DE102018119990A1 - Heating element, system and method for resistance welding thermoplastic components, in particular for the manufacture of aircraft - Google Patents
Heating element, system and method for resistance welding thermoplastic components, in particular for the manufacture of aircraft Download PDFInfo
- Publication number
- DE102018119990A1 DE102018119990A1 DE102018119990.2A DE102018119990A DE102018119990A1 DE 102018119990 A1 DE102018119990 A1 DE 102018119990A1 DE 102018119990 A DE102018119990 A DE 102018119990A DE 102018119990 A1 DE102018119990 A1 DE 102018119990A1
- Authority
- DE
- Germany
- Prior art keywords
- heating element
- components
- welded
- welding
- aircraft
- 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.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 132
- 238000003466 welding Methods 0.000 title claims abstract description 82
- 238000000034 method Methods 0.000 title claims abstract description 36
- 229920001169 thermoplastic Polymers 0.000 title claims abstract description 18
- 239000004416 thermosoftening plastic Substances 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 239000012815 thermoplastic material Substances 0.000 claims abstract description 17
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 7
- 239000004917 carbon fiber Substances 0.000 claims abstract description 7
- 230000002787 reinforcement Effects 0.000 claims abstract description 7
- 239000000835 fiber Substances 0.000 claims description 21
- 239000002131 composite material Substances 0.000 description 7
- 230000003014 reinforcing effect Effects 0.000 description 7
- 230000033001 locomotion Effects 0.000 description 5
- 239000012212 insulator Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002996 emotional effect Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
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- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/88—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced
- B29C70/882—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced partly or totally electrically conductive, e.g. for EMI shielding
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- 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
- B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
- B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
- B29C65/3436—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising independent continuous fibre-reinforcements
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- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
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- B29C65/3468—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the means for supplying heat to said heated elements which remain in the join, e.g. special electrical connectors of windings
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- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
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- B29C66/43—Joining a relatively small portion of the surface of said articles
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- 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
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- 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
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- B29C66/721—Fibre-reinforced materials
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- 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
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- 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
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- B29C66/739—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
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- B29C66/73921—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
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- B64F5/00—Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
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- B29C66/735—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the extensive physical properties of the parts to be joined
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- Y02T50/40—Weight reduction
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Abstract
Ein Heizelement (30) zum Widerstandsschweißen thermoplastischer Bauteile, insbesondere für die Herstellung von Luftfahrzeugen, umfasst ein oder mehrere elektrisch leitfähige Elemente (30a) vorzugsweise aus Kohlefasern, die sich beim Anlegen einer elektrischen Spannung an das Heizelement (30) erhitzen, um ein erstes Bauteil (11), das thermoplastisches Material umfasst, mit einem zweiten Bauteil (12), das thermoplastisches Material umfasst, in einem durch das Heizelement (30) elektrisch beheizten Bereich zu verschweißen. Das Heizelement (30) ist so ausgestaltet, dass es nach dem Schweißvorgang zwischen den verschweißten Bauteilen (11, 12) verbleibt und eine Verstärkung zur Erhöhung der Festigkeit der Schweißverbindung bildet. Das Heizelement (30) ist Teil eines Systems und eines Verfahrens zum Widerstandsschweißen von Bauteilen, insbesondere bei der Herstellung eines Rumpfs. A heating element (30) for resistance welding thermoplastic components, in particular for the manufacture of aircraft, comprises one or more electrically conductive elements (30a), preferably made of carbon fibers, which heat up when a voltage is applied to the heating element (30) around a first component (11), which comprises thermoplastic material, to be welded to a second component (12), which comprises thermoplastic material, in a region which is electrically heated by the heating element (30). The heating element (30) is designed such that it remains between the welded components (11, 12) after the welding process and forms a reinforcement to increase the strength of the welded connection. The heating element (30) is part of a system and a method for resistance welding components, in particular in the manufacture of a fuselage.
Description
Die Erfindung betrifft ein Heizelement und ein System zum Widerstandsschweißen thermoplastischer Bauteile, insbesondere für die Herstellung von Luftfahrzeugen. Weiterhin betrifft die Erfindung ein Verfahren zum Widerstandsschweißen thermoplastischer Bauteile, sowie ein Luftfahrzeug.The invention relates to a heating element and a system for resistance welding thermoplastic components, in particular for the manufacture of aircraft. Furthermore, the invention relates to a method for resistance welding thermoplastic components, and an aircraft.
