DE102014203559A1 - Method and device for producing a material connection - Google Patents
Method and device for producing a material connection Download PDFInfo
- Publication number
- DE102014203559A1 DE102014203559A1 DE102014203559.7A DE102014203559A DE102014203559A1 DE 102014203559 A1 DE102014203559 A1 DE 102014203559A1 DE 102014203559 A DE102014203559 A DE 102014203559A DE 102014203559 A1 DE102014203559 A1 DE 102014203559A1
- Authority
- DE
- Germany
- Prior art keywords
- components
- inductor
- pressing element
- cooling
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 32
- 239000000463 material Substances 0.000 title claims description 8
- 238000005304 joining Methods 0.000 claims abstract description 47
- 238000003825 pressing Methods 0.000 claims abstract description 44
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 239000004020 conductor Substances 0.000 claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 claims abstract description 4
- 238000001816 cooling Methods 0.000 claims description 38
- 239000002826 coolant Substances 0.000 claims description 21
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 2
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- 239000004416 thermosoftening plastic Substances 0.000 description 7
- 238000007596 consolidation process Methods 0.000 description 6
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- 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
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- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 1
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
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- B29C66/8181—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 cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects
- B29C66/81811—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 cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects of the welding jaws
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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
- 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
- B29C66/73—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
- 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
- B29C66/7392—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
- 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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- 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
- B29C66/73—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
- 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
- B29C66/7394—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 thermoset
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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
- 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
- B29C66/816—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 mounting of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/8161—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 mounting of the pressing elements, e.g. of the welding jaws or clamps said pressing elements being supported or backed-up by springs or by resilient material
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
- B29C66/824—Actuating mechanisms
- B29C66/8242—Pneumatic or hydraulic drives
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
- B29C66/824—Actuating mechanisms
- B29C66/8246—Servomechanisms, e.g. servomotors
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
- B29C66/912—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux
- B29C66/9121—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature
- B29C66/91211—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature with special temperature measurement means or methods
- B29C66/91212—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature with special temperature measurement means or methods involving measurement means being part of the welding jaws, e.g. integrated in the welding jaws
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
- B29C66/912—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux
- B29C66/9121—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature
- B29C66/91211—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature with special temperature measurement means or methods
- B29C66/91216—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature with special temperature measurement means or methods enabling contactless temperature measurements, e.g. using a pyrometer
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
- B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
- B29C66/9161—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux
- B29C66/91641—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux the heat or the thermal flux being non-constant over time
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Robotics (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Die Erfindung betrifft ein Verfahren zum Herstellen einer stoffschlüssigen Verbindung zwischen Bauteilen (52, 54) mit den Schritten: – Erwärmen eines Fügebereichs (56) mittels eines Induktors (20), wobei im Fügebereich (56) zumindest ein elektrisch leitfähiger Werkstoff vorhanden ist, – Aufbringen eines Fügedrucks (F) auf den Fügebereich (56) mittels einer Anpressvorrichtung (30) mit zumindest einem Anpresselement (300), wobei das Anpresselement (300) aktiv gekühlt wird zur Abkühlung der Bauteile (52, 54) sowie eine Vorrichtung.The invention relates to a method for producing a cohesive connection between components (52, 54) comprising the steps of: heating a joining region (56) by means of an inductor (20), at least one electrically conductive material being present in the joining region (56), Applying a joining pressure (F) to the joining region (56) by means of a pressing device (30) with at least one pressing element (300), wherein the pressing element (300) is actively cooled to cool the components (52, 54) and a device.
Description
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Herstellen einer stoffschlüssigen Verbindung, insbesondere zum Fügen von zwei Bauteilen, wobei zumindest ein Bauteil aus einem Faserverbundkunststoff besteht.The invention relates to a method and a device for producing a cohesive connection, in particular for joining two components, wherein at least one component consists of a fiber composite plastic.
Die gegenwärtigen Verbindungstechniken stoßen mit der Einführung moderner Leichtbauwerkstoffe an ihre Grenzen. Insbesondere bei Anforderungen an eine hohe Oberflächenqualität und Festigkeit oder beim Verbinden von neuartigen Faserverbundwerkstoffen sind die konventionellen Schweißverfahren nur eingeschränkt geeignet.Current joining techniques are reaching their limits with the introduction of modern lightweight construction materials. Particularly when it comes to requirements for a high surface quality and strength or when joining novel fiber composites, the conventional welding methods are only limited suitable.
Induktionsschweißen ist als Fügeverfahren für Faserverbundmaterialien mit thermoplastischem Matrixmaterial bekannt. Hierzu muss in der Fügezone ein elektrisch leitfähiger Werkstoff beinhaltet sein. Dieser kann als Schweißzusatzmaterial der Fügezone zugegeben werden oder kann in einem oder beiden der zu verbindenden Bauteile beinhaltet sein, z. B. in Form von elektrisch leitfähigen Fasern.Induction welding is known as a joining process for fiber composite materials with thermoplastic matrix material. For this purpose, an electrically conductive material must be included in the joining zone. This may be added as welding filler material of the joining zone or may be included in one or both of the components to be joined, for. B. in the form of electrically conductive fibers.
