WO2016120271A1 - Procédé et dispositif d'assemblage de composants par soudage laser - Google Patents

Procédé et dispositif d'assemblage de composants par soudage laser Download PDF

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Publication number
WO2016120271A1
WO2016120271A1 PCT/EP2016/051574 EP2016051574W WO2016120271A1 WO 2016120271 A1 WO2016120271 A1 WO 2016120271A1 EP 2016051574 W EP2016051574 W EP 2016051574W WO 2016120271 A1 WO2016120271 A1 WO 2016120271A1
Authority
WO
WIPO (PCT)
Prior art keywords
component
support
components
flexible element
laser
Prior art date
Application number
PCT/EP2016/051574
Other languages
German (de)
English (en)
Inventor
Axel Heinrici
Wolfgang Moll
Original Assignee
Reis Gmbh & Co. Kg Maschinenfabrik
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 Reis Gmbh & Co. Kg Maschinenfabrik filed Critical Reis Gmbh & Co. Kg Maschinenfabrik
Publication of WO2016120271A1 publication Critical patent/WO2016120271A1/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
    • B23K26/009—Working by laser beam, e.g. welding, cutting or boring using a non-absorbing, e.g. transparent, reflective or refractive, layer on the workpiece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1629—Laser beams characterised by the way of heating the interface
    • B29C65/1635—Laser beams characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. laser transmission welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1677—Laser beams making use of an absorber or impact modifier
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/536—Joining substantially flat single elements to hollow articles to form tubular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81455—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps being a fluid inflatable bag or bladder, a diaphragm or a vacuum bag for applying isostatic pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/301—Three-dimensional joints, i.e. the joined area being substantially non-flat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/721—Fibre-reinforced materials
    • B29C66/7212—Fibre-reinforced materials characterised by the composition of the fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2507/00—Use of elements other than metals as filler
    • B29K2507/04—Carbon

