WO2013106881A1 - Vorrichtung und verfahren zum verbinden von blechteilen zu einem blechpaket - Google Patents
Vorrichtung und verfahren zum verbinden von blechteilen zu einem blechpaket Download PDFInfo
- Publication number
- WO2013106881A1 WO2013106881A1 PCT/AT2013/050016 AT2013050016W WO2013106881A1 WO 2013106881 A1 WO2013106881 A1 WO 2013106881A1 AT 2013050016 W AT2013050016 W AT 2013050016W WO 2013106881 A1 WO2013106881 A1 WO 2013106881A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- adhesive
- sheet metal
- metal parts
- sheet
- laminated core
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000003475 lamination Methods 0.000 title abstract 3
- 239000000853 adhesive Substances 0.000 claims abstract description 109
- 230000001070 adhesive effect Effects 0.000 claims abstract description 109
- 239000002184 metal Substances 0.000 claims abstract description 90
- 239000002245 particle Substances 0.000 claims abstract description 43
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000002041 carbon nanotube Substances 0.000 claims abstract description 33
- 229910021393 carbon nanotube Inorganic materials 0.000 claims abstract description 33
- 230000005670 electromagnetic radiation Effects 0.000 claims abstract description 30
- 230000005855 radiation Effects 0.000 claims abstract description 24
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims abstract description 18
- 230000005284 excitation Effects 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims description 28
- 238000005520 cutting process Methods 0.000 claims description 6
- 239000000615 nonconductor Substances 0.000 claims description 5
- 230000005684 electric field Effects 0.000 claims description 4
- 230000005672 electromagnetic field Effects 0.000 claims description 4
- 238000005304 joining Methods 0.000 claims description 4
- 230000006698 induction Effects 0.000 claims description 3
- 230000001939 inductive effect Effects 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims 1
- 239000010410 layer Substances 0.000 description 10
- 239000000945 filler Substances 0.000 description 3
- 239000012790 adhesive layer Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 238000012432 intermediate storage Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
- C09J5/06—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers involving heating of the applied adhesive
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B11/00—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding
- F16B11/006—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding by gluing
Definitions
- the invention relates to a device and a method for joining sheet metal parts to a laminated core, in which method sheet metal parts of a sheet metal strip with at least partially a layer comprising curable polymeric adhesive, separated, in particular punched, the adhesive at least partially heated, the separated and heated Adhesive sheet metal part is joined together with at least one other sheet metal part and glued to form a laminated core.
- the invention is therefore based on the object, starting from the above-described prior art, to provide an easily manageable method by which sheet metal parts can be reliably and comparatively easily connected to a dimensionally accurate laminated core.
- the method should be particularly flexible in its possible application and tolerant of parameter fluctuations in the sheet to be processed.
- the invention achieves the stated object in that electromagnetically excitable particles, in particular carbon nanotubes (CNT) and / or magnetite, of the adhesive are irradiated with electromagnetic radiation, in particular microwave radiation, and as a result, heat the adhesive, the sheet being irradiated during the irradiation of the particles is used as a reflector for the passing through the adhesive portion of electromagnetic radiation to use this reflected radiation for electromagnetic excitation of the particles. If the electromagnetically excitable particles of the adhesive are irradiated with electromagnetic radiation, in particular microwave radiation, and as a result these particles heat the adhesive, an easily manageable procedure for contactless heating of the adhesive can be achieved.
- electromagnetic radiation in particular microwave radiation
- CNT carbon nanotubes
- Fe 3 O 4 magnetite
- magnetite can ensure magnetization due to its ferromagnetic properties and on the other hand also a comparatively high insulating effect due to the oxidic character of its chemical compound.
- a use of magnetite with a particle size ⁇ 10 pm are distinguished, because even with increased thermal stress of the adhesive, the risk of breakdown or short circuit can be significantly reduced. A comparatively high stability of the package can thus be ensured. It is generally conceivable to add magnetite as a filler to the adhesive.
- the energy required to heat the adhesive compared to a contact heating can be kept low when the irradiation of the particles, the sheet is used as a reflector for the passing through the adhesive portion of electromagnetic radiation, to this reflected radiation for electromagnetic excitation of the particles to use.
- it can be expected in particular with a bundled electromagnetic radiation that a relatively high proportion of electromagnetic radiation penetrates the adhesive.
- Loss of electromagnetic radiation can thus be avoided, even if a bundled by a funnel electromagnetic radiation is used to excite these particles.
- Particularly advantageous process conditions for bonding the sheet metal parts can be created if the reflected radiation is used to equalize the adhesive temperature.
