DE102008064268A1 - Laser soldering method for connecting two plates, one of which has organic coating on one-side or both side, comprises burning and/or evaporating organic coating in connecting area of the plates to be connected with one another by laser - Google Patents
Laser soldering method for connecting two plates, one of which has organic coating on one-side or both side, comprises burning and/or evaporating organic coating in connecting area of the plates to be connected with one another by laser Download PDFInfo
- Publication number
- DE102008064268A1 DE102008064268A1 DE102008064268A DE102008064268A DE102008064268A1 DE 102008064268 A1 DE102008064268 A1 DE 102008064268A1 DE 102008064268 A DE102008064268 A DE 102008064268A DE 102008064268 A DE102008064268 A DE 102008064268A DE 102008064268 A1 DE102008064268 A1 DE 102008064268A1
- Authority
- DE
- Germany
- Prior art keywords
- laser
- organic coating
- plates
- components
- joining
- 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- Withdrawn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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/005—Soldering by means of radiant energy
- B23K1/0056—Soldering by means of radiant energy soldering by means of beams, e.g. lasers, E.B.
-
- 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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/19—Soldering, e.g. brazing, or unsoldering taking account of the properties of the materials to be soldered
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/34—Coated articles, e.g. plated or painted; Surface treated articles
Abstract
Description
Die vorliegende Erfindung betrifft ein lasergestütztes Fügeverfahren, insbesondere ein Laserlötverfahren, zum Verbinden zumindest zweier Bauteile, insbesondere Bleche, von denen zumindest eines eine ein- oder beidseitige organische Beschichtung aufweist.The The present invention relates to a laser-assisted joining method. in particular a laser soldering method, for connecting at least two components, in particular sheets, of which at least one has a one- or two-sided organic coating.
Beim
lasergestützten Fügen organisch beschichteter
Bleche, insbesondere beim Laserlöten solcher Bleche, die
aus der
Die vorliegende Erfindung beschäftigt sich mit dem Problem, für ein lasergestütztes Fügeverfahren eine verbesserte Ausführungsform anzugeben, die sich insbesondere durch eine zumindest verminderte Porenbildung in der Schweiß- bzw. Lötnaht auszeichnet. Des Weiteren beschäftigt sich die vorliegende Erfindung mit einer Laservorrichtung zur Durchführung eines solchen lasergestützten Fügeverfahrens.The The present invention addresses the problem of for a laser-assisted joining process to provide an improved embodiment, in particular by at least reduced pore formation in the welding or Lötnaht distinguished. Furthermore busy the present invention with a laser device to carry out such a laser-assisted joining method.
Die Erfindung löst diese Aufgabe durch die Gegenstände der unabhängigen Ansprüche.The Invention solves this problem by the objects the independent claims.
Die Erfindung beruht auf dem allgemeinen Gedanken, eine Energie eines Lasers vor einem eigentlichen Fügeprozess dazu zu nutzen, die organische Beschichtung zumindest zweier, miteinander zu fügender Bauteile, insbesondere Bleche, in einem späteren Verbindungsbereich durch Verdampfen und/oder Verbrennen zu entfernen. Durch das dem Fügeprozess vorangehende Entfernen der organischen Beschichtung kann die organische Beschichtung während des lasergestützten Fügeprozesses nicht mehr zu der sonst üblichen Porenbildung oder anderen Unregelmäßigkeiten in der Fügenaht führen. Aufgrund des Verhinderns der Porenbildung ist eine Fügenaht nun auch optisch ansprechender, wodurch diese Fügetechnik auch in einem Sichtbereich zum Einsatz kommen kann, während die Gefahr der Undichtheit der Fügenaht ebenfalls verringert ist.The Invention is based on the general idea, an energy of a Lasers before an actual joining process to use the organic coating at least two, to be joined together Components, in particular sheets, in a later connection area by evaporation and / or burning to remove. Through the joining process previous removal of the organic coating may be the organic Coating not during the laser-assisted joining process more about the usual pore formation or other irregularities in the seam. Due to the prevention the pore formation is now also visually appealing whereby this joining technique is also used in a field of vision can come while the danger of leaking seam is also reduced.
Im Wesentlichen ist das dem Fügeprozess vorangehende Entfernen der organischen Beschichtung mit einer Laservorrichtung durchführbar, die einen Laser oder zwei Laser oder einen Haupt- und einen Nebenfokus eines Lasers aufweist.in the The essential thing is the removal preceding the joining process the organic coating with a laser device feasible, the one laser or two lasers or one main and one minor focus a laser has.
In der Ausführungsform mit einem Laser kann der Laser dazu genutzt werden, um vor dem Löten den Verbindungsbereich der miteinander zu verbindenden Bauteile von der organischen Beschichtung zu reinigen, indem die organische Beschichtung durch Verbrennen und/oder Verdampfen entfernt wird. Da in diesem Fall nur ein Laser vorhanden ist, muss der Verbindungsbereich der zu verbindenden Bauteile zweimal von dem Laser überstrichen werden. Einmal zum Entfernen der organischen Beschichtung und einmal zum Fügen der zu verbindenden Bauteile. Dazu ist es vorteilhaft, wenn der Laser in seiner Leistung regulierbar ist, da bei dem Entfernen der organischen Beschichtung vermieden werden sollte, dass die Bauteile oder eine eventuelle, metallische Korrosionsschutzschicht durch den Laser beschädigt wird.In In the embodiment with a laser, the laser can do so used to solder the connection area before soldering the components to be joined together from the organic coating to clean it by burning the organic coating and / or evaporation is removed. Because in this case only one laser is present, the connection area of the components to be connected must be be scanned twice by the laser. Once to remove the organic coating and once to join the connecting components. For this it is advantageous if the laser is in its performance is adjustable, as in the removal of the organic Coating should be avoided that the components or a possible, metallic corrosion protection layer by the laser is damaged.