Beim Induktionsschweißen wird ein Induktor als Teil eines Schwingkreises durch einen Generator mit einem hochfrequenten Wechselstrom angeregt. Der Induktor erzeugt ein Magnetfeld, wodurch in elektrisch leitfähigen Werkstoffen, die im Wirkbereich des Magnetfelds angeordnet sind, Wirbelströme induziert werden. Aufgrund von Widerstandseffekten und dielektrischer Hysterese erwärmt sich der elektrisch leitende Werkstoff und führt durch Wärmeleitung zu einem Aufschmelzen der zu verbindenden Bauteile. Die Erwärmung durch den Induktor erfolgt schnell und kann berührungslos erfolgen. Zur Herstellung der Fügeverbindung wird auf die aufgeschmolzenen Bauteile mittels einer Anpressvorrichtung ein Fügedruck aufgebracht. Zur Konsolidierung werden die Bauteile abgekühlt.In induction welding, an inductor is excited as part of a resonant circuit by a generator with a high frequency alternating current. The inductor generates a magnetic field, whereby eddy currents are induced in electrically conductive materials, which are arranged in the effective range of the magnetic field. Due to resistance effects and dielectric hysteresis, the electrically conductive material heats up and, due to heat conduction, leads to a melting of the components to be connected. The heating by the inductor is fast and can be done without contact. To produce the joint connection, a joining pressure is applied to the molten components by means of a pressure device. For consolidation, the components are cooled.
Aus der Druckschrift
Aufgabe der vorliegenden Erfindung ist es, ein Verfahren und eine Vorrichtung anzugeben, mit dem eine stoffschlüssige Verbindung mit verbesserten Eigenschaften erzielt werden kann, insbesondere eine Fügeverbindung mit zumindest einem Bauteil aus einem Faserverbundkunststoff.The object of the present invention is to provide a method and a device with which a cohesive connection with improved properties can be achieved, in particular a joint connection with at least one component made of a fiber composite plastic.
Gelöst wird diese Aufgabe durch ein Verfahren nach Patentanspruch 1 und eine Vorrichtung nach Patentanspruch 7.This object is achieved by a method according to claim 1 and a device according to claim 7.
Bei einem Verfahren zum Herstellen einer stoffschlüssigen Verbindung zwischen zwei Bauteilen wird ein Fügebereich mittels eines Induktors erwärmt, wobei im Fügebereich zumindest ein elektrisch leitfähiger Werkstoff vorhanden ist. Auf den erwärmten Fügebereich wird ein Fügedruck aufgebracht mittels einer Anpressvorrichtung mit zumindest einem Anpresselement, wobei das Anpresselement aktiv gekühlt wird zur Abkühlung der Bauteile.In a method for producing a cohesive connection between two components, a joining region is heated by means of an inductor, wherein at least one electrically conductive material is present in the joining region. On the heated joining region, a joining pressure is applied by means of a pressing device with at least one pressing element, wherein the pressing element is actively cooled to cool the components.
Die Bauteile werden durch den Kontakt mit dem Anpresselement gekühlt, der Wärmeübergang erfolgt hauptsächlich durch Wärmeleitung. Hierdurch ist eine besonders schnelle Abkühlung, insbesondere der Bauteiloberfläche, gegeben, wodurch die Gefahr eine Beschädigung der Bauteiloberfläche verringert werden kann. Darüber hinaus erhöht das Aufbringen von Druck und Temperaturgradient an derselben Stelle die Qualität und Reproduzierbarkeit der Konsolidierungsbedingungen und führt zu Fügeverbindungen mit verbesserten Eigenschaften. Durch die aktive Kühlung des Anpresselements ist eine geführte Abkühlung der Bauteile möglich.The components are cooled by the contact with the pressure element, the heat transfer takes place mainly by heat conduction. As a result, a particularly rapid cooling, in particular the component surface, given, whereby the risk of damage to the component surface can be reduced. In addition, the application of pressure and temperature gradient at the same location increases the quality and reproducibility of the consolidation conditions and leads to joint joints with improved properties. Due to the active cooling of the pressing element a guided cooling of the components is possible.
Die stoffschlüssige Verbindung zwischen den Bauteilen kann eine Schweißverbindung, eine Klebeverbindung oder eine Lötverbindung sein. Für eine Klebeverbindung wird vor Beginn der Erwärmung ein thermisch aushärtender Klebstoff zwischen den Bauteilen aufgebracht.The cohesive connection between the components may be a welded joint, an adhesive bond or a solder joint. For an adhesive bond, a thermosetting adhesive is applied between the components prior to the start of the heating.
