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WO2012027856A2 - Procédé de fabrication d'un corps métallique - Google Patents

Procédé de fabrication d'un corps métallique Download PDF

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Publication number
WO2012027856A2
WO2012027856A2 PCT/CH2011/000200 CH2011000200W WO2012027856A2 WO 2012027856 A2 WO2012027856 A2 WO 2012027856A2 CH 2011000200 W CH2011000200 W CH 2011000200W WO 2012027856 A2 WO2012027856 A2 WO 2012027856A2
Authority
WO
WIPO (PCT)
Prior art keywords
metal body
curing
metal
pressure
adhesive layers
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.)
Ceased
Application number
PCT/CH2011/000200
Other languages
German (de)
English (en)
Other versions
WO2012027856A3 (fr
Inventor
Georg Senn
Walter Windisch
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.)
MTA MECHATRONIC AG
Original Assignee
MTA MECHATRONIC AG
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 MTA MECHATRONIC AG filed Critical MTA MECHATRONIC AG
Publication of WO2012027856A2 publication Critical patent/WO2012027856A2/fr
Publication of WO2012027856A3 publication Critical patent/WO2012027856A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H01F41/0233—Manufacturing of magnetic circuits made from sheets

Definitions

  • the invention relates to a method and an apparatus for producing a metal body, comprising the steps of: forming a body from a plurality of metal parts, wherein thermosetting adhesive layers are present between the metal parts, and heating the metal body to cure the adhesive layers and to form the metal body.
  • thermosetting adhesive layers are in a typical application plates, usually already in the rolling mill, provided with a layer of, for example, 4-6 pm curable baking enamels.
  • the sheets prepared in this way are delivered on rolls (coils).
  • a stamping unit stamps the desired shape from the sheet metal coil (eg a "cutting pattern" for a stator body) and stacks or packages the stamped sheet metal or lamellae into a package or stack of sheets. This stack of individual sheet metal layers is bonded to a solid body in a hot process.
  • EP 1 568 724 (Du Pont) describes, for.
  • Example the production of a body of stacked steel sheets, wherein a certain aqueous paint (bisphenol A or bisphenol F type epoxy resin) is applied to the sheet and dried and then the sheet stack is baked at elevated temperature.
  • the drying temperature to achieve the active state is in the range of 230-260 ° C.
  • the parts punched from the coated sheet are stacked on top of each other and bonded at 100 - 300 ° C and a pressure of 1 - 6 N / mm 2 .
  • metal wires are provided with a thermosetting adhesive layer and intermediately stored on rolls. From the rolls metal wires of suitable length are unrolled and wound into coils, which z. B. are provided for applications in electromagnetic machines. The coils are such. B. in DE 76 40 891 U 1 (Balzer & Dröll) glued in a hot process into a solid body. For bonding the body of metal parts in the context of the hot process is allowed to act for a certain period of a predetermined pressure and a suitable temperature on the body. These parameters are to be selected based on tests so that the thermosetting adhesive layer creates a permanent connection.
  • thermosetting adhesive coated metal parts can guarantee a certain quality of the adhesive at the end of its production. But that does not mean that this quality is also present during processing. For example, unfavorable conditions during transport and storage can Adhesive change, or the adhesive undergoes some aging processes or undergoes other time-dependent changes. If the adhesive is too fluid in the hot process or the pressure is too high, it can be squeezed in places between the metal layers and cause problems with filigree structures. At the end of the hot process, therefore, individual (or all) metal bodies must be checked by one or more standardized tests (eg peel, tensile, shear tests) to determine whether the adhesion of the metal parts is sufficient. For this purpose, a metal part is removed under prescribed conditions, ie the body must be changed or damaged or even destroyed. Presentation of the invention
  • the object of the invention is therefore to provide an improved method for producing metal bodies of bonded with thermosetting adhesive metal parts, which is fast, non-destructive and can be used in the ongoing production process, so that a process-reliable processing of the thermosetting adhesive is possible.
  • the solution of the problem is defined by the features of claim 1.
  • the method according to the invention for producing a metal body consists of the following steps: forming a body from a plurality of metal parts and heating the metal body to harden adhesive layers and to form the metal body. In this case, thermosetting adhesive layers are present between the metal parts, from which a substance emerges during heating and curing. With a sensor device, an amount of the exiting substance is measured to determine a curing state of the adhesive layer.
  • the sensor device may measure the amount of the exiting substances on the basis of different (physical and / or chemical) effects, the amount being determined absolutely and / or relative to other substances. It may also be sufficient that the escaping substance is even measured (even in minimal quantity), since an exact quantity is not absolutely necessary for certain applications (although exceeding a threshold may suffice).
  • the measuring method of Sensor device can be applied close to the metal body or at a distance to the metal body.