- Such a more uniform adhesive heating can be used for particularly good reproducible bonding conditions and / or properties, so as to increase the reliability of the connection of the sheet metal parts to a dimensionally accurate laminated core.
- the layer is provided with an electrical insulator between the adhesive and the metal sheet.
- This insulator which electrically separates the adhesive from the sheet, can be applied to the adhesive provided on the sheet and / or can already be located between the sheet and the adhesive.
- a possibly electrically conductive adhesive with carbon nanotubes (CNT) for producing a laminated core for use as an electromagnetic component, for example as a rotor and stator plate of electrical machines, dynamo plate, electric sheet, throttle or transformer plate to use.
- the carbon nanotubes (CNT) in the adhesive are aligned in their mutual position with the help of an electric and / or electromagnetic field, the risk of an electrical short circuit of the sheet metal parts can be significantly reduced. It can thus namely an electrical bridge over the electrically conductive Carbonnanotubes by the otherwise electrically insulating adhesive steadfastly be prevented.
- the production reliability of the method according to the invention can thereby be significantly improved.
- the process conditions for forming a stable cohesive connection between the sheet metal parts can be further improved by the sheet metal parts are joined together under pressure. For example, this can provide a minimum pressure for a secure surface bonding, which reliable sheet metal parts can be connected to a dimensionally accurate laminated core.
- the sheet metal parts can be pre-glued to a laminated core by the electromagnetic excitation of the particles and (possibly after an intermediate storage) in a further step, the laminated core are hardened by curing the adhesive.
- inductive heating of the sheet metal parts may prove to be particularly suitable for such curing.
- the invention has also taken on the task, starting from the above-described prior art to provide a sturdy device, can be reliably connected to the sheet metal parts to a dimensionally accurate laminated core cohesively.
- the adhesive has electromagnetically excitable particles, in particular carbon nanotubes (CNT) and / or magnetite
- the heating device comprises a radiation source, which with its electromagnetic radiation, in particular microwave radiation, onto the electromagnetically excitable particles of the adhesive is directed, wherein the sheet forms a reflector for the passing through the adhesive portion of electromagnetic radiation.
- the heating device comprises a radiation source which is directed with its electromagnetic radiation onto the electromagnetically excitable particles of the adhesive.
- the radiation source can now provide for a rapid and full-surface heating of the adhesive, which can be reliably connected sheet metal parts to a dimensionally accurate laminated core cohesively.
- carbon nanotubes (CNT) have been found to be particularly advantageous for these purposes when they are irradiated with a particular bundled microwave radiation.
- magnetite (Fe 3 0 4 ) may be particularly suitable for this purpose. This can on the one hand be excited by electromagnetic radiation, for example in the microwave and IR spectral range, for heating the adhesive and on the other hand also significantly increase the stability of the laminated core.
- the sheet forms a reflector for the passing through the adhesive portion of electromagnetic radiation.
- This can be of crucial importance, in particular in the case of laminated cores, which are used as electromagnetic components, since their adhesive layer is kept comparatively thin for high bundling capacities.
- the device according to the invention can thus reduce operating costs through its energy efficiency and nevertheless ensure a stable bonding of the sheet-metal parts.
- the sheet can reflect the portion of electromagnetic radiation passing through the adhesive back onto the particles of the adhesive such that a uniform heating of the adhesive occurs.
- the device can thus ensure a stable bond, in particular pre-bonding up to curing, which can provide a reliable cohesive connection.
- the separating device has a cutting tool which is displaceably mounted in the direction of the sheet metal parts of the stacking device for pressure loading of the sheet metal parts.
- a curing device is provided for the final curing of the adhesive of the pre-bonded laminated core, a shear radiation pre-glued laminated core are easy to handle. A solid cohesive connection can thus be formed even after a possible intermediate storage of the laminated core, without having to fear a deterioration of the dimensional accuracy of the laminated core. A stable device can be created.
- the structural simplicity and the stability of the device can be further increased or improved if the curing device has at least one press with an induction coil for curing the laminated core under pressure.
- the magnetite distributed in the adhesive has a particle size ⁇ 10 ⁇ m, the risk of a short circuit between the two sheet metal parts can be considerably reduced even if the thermal stress on the adhesive is increased. A comparatively high stability of the package can thus be ensured.
- the invention may be particularly distinguished when a sheet-metal strip having at least some of a layer which has a curable polymeric adhesive with electromagnetically excitable particles, in particular carbon nanotubes (CNT) and / or magnetite, is used to produce a laminated core.
- a curable polymeric adhesive with electromagnetically excitable particles in particular carbon nanotubes (CNT) and / or magnetite
- the layer has an electrical insulator provided between the sheet and the adhesive.
