EP3102393A1 - Dispositif de pose de bande et procédé d'élaboration d'un stratifié - Google Patents

Dispositif de pose de bande et procédé d'élaboration d'un stratifié

Info

Publication number
EP3102393A1
EP3102393A1 EP15702781.4A EP15702781A EP3102393A1 EP 3102393 A1 EP3102393 A1 EP 3102393A1 EP 15702781 A EP15702781 A EP 15702781A EP 3102393 A1 EP3102393 A1 EP 3102393A1
Authority
EP
European Patent Office
Prior art keywords
tape
tapes
tape structure
binder
juxtaposed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP15702781.4A
Other languages
German (de)
English (en)
Inventor
Matthias Graf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dieffenbacher GmbH Maschinen und Anlagenbau
Original Assignee
Dieffenbacher GmbH Maschinen und Anlagenbau
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dieffenbacher GmbH Maschinen und Anlagenbau filed Critical Dieffenbacher GmbH Maschinen und Anlagenbau
Publication of EP3102393A1 publication Critical patent/EP3102393A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/0261—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using ultrasonic or sonic vibrations
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/38—Automated lay-up, e.g. using robots, laying filaments according to predetermined patterns
    • B29C70/386—Automated tape laying [ATL]
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/38—Automated lay-up, e.g. using robots, laying filaments according to predetermined patterns
    • B29C70/386—Automated tape laying [ATL]
    • B29C70/388—Tape placement heads, e.g. component parts, details or accessories
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
    • B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
    • B29C70/20—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in a single direction, e.g. roofing or other parallel fibres