  • thermosetting adhesive is baked enamel, by way of example the advantages and limitations of the invention are shown below. This is intended to explain the invention but not to limit it to the specific case of baked enamel.
  • A coatable solution
  • B dried layer, which is curable or tacky
  • C hardened layer.
  • the state of the baked enamel changes continuously from state A to state C, while the degree of polymerization of the baked enamel from state A to state C increases continuously. So that the individual metal parts can be bonded to a solid body in the hot process, the baked enamel on the metal parts in the state B must be present. In state B, the metal parts can be transported and stored.
  • hot process is meant heating of the adhesive or metal body and curing of the adhesive, wherein the curing of the adhesive and the heating may overlap in time, overlap, congruent or separate.
  • the state of the baked enamel changes continuously from the state A via the state B to the state C
  • the method according to the invention for example, to determine in which state the baked enamel is and how far the continuous change has progressed.
  • various metal bodies are produced by hot processes with clearly defined variations of the parameters of the hot process, wherein the sensor device measures the amount of the material emerging from the adhesive layers during the entire hot process and possibly also during the cooling. After cooling, the adhesion of the bonded metal parts to each other is checked in one or more standardized tests.
  • a very accurate prognosis about the solidification state of the baked enamel coating is obtained, which, for. B. can be used to control and monitor the hot process.
  • quality controls of the metal parts to be processed and coated with baked enamel can be carried out selectively and in the ongoing process.
  • quality or the state of the baked enamel can be controlled during the processing of metal parts, for example, unexpected state changes can be detected and their negative influence (within certain limits) compensated by appropriate measures, for. B. in a prediction step, the process parameters of the hot process depending on the state of the baked enamel coating can be adjusted.
  • the quality control thus already takes place during the production of the metal body, allows immediate influence on the current production process, is done without contact and completely non-destructive and makes a subsequent (destructive) control by standardized tests superfluous.
  • the quality control also allows an optimization of the hot process, which z. B. controls the final quality of the metal body and improved and the manufacturing process can be accelerated. This makes manufacturing more efficient, and process reliability, i. H. the likelihood of the process running as expected and delivering an expected result is increased.
  • the adhesive layer used is a B-based water-based enamel.
  • the advantages of the invention are particularly pronounced since the enamel is applied in state A and then brought to state B for storage and transport purposes.
  • the state B can change (in the direction of A or C), which in the context of the invention is taken into account by measuring the amount of the substance emerging from the baked enamel.
  • the state C (or if necessary, a certain state B) can be achieved in a controlled and optimized manner and with greatly reduced production of rejects, without subsequent (destructive) tests must be performed.
  • Waterborne backcoat is a widely used and easy to process, non-hazardous and relatively environmentally friendly glue.
  • baking enamel instead of baking enamel, other adhesives can be used (physically setting and / or chemically curing), and the adhesive does not have to be applied in one layer, but can also be punctiform, in a pattern, in the form of granules or drops or in any other way and be applied to the metal.
  • the baked enamel can also be in state A at the beginning of the hot process, and instead of water, another solvent or mixtures of solvents can be used, such as organic substances, volatile organic compounds, alcohols, esters, ketones, amines, primary and secondary amides, especially acetone, ethyl acetate, ethyl glycol acetate, toluene, xylene, butanol, tetrahydrofuran or others.
  • the metal body is formed by stacking sheet metal parts.
  • Sheet metal parts and in particular stamped sheet metal parts are simple, quick and inexpensive to manufacture, and by coating with adhesive (and possibly other coatings) before punching can be quickly, easily, inexpensively and controlled produce a variety of precisely manufactured metal parts of high quality.
  • Stacks of sheets are excellently suited for use in electromagnetic machines and are currently in widespread use. In this field and in particular in the production of rotors and / or stators of electric motors, the invention can be used particularly advantageously.
  • the metal body can also consist of parts other than sheet metal parts, such as wire, metal foils, grains or other metal parts of various shapes and sizes.
  • the metal body is held in a closed cavity during heating and curing, from which the substances emerging from the adhesive layers are removed.
  • the heating may be accelerated by various means such as direct heat exchange by contact with heating elements.
  • those from the adhesive layers Exiting substances are clearly associated with the held in the cavity metal body, and the measurement of the amount of the exiting substances can be made at or in their removal.
  • a cavity can also play an important role in the shaping of the metal body and precisely define, for example by direct contact, the spatial extent of the metal body, wherein a possible escape of the adhesive between the metal parts can also be controlled.
  • the metal body can undergo heating and curing in a completely closed environment or cavity from which the exiting from the adhesive substances are not removed. Or it can be completely dispensed with a closed environment or cavity.