Die Schweißverbindung kann je nach Material der Bauteile mit oder ohne Zusatzwerkstoff ausgeführt werden. Die Bauteile können insbesondere im Überlappstoß oder T-Stoß verbunden werden.Depending on the material of the components, the welded connection can be made with or without additional material. The components can be connected in particular in the lap joint or T-joint.
Die Fügezone muss zumindest einen elektrisch leitfähigen Werkstoff beinhalten, d. h. mindestens ein Bauteil, der Klebstoff oder der Schweißzusatzwerkstoff muss einen elektrisch leitenden Werkstoff beinhalten oder aus einem elektrisch leitenden Werkstoff bestehen.The joining zone must contain at least one electrically conductive material, i. H. at least one component, the adhesive or the welding filler material must include an electrically conductive material or consist of an electrically conductive material.
Zumindest ein Bauteil oder alle Bauteile können z. B. aus Faserverbundkunststoffen bestehen, bei denen die Fasern elektrisch leitfähig sind, z. B. Kohlenstofffasern. Die Fasern können als Kurz-, Lang- und Endlosfasern in Form von Geweben, Rovings, Gestricken, Geflechten, Litzen, Vliesen, Matten u. ä. in die Faserverbundkunststoffe eingearbeitet sein, sofern sie genügend Knotenpunkte für eine ausreichende Erwärmung aufgrund von Widerstandseffekten und dielektrischer Hysterese aufweisen.At least one component or all components can, for. B. consist of fiber reinforced plastics, in which the fibers are electrically conductive, for. B. carbon fibers. The fibers may be in the form of short, long and continuous fibers in the form of woven fabrics, rovings, knitted fabrics, braids, strands, nonwovens, mats and the like. Ä. Be incorporated into the fiber composites, provided they have enough nodes for sufficient heating due to resistance effects and dielectric hysteresis.
Es können Faserverbundkunstoffe mit einer thermoplastischen Matrix verwendet werden. Geeignete Thermoplasten sind z. B. PPS, PPA, PA6, PA6.6, PEEK, SAN, PLA, PES, PEI, (PP). Alternativ kann auch ein Bauteil mit einer thermoplastischen Matrix mit einem Bauteil ohne thermoplastische Matrix, z. B. mit einer Matrix aus Duroplast verbunden werden ggf. unter Verwendung eines geeigneten Klebstoffs. Ebenso sind Hybrid-Verbindungen möglich, zwischen Metall und einem Faserverbundkunststoff (mit oder ohne thermoplastische Matrix) oder Verbindungen zwischen Bauteilen aus Metall. Fiber composite plastics with a thermoplastic matrix can be used. Suitable thermoplastics are z. PPS, PPA, PA6, PA6.6, PEEK, SAN, PLA, PES, PEI, (PP). Alternatively, a component having a thermoplastic matrix with a component without a thermoplastic matrix, for. B. be connected to a matrix of thermosetting, if necessary, using a suitable adhesive. Likewise, hybrid compounds are possible, between metal and a fiber composite plastic (with or without thermoplastic matrix) or connections between components made of metal.
Die Bauteile können insbesondere Karosseriebauteile oder Interieurbauteile aus dem Fahrzeugbau sein.The components may in particular be body components or interior components from vehicle construction.
Zur Realisierung einer technisch einfach umzusetzenden aktiven Kühlung des Anpresselements kann ein Kühlmedium durch das Anpresselement geleitet werden. Das Kühlmedium kann z. B. eine Flüssigkeit oder ein Gas sein und ist in einer Ausgestaltung Wasser.To realize a technically easy to implement active cooling of the pressing a cooling medium can be passed through the contact pressure. The cooling medium can, for. B. may be a liquid or a gas and is water in one embodiment.
In einer Ausgestaltung wird die Abkühlrate der Bauteile mittels der Temperatur des Anpresselements geregelt. Die Bauteiltemperatur kann z. B. mittels Pyrometer, optischer Temperaturmessung oder Thermoelementen gemessen werden.In one embodiment, the cooling rate of the components is controlled by means of the temperature of the contact pressure element. The component temperature can, for. B. by pyrometer, optical temperature measurement or thermocouples can be measured.
Abhängig von der Abweichung zwischen gemessener Temperatur und einer Solltemperatur wird die Temperatur des Anpresselements angepasst zur Regelung der Abkühlrate der Bauteile. Der die Eigenschaften des Polymers mitbestimmende Temperaturverlauf bei der Abkühlung lässt sich somit besser kontrollieren. Insbesondere ermöglicht dieses Verfahren eine Konsolidierung der Bauteile mit der ursprünglichen Gefügebeschaffenheit, z. B. die gezielte Rekristallisation (teil-)kristalliner Polymere.Depending on the deviation between the measured temperature and a setpoint temperature, the temperature of the contact pressure element is adapted to control the cooling rate of the components. The temperature characteristics of the cooling process which co-determine the properties of the polymer can thus be better controlled. In particular, this method allows a consolidation of the components with the original structure texture, z. As the targeted recrystallization of (partially) crystalline polymers.