Zum Bau moderner Flugzeuge bzw. Luftfahrzeuge werden vermehrt Bauteile oder Komponenten aus Verbundwerkstoffen bzw. Faserverbundwerkstoffen eingesetzt. Die einzelnen Komponenten werden beispielsweise durch Nieten, Kleben, Verschrauben oder Schweißen miteinander verbunden.Components or components made of composite materials or fiber composite materials are increasingly being used to build modern aircraft or aircraft. The individual components are connected to one another, for example, by riveting, gluing, screwing or welding.
Der Rumpf eines Luftfahrzeugs besteht meist aus einem festen Rahmen aus Verstärkungselementen, die eine Haut aus einem Komposit- bzw. Verbundwerkstoff tragen. Als Verstärkungselemente dienen Stringer und Spanten, wobei die Stringer in Längsrichtung des Rumpfes und die Spanten in Umfangsrichtung des Rumpfes verlaufen. Bei der Herstellung eines Flugzeugrumpfes werden meist einzelne Rumpfsegmente getrennt voneinander gefertigt und anschließend zusammengefügt, um den gesamten Rumpf zu bilden.The fuselage of an aircraft usually consists of a solid frame made of reinforcing elements that support a skin made of a composite or composite material. Stringer and ribs serve as reinforcing elements, the stringers running in the longitudinal direction of the fuselage and the ribs running in the circumferential direction of the fuselage. When manufacturing an aircraft fuselage, individual fuselage segments are usually manufactured separately from one another and then joined together to form the entire fuselage.
Häufig werden die überlappenden Hautabschnitte der verschiedenen Segmente mit Nieten verbunden. Die Nietverbindungen sind jedoch punktuell und können daher Spannungskonzentrationen verursachen. Nietverbindungen sind aufwändig herzustellen.The overlapping skin sections of the different segments are often connected with rivets. However, the rivet connections are selective and can therefore cause stress concentrations. Rivet connections are complex to produce.
Beim Kleben müssen die Klebeflächen aufwendig vorbereitet werden und es ist ein hoher Zeitaufwand für die Aushärtung des verwendeten Klebstoffs erforderlich. Beim Verbinden der Komponenten durch Verschrauben sind Bohrungen erforderlich, wodurch sich Nachteile in der Struktur des jeweiligen Bauteils ergeben können.When gluing, the adhesive surfaces have to be prepared in a complex manner and it takes a lot of time to cure the adhesive used. When connecting the components by screwing holes are required, which can result in disadvantages in the structure of the respective component.
Die Druckschrift
Die Druckschrift
Die Druckschrift
Beim Verbinden einzelner Rumpfsegmente müssen die Schweißverbindungen sehr großen Belastungen standhalten. Insbesondere Im Fall von Rumpflängen, die z.B. im Bereich von 24 Metern liegen können, muss eine entsprechend lange und sehr starke Verbindung der Rumpfsegmente erfolgen.When connecting individual fuselage segments, the welded connections have to withstand very high loads. Especially in the case of hull lengths, e.g. can be in the range of 24 meters, there must be a correspondingly long and very strong connection of the fuselage segments.
Die Erfindung hat sich zur Aufgabe gestellt, bei der Herstellung von Luftfahrzeugen thermoplastische Bauteile über große Längen mit erhöhter Festigkeit zu verbinden. Insbesondere sollen Rumpfsegmente verschweißt werden können, wobei eine hohe Qualität und Festigkeit der Verbindung gewährleistet ist.The object of the invention is to combine thermoplastic components over great lengths with increased strength in the manufacture of aircraft. In particular, fuselage segments should be able to be welded, with a high quality and strength of the connection being guaranteed.
Zum Lösen dieser Aufgabe schafft die Erfindung ein Heizelement zum Widerstandsschweißen thermoplastischer Bauteile, insbesondere für die Herstellung von Luftfahrzeugen, umfassend ein oder mehrere elektrisch leitfähige Elemente, die sich beim Anlegen einer elektrischen Spannung an das Heizelementerhitzen, um ein erstes Bauteil, das thermoplastisches Material umfasst, mit einem zweiten Bauteil, das thermoplastisches Material umfasst, in einem durch das Heizelement elektrisch beheizten Bereich zu verschweißen, wobei das Heizelement so ausgestaltet ist, dass es nach dem Schweißvorgang zwischen den verschweißten Bauteilen verbleibt und dort eine Verstärkung bzw. ein Verstärkungselement zur Erhöhung der Festigkeit der Schweißverbindung bildet.To achieve this object, the invention provides a heating element for resistance welding thermoplastic components, in particular for the manufacture of aircraft, comprising one or more electrically conductive elements which heat up when a voltage is applied to the heating element, around a first component comprising thermoplastic material, to be welded to a second component, which comprises thermoplastic material, in a region which is electrically heated by the heating element, the heating element being designed such that it remains between the welded components after the welding process and there is a reinforcement or a reinforcing element for increasing the strength the welded connection.