  • the nature of the environment also affects the location of the measurement of the amount of the substance exiting the adhesive layers. If the metal body passes through the hot process, for example, in a completely closed environment, the sensor device can measure the amount of the leaked substance in the closed environment outside the metal body.
  • the closed environment can also have at least one outlet opening through which the substances emerging from the adhesive layers can escape or be removed from the closed environment. A measurement of the amount of the exiting substance can then also take place behind the at least one outlet opening, ie not only within but also outside the closed environment.
  • At least one inlet opening is particularly advantageous for at least one inlet opening to be provided in the closed environment, so that the closed environment can be traversed by a fluid which absorbs the escaping substances as carrier medium and carries them away through the at least one outlet opening.
  • the amount of the exiting substances can then be measured in the closed environment or behind the at least one outlet opening in the carrier medium.
  • the removal of the exiting substances can prove to be very advantageous because saturation of the environment with the exiting material and also a re-entry into the adhesive is prevented. But it can also be dispensed with a closed environment and the Sensor device operated according to close and / or targeted, which allows a clear assignment of the measured value to a metal body.
  • the metal body is kept under a predetermined pressure during the heating and curing, in particular in the case of stacked sheet metal bodies under a predetermined axial pressure.
  • the heating and curing of the metal body in conjunction with pressure is a particularly advantageous and widespread method for producing bonded metal bodies, since the metal parts are pressed by the pressure into the desired shape and the adhesive thereby comes to maximized contact with the metal parts.
  • an axial pressure is particularly great advantage, since for example punched sheets have a punched edge. If sheets in a stack lie on such punched edges on top of each other, the punched edges act like springs and the stack must be pressed together in the axial direction so that the sheets touch each other flatly.
  • the applied pressure in the hot process does not exceed a critical maximum pressure, which gives rise to such a back pressure in the metal body after cooling, that the metal body deformed after a release of pressure, ruptures or breaks apart.
  • the metal body can be kept under pressure only during heating or curing or during cooling. It is also conceivable to apply pressure for a short time.
  • the metal body can be completely or even partially pressurized, the direction of the pressure can be adjusted as required. But it can also be completely dispensed with applying pressure.
  • the pressure is controlled as a function of the measured amount of the exiting material.
  • the pressure By controlling the pressure as a function of the amount of the exiting material can be responded to changes in the degree of solidification of the adhesive.
  • the pressure can be increased or decreased depending on the stage of the polymerization to a promote optimal curing of the adhesive. As a rule, the spatial extent of the adhesive decreases with increasing polymerization and increasing amount of leaked substances (for example due to the outgassing of solvents), which can be taken into account by a corresponding applied pressure.
  • the pressure can also be controlled independently of the amount of the exiting substance, or even applied entirely uncontrolled (eg by mechanical stops for the printing mechanism).
  • a spatial extent of the metal body and in particular the height of the stacked sheet metal body during heating and curing is measured, wherein the pressure in view of the required after curing spatial extent or height is specified.
  • the hot process can be selectively influenced in order to design the resulting expansion according to the requirements.
  • a specification dependent on the spatial extent of the metal body of the pressure applied to the metal body is advantageous, since the metal body can be shaped during the hot process and its spatial extent is subject to changes; For example, the metal body may expand when heated or contract during the polymerization of the adhesive or the escape of the material exiting the adhesive.
  • the height of the stack is of great importance, since the greatest change in the spatial extent is to be expected in the axial direction and the applied pressure in the axial direction has a great influence on the resulting spatial extent and in particular the sheet stack height.
  • the sheet stack height can be varied on the one hand by the number of stacked sheet metal parts, where the height can only be changed in steps of a sheet metal thickness (by an additional sheet metal part, the height increases to a sheet metal thickness, by a distant sheet metal part, the height drops by a sheet metal thickness).
  • the sheet stacking body can be compressed to heights which lie between the steps of the sheet metal thicknesses.
  • a pressure applied to the sheet stacking body can also be used specifically to press out adhesive between the sheet metal parts in order to reduce the height of the stacked sheet metal body.
  • the pressure can be controlled as a function of the spatial extent of the metal body so z. B. be responded to changes in the dimensions of the hot process.
  • the applied pressure can be regulated to a constant value independently of a varying spatial extent or can follow a predefined profile dependent on the spatial extent of the metal body.
  • the pressure may be applied regardless of the spatial extent of the metal body or even entirely.
  • the spatial extent of the metal body and in particular the height of the stacked sheet metal body can also be measured before and / or after the hot process (for example during cooling) or only in parts thereof.