Definitions

  • the present invention relates to a tape laying apparatus and to a method of constructing and consolidating a laminate for, for example, automotive components by means of a tape laying apparatus, which comprises at least: a) a feeding device for supplying provided with binder and / or matrix materials to be deposited tape to a depositing device; b) a depositing device for depositing supplied tape; wherein juxtaposed tape defines a stack of a tape structure; and c) a controller for controlling the receipt of a consolidated laminate by: aa) a guide device for bringing tape to an excitation device or vice versa; bb) an excitation device for plasticizing the binder and / or matrix materials in joining zones of tape brought to the exciting device; and cc) a consolidation device for bringing together the plasticized binder and / or matrix materials in adjoining joining zones of superimposed tapes.
  • Fiber composite applications have continued to increase over the past decades, especially when viewed as a cost-effective alternative to metallic materials, with the benefits of design freedom and application-specific formulation capabilities.
  • the material CFK carbon fiber reinforced plastic
  • CFRP carbon fiber reinforced plastic
  • the former usually include preform manufacturing units, press and optionally injection units and post-processing units - the latter the corresponding automation for preform handling, tool cleaning, component removal and the like.
  • the automatable production of the preform is definitely the key technology in the production process of continuous fiber reinforced fiber composite components for the realization of an efficient mass production with reproducible stable component quality.
  • hybrid components ie compression-molded sheets, which are primarily pressed with carbon fiber semi-finished products in order to additionally reinforce critical load zones, all production units must be able to be integrated in terms of plant and control technology if sufficient productivity is to be achieved.
  • textile fiber semi-finished products such as fiber yarns and / or fabrics impregnated with a binder (hotmelt adhesive) and / or partially or fully impregnated with a matrix (so-called prepregs) such as fiber fabrics, knit fabrics, Pads or mats used.
  • the matrix of fiber-reinforced plastics has the task of embedding the heavy-duty fibers (supporting function) and completely filling their intermediate space (blocking function).
  • binder materials and / or matrix materials can be used materials from the groups of thermoplastics or thermosets and optionally additional elasticizing components, such as elastomers, which in the strength, the maximum elongation, the operating temperature, the processing speed and the Distinguish chemical resistance.
  • Thermosetting molding compounds can be plasticized by the action of temperature, are malleable at this moment and then cure irreversibly under pressure and temperature.
  • the elastomers and thermosets also called thermosets
  • after processing d. H. in the ready-to-use state, of more or less strongly cross-linked macromolecules, which are generally neither fusible nor soluble.
  • blanks are produced in a cutting process, which usually line the formed component over its entire surface.
  • a cutting process which usually line the formed component over its entire surface.
  • continuous fiber-reinforced components can be produced substantially less waste or without wastage via processes that have become known as tape-laying methods.
  • thermoplastic continuous fiber tapes prove to be a very attractive process variant.
  • the laying of the fibrous composite materials, which are usually present as a tape, for constructing a laminate presents a special challenge.
  • tape in the context of the present invention is preferably meant any type of sheeted prepreg material, for example between 30 and 150 mm wide prepreg strip material, which is suitable for being laid down by means of a tape laying device.
  • prepreg material means, in particular, fiber yarns (rovings), fiber scrims and / or fiber webs which are wetted with a binder and / or partially or completely impregnated with a matrix, for example a thermoset matrix or thermoplastic matrix, in particular preimpregnated , are.
  • the “fibers” are in particular carbon fibers, but in the same way also for glass fibers or other, in particular artificially produced, fibers applicable.
  • the tape can be arranged on a carrier material, in particular a carrier film or a carrier paper, which dissolves during the laying of the tape for building the laminate from the carrier material, wherein the carrier material by means of a suitable device of the tape laying device eliminated, for example, wound.
  • a carrier material in particular a carrier film or a carrier paper, which dissolves during the laying of the tape for building the laminate from the carrier material, wherein the carrier material by means of a suitable device of the tape laying device eliminated, for example, wound.
  • tape to be deposited is pressed by means of a laying head, depending on the type of tape laying device used, for example via a shoe or a pinch roller on an already deposited tape structure with comparatively low, only local and very short-term pressure, so that the tape to be deposited successively, so only gradually or successively, with the already deposited tape structure is slightly glued or welded.
  • a suitable tackiness or weldability of the binder and / or matrix systems in the tape to be deposited or the already deposited tape structure is required.
  • the tackiness can be increased by moderate heating.
  • the above-described heating by means of a warm air flow has only low heat transfer properties and leads to low heating rates of the tap to be deposited, so that it is not possible to achieve desired deposition rates.
  • the use of hot air is not suitable for near-surface melting of tapes with a thermoplastic binder and / or matrix system.
  • thermoplastic tapes have been further developed, for example, in WO 2009/130087 A1, in order to be able to deposit thermoplastic tapes as well.