Durch das multifunktionale Heizelement zum Widerstandsschweißen wird erreicht, dass auch große Bauteile mit hoher Festigkeit bei geringem Zeitaufwand verbunden werden können. Insbesondere können bei der Herstellung von Luftfahrzeugen auch große Rumpfsegmente miteinander verbunden werden um einen Rumpf herzustellen, der an den Verbindungsnähten eine erhöhte Festigkeit aufweist.The multifunctional heating element for resistance welding means that even large components with high strength can be connected in a short amount of time. In particular, in the manufacture of aircraft, large fuselage segments can also be connected to one another in order to produce a fuselage which has increased strength at the connecting seams.
Bevorzugt sind die elektrisch leitfähigen Elemente im Heizelement in Richtung der Hauptlast ausgerichtet, die auf die miteinander verschweißten Bauteile wirkt, insbesondere im verbauten Zustand der verschweißten Bauteile. The electrically conductive elements in the heating element are preferably oriented in the direction of the main load which acts on the components which are welded to one another, in particular when the welded components are installed.
Vorteilhaft sind die elektrisch leitfähigen Elemente als Fasern ausgebildet, insbesondere als Karbonfasern.The electrically conductive elements are advantageously designed as fibers, in particular as carbon fibers.
Bevorzugt ist die Orientierung der leitfähigen Elemente senkrecht zur Richtung
Insbesondere kann die Hauptlast eine Zugkraft sein, die die verschweißten Bauteile im verbauten Zustand auseinanderzieht.In particular, the main load can be a tensile force that pulls the welded components apart when installed.
Vorteilhaft erstrecken sich die elektrisch leitenden Elemente über das Heizelement hinaus und bilden dort ein Kontaktelement für die Stromversorgung.The electrically conductive elements advantageously extend beyond the heating element and form a contact element there for the power supply.
Insbesondere sind die Bauteile Elemente eines Rumpfes eines Luftfahrzeugs, die entlang einer Schweißnaht zu verbinden sind, wobei die Hauptlast beispielsweise senkrecht zur Richtung
Bevorzugt ist ein begrenzter Teilbereich des Heizelements durch Stromfluss heizbar, dessen Position im Heizelement beim Schweißvorgang veränderbar ist. Insbesondere heizen sich dabei außerhalb des begrenzten Teilbereichs gelegene Bereiche des Heizelements nicht durch Stromfluss in den dort angeordneten leitfähigen Elementen auf.A limited portion of the heating element can preferably be heated by current flow, the position of which in the heating element can be changed during the welding process. In particular, regions of the heating element located outside the limited partial region do not heat up due to current flow in the conductive elements arranged there.
Vorteilhaft umfasst das Heizelement mindestens eine Kontaktfläche zur Kontaktierung einer relativ zum Heizelement bewegbaren Elektrode.The heating element advantageously comprises at least one contact surface for contacting an electrode that is movable relative to the heating element.
Gemäß einem Aspekt schafft die Erfindung ein System zum Verbinden thermoplastischer Bauteile durch Widerstandsschweißen, insbesondere für die Herstellung von Luftfahrzeugen, das ein erfindungsgemäßes Heizelement umfasst.In one aspect, the invention provides a system for connecting thermoplastic components by resistance welding, in particular for the manufacture of aircraft, which comprises a heating element according to the invention.
Bevorzugt weist das System zum Widerstandsschweißen thermoplastischer Bauteile eine Andruckeinheit auf, um die thermoplastischen Bauteile beim Verschweißen aneinander zu drücken.The system for resistance welding of thermoplastic components preferably has a pressure unit in order to press the thermoplastic components against one another during welding.