Versuche haben gezeigt, dass bei einer mit dem erfindungsgemäßen Verfahren hergestellten Schweißbahn zwischen zwei Bauteilen aus Polyamid 6.6/CF durch die Regelung der Abkühlrate Verbindungen mit besonders hoher Scherzugfestigkeit von im Mittel 22 MPa und einer Bruchfestigkeit oberhalb der Matrixfestigkeit an der Fügestelle realisiert werden konnten. Hierzu wurden zwei Proben aus PA6.6/CF mit einer Probendicke von 2 mm und einer Probenbreite von 48 mm im Überlappstoß verschweißt. Die Vergleichswerte der Matrixfestigkeit ergeben sich aus den Datenblättern des Matrixherstellers.Experiments have shown that in a welding path produced by the method according to the invention between two components of polyamide 6.6 / CF by controlling the cooling rate compounds with a particularly high Scherzugfestigkeit of 22 MPa average and a breaking strength above the matrix strength at the joint could be realized. For this purpose, two samples of PA6.6 / CF were welded with a sample thickness of 2 mm and a sample width of 48 mm in the lap joint. The comparative values of the matrix strength are given in the data sheets of the matrix manufacturer.
Vorzugsweise wird der Volumenstrom des Kühlmediums, welcher durch das Anpresselement strömt, als Stellgröße für die Regelung der Abkühlrate der Bauteile verwendet. In einer alternativen Ausgestaltung kann die Temperatur des Kühlmediums als Stellgröße verwendet werden oder es können sowohl Temperatur als auch Volumenstrom des Kühlmediums als Stellgrößen verwendet werden.Preferably, the volume flow of the cooling medium, which flows through the contact pressure, used as a control variable for the regulation of the cooling rate of the components. In an alternative embodiment, the temperature of the cooling medium can be used as a manipulated variable or both temperature and volume flow of the cooling medium can be used as manipulated variables.
Für die Bearbeitung von Faserverbundkunststoffen ist das Verfahren insbesondere geeignet, wenn der Induktor mit einer Frequenz von 500 kHz oder größer angeregt wird. In diesem Frequenzspektrum wird die maximale Temperatur nicht an der Oberfläche der Faserverbundkunststoffe, sondern weiter im Bauteilinneren in der Nähe des Fügebereichs erzeugt. Die Oberfläche wird somit weniger stark erwärmt, wodurch die Oberflächenbeschaffenheit der miteinander verbundenen Bauteile weiter verbessert werden kann. Durch die Wahl geeigneter Werte für die Parameter Induktorabstand und Frequenz kann die Ebene mit der maximalen Energieeinbringung eingestellt werden.For the processing of fiber reinforced plastics, the method is particularly suitable when the inductor is excited at a frequency of 500 kHz or greater. In this frequency spectrum, the maximum temperature is not generated at the surface of the fiber composite plastics, but further inside the component in the vicinity of the joint area. The surface is thus heated less strongly, whereby the surface quality of the interconnected components can be further improved. By selecting suitable values for the parameters inductor distance and frequency, the plane with the maximum energy input can be set.
Vorzugsweise wird das Verfahren als kontinuierliches Verfahren betrieben zur Erzeugung von Schweiß- bzw. Klebebahnen. Alternativ kann das Verfahren auch diskontinuierlich eingesetzt werden zur Ausbildung einzelner Schweiß- oder Klebepunkte.Preferably, the process is operated as a continuous process for the production of welding or adhesive webs. Alternatively, the method can also be used discontinuously to form individual welding or adhesive points.
Eine Vorrichtung zum Herstellen einer stoffschlüssigen Verbindung zwischen Bauteilen weist einen Induktor und eine Anpressvorrichtung mit zumindest einem Anpresselement auf, wobei das Anpresselement weiterhin als aktives Kühlelement ausgebildet ist.An apparatus for producing a cohesive connection between components has an inductor and a pressing device with at least one contact pressure element, wherein the contact pressure element is furthermore designed as an active cooling element.
Druck und Kühlung können somit gemeinsam auf die Bauteile aufgebracht werden, am gleichen Ort und zur gleichen Zeit. Das Zusammenspiel von Druck und Temperatur, das zum Erreichen der Konsolidierungsparameter notwendig ist, kann somit verbessert eingestellt werden. Hierdurch wird die Reproduzierbarkeit der Konsolidierungsparameter und damit die Prozesssicherheit gesteigert.Pressure and cooling can thus be applied together to the components, at the same place and at the same time. The interaction of pressure and temperature, which is necessary to achieve the consolidation parameters, can thus be set better. This increases the reproducibility of the consolidation parameters and thus the process reliability.