  • an excitation device is mounted on the laying head, which uses the ultrasound, the induction and / or the infrared, and which a tape to be deposited flying in the trigger, for. heated by a coil or roller, shortly before the deposition time locally across its thickness and then locally heated over its thickness tape then presses on a flexible laying roll on the already deposited tape structure flying on and so successively interconnected.
  • this laying process is also limited due to its only locally limited design in its laying speed and therefore not suitable in particular for a mass production application suitable for mass production.
  • EP 1 315 613 B1 discloses a method and equipment for producing advanced composite structures, comprising the steps: Applying and bonding a first group of fibers to a conveyor belt at a first angle, wherein a matrix material is bonded to the first group of fibers; Applying and bonding a second group of fibers to a conveyor belt at a second angle, wherein a matrix material is bonded to the second group of fibers; - wherein the first angle is not equal to the second angle, and - wherein the first group of fibers is applied intermittently, and - Wherein the second group of fibers is applied intermittently to provide cutouts in the composite part can.
  • the present invention seeks to provide an improved tape laying device or an improved method for building and consolidating a laminate for example, automotive components by means of a tape laying device, which or which avoids the disadvantages described above.
  • this object is achieved by a method for constructing a laminate having the features of patent claim 1 and by a tape laying device for carrying out a method for constructing a laminate having the features of patent claim 7.
  • the binder and / or matrix materials are successively plasticized and consolidated in all joining zones adjoining one another in the ultrasound excitation device Q of all juxtaposed and stacked layers and / or tapes of the tape structure, one can be previously laminated corresponding tapestry obtained from juxtaposed and stacked tape can advantageously be supplied to an ultrasonic excitation device as a whole.
  • the successive plasticizing of the binder and / or matrix materials occurs exclusively in the surfaces of the joining zones adjacent to juxtaposed and stacked layers and / or tapes of at least the lowest and uppermost stackings of the ultrasound -Anregungs worn brought-up cross-section Q of the tape structure.
  • binder and / or matrix materials at least in the side and surface facing away from the juxtaposed and stacked layers and / or tapes of at least lowermost and topmost stacking of the cross-section Q of the tape structure brought to the ultrasonic excitation means not via enamel - or flow temperature of the plastic matrix used can advantageously also large-scale tape structures or laminates of, for example 30 to 150 mm wide, tapes without unwanted flow and fiber shifts constructed and consolidated over its cross-section Q.
  • the limitation of undesired flow processes and / or fiber displacements can be increased if, in a preferred sequence of the process, the successive plasticization of the binder and / or matrix materials not only exclusively in the surfaces of adjacent and stacked piles and / or tapes adjacent Joining zones of at least the lowest and uppermost stacking of brought to the ultrasonic excitation device cross-section Q of the tape structure but also in all in between juxtaposed and stacked piles and / or tapes of Tape Modell done.
  • the successive plasticizing of the binder and / or matrix materials in stacking layers arranged between topmost and bottom stacking layers of the cross-section Q of the tape structure brought to the ultrasound exciter, exclusively in the surfaces of the adjoining joining zones and / or across their thickness.
  • the bottom and top layers of a previously deposited tape structure should never be plasticized over the thickness thereof in order not to jeopardize the dimensional stability of the laminate.
  • pre-fix the tape deposited on the uppermost stack of an already deposited tape structure with the uppermost stacking layer carrying this tape is provided.
  • a prefixing has a sufficient intrinsic stability of the deposited tape structure to the advantage, so that the tape structure as a whole also supplied outside the tape laying device arranged ultrasonic excitation and - as described above - can be plasticized and consolidated over its cross-section Q successively.
  • a sequence is preferred in which multiple tapes are simultaneously, i. especially at the same time and multi-lane, be handled.
  • Such a parallelization advantageously multiplies the number of laid tapes per cycle sequence corresponding to X (for the number of multi-track handled tapes).
  • the depositing device comprises a plurality of guide beams, which simultaneously retracts several tapes, ablnaturet and deposits, thereby advantageously simultaneous sequences are possible, which increases the laying speed noticeably.
  • the laying device and / or the laying beams and / or a laying table are designed to be displaceable sideways at least by the width of one or a group X, so that several tapes are drawn in at the same time in subsequent sequences. can be cut off and stored.
  • the consolidation device comprises a plurality of large-area ultrasonic excitation devices, which are preferably arranged continuously in a sealing bar device or a pair of rolling elements.
  • a welding bar device has the advantage that the deposited tape structure can remain on the laying table; the provision of a roller pair device has the advantage that the deposited tape structure with the beginning of their consolidation and the laying table for the construction and consolidation of a new laminate already begins to make free.
  • the sealing bar device is formed from a multiplicity of side-by-side sliding shoes, which in particular with regard to consolidation parameters are each designed separately by means of a separate control device or the control device.