Vorteilhaft umfasst das System mindestens eine bewegbare Elektrode auf, die sich beim Schweißvorgang über die Kontaktfläche des Heizelements bewegt, um nacheinander verschiedene Teilbereiche des Heizelements kontinuierlich mit Strom zu versorgen. Insbesondere ist dabei die bewegbare Elektrode als Rolle ausgebildet, die beim Schweißvorgang auf einer Kontaktfläche des Heizelements abrollt.The system advantageously comprises at least one movable electrode, which moves over the contact surface of the heating element during the welding process in order to continuously supply different partial regions of the heating element with current. In particular, the movable electrode is designed as a roller that rolls on a contact surface of the heating element during the welding process.
Gemäß einem weiteren Aspekt schafft die Erfindung ein Verfahren zum Verbinden thermoplastischer Bauteile durch Widerstandsschweißen, insbesondere für die Herstellung von Luftfahrzeugen, bei dem ein erstes Bauteil, das thermoplastisches Material umfasst, mit einem zweiten Bauteil, das thermoplastisches Material umfasst, an einem elektrisch beheizten Bereich der Bauteile verschweißt wird, wobei das Heizelement nach dem Schweißvorgang zwischen den verschweißten Bauteilen verbleibt und dort eine Verstärkung bzw. ein Verstärkungselement zur Erhöhung der Festigkeit der Schweißverbindung der miteinander verschweißten Bauteile bildet.According to a further aspect, the invention provides a method for connecting thermoplastic components by resistance welding, in particular for the manufacture of aircraft, in which a first component, which comprises thermoplastic material, with a second component, which comprises thermoplastic material, on an electrically heated area of the Components are welded, the heating element remaining between the welded components after the welding process and forming a reinforcement or a reinforcing element there to increase the strength of the welded connection of the components welded together.
Vorzugsweise wird dabei ein erfindungsgemäßes Heizelement und/oder ein erfindungsgemäßes System nach einem der Ansprüche verwendet.A heating element according to the invention and / or a system according to the invention according to one of the claims is preferably used.
Gemäß einem weiteren Aspekt schafft die Erfindung ein Luftfahrzeug, das Bauteile aufweist, die mit einem erfindungsgemäßen Heizelement und/oder mit einem erfindungsgemäßen System verschweißt sind.According to a further aspect, the invention provides an aircraft which has components which are welded to a heating element according to the invention and / or to a system according to the invention.
Vorteile und Details, die im Zusammenhang mit der erfindungsgemäßen Heizelement beschrieben sind, gelten auch für das erfindungsgemäße System und das erfindungsgemäße Verfahren, ebenso wie Vorteile und Details, die im Zusammenhang mit dem erfindungsgemäßen System oder Verfahren beschrieben sind, auch für das erfindungsgemäße Heizelement gelten.Advantages and details that are described in connection with the heating element according to the invention also apply to the system and the method according to the invention, as well as advantages and details that are described in connection with the system or method according to the invention also apply to the heating element according to the invention.
Ein Ausführungsbeispiel der Erfindung wird im Folgenden anhand der beigefügten Zeichnungen näher erläutert. Darin zeigt:
-
1 schematisch eine Schnittansicht einer bevorzugten Ausführungsform des erfindungsgemäßen Systems mit dem erfindungsgemäßen Heizelement, beim Herstellen einer Überlappungsverbindung im Rumpfbereich eines Flugzeugs; -
2 eine schematische Ansicht einer bekannten Vorrichtung zum Widerstandsschweißen; -
3 schematisch eine Draufsicht auf die in1 gezeigte bevorzugte Ausführungsform der Erfindung bei der Herstellung einer Schweißverbindung zweier überlappender Bauteile; -
4 einen Querschnitt durch ein multifunktionales Heizelement gemäß der Erfindung; -
5 eine Seitenansicht einer hinteren Rumpfsektion eines Verkehrsflugzeugs mit erfindungsgemäß verschweißten Längsnähten; -
6 eine Schnittansicht der in5 gezeigten Rumpfsektion mit erfindungsgemäß verschweißten Längsnähten; -
7 eine Schnittansicht einer erfindungsgemäß geschweißten Längsnaht eines Verkehrsflugzeugs.