Der Induktor ist vorzugsweise ein Flächeninduktor und kann z. B. eine annähernd rechteckige oder runde Grundfläche aufweisen.The inductor is preferably a Flächeninduktor and z. B. have an approximately rectangular or round base.
Die Anpressvorrichtung kann die Bauteile von zwei Seiten, der dem Induktor zugewandten Seite und der gegenüberliegenden Seite, mit Druck beaufschlagen. Hierzu können auf jeder Seite ein oder mehrere Anpresselemente nach Art einer Zange angeordnet sein, zwischen denen die Bauteile eingeklemmt werden. Alternativ weist die Anpressvorrichtung nur auf einer Seite der Bauteile ein oder mehrere Anpresselemente auf, die in Kontakt mit der Bauteil- bzw. Werkstückoberfläche treten. Der erforderliche Fügedruck wird dann durch Abstützung gegenüber der Werkstückaufnahme aufgebaut. Der Fügedruck kann z. B. mittels einer vorspannbaren Feder, servoelektrischer Motoren und/oder servopneumatischer Antriebe auf die bzw. das Anpresselement(e) aufgebracht werden. Der Fügedruck kann während des Verfahrens konstant gehalten oder verändert werden, z. B. mittels einer Regelung.The pressing device can pressurize the components from two sides, the side facing the inductor and the opposite side. For this purpose, one or more pressing elements can be arranged in the manner of a pair of pliers on each side, between which the components are clamped. Alternatively, the pressing device on only one side of the components on one or more pressing elements, which come into contact with the component or workpiece surface. The required joining pressure is then built up by support against the workpiece holder. The joining pressure can z. B. by means of a prestressable spring, servo-electric motors and / or servopneumatic drives on the or Pressing element (s) are applied. The joining pressure can be kept constant or changed during the process, for. B. by means of a scheme.
Als aktives Kühlelement ist das Anpresselement in der Lage, Wärmeenergie aus den Bauteilen aufzunehmen und in einem Maße abzutransportieren, das über den Wärmetransport freier Konvektion hinausgeht. Hierzu wird das Anpresselement der Anpressvorrichtung aktiv gekühlt. Somit kann die Abkühlrate der Bauteile über die Temperatur des Anpresselements geführt werden.As an active cooling element, the contact pressure element is able to absorb heat energy from the components and to carry it away to a degree that goes beyond the heat transport of free convection. For this purpose, the pressing element of the pressing device is actively cooled. Thus, the cooling rate of the components can be performed on the temperature of the pressing member.
Die aktive Kühlung des Anpresselements wird vorzugsweise dadurch realisiert, dass in dem Anpresselement Kühlkanäle ausgebildet sind zur Durchleitung eines Kühlmediums.The active cooling of the contact pressure element is preferably realized in that cooling channels are formed in the pressing element for the passage of a cooling medium.
Eine besonders effiziente Kühlung ergibt sich, wenn die Kühlkanäle als zwei miteinander durch eine Vielzahl von Querkanälen verbundene Ringkanäle ausgebildet sind.A particularly efficient cooling results when the cooling channels are formed as two interconnected by a plurality of transverse channels ring channels.
Das Anpresselement kann z. B. als Platte oder Stempel ausgeführt sein. Alternativ ist das Anpresselement vorzugsweise als Anpressrolle ausgeführt, wodurch ein kontinuierlicher Prozess ermöglicht wird.The pressing element may, for. B. be designed as a plate or stamp. Alternatively, the pressing element is preferably designed as a pressure roller, whereby a continuous process is made possible.
Zur Erzielung eines guten Wärmeübergangs zwischen Bauteil und Anpresselement bzw. zwischen Anpresselement und Kühlmedium bei gleichzeitiger Vermeidung einer ungewollten Erwärmung des Anpresselements durch das induzierte Magnetfeld ist das Anpresselement in einer Ausgestaltung aus nicht magnetischem Metall bzw. einer nicht magnetischen Metalllegierung gefertigt, insbesondere aus Edelstahl mit einem austenitischen Gefügeanteil. Dies wird durch Legierungen mit einem nennenswerten Anteil der Legierungselemente Ni, C, Cu, N, Co, Mo ermöglicht, z. B. mit einem Masseanteil an Legierungselementen von mehr als 1%. Beispielsweise kann das Anpresselement aus X1.4404 gefertigt sein.To achieve a good heat transfer between the component and contact pressure element or between pressure element and cooling medium while avoiding unwanted heating of the contact element by the induced magnetic field, the contact element is made in a configuration of non-magnetic metal or a non-magnetic metal alloy, in particular stainless steel with a austenitic structure fraction. This is made possible by alloys with a significant proportion of the alloying elements Ni, C, Cu, N, Co, Mo, z. B. with a mass fraction of alloying elements of more than 1%. For example, the pressing element can be made of X1.4404.