  • Such a shoe which can be found in individual or cumulative features of its embodiment detached from the present invention application, is characterized in particular by a zone with short in movement or sliding direction contact length for coupling ultrasonic energy in the tape structure of tufts and / or tape and by a at least one side in the direction of movement or sliding G subsequent long zone for cooling the tape structure of tufts and / or tapes.
  • the contact force, the sliding speed and / or the ultrasound intensity can be controlled constant or variable by means of a separate control device or in particular as a function of the material properties and / or the temperature and / or thickness of an already deposited tape structure made of layers / or tapes, wherein in particular the surface pressure on the US-coupling zone and the subsequent cooling zone can be controlled differently sized.
  • a sliding shoe is preferred, which is equipped, for example, at its rear end with moving sensors, for example by means of preferably obliquely coupled ultrasound (transmitter and receiver) the consolidation of the tape structure checks for their quality and parameters of the controller for an adaptive control Consolidation, in particular by means of changing the US intensity and / or the speed and / or the contact force provides.
  • the present invention permits the construction and consolidation of a laminate with high lay rates and speed of interest for production applications.
  • the present invention is particularly suitable for industrial construction and consolidation of a laminate for, for example, automotive components, which are converted to the final component by a thermoforming process or in conjunction with a flowable fiber composite material in the extrusion or injection molding process.
  • FIGS. 12 to 21 show the individual method steps for constructing and consolidating a laminate by means of a multi-track tape dispensing device according to the invention
  • FIG. 22 shows a tape structure of a tape laying device according to the invention, made up of juxtaposed and stacked tape
  • FIG. 23 shows the consolidation of the tape structure from FIG. 22 by means of a welding bar device of a tape laying device according to the invention
  • FIG. 24 details of a sealing bar device of a tape laying device according to the invention formed from a plurality of variably controllable sliding shoes
  • FIG. FIG. 25 shows a sliding shoe from FIG. 24 in an enlarged side view
  • FIG. and Fig. 26 shows the consolidation of the tape structure of Fig. 22 by means of a pair of rolls of a tape laying apparatus according to the invention.
  • fiber tapes 93 which are first to be deposited by means of a feed device 10, are removed from a reel or reel 11, cut to the required length (see FIG positioned by means of this over the laying table 61 of a consolidation device 60.
  • Fig. 3 shows the depositing device 20 then moves to the width B of a tape 93 to the right and back to the feeder 10, and engages - as shown in Fig. 4 - from the local coil 11 a newly deposited tape 93 in order to already deposited tape 93 adjacent positioning on the laying table 61 ( Fig. 5 ).
  • the tape laying apparatus 1 shown in FIG. 6 improves the sequence described so far that this 1 provides a second feeder 10 in addition to roll 11 in the end area of the first tapes 93 to be deposited, so that the depositing apparatus 20 moves only laterally and already new tape 93 during the return stroke can take off.
  • each tape 93 is deposited until a first stacking layer 92 is deposited on the laying table 61 ( FIG. 7 ).
  • the latter 61 can be designed to be vacuumable (not shown).
  • a prefixing device 70 which dot-shaped ultrasonic welding heads 71 comprises for pre-fixing of stored tape 93 with the top stacking 92 an already deposited tape structure 91 by means of welds 72nd
  • the prefixing device 70 and / or its ultrasonic welding heads 71 can be part of the depositing device 20 (cf., previous figures ).
  • FIG. 9 shows the storage of further tapes 93 on the uppermost stacking layer 92 of an already laid down tapestry 91 analogously to FIGS. 3 to 5, that is to say without a second feed device 10 in the end region of deposited tapes 93;
  • FIG. 10 shows the deposit of further tapes 93 on the uppermost stacking 92 of an already deposited tapestry 91 analogous to FIG. 6, ie with a second feeder in the end region of deposited tapes 93 or stackings 92 formed therefrom .
  • FIG. 11 finally shows, comparable to that shown in FIG 7 shows the situation for two stacked layers 92 placed on one another.
  • FIGS. 12 to 21 show the individual method steps for constructing and consolidating a laminate 90 by means of a multi-track tape applicator 1 according to the invention, which is preferred given the required increase in laying rates.
  • the tape dispensing device 1 shown in FIGS. 12 to 21 has a multi-track feed device 10 and a multi-track dispenser 20.
  • FIGS. 13 to 20 now show the multi-track sequences analogous to FIGS. 2 to 11.
  • a first portion of a tape structure 91 is obtained in a single-lane (Fig. 1 to 11) or multi-lane (Figs. 12 to 20) sequence, as shown in Fig. 21, another 91 may be added to this first portion of a tape structure Sections of a tape structure 91 are created.
  • FIG. 22 shows a tape structure 91 deposited by means of a tape laying device 1 according to the invention from adjacent and successively deposited tape 93.
  • FIG. 23 shows the consolidation of the tape structure from FIG. 22 by means of a welding bar device 53 of a tape laying device 1 according to the invention.
  • a welding bar device 53 of a tape laying device 1 After completion of a single or multi-track laying process pre-fixed tape structures 91 are fed to a subsequent process.
  • the pre-fixed tapes 93 and / or stacking layers 92 of a deposited tape structure 91 are "clocked" stepwise under an ultrasonic welding bar device 53, which is equipped with a plurality of large-scale ultrasonic excitation devices 30, which are arranged in juxtaposed sliding shoes 80 and the tape structure 91 from stacking layers 92 and / or tapes 93 successively, largely over the entire surface, consolidated.