-
1 schematically shows a sectional view of a preferred embodiment of the system according to the invention with the heating element according to the invention, when establishing an overlap connection in the fuselage area of an aircraft; -
2 a schematic view of a known device for resistance welding; -
3 schematically a top view of the in1 shown preferred embodiment of the invention in the production of a welded connection of two overlapping components; -
4 a cross section through a multifunctional heating element according to the invention; -
5 a side view of a rear fuselage section of a commercial aircraft with longitudinal seams welded according to the invention; -
6 a sectional view of the in5 shown fuselage section with longitudinal seams welded according to the invention; -
7 a sectional view of a longitudinal seam welded according to the invention of a commercial aircraft.
Das Heizelement
Die elektrisch leitenden Fasern
Das Heizelement
Das Heizelement
Zwei Kontaktelemente in Form von Elektroden
Die beiden als bewegbare Elektroden
Der durch Stromfluss in den elektrisch leitenden Fasern
Die bewegbaren Elektroden
Auf der ersten, bzw. in der
Auf der zweiten, bzw. in der
Die Kontaktstellen innerhalb der Kontaktbereiche
Durch das Abrollen der rollenförmig ausgestalteten Elektroden
Die beiden miteinander zu verbindenden Bauteile
Die beiden Hautabschnitte bzw. Bauteile
Im Betrieb werden die beiden Andruckelemente bzw. Andruckrollen
Die
Der obere Hautabschnitt
Auf der rechten Seite, neben der oberen bzw. ersten Andruckrolle
Auf der linken Seite neben der unteren bzw. zweiten Andruckrolle
Die beiden Elektroden
Das Heizelement
Um die beheizte Schweißzone in der Längsrichtung
Die in
Die Richtungen der im Heizelement
An den beiden in der Figur rechts und links gelegenen Enden des Heizelements
Nachfolgend wird anhand der
Der erste Hautabschnitt
Nach dem Zusammenschweißen verbleibt das Heizelement
Das Heizelement
Zum Ausbilden einer in Schweißrichtung lokal begrenzten Schweißzone wird das Heizelement
Dabei werden unterschiedliche Teilbereiche des Heizelements
Hierzu werden bewegbare Elektroden
Andruckrollen
Bei dem Verfahren werden die jeweils für den Schweißvorgang benötigten Parameter berücksichtigt. Zum Beispiel liegt die Schweißgeschwindigkeit bevorzugt bei 100 bis 350 mm/min. Als Andruckelement
In
In
Durch die Erfindung wird ein multifunktionales Heizelement geschaffen, das einerseits zum Erhitzen der Schweißzone beim Widerstandsschweißen dient, und andererseits eine strukturmechanische Verstärkung der miteinander verschweißten Bauteile bildet. Insbesondere die Orientierung der Fasern des Heizelements in Richtung der Hauptbeanspruchung oder Hauptlast ermöglicht eine erhöhte Lastübertragungsfähigkeit.The invention creates a multifunctional heating element which serves on the one hand to heat the welding zone during resistance welding and on the other hand forms a structural mechanical reinforcement of the components welded together. In particular, the orientation of the fibers of the heating element in the direction of the main stress or main load enables increased load transmission capability.
Die Erfindung führt zu einer erhöhten Festigkeit im Bereich der Schweißverbindung gegenüber herkömmlichen Verbindungen durch thermoplastisches Schweißen, bei denen nur die thermoplastische Matrix zum Verbinden der Bauteile dient. Insbesondere können hierdurch sehr lange Bauteile, insbesondere Rumpfsegmente, mittels Widerstandsschweißen miteinander verbunden werden.The invention leads to increased strength in the area of the welded connection compared to conventional connections by thermoplastic welding, in which only the thermoplastic matrix serves to connect the components. In particular, very long components, in particular fuselage segments, can be connected to one another by means of resistance welding.