- a sheet-metal strip may be suitable, which at least in some areas has a layer which comprises curable polymeric adhesive with electromagnetically excitable particles, in particular carbon nanotubes (CNT) and / or magnetite.
- curable polymeric adhesive with electromagnetically excitable particles, in particular carbon nanotubes (CNT) and / or magnetite.
- CNT carbon nanotubes
- Show it 1 is a torn side view of a device for bonding sheet metal parts to a laminated core
- Fig. 2 is an enlarged view of a portion of the heating device of the apparatus of Fig. 1 and
- Fig. 3 is a side view of the sheet under the influence of an electric and / or electromagnetic field.
- the device 1 shown by way of example in FIG. 1 shows a sheet-metal strip 2 from which a plurality of sheet metal parts 3 are separated.
- a separating device 4 is provided which can punch out sheet metal parts 3 by up and down movements 6 of its cutting tool 7 in cooperation with a stacking device 8 from the sheet metal strip 2.
- These sheet metal parts 3 are urged by the punching operation in a respective shaft 9 of the stacking device 8, where they are wegbewegbar from the sheet metal strip 2.
- a separation of a sheet metal part 3 with a laser is conceivable, which has not been shown in detail.
- the sheet metal parts 3 accommodated in the shaft 9 are subsequently pre-connected to form a laminated core 11, so that they are available for handling as a processing unit for the next process steps.
- the adhesive 12 which is preferably applied over its entire surface on one longitudinal side of the metal strip 2, and thus forms a layer 13, heated, so that when joining the sheet metal parts 3, a physical bonding between these sheet metal parts 3 can be made possible.
- a heating device 14 is provided for purposes of this heating of the adhesive 12.
- This heating device 14 may, as shown in Fig. 1, its own assembly and / or in the cutting tool 7 may be provided.
- the adhesive 12 of a punched sheet metal part 3 can be heated, after which a further punched sheet metal part 3 is pressed onto this by the cutting tool 7. Contact of the heated adhesive 12 with the device 1 can thus be avoided, which prevents undesired sticking and creates a stable device 1.
- the sheet-metal strip 2 requires a layer 13 on the upper side of the sheet-metal strip 2.
- the adhesive 12 is provided with electromagnetically excitable particles 15, preferably carbon nanotubes (CNT) and / or magnetite (Fe 3 O 4 ), as shown schematically in FIG. 2. These particles can be added to the adhesive 12 as fillers, for example. In the case of magnetite as a filler, the safety against a short circuit on the laminated core 11 is also increased, which is particularly noticeable with a particle size of ⁇ 10 ⁇ m.
- the particles 15 are homogeneously distributed in the adhesive 12.
- the heating device 14 now comprises a radiation source 16, wherein the electromagnetic radiation 17 emitted by it, in particular microwave radiation, is directed onto the electromagnetically excitable particles 15 of the adhesive 12.
- the particles 15 absorb the electromagnetic radiation 17, which is converted into heat, and thus can ensure a uniform heating of the adhesive 12.
- advantageous process conditions arise when the sheet 5 forms a reflector 18 for the passing through the adhesive 12 portion of electromagnetic radiation 17, because thus this proportion of electromagnetic radiation 17 can be used to heat the adhesive 12.
- the adhesive 12 can also be excited to such an extent by the electromagnetic radiation 17 that a pre-bonding is dispensed with and thus the laminated core 11 is cured immediately.
- the device 1 can be simplified structurally, because a specially provided curing device 19 would no longer be required, which has not been shown in detail.
- the sheet 5 reflects the passing through the adhesive 12 portion of electromagnetic radiation 17 back to the particles 15 of the adhesive 12 such that a uniform heating of the adhesive 12 occurs.
- This can be made possible for example by a modulation of the electromagnetic radiation 17, by changing the feed rate of the metal strip 2 and / or its position change.
- shielded particles 15 which are otherwise covered by cover can also be detected during irradiation and used to heat the adhesive 12. Even deep layers in the adhesive 12 can thus contribute to equalize the temperature of the adhesive 12.
- the sheet metal parts 3 are joined together under pressure by the cutting tool 7 of the separating device 4 is displaceably mounted for pressure loading of the sheet metal parts 3 in the direction of the sheet metal parts 3 of the stacking device 8. This can be accompanied by a Vorverkleben the sheet metal parts 3 or a curing of the laminated core 1 1.
- the laminated core 11 is introduced into a curing device 19.
- These Aushärteeinnchtung 19 also has a press 21 with an induction coil 22 for curing the laminated core 1 1 under pressure.
- the layer 13 has an electrical insulator 23 between the adhesive 12 and sheet 5.
