preferred development, it is provided that the laser beam welding device is configured such that the first laser beam, the second laser beam and the laser beam directed onto the component run substantially in one plane. As a result, a comparatively space-saving realization of the laser beam device is advantageously possible.
  • Another object of the present invention relates to a laser beam welding method for producing a, in particular annular, weld on a component, wherein in a first step, a first laser beam is generated, wherein in a second step, the first laser beam by a moving first Laserstrahlumlenkstoff into a second laser beam is deflected, and wherein in a third step, the second laser beam is deflected by a second Laserstrahlumlenkstoff on the component.
  • the first Laserstrahlumlenkstoff is rotated.
  • the laser beam welding method is used for connecting two tubular or cylindrical, preferably made of solid material, components.
  • Another object of the present invention relates to a laser beam welding apparatus for producing a, in particular annular, weld on a component, with at least one laser beam source for generating a laser beam with a main propagation direction, wherein the component is arranged substantially perpendicular to the main propagation direction of the laser beam.
  • the movement of the component firmly clamped in a clamping device perpendicular to the main propagation direction of the laser beam is preferably realized by at least one linear movement of the clamping device.
  • the clamping device is moved with the firmly clamped component on a circular path.
  • mirrors and / or light guides for deflecting the laser beam are arranged on different partial regions of the component.
  • further laser beam sources are arranged, which are respectively directed to different subregions of the component, wherein the component advantageously does not have to be rotated.
  • Another object of the present invention relates to a laser beam welding method for producing a, in particular annular, weld on a component, wherein in a first step, at least one laser beam is generated with a main propagation direction, wherein in a second step, the component substantially perpendicular to the main propagation direction of La - o serstrahls is moved.
  • FIG. 1 schematically shows a laser beam welding apparatus according to an exemplary embodiment of the present invention
  • FIG. 2 shows schematically a laser beam welding apparatus according to another exemplary embodiment of the present invention
  • FIG. 1 schematically shows a laser beam welding apparatus 1 according to an exemplary embodiment of the present invention.
  • the laser beam welding apparatus 1 has a laser beam source 10.
  • the laser beam welding apparatus 1 further comprises a first laser beam deflection means 3, a second laser beam deflection means 4, a third laser beam deflection means 5, a fourth laser beam deflection means 7 and a fifth laser beam deflection means 8. WEI terhin, the laser beam welding device 1 on a deflection prism 9. Between the Laserstrahlumlenkschn 4, 5, 7 and 8 and the deflection prism 9 a to be welded component 6 is arranged.
  • the laser beam welding apparatus 1 also has areas 11, 11 ', 11 "and 11'" in which other components can be arranged, such as struts and / or tensioning devices.
  • the first Laserstrahlumlenkstoffbach 3 is designed as a laser scanner with a flat, rotatable mirror.
  • the Verfahrwegsrich- direction of the laser scanner 3 in a welding process is indicated by the arrow 12.
  • the laser beam source 10 generates a first laser beam 2.
  • the mirror 3 is rotated during the welding process in the image plane from bottom to top, so that in a temporal sequence, the second laser beams 2 "", 2 "', 2" and 2' reflected by the mirror 3 become.
  • the second laser beam 2 "" is emitted in this exemplary embodiment.
  • the second laser beam 2 "" strikes the fifth laser beam deflection means 8 and is deflected from there to the component 6.
  • the second laser beam 2 "'strikes the deflection prism 9 and is deflected from there to the fourth laser beam deflection means 7.
  • the second laser beam 2"' is deflected onto the component 6 by the fourth laser beam deflection means 7.
  • the second laser beam 2 "strikes the deflection prism 9 and is deflected from there to the third laser beam deflection means 5.
  • the second laser beam 2" is deflected onto the component 6 by the third laser beam deflection means 5.
  • the second laser beam 2 ' is moved in a beam region 13, as a result of which a partial region encompassing approximately 180 ° can be covered on the component 6 via the second laser beam deflection means 4.
  • Such a beam area is created for the second laser beams 2 ", 2"'and 2 "", but the illustration of this beam area has been omitted for reasons of clarity.
  • FIG. 2 schematically shows the laser beam welding apparatus 1 according to another exemplary embodiment of the present invention.
  • this embodiment has a rotating polygon mirror 3 instead of the flat mirror.
  • the polygon mirror 3 is rotated in this embodiment counterclockwise (indicated by the arrow 21).
  • This embodiment with the rotating polygon mirror 3 has the advantage that the polygon mirror 3 can be rotated comparatively quickly (high feed rate) without disturbing acceleration forces occurring. Due to a high feed rate, a "quasi-stationary weld pool" can advantageously be achieved in the region of the weld seam on the component 6, as a result of which the quality of the weld seam can be substantially improved.
  • FIG. 3 schematically shows a laser beam welding apparatus 1 according to another embodiment of the present invention.
  • the laser beam welding apparatus 1 includes a first laser beam source 31, a second laser beam source 32, a third laser beam source 33, and a fourth laser beam source
  • the first laser beam source 31 emits a first laser beam 41
  • the second laser beam source 32 emits a second laser beam 42
  • the third laser beam source 33 emits a third laser beam 43
  • the fourth laser beam source 34 emits a fourth laser beam 44
  • each laser beam 41, 42 , 43, 44 each have a main propagation direction.
  • the laser beam sources 31, 32, 33, 34 and the laser beams 41, 42, 43, 44 are stationary, ie the laser beams 41, 42, 43, 44 are not deflected, but they go directly to the component 6.
  • the component 6 is fixed in a clamping device (not shown) clamped.
  • the tensioning device is movably arranged so that the tensioning device can be moved parallel to the axles 36, 37 in this exemplary embodiment.
  • the axes 36, 37 are each arranged perpendicular to at least two of the main propagation directions of the laser beams 41, 42, 43, 44.
  • the clamping device with the firmly clamped component 6 in the image plane is moved from left to right along the axis 36. Then the tensioning Device with the clamped component 6 in the image plane from bottom to top along the axis 37 moves.