Durch eine kontinuierlich fortschreitende Beheizung nur lokal am Ort der momentan beheizten Schweißzone werden darüber hinaus Energieverluste beim Widerstandsschweißen, insbesondere von relativ langen Bauteilen, minimiert. Darüber hinaus wird durch das erfindungsgemäße Verfahren unter Verwendung des multifunktionalen Heizelements der Zeitaufwand bei der Produktion insbesondere von Rümpfen von Luftfahrzeugen reduziert.Continuous heating only locally at the location of the currently heated welding zone also minimizes energy losses during resistance welding, in particular of relatively long components. In addition, the method according to the invention using the multifunctional heating element reduces the time required for the production of fuselages, in particular of aircraft.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 1111
- erstes Bauteil / erster Hautabschnittfirst component / first skin section
- 1212
- zweites Bauteil / zweiter Hautabschnittsecond component / second skin section
- 3030
- Heizelementheating element
- 30a30a
- elektrisch leitende Elemente oder Fasernelectrically conductive elements or fibers
- 31, 3231, 32
- Kontaktelement / ElektrodeContact element / electrode
- 31a, 32a31a, 32a
- Drehachsenrotational axes
- 3434
- Isolatoreninsulators
- 35, 3635, 36
- Kontaktbereichecontact areas
- 37, 3837, 38
- Klemmelementeclamping elements
- 41, 4241, 42
- Andruckelement bzw. AndruckrollePressure element or pressure roller
- 41a,42a41a, 42a
- Drehachsenrotational axes
- 5050
- Spannungsquellevoltage source
- 8080
- Rumpfsektionfuselage section
- 8181
- Längsnahtlongitudinal seam
- MM
- Hauptlast bzw. HauptlastrichtungMain load or main load direction
- XX
- Längsrichtunglongitudinal direction
- YY
- Quer- oder Umfangsrichtung Transverse or circumferential direction
- 110, 120110, 120
- Bauteilecomponents
- 130130
- Heizelementheating element
- 131, 132131, 132
- Verbindungsklammernconnecting clips
- 133133
- Spannungsquellevoltage source
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES 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 of documents listed by the applicant has been generated automatically and is only included for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturPatent literature cited
- DE 102015110193 A1 [0006]DE 102015110193 A1 [0006]
- DE 102007003357 A1 [0007]DE 102007003357 A1 [0007]
- EP 3040265 A1 [0008]EP 3040265 A1 [0008]
Claims (15)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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DE102018119990.2A DE102018119990A1 (en) | 2018-08-16 | 2018-08-16 | Heating element, system and method for resistance welding thermoplastic components, in particular for the manufacture of aircraft |
EP19189284.3A EP3611010A1 (en) | 2018-08-16 | 2019-07-31 | Heating element, device, and method for resistance welding of thermoplastic components, in particular for the production of aircraft, and aircraft |
US16/540,396 US20200055259A1 (en) | 2018-08-16 | 2019-08-14 | Heating element, device, and method for resistance welding of thermoplastic components, in particular for the production of aircraft, and aircraft |
CN201910757022.5A CN110834137A (en) | 2018-08-16 | 2019-08-16 | Heating element, device and method for resistance welding thermoplastic parts, in particular for aircraft production, and aircraft |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE102018119990.2A DE102018119990A1 (en) | 2018-08-16 | 2018-08-16 | Heating element, system and method for resistance welding thermoplastic components, in particular for the manufacture of aircraft |
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DE102018119990A1 true DE102018119990A1 (en) | 2020-02-20 |
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DE102018119990.2A Pending DE102018119990A1 (en) | 2018-08-16 | 2018-08-16 | Heating element, system and method for resistance welding thermoplastic components, in particular for the manufacture of aircraft |
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DE (1) | DE102018119990A1 (en) |
Citations (4)
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US20050184053A1 (en) * | 2003-10-29 | 2005-08-25 | Wilkinson Andrew S. | Method for bonding thermoplastics |
US20090032184A1 (en) * | 2005-04-08 | 2009-02-05 | Ali Yousefpour | Resistance Welding of Thermoplastics |
US20180178457A1 (en) * | 2015-06-26 | 2018-06-28 | Magna Exteriors Inc. | Resistive implant welding carbon fiber composite thermoplastics |
DE102017217294A1 (en) * | 2017-09-28 | 2019-03-28 | Airbus Operations Gmbh | Method for resistance welding of fiber composite components to a fiber composite structure, fiber composite structure and fiber composite component |
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2018
- 2018-08-16 DE DE102018119990.2A patent/DE102018119990A1/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US20050184053A1 (en) * | 2003-10-29 | 2005-08-25 | Wilkinson Andrew S. | Method for bonding thermoplastics |
US20090032184A1 (en) * | 2005-04-08 | 2009-02-05 | Ali Yousefpour | Resistance Welding of Thermoplastics |
US20180178457A1 (en) * | 2015-06-26 | 2018-06-28 | Magna Exteriors Inc. | Resistive implant welding carbon fiber composite thermoplastics |
DE102017217294A1 (en) * | 2017-09-28 | 2019-03-28 | Airbus Operations Gmbh | Method for resistance welding of fiber composite components to a fiber composite structure, fiber composite structure and fiber composite component |
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