Die Vorrichtung kann weiterhin eine Kontrollvorrichtung aufweisen, die eingerichtet ist zur Regelung der Abkühlrate der Bauteile mittels aktiver Kühlung des Anpresselements. Die Bauteiltemperatur kann z. B. über faseroptische Temperaturmessung, Pyrometer oder Thermoelemente erfasst werden. Die Kontrollvorrichtung wertet diese Temperaturdaten aus und bestimmt z. B. anhand von Vorgaben der gewünschten Abkühlrate Stellgrößen für die Regelung. Anhand dieser Stellgrößen erfolgt die Temperaturänderung des Anpresselements, z. B. durch die Veränderung der Durchflussmenge oder die Anpassung der Temperatur des Kühlmediums, das durch das Anpresselement geleitet wird. Die Kontrollvorrichtung kann in die Vorrichtung integriert sein oder mit dieser verbunden sein (drahtlos oder drahtgebunden).The apparatus may further comprise a control device which is adapted to control the cooling rate of the components by means of active cooling of the contact pressure element. The component temperature can, for. B. via fiber optic temperature measurement, pyrometers or thermocouples are detected. The control device evaluates this temperature data and determines z. B. based on specifications of the desired cooling rate control variables for the scheme. Based on these manipulated variables, the temperature change of the pressing element, z. B. by changing the flow rate or adjusting the temperature of the cooling medium, which is passed through the contact pressure element. The control device may be integrated with or connected to the device (wireless or wired).
In einer weiteren Ausgestaltung kann die Kontrollvorrichtung weiterhin eingerichtet sein zur Regelung des Erwärmungsvorgangs. Die Regelung der induktiven Erwärmung kann z. B. anhand der Stellgrößen Stromstärke, Vorschubgeschwindigkeit, Induktorabstand und ggf. Frequenz des Induktors erfolgen. Die Regelung basiert vorzugsweise auf einer, z. B. mittels Pyrometer, gemessenen Oberflächentemperatur des Bauteils und berücksichtigt den werkstoffcharakteristischen Zusammenhang zwischen Oberflächentemperatur und Temperatur in der Fügezone.In a further embodiment, the control device can furthermore be designed to control the heating process. The regulation of inductive heating can z. B. based on the manipulated variables current, feed rate, inductor distance and possibly frequency of the inductor. The control is preferably based on a, z. Example by means of pyrometer, measured surface temperature of the component and takes into account the material-characteristic relationship between surface temperature and temperature in the joining zone.
In einer bevorzugten Ausgestaltung weist die Anpressvorrichtung nur ein einziges Anpresselement in Form einer Anpressrolle auf, die benachbart zum Induktor angeordnet ist. Hierdurch können bei ausreichender Abstützung der Bauteile auch Bauteile miteinander verbunden werden, die nur einseitig zugänglich sind. Beispielsweise beträgt ein Abstand zwischen dem Induktor und der Anpressrolle 10 mm oder weniger. Somit können auch enge Radien im Fügebahnverlauf realisiert werden.In a preferred embodiment, the pressing device has only a single pressing element in the form of a pressure roller, which is arranged adjacent to the inductor. As a result, with sufficient support of the components and components can be connected to each other, which are accessible only on one side. For example, a distance between the inductor and the pressure roller is 10 mm or less. Thus, even narrow radii in the joining path can be realized.
Der Induktor und die Anpressvorrichtung können an einem gemeinsamen Grundkörper befestigt sein und gemeinsam relativ zum Bauteil bewegt werden. Induktor und Anpressvorrichtung können z. B. auf einem gemeinsamen Bearbeitungskopf integriert sein.The inductor and the pressing device can be attached to a common base body and moved together relative to the component. Inductor and pressing device can, for. B. be integrated on a common processing head.
Zur Bewegung der Vorrichtung entlang der Bauteile kann die Vorrichtung an einer zumindest einachsigen Linearführung angeordnet sein. Eine größere Flexibilität hinsichtlich der möglichen Bewegungen ergibt sich durch die Verwendung mehrachsiger Linearsysteme, z. B. mehrerer, zueinander rechtwinklig angeordneter Linearführungen. Um eine Rotation der Vorrichtung zu ermöglichen können die Linearsysteme ggf. zusätzlich mit einer Drehachse kombiniert sein. Die Linearführungen können als motorisierte Linearsysteme ausgeführt sein.For moving the device along the components, the device can be arranged on an at least uniaxial linear guide. Greater flexibility in terms of possible movements results from the use of multi-axis linear systems, eg. B. a plurality of mutually perpendicular arranged linear guides. In order to enable a rotation of the device, the linear systems may possibly be additionally combined with a rotation axis. The linear guides can be designed as motorized linear systems.
In einer alternativen Ausgestaltung wird die Vorrichtung an einem Gelenkarm-Roboter, insbesondere einem 5- oder 6-Achs-Roboter befestigt. Dies ermöglicht weitere Freiheitsgrade und damit das Abfahren auch dreidimensionaler Schweißnaht- bzw. Fügeverläufe.In an alternative embodiment, the device is attached to an articulated arm robot, in particular a 5- or 6-axis robot. This allows more degrees of freedom and thus the departure of three-dimensional weld seam or joining gradients.