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Laser Beam Processing (AREA)

Abstract

L'invention concerne un dispositif et un procédé de soudage par faisceau laser pour réaliser un cordon de soudure, en particulier annulaire, sur un élément constitutif, ledit dispositif de soudage par faisceau laser comportant une source de faisceau laser ainsi qu'au moins un premier moyen de déviation de faisceau laser et un second moyen de déviation de faisceau laser, la source de faisceau laser étant configurée pour produire un premier faisceau laser, le premier moyen de déviation de faisceau laser étant quant à lui configuré pour dévier le premier faisceau laser en un second faisceau laser et le second moyen de déviation de faisceau laser étant configuré pour dévier le second faisceau laser sur l'élément constitutif. Le premier moyen de déviation de faisceau laser est conçu de manière à pouvoir se déplacer par rapport au second moyen de déviation de faisceau laser. L'invention concerne également un dispositif de soudage par faisceau laser et un procédé de soudage par faisceau laser pour réaliser un cordon de soudure, en particulier annulaire, sur un élément constitutif, ledit dispositif comprenant au moins une source de faisceau laser pour produire un faisceau laser à sens de propagation principal, l'élément constitutif étant disposé sensiblement perpendiculairement au sens de propagation principal du faisceau laser.
PCT/EP2012/054263 2011-04-20 2012-03-12 Dispositif de soudage par faisceau laser et procédé de soudage par faisceau laser WO2012143181A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12709585.9A EP2699379A2 (fr) 2011-04-20 2012-03-12 Dispositif de soudage par faisceau laser et procédé de soudage par faisceau laser

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011007792.8 2011-04-20
DE102011007792A DE102011007792A1 (de) 2011-04-20 2011-04-20 Laserstrahlschweißvorrichtung und Laserstrahlschweißverfahren

Publications (2)

Publication Number Publication Date
WO2012143181A2 true WO2012143181A2 (fr) 2012-10-26
WO2012143181A3 WO2012143181A3 (fr) 2013-01-10

Family

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PCT/EP2012/054263 WO2012143181A2 (fr) 2011-04-20 2012-03-12 Dispositif de soudage par faisceau laser et procédé de soudage par faisceau laser

Country Status (3)

Country Link
EP (1) EP2699379A2 (fr)
DE (1) DE102011007792A1 (fr)
WO (1) WO2012143181A2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020163363A1 (fr) * 2019-02-05 2020-08-13 Dukane Ias, Llc Système et procédé de soudage au laser d'éléments tubulaires à l'aide d'un réflecteur optique fixe unitaire à surfaces réfléchissantes multiples, et dispositif médical
JP2022128431A (ja) * 2021-02-22 2022-09-01 デューケイン アイエーエス エルエルシー 複数個の反射部分を用いワークピースのアクセス不能エリアにレーザビームを到達させてそのワークピースをレーザ熔接するシステム及び方法
US11819940B2 (en) 2019-02-05 2023-11-21 Dukane Ias, Llc Systems and methods for laser-welding a workpiece with a laser beam that reaches inaccessible areas of the workpiece using multiple reflecting parts
US11931823B2 (en) 2019-02-05 2024-03-19 Dukane Ias, Llc Systems and methods for laser-welding a workpiece with a laser beam that reaches inaccessible areas of the workpiece using multiple reflecting parts

Families Citing this family (2)

* Cited by examiner, † Cited by third party
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CN104400996B (zh) * 2014-09-29 2017-01-18 山东新华医疗器械股份有限公司 软管与塞子的激光焊接装置及其焊接方法
EP3603871A1 (fr) * 2018-07-30 2020-02-05 Clean Lasersysteme GmbH Dispositif et procédé d'usinage d'une pièce par rayonnement laser

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DE102007035715A1 (de) 2006-12-27 2008-07-03 Robert Bosch Gmbh Laserstrahlbearbeitungsvorrichtung sowie Verfahren zum Justieren der Fokuslage

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020163363A1 (fr) * 2019-02-05 2020-08-13 Dukane Ias, Llc Système et procédé de soudage au laser d'éléments tubulaires à l'aide d'un réflecteur optique fixe unitaire à surfaces réfléchissantes multiples, et dispositif médical
US10926355B2 (en) 2019-02-05 2021-02-23 Dukane Ias, Llc Systems and methods for laser-welding tubular components using a single, fixed optical reflector with multiple reflecting surfaces
US11819940B2 (en) 2019-02-05 2023-11-21 Dukane Ias, Llc Systems and methods for laser-welding a workpiece with a laser beam that reaches inaccessible areas of the workpiece using multiple reflecting parts
US11931823B2 (en) 2019-02-05 2024-03-19 Dukane Ias, Llc Systems and methods for laser-welding a workpiece with a laser beam that reaches inaccessible areas of the workpiece using multiple reflecting parts
JP7457720B2 (ja) 2019-02-05 2024-03-28 デューケイン アイエーエス エルエルシー 複数個の反射面を有するユニタリな固定型光学反射器を用い管状部材をレーザ溶接するシステム及び方法並びに医用デバイス
JP2022128431A (ja) * 2021-02-22 2022-09-01 デューケイン アイエーエス エルエルシー 複数個の反射部分を用いワークピースのアクセス不能エリアにレーザビームを到達させてそのワークピースをレーザ熔接するシステム及び方法

Also Published As

Publication number Publication date
DE102011007792A1 (de) 2012-10-25
WO2012143181A3 (fr) 2013-01-10
EP2699379A2 (fr) 2014-02-26

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