  • the necessary heat is achieved by a high-frequency mechanical vibration, which arises between the components by molecular and boundary surface friction.
  • the group of friction welding ultrasonic welding is characterized by very low welding times and high efficiency.
  • high-frequency alternating current is generated by means of a generator and transmitted via a shielded cable to an ultrasonic transducer, the so-called converter, which generates mechanical ultrasonic frequency therefrom with the aid of the piezoelectric or magnetostrictive effect.
  • These vibrations are transmitted to the sonotrode via an amplitude transformation piece.
  • sonotrodes which are usually made of steel, aluminum or titanium.
  • the amplitude of the oscillation and the impedance matching are influenced by the shape and mass of the amplitude transformation piece.
  • FIG. 24 shows details of a sealing bar device 54 of a tape dispensing device 1 according to the invention formed from a plurality of ultrasonically adjustable sliding shoes 80 which can be controlled in a variable manner. It can be seen that the plurality of side-by-side sliding shoes 80, in particular with regard to consolidation parameters, are each designed to be controllable separately by means of a separate or control device 30.
  • the lowermost and uppermost stacking layers 92 of a previously deposited tape structure 91 are never plasticized across their thickness in order not to jeopardize the dimensional accuracy of the laminate 90.
  • the joining parameters ie the binder and / or matrix materials
  • the joining parameters are preferably heated exclusively in all the contact surfaces 95 of two stacking layers 92 until they have been plasticized. If there is no joining zone 95 between two stacking layers 92, a connection remains (marked in FIGS. 23 and 26 as a contact clearance area 97).
  • the compounds that is, as far as possible full-surface bonding or welding due to plasticization of the binder and / or matrix materials in, for example, all surfaces 96 of tape 93 to be deposited with the binder and / or matrix materials in joining zones 95 of the uppermost Tapelage 92 an already deposited tape structure 91, arises such that the near-surface binder and / or matrix materials in the molten or flowable state of aggregation due to plasticization completely connect and ideally polymer chains are partially entwined and / or form covalent bonds.
  • FIG. 25 shows an ultrasonic sliding shoe 80 from FIG. 24 in an enlarged side view.
  • the illustrated shoe 80 which can be found in individual or cumulative features of its embodiment detached from the present invention application, is characterized in particular by a zone 81 in the movement or sliding direction G short contact length 83 for coupling ultrasonic energy into the tape structure 91 from Tapelagen 92 and / or tape 93 and by at least one side in the direction of movement or sliding G subsequent long zone 82 for cooling the tape structure 91 of Tapelagen 92 and / or tapes 93.
  • the contact surface 83 of the zone 81 of a shoe 80 for coupling of ultrasonic energy in the sliding direction G simply curved or circular segment-shaped, so that the contact surface 83 is greatly reduced almost to a linear blade ("similar to a circular segment-shaped blade").
  • the contact pressure, the sliding speed and / or the ultrasound intensity can be controlled constant or variable by means of a separate or control device 30, in particular depending on the material properties and / or the temperature and / or thickness of an already deposited tape structure 91 Tapelagen 92 and / or tapes 93, in particular, the surface pressure on the US-coupling zone 81 and the subsequent cooling zone 82 may be controlled differently sized.
  • an ultrasound gliding shoe 80 is preferred, which, for example, at its rear end, equipped with moving sensors (not shown), for example, by means of preferably obliquely coupled ultrasound (transmitter and receiver) checks the consolidation of the tape structure 91 on their quality and providing parameters to the controller 30 for adaptive control of the consolidation, such as, in particular, by changing the US intensity and / or the speed and / or the contact pressure.
  • FIG. 26 shows the consolidation of the tape structure from FIG. 22 by means of a roller pair device 54 of a tape laying device 1 according to the invention.
  • the use of an ultrasonically impinged pair of rollers is of particular interest in the manufacture of tailored blanks 91, in particular of constant thickness.
  • the pair of rollers can be arranged, for example, on one longitudinal side of the laying table 61 and thus alternatively to the previously described consolidation by means of a welding bar device 53 via individual arranged in the rollers of the roller pair means 54 ultrasonic excitation means 30 in the cycle, a - substantially full-surface - welding by means of a continuous pass the tapestry 91 from juxtaposed and stacked stacking layers 92 and / or tapes 93, in particular when deducted from the laying table 61, achieved by the ultrasonically impinged pair of rollers.
  • the binder and / or matrix materials are successively plasticized and consolidated in all the joining zones 95 adjoining each other in the cross-section Q brought to the ultrasound excitation device 50 and of all stacked layers 92 and / or tapes 93 of the tape structure 91 previously obtained to laminate 90, obtained from juxtaposed and stacked tape 93 tape structure 91 advantageously a total of an ultrasonic excitation device 50 are supplied.
  • tapes 93 are advantageously constructed with high laying rates and consolidated with an interesting speed for series-compatible applications.
  • the present invention permits the construction and consolidation of a laminate 90 at high lay rates and speed of interest for production applications.
  • the present invention is particularly useful for industrial construction and consolidation of a laminate 90 for, for example, automotive components that are formed into the final component by a thermoforming process or in conjunction with a flowable fiber composite material in the extrusion or injection molding process.