Definitions

  • the invention relates to a laser welding method for joining a first component arranged on a support from a second component, wherein the components are pressurized in their region to be welded by means of an element which is transparent to the laser beam.
  • the invention also relates to an arrangement for joining a first component to a second component by means of laser beams comprising a support for the components and an element, via which the components can be pressurized in the direction of the support at least in the joining region.
  • the laser beam source facing component is laser beam transparent.
  • Transparent means that laser beams can penetrate the component so that melting and joining can take place in the joining region between the first and second components.
  • the second component has to be laser-beam-absorbing at least in the joining region.
  • Transparent also includes materials that partially absorb the laser beams.
  • a module is positioned on a mounting plate integrally having a heater, wherein the module is force-urged on the side facing away from the mounting plate by a membrane which is subjected to bending deformation during lamination (DE 11 2011 102 313 T5).
  • the membrane starts from a chamber which is adjustable to a further chamber receiving the mounting plate.
  • Object of the present invention is to provide a method and an arrangement of the type mentioned in such a way that with structurally simple measures both a desired Druckbeiersch 1 agung of the area takes place, which is to be joined, as can also be ensured that the components do not be moved.
  • the components are arranged in a space bounded by the support and the element in the form of a flexible element and that the space is subjected to negative pressure such that the flexible element at least partially on the outer contour of at least the element facing the component applies.
  • the invention relates to a method for fixing and pressurizing laser-welding method on a support arranged and with a second component to be joined first component, wherein a flexible element is placed over the components and along the surface of the support, and of the support and the flexible element limited space is evacuated via openings in the surface such that the flexible element at least partially applied to outer contour of at least the flexible element facing component.
  • the flexible element without clamping or fastening means placed over the components and along the surface of the support and is fixed in position by means of the pressure prevailing in the space Lnterdrucks.
  • the components are fixed and positioned relative to one another by arranging the components during welding in a space bounded on one side by the support and on the other hand by the flexible element, which is in particular a foil.
  • the one or more ensures that when evacuating the space an at least partially applying to the or the outer contours takes place, which are facing the flexible element, ie in particular the film.
  • the component facing the laser radiation must be transparent to laser beams.
  • Transparent means that at least a portion of the laser radiation can pass through the component.
  • the component to be penetrated by the laser radiation up to the joining region should have a transmittance of at least 20%, preferably at least 50%. In that regard, the term "transparent" to understand.
  • Material from the group consisting of silicone, polyethylene terephthalate or contains this.
  • the film should have a thickness D of 0.5 mm ⁇ D ⁇ 3 mm.
  • An arrangement of the type mentioned above is characterized in that the element is a flexible element and that the flexible element and the support limit a space which is acted upon by negative pressure such that the flexible element at least partially to outer contour of at least the applies flexible component facing component.
  • the support has Absaugöffhungen over which the room is evacuated.
  • the intermediate space between the flexible element and the support can be evacuated in order to build up the required negative pressure so that the flexible element can adapt to and abut the outer contour of the component or components facing the flexible element, to the required
  • an arrangement for joining a first component to a second component by means of laser beams comprising a support for the components and a flexible element which limits the space with the support, and that the support has openings for evacuating the space to a Vacuum source are connected.
  • the flexible element is fixed in position on the support solely by the negative pressure prevailing in the space.
  • the flexible element is a film, which consists in particular of a material from the group of silicone, polyethylene terephthalate or this, wherein the film should have a thickness D of 0.5 mm ⁇ D ⁇ 3 mm.
  • the second component made of plastic, in particular fiber-reinforced plastic, and or the first component consists of at least one laser-absorbing additive, in particular carbon black, added plastic, preferably fiber-reinforced plastic.
  • Fig. 1 is a plan view of an arrangement for
  • Fig. 3 shows an enlarged view of a marked "B" area of
  • FIG. 2 and Fig. 4 shows the arrangement of FIG. 1 in a perspective view.
  • an arrangement 10 is shown, by means of a. first component 14 is connected to a second component 12 by laser transmission welding.
  • a laser beam source is required, of which the laser beam 16 is indicated in principle.
  • the components 12 and 14 are to be joined in a region 18 in which, due to the laser radiation, the components 14, 12 are to be melted, starting from the lower component 14, which is at least in the region 18, preferably a total of laser radiation absorbing.
  • the plastic component may contain corresponding additives such as carbon black.
  • the upper or second component 12 for laser beams is transparent in the drawing.
  • Transparent means that a transmittance for laser radiation of at least 20%, preferably 50%, is given.
  • the upper or second component 12 which may also be made of plastic, possibly glass-fiber reinforced plastic, must transmit laser beams to an extent such that the joining region 18 is melted, ie the laser radiation in the near-surface region of the lower or first component 14 is converted into heat. so that material melts and thus the components 12 and 14 are connected together.
  • the components 12, 14 In order to be able to fuse the joining partners, that is to say the components 12, 14 by heat conduction, sufficient thermal contact must be ensured. For this purpose, it is necessary that the components 12, 14 are pressurized in the area to be joined. In order to realize the relevant measures, the components 12, 14 are arranged on a support 20 to be designated as a support. The components 12, 14 are then covered by a film 22, which is also transparent to laser beams.
  • the film 22 may consist of silicone or polyethylene terephthalate. Other suitable laser-transparent materials are also suitable. Other prerequisites for the material used is that a sufficient
  • the film 22 should have a filament resistance of at least 240 ° C, preferably at least 260 ° C.
  • the film 22 is placed over the components 12, 14 and along the surface 24 of the support, so the carrier 20, and then via openings 26 extending from the surface 24 of the carrier 20, the gap 25 between the film 22 and the Surface 24 of the carrier 20 to evacuate.
  • the film 22 wraps around the components 12, 14 in their regions facing the film 22, i. H. the film 22 adapts to the outer contours of the regions facing the film 22, the required pressure being applied to the upper or second component 12 in the direction of the lower, depending on the negative pressure prevailing in the space 25 extending between the film 22 and the carrier 20 or first component 14 is generated.
  • the required Druckbeaufschl ensured agitation to ensure the necessary thermal contact between the components 12, 14, so that a proper and reproducible joining when exposed to the laser radiation 16 can be done.
  • the film 22 ensures that the components 12, 14 can not slip against each other, so that an unambiguous positioning takes place.
  • the film 22 is fixed in position by the build-up negative pressure on the surface 24 of the support, without the need for separate fastening or clamping and clamping elements, by means of which the film is fixed, measures that the state of the art compelling dictates.
  • the components 12, 14 are pressurized to the desired extent, so that even thin components can be welded together without the risk of deformation takes place; because As mentioned, the negative pressure in the intermediate space 15 between the film 22 and the carrier 20 is adjustable to the required extent.
  • the film 22 should in particular have a thickness of between 0.5 mm and 3 mm, although this does not restrict the teaching according to the invention.
  • the film 22 should, as mentioned, be transparent to laser beams in the sense indicated above and have the required heat resistance.
  • the film 22 should be flexible to an extent that conforms to the outer contour of at least the upper member 12, wherein depressions or the like emanating from the surface need not be filled. Rather, the film 22 must be applied substantially to the flat surfaces of thelusterkonrur of the upper part 22. But also an application to areas of the outer contour of the lower component 1.4 takes place, as can be seen in principle from the graphic representation.
  • Ura to produce the required laser radiation z. B. a diode laser with a wavelength of 940 nm and a mean regulated power of 500 W are used.
  • the upper part 12 is irradiated to a large extent by the laser radiation, so that the remaining energy in the joining zone, ie in the region 26 of the laser-absorbing partner, ie in the lower part 14, is converted into near-surface heat until melting takes place and the components 12, 14 connect with each other.
  • plastics with high fiber contents and material thicknesses at low levels of transmission of z.
  • Welding area means that welds can be made.
  • the laser beam is imaged with a corresponding optics in a line focus, wherein z. B. Spot dimensions of 1 10 mm apply.
  • the laser beam source can then be guided along the weld to be produced by means of a handling device such as robots.
  • the carrier 20 may be formed as a rotary tilting table, so that all positions of the weld to be produced by the robot and thus the Laserstrah lenqu eil e can be controlled.
  • the laser power can be controlled by a pyrometer during the welding process to prevent decomposition of the film 22.
  • the film 22 itself can be reused for successive welding processes of components to be joined.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Toxicology (AREA)
  • Plasma & Fusion (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Laser Beam Processing (AREA)