Alternativ kann die Vorrichtung ortsfest montiert sein und eine Bewegung der Bauteile kann über ein- oder mehrachsige Handhabungssysteme wie z. B. Linearsysteme oder Gelenkarmroboter erfolgen. Auf flexible und lange Anschlüsse wie z. B. Schlauchkabel für den Anschluss des Induktors an den Schwingkreis kann dann verzichtet werden. Hierdurch können höhere Frequenzen realisiert werden und es kann die Prozesssicherheit verbessert werden.Alternatively, the device may be mounted stationary and movement of the components may be via single or multi-axis handling systems such. B. linear systems or articulated arm robots done. On flexible and long connections such. B. hose for the connection of the inductor to the resonant circuit can then be dispensed with. As a result, higher frequencies can be realized and process reliability can be improved.
Die zur Regelung der Abkühlrate eingesetzte Kontrollvorrichtung kann ebenso eingerichtet sein zur Steuerung bzw. Regelung des Abstands zwischen Induktor und Bauteiloberfläche sowie zur Steuerung bzw. Regelung des Anpressdrucks. Die Kontrollvorrichtung kann ebenso auch die Relativbewegung zwischen Werkstück und Vorrichtung steuern.The control device used to control the cooling rate can also be set up to control or regulate the distance between the inductor and the component surface and to control or regulate the contact pressure. The control device can also control the relative movement between the workpiece and the device as well.
Die Vorrichtung kann zur Durchführung des voranstehend beschriebenen Verfahrens verwendet werden, insbesondere zum Ausbilden einer Schweißverbindung zwischen zwei Bauteilen aus einem Faserverbundkunststoff mit Carbonfasern. Insofern gelten die für das Verfahren beschriebenen technischen Merkmale und Vorteile auch für die entsprechende Umsetzung in der Vorrichtung.The apparatus may be used to carry out the method described above, in particular for forming a welded connection between two components made of a fiber composite plastic with carbon fibers. In this respect, the technical features and advantages described for the method also apply to the corresponding implementation in the device.
Weitere vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen.Further advantageous embodiments of the invention will become apparent from the dependent claims.
Die oben beschriebenen Eigenschaften, Merkmale und Vorteile dieser Erfindung sowie die Art und Weise, wie diese erreicht werden, werden klarer und deutlicher verständlich im Zusammenhang mit der folgenden Beschreibung der Ausführungsbeispiele. Sofern in dieser Anmeldung der Begriff ”kann” verwendet wird, handelt es sich sowohl um die technische Möglichkeit als auch um die tatsächliche technische Umsetzung.The above-described characteristics, features, and advantages of this invention, as well as the manner in which they are achieved, will become clearer and more clearly understood in connection with the following description of the embodiments. If the term "can" is used in this application, it is both the technical possibility and the actual technical implementation.
Im Folgenden werden Ausführungsbeispiele an Hand der beiliegenden Zeichnungen erläutert. Darin zeigen:Embodiments will be explained below with reference to the accompanying drawings. Show:
Die
Die Vorrichtung
Der Induktor
Der Induktor
Die Anpressvorrichtung
Die Anpressrolle
Zur Durchführung des Verfahrens wird die Vorrichtung
Mittels des Induktors
Zur Ausbildung der Fügeverbindung und Konsolidierung der Bauteile
Hierzu wird, wie in
Ebenfalls durch die Anpressrolle
Zur Verringerung von Randzoneneffekten kann der Induktor auch mit einer runden Fläche ausgeführt werden, z. B. mit einem Außendurchmesser von 25 mm. Andere Materialien und Profilquerschnitte und andere Abmessungen sind je nach Einsatzzweck möglich bzw. angezeigt.To reduce edge zone effects, the inductor can also be designed with a round surface, z. B. with an outer diameter of 25 mm. Other materials and profile cross-sections and other dimensions are possible or indicated depending on the purpose.
Durch diesen Kanalverbund kann ein Kühlmittel, z. B. ein Gas oder eine Flüssigkeit, quer durch die Rolle
Die Anpressrolle
Die Temperatur der Anpressrolle
Während des Fügeverfahrens wird die Abkühlrate der Bauteile
Die Kontrollvorrichtung
Die Relativbewegung zwischen Werkstück
Zur Vermeidung einer Wiederholung sind gleiche Bauteile mit gleichen Bezugszeichen versehen.To avoid repetition, the same components are provided with the same reference numerals.