- the insulator 23 may also be subsequently applied to the adhesive 12 in order to improve the electrical insulation between the laminated cores.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112013000639.1T DE112013000639A5 (de) | 2012-01-20 | 2013-01-18 | Vorrichtung und Verfahren zum Verbinden von Blechteilen zu einem Blechpaket |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT500082012A AT512405B1 (de) | 2012-01-20 | 2012-01-20 | Vorrichtung und verfahren zum verbinden von blechteilen zu einem blechpaket |
ATA50008/2012 | 2012-01-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013106881A1 true WO2013106881A1 (de) | 2013-07-25 |
Family
ID=48013664
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AT2013/050016 WO2013106881A1 (de) | 2012-01-20 | 2013-01-18 | Vorrichtung und verfahren zum verbinden von blechteilen zu einem blechpaket |
Country Status (3)
Country | Link |
---|---|
AT (1) | AT512405B1 (de) |
DE (1) | DE112013000639A5 (de) |
WO (1) | WO2013106881A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015202415A1 (de) * | 2015-02-11 | 2016-08-11 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Klebstoff, Verfahren zur berührungslosen Temperaturmessung des Klebstoffs und Verfahren zur verbesserten Verbindung zweier Bauteile mit Klebstoff |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1479239A1 (de) * | 1965-12-27 | 1969-06-04 | Hoechst Ag | Verfahren zum Verbinden von Gebilden aus thermoplastischen Kunststoffen unter Waermeeinfluss |
EP0355778B1 (de) | 1988-08-25 | 1993-12-22 | L. SCHULER GmbH | Verfahren und Vorrichtung zum Verkleben (Verbacken) von gestanzten Elektroblechen |
DE10303893A1 (de) | 2003-01-30 | 2004-08-12 | Mds Maschinen- Und Werkzeugbau Gmbh | Vorrichtung zum Verbinden zweier Bauteile oder Fügeelemente durch Kleben |
DE102009019483A1 (de) * | 2009-05-04 | 2010-11-11 | Eads Deutschland Gmbh | Klebstoff-Zusammensetzung für lösbare Klebeverbindungen und Modifikation der Verkapselungsmaterialien für gezielte Energieeinbringung |
JP2010260174A (ja) * | 2009-04-28 | 2010-11-18 | Taisei Plas Co Ltd | 金属合金と繊維強化プラスチックの複合体の製造方法 |
-
2012
- 2012-01-20 AT AT500082012A patent/AT512405B1/de active
-
2013
- 2013-01-18 DE DE112013000639.1T patent/DE112013000639A5/de active Pending
- 2013-01-18 WO PCT/AT2013/050016 patent/WO2013106881A1/de active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1479239A1 (de) * | 1965-12-27 | 1969-06-04 | Hoechst Ag | Verfahren zum Verbinden von Gebilden aus thermoplastischen Kunststoffen unter Waermeeinfluss |
EP0355778B1 (de) | 1988-08-25 | 1993-12-22 | L. SCHULER GmbH | Verfahren und Vorrichtung zum Verkleben (Verbacken) von gestanzten Elektroblechen |
DE10303893A1 (de) | 2003-01-30 | 2004-08-12 | Mds Maschinen- Und Werkzeugbau Gmbh | Vorrichtung zum Verbinden zweier Bauteile oder Fügeelemente durch Kleben |
JP2010260174A (ja) * | 2009-04-28 | 2010-11-18 | Taisei Plas Co Ltd | 金属合金と繊維強化プラスチックの複合体の製造方法 |
DE102009019483A1 (de) * | 2009-05-04 | 2010-11-11 | Eads Deutschland Gmbh | Klebstoff-Zusammensetzung für lösbare Klebeverbindungen und Modifikation der Verkapselungsmaterialien für gezielte Energieeinbringung |
Non-Patent Citations (1)
Title |
---|
DATABASE WPI Week 201079, Derwent World Patents Index; AN 2010-P21541, XP002697666 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015202415A1 (de) * | 2015-02-11 | 2016-08-11 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Klebstoff, Verfahren zur berührungslosen Temperaturmessung des Klebstoffs und Verfahren zur verbesserten Verbindung zweier Bauteile mit Klebstoff |
DE102015202415B4 (de) * | 2015-02-11 | 2021-02-11 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Klebstoff, Bauteil, Verfahren zur berührungslosen Temperaturmessung des Klebstoffs, Verfahren zur verbesserten Verbindung zweier Bauteile mit dem Klebstoff und Verwendung des Klebstoffs |
Also Published As
Publication number | Publication date |
---|---|
AT512405B1 (de) | 2013-08-15 |
AT512405A4 (de) | 2013-08-15 |
DE112013000639A5 (de) | 2014-10-09 |
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