In der Ausführungsform mit zwei Lasern, wobei einer der Laser zum Fügen der Bauteile und der andere Laser zum Entfernen der organischen Beschichtung ausgebildet ist, kann ein Vorreinigungslaser zum Entfernen der organischen Beschichtung am Werkzeug integriert werden, der eine geringere Leistung aufweist als ein Fügelaser zum Fügen der Bauteile. Da die Zersetzungstemperatur der organischen Beschichtung üblicherweise deutlich geringer als die der metallischen Bauteile und der metallischen Antikorrosionsschicht ist, werden diese durch einen solchen integrierten Vorreinigungslaser nicht beeinträchtigt.In the embodiment with two lasers, wherein one of the lasers for joining the components and the other laser for removal the organic coating is formed, a pre-cleaning laser integrated to remove the organic coating on the tool which has a lower performance than a Fügelaser for joining the components. As the decomposition temperature of the organic coating usually significantly lower than the metallic components and the metallic anti-corrosion layer These are through such an integrated pre-cleaning laser not impaired.
In einer alternativen Ausführungsform weist die Laservorrichtung einen Laser auf, deren Laserstrahl in einen Haupt- und einen Nebenfokus aufgeteilt wird. Der Hauptfokus ist in seiner Intensität stärker als der Nebenfokus und wird zum Fügen der miteinander zu verbindenden Bauteile verwendet, während der Nebenfokus mit seiner geringeren Intensität zum Entfernen der organischen Beschichtung verwendet wird, ohne dabei die Bauteile oder eine eventuelle, metallische Korrosionsschutzschicht zu beschädigen.In an alternative embodiment, the laser device a laser whose laser beam into a main and a secondary focus is split. The main focus is in its intensity stronger than the secondary focus and becomes the joining used the components to be joined while the minor focus with its lower intensity removal the organic coating is used without affecting the components or to damage a possible metallic corrosion protection layer.
Weitere wichtige Merkmale und Vorteile der Erfindung ergeben sich aus den Unteransprüchen, aus der Zeichnung und aus der zugehörigen Figurenbeschreibung anhand der Zeichnung.Further important features and advantages of the invention will become apparent from the Subclaims, from the drawing and from the associated Description of the figures with reference to the drawing.
Es versteht sich, dass die vorstehend genannten und die nachstehend noch zu erläuternden Merkmale nicht nur in der jeweils angegebenen Kombination, sondern auch in anderen Kombinationen oder in Alleinstellung verwendbar sind, ohne den Rahmen der vorliegenden Erfindung zu verlassen.It will be understood that the features mentioned above and those yet to be explained below can be used not only in the respectively indicated combination but also in other combinations or alone, without the To leave the scope of the present invention.
Ein bevorzugtes Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird in der nachfolgenden Beschreibung näher erläutert.One preferred embodiment of the invention is in the Drawing and shown in the following description explained in more detail.
Die
einzige
Entsprechend
der
Des
Weiteren kann der Vorreinigungslaser
Ebenfalls
zweckmäßig ist es, den Vorreinigungslaser
In
einer bevorzugten Ausführungsform sind der Vorreinigungslaser
Die
so beschriebene Ausführungsform einer Laservorrichtung
Solche
erfindungsgemäßen Ausführungsformen ermöglichen
ein Laserschweißen oder Laserlöten, bei dem die
Fügenaht
Alternativ
zu der gemäß der
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 102006062346 A1 [0002] - DE 102006062346 A1 [0002]
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008064268A DE102008064268A1 (en) | 2008-12-20 | 2008-12-20 | Laser soldering method for connecting two plates, one of which has organic coating on one-side or both side, comprises burning and/or evaporating organic coating in connecting area of the plates to be connected with one another by laser |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008064268A DE102008064268A1 (en) | 2008-12-20 | 2008-12-20 | Laser soldering method for connecting two plates, one of which has organic coating on one-side or both side, comprises burning and/or evaporating organic coating in connecting area of the plates to be connected with one another by laser |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102008064268A1 true DE102008064268A1 (en) | 2009-08-27 |
Family
ID=40896873
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102008064268A Withdrawn DE102008064268A1 (en) | 2008-12-20 | 2008-12-20 | Laser soldering method for connecting two plates, one of which has organic coating on one-side or both side, comprises burning and/or evaporating organic coating in connecting area of the plates to be connected with one another by laser |
Country Status (1)
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DE (1) | DE102008064268A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105689896A (en) * | 2016-03-23 | 2016-06-22 | 昆山宝锦激光拼焊有限公司 | Coating removing and welding integrated laser processing method for hot-rolled steel plates |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006062346A1 (en) | 2006-12-22 | 2008-06-26 | Daimler Ag | Coating a broad strip with paint for making motor vehicles, comprises applying the paint to the broad strip, flash-hardening the paint at a first temperature, interrupting the hardening process and hardening the paint at second temperature |
-
2008
- 2008-12-20 DE DE102008064268A patent/DE102008064268A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006062346A1 (en) | 2006-12-22 | 2008-06-26 | Daimler Ag | Coating a broad strip with paint for making motor vehicles, comprises applying the paint to the broad strip, flash-hardening the paint at a first temperature, interrupting the hardening process and hardening the paint at second temperature |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105689896A (en) * | 2016-03-23 | 2016-06-22 | 昆山宝锦激光拼焊有限公司 | Coating removing and welding integrated laser processing method for hot-rolled steel plates |
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OAV | Applicant agreed to the publication of the unexamined application as to paragraph 31 lit. 2 z1 | ||
R120 | Application withdrawn or ip right abandoned |
Effective date: 20130130 |