Das Werkstück
Der Induktor
Zur Bewegung der Vorrichtung
In einer nicht dargestellten alternativen Ausführungsform wird die Vorrichtung an einem Gelenkarm-Roboter, insbesondere einem 5- oder 6-Achs-Roboter befestigt und von diesem bewegt. Dies ermöglicht weitere Freiheitsgrade und damit das Abfahren auch dreidimensionaler Schweißnaht- bzw. Fügeverläufe.In an alternative embodiment, not shown, the device is attached to an articulated arm robot, in particular a 5- or 6-axis robot and moved by this. This allows more degrees of freedom and thus the departure of three-dimensional weld seam or joining gradients.
Die Linearsysteme
Die Ausführungsbeispiele sind nicht maßstabsgetreu und nicht beschränkend. Abwandlungen im Rahmen des fachmännischen Handelns sind möglich.The embodiments are not to scale and are not restrictive. Modifications in the context of expert action are possible.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 1010
- Vorrichtungcontraption
- 2020
- Induktorinductor
- 2222
- Positioniervorrichtungpositioning
- 2424
- KupferhohlprofilCopper hollow profile
- 2626
- Anschlüsseconnections
- 3030
- Anpressvorrichtungpressing device
- 3232
- Aufnahmeadmission
- 4040
- Grundkörperbody
- 4242
- Gestellframe
- 5050
- Werkstückworkpiece
- 5151
- Bauteilaufnahmecomponent pick
- 52, 5452, 54
- Bauteilcomponent
- 56 56
- Fügebereichjoining area
- 5858
- WerkstückoberflächeWorkpiece surface
- 5959
- Spannelementclamping element
- 6060
- Erwärmungszoneheating zone
- 6262
- Fügerichtungjoining direction
- 6464
- Kühlzonecooling zone
- 7070
- Kontrollvorrichtungcontrol device
- 80, 9080, 90
- Linearsystemlinear system
- 82, 84, 92, 9482, 84, 92, 94
- Linearachselinear axis
- 300300
- Anpressrollepressure roller
- 310310
- Körperbody
- 320A, 320B320A, 320B
- Achsenaxes
- 330330
- Kanalchannel
- 340A, B340A, B
- Ringkanalannular channel
- 350350
- Kühlkanalcooling channel
- 360360
- Zuführkanalfeed
- 370370
- Abführkanaldischarge channel
- A1, A2A1, A2
- Abstanddistance
- BB
- Breite InduktorWide inductor
- BRBR
- Breite AnpressrolleWide pressure roller
- FF
- Fügekraftjoining force
- LL
- Längelength
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 the documents listed by the applicant has been generated automatically and is included solely 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 PatentliteraturCited patent literature
- DE 102012100620 A1 [0005] DE 102012100620 A1 [0005]
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Cited By (2)
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US20220274346A1 (en) * | 2021-02-26 | 2022-09-01 | Conductix-Wampfler Gmbh | Current Collector Head Manufacturing Method and Current Collector Head |
DE102016008671B4 (en) | 2016-07-20 | 2023-12-14 | Technische Universität Chemnitz | Method for inductive contact joining |
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US4992133A (en) * | 1988-09-30 | 1991-02-12 | Pda Engineering | Apparatus for processing composite materials |
US20030062118A1 (en) * | 2001-09-25 | 2003-04-03 | Gerhard Jack K. | Apparatus and method for induction lamination of electrically conductive fiber reinforced composite materials |
DE102005018478A1 (en) * | 2005-04-21 | 2006-10-26 | Institut Für Verbundwerkstoffe Gmbh | Continuous induction welding of metal and-or plastic parts, involves using a pressure applicator and an electrically-conductive material in a welding zone which is heated by an inductor while the pressure is applied |
DE102012100620A1 (en) | 2012-01-25 | 2013-07-25 | Institut Für Verbundwerkstoffe Gmbh | Method for induction welding |
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US5635094A (en) | 1995-01-03 | 1997-06-03 | The Boeing Company | Conformal skate for induction welding |
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US4992133A (en) * | 1988-09-30 | 1991-02-12 | Pda Engineering | Apparatus for processing composite materials |
US20030062118A1 (en) * | 2001-09-25 | 2003-04-03 | Gerhard Jack K. | Apparatus and method for induction lamination of electrically conductive fiber reinforced composite materials |
DE102005018478A1 (en) * | 2005-04-21 | 2006-10-26 | Institut Für Verbundwerkstoffe Gmbh | Continuous induction welding of metal and-or plastic parts, involves using a pressure applicator and an electrically-conductive material in a welding zone which is heated by an inductor while the pressure is applied |
DE102012100620A1 (en) | 2012-01-25 | 2013-07-25 | Institut Für Verbundwerkstoffe Gmbh | Method for induction welding |
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DE102016008671B4 (en) | 2016-07-20 | 2023-12-14 | Technische Universität Chemnitz | Method for inductive contact joining |
US20220274346A1 (en) * | 2021-02-26 | 2022-09-01 | Conductix-Wampfler Gmbh | Current Collector Head Manufacturing Method and Current Collector Head |
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