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  • Engineering & Computer Science (AREA)
  • Robotics (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Thermal Sciences (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

L'invention concerne un procédé d'élaboration et de consolidation d'un stratifié (90) et un dispositif de pose (1) de bande associé. Le procédé selon l'invention consiste à mettre en œuvre les étapes suivantes consistant à : 1. amener une bande (93) à déposer pourvue de matériaux de liant et/ou de matrice sur un dispositif de dépose (20) ; 2. déposer la bande (93) amenée au moyen du dispositif de dépose (20) jusqu'à l'obtention d'une structure (91) de bande correspondant au stratifié (90) et composée d'une bande (93) déposée en juxtaposition et en superposition, la bande (93) déposée en juxtaposition définissant une couche (92) de bande d'une structure (91) de bande ; et 3. commander l'obtention d'un stratifié (90) consolidé par : - l'acheminement d'une section transversale (Q) de la structure (91) de bande composée de couches (92) de bande déposées en juxtaposition et en superposition et/ou de bandes (93) vers un dispositif d'excitation à ultrasons (30) ou inversement ; - la plastification successive des matériaux de liant et/ou de matrice dans toutes les zones d'assemblage (95) adjacentes les unes aux autres, dans la section transversale (Q) acheminée vers le dispositif d'excitation à ultrasons (30), de toutes les couches (92) de bande et/ou de toutes les bandes déposées en juxtaposition et en superposition de la structure (91) de bande ; et - la réunion successive des matériaux de liant et/ou de matrice plastifiés dans toutes les zones d'assemblage (95) adjacentes les unes aux autres, dans la section transversale (Q) acheminée vers le dispositif d'excitation à ultrasons (30), de toutes les couches de bande (92) et/ou de toutes les bandes (93) déposées en juxtaposition et en superposition de la structure (91) de bande.
EP15702781.4A 2014-02-05 2015-02-05 Dispositif de pose de bande et procédé d'élaboration d'un stratifié Withdrawn EP3102393A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014101445.6A DE102014101445A1 (de) 2014-02-05 2014-02-05 Tapelegevorrichtung sowie Verfahren zum Aufbau eines Laminats
PCT/EP2015/052402 WO2015118063A1 (fr) 2014-02-05 2015-02-05 Dispositif de pose de bande et procédé d'élaboration d'un stratifié

Publications (1)

Publication Number Publication Date
EP3102393A1 true EP3102393A1 (fr) 2016-12-14

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EP (1) EP3102393A1 (fr)
DE (1) DE102014101445A1 (fr)
WO (1) WO2015118063A1 (fr)

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AT517938B1 (de) * 2015-11-16 2017-06-15 Fill Gmbh Fertigungsanlage zum Legen von Faserbändern
DE102016110568A1 (de) * 2016-06-08 2017-12-14 Wemhöner Surface Technologies GmbH & Co. KG Verfahren und Vorrichtung zum Fixieren übereinander positionierter Schichten flächigen Materials
DE102016116799A1 (de) 2016-09-08 2018-03-22 Dieffenbacher GmbH Maschinen- und Anlagenbau Tapelegevorrichtung und Tapelegeverfahren zum simultanen Legen von Tapes mit variablem Abstand
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