Abstract

La présente invention concerne un procédé de soudage laser et un dispositif d'assemblage d'un premier composant (14) placé sur un support (20) et d'un second composant (12), lesquels composants (12, 14) sont mis sous pression au moyen d'un élément transparent au rayonnement laser (16) dans la région dans laquelle ils doivent être soudés. Selon l'invention, afin d'appliquer une pression de manière définie sur la région d'assemblage, les composants (12, 14) sont placés dans un espace (25) délimité par le support (20) et l'élément (22) se présentant sous forme d'un élément flexible et cet espace (25) est soumis à une pression négative de manière que l'élément flexible (22) s'applique au moins par endroits sur le contour extérieur au moins du composant (12) faisant face à l'élément.
PCT/EP2016/051574 2015-01-28 2016-01-26 Procédé et dispositif d'assemblage de composants par soudage laser WO2016120271A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015101259.6A DE102015101259A1 (de) 2015-01-28 2015-01-28 Verfahren und Anordnung zum Fügen von Bauteilen mittels Laserschweißens
DE102015101259.6 2015-01-28

Publications (1)

Publication Number Publication Date
WO2016120271A1 true WO2016120271A1 (fr) 2016-08-04

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Application Number Title Priority Date Filing Date
PCT/EP2016/051574 WO2016120271A1 (fr) 2015-01-28 2016-01-26 Procédé et dispositif d'assemblage de composants par soudage laser

Country Status (2)

Country Link
DE (1) DE102015101259A1 (fr)
WO (1) WO2016120271A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1201401A2 (fr) * 2000-10-16 2002-05-02 Centre d'Etude et de Recherche pour l'Automobile ( CERA) Dispositif pour fixer un revêtement sur un support en matière plastique
EP1306196A1 (fr) * 2001-10-24 2003-05-02 Telsonic AG Dispositif support, dispositif pour souder des pièces et procédé pour mettre à disposition un dispositif support
WO2010069599A1 (fr) * 2008-12-19 2010-06-24 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Dispositif et procédé d'assemblage par faisceau laser
DE102012216664A1 (de) * 2012-09-18 2014-03-20 Lpkf Laser & Electronics Ag Strahlgestützte Fügemaschine, insbesondere Laser-Durchstrahl-Schweißeinrichtung und damit hergestellter Hohlkörper

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008114420A (ja) * 2006-11-01 2008-05-22 Hamamatsu Photonics Kk レーザ溶着方法及びレーザ溶着装置、並びに樹脂製品の製造方法
KR101493386B1 (ko) 2010-07-09 2015-02-13 듀폰-미츠이 폴리케미칼 가부시키가이샤 태양 전지 모듈의 제조 방법

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1201401A2 (fr) * 2000-10-16 2002-05-02 Centre d'Etude et de Recherche pour l'Automobile ( CERA) Dispositif pour fixer un revêtement sur un support en matière plastique
EP1306196A1 (fr) * 2001-10-24 2003-05-02 Telsonic AG Dispositif support, dispositif pour souder des pièces et procédé pour mettre à disposition un dispositif support
WO2010069599A1 (fr) * 2008-12-19 2010-06-24 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Dispositif et procédé d'assemblage par faisceau laser
DE102012216664A1 (de) * 2012-09-18 2014-03-20 Lpkf Laser & Electronics Ag Strahlgestützte Fügemaschine, insbesondere Laser-Durchstrahl-Schweißeinrichtung und damit hergestellter Hohlkörper

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Publication number Publication date
DE102015101259A1 (de) 2016-07-28

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