  • the inventive device for carrying out the method further includes a device for producing the metal body, which comprises a tool having at least one cavity for receiving a body of a plurality of metal parts. Between the metal parts, thermosetting adhesive layers and at least one heating device are provided. The heating device serves to heat the metal parts and to harden the adhesive layers and thus to form the metal body. In this case, a sensor device is provided to measure the amount of the substance emerging from the adhesive layers. Advantages and alternatives of this device are already explained above in the corresponding places of the description of the method.
  • a control unit for determining a curing state of the adhesive layers is present in the device.
  • the device preferably has a control unit which determines the curing state of the adhesive layer on the basis of information which originates from the sensor device.
  • the control unit may advantageously comprise electronic circuits, microprocessors or other data processing equipment. Advantages and alternatives of determining the curing state of the adhesive layer have already been explained above at the corresponding points in the description of the method.
  • the control unit can also make a further analysis and / or prognosis of the curing state and record or process additional information regarding the state of the metal body by further components of the device and influence the hot process accordingly.
  • control unit z. B. only be provided for checking, and the inventive device can be operated, for example, at constant process parameters.
  • the control unit can, for. B. depending on the state of the adhesive layer give a warning signal, so that the process parameters can be adjusted manually.
  • a pressing device to apply a predetermined pressure to the metal body, in particular to apply a sheet stacking body with axial pressure.
  • the pressing device can, for example, be a pressure stamp, a printing mechanism (i.e. pressure generator, pressure control) as well as other components such as communication means, displays, input possibilities,
  • the measuring device may, for example, measuring devices of the position of parts of the pressing device or completely independent measurement methods such as induction or. Measure the resistance of the stack or (for example, optically) measuring through a viewing window.
  • FIG. 1 Schematic representation of a section through an inventive
  • FIG. 2 Schematic diagram of a typical course of temperature
  • Fig. 1 is a section through an inventive device is shown schematically in side view.
  • the device is currently in a state in which the adhesive layers cure in a heated metal body.
  • the device consists of a main body 101, which comprises a cavity 103 which is currently filled with a stack of sheet metal parts 102, an upper pressure stamp 104 with upper pressure mechanism 105, and a lower pressure stamp 106 with a lower pressure mechanism 107.
  • a portion of the thermal separation device 108 is thermally isolated from the remainder of the device and is provided with fluid channels 109.
  • a fluid enters the cavity through an inlet channel 110 103, flows past the stacked sheet metal parts 102 and passes through an outlet channel 1 1 1 out of the device.
  • a sensor device 1 12 is positioned, which measures a lot of emerging from the adhesive layers of the stacked sheet metal parts 1 12 emerging substances.
  • the sensor device 1 12 is connected to a control unit 1 13, which in turn is connected to a stack height measuring device 1 14, the upper pressure mechanism 105 and the lower pressure mechanism 107.
  • the stack height measurement 1 14 determines the height of the stack of sheet metal parts 102 in the cavity 103 by processing a position measurement 1 15 of the upper plunger 104 and a position measurement 1 16 of the lower plunger 106.
  • the device has a charging slide 1 17.
  • the production of a bonded metal body is carried out according to the invention by the following steps:
  • the upper pressure mechanism 105 moves the upper plunger 104 so far out of the main body 101 that the charging slide 1 17 can introduce sheet metal parts 102 individually into the cavity 103.
  • the lower plunger 106 is positioned so that the introduced from the loading slide 1 17 sheet metal part 102 comes to rest on the lower plunger 106 or lying on the lower plunger 106 sheet metal part (s).
  • the lower plunger 106 then moves down to make room for insertion of another sheet metal part 102; the upper plunger 104 presses if necessary, or the sheet metal parts 102 down. Individually sheet metal parts 102 are piled up until a stack of the desired height is formed.
  • the stack height measuring device 1 14 processes information from the position measurement 15 of the upper punch 104 and the position measurement 16 of the lower punch 106. After reaching the desired stack height, the two plungers 104 and 106 apply pressure to the stack, the control unit 1 13 controls the printing mechanisms 105 and 107. Thereafter, a first fluid is pumped through the fluid channels 109, which heats the insulated from the thermal separation 108 part of the device and thereby the cavity 103. The first fluid is connected to a heating circuit and transports heat energy in the isolated part of the device, which then also spreads on the sheet pile and glued on both sides with baked enamel sheet metal parts.
  • a second fluid flows through the inlet channel 1 10 in the cavity 103, flows past the sheet stack, then passes through the sensor device 1 12 and passes through the outlet channel 1 1 1 out of the device.
  • the second fluid serves as a transport medium for the substances emerging from the baked enamel and at the same time can also support the hot process by correspondingly adapted temperature and / or flow rate.
  • the cooling is initiated by the fluid channels 105 is separated for the first fluid from the heating circuit and connected to a separate cooling circuit with cold first fluid.
  • the second fluid can also support a correspondingly cold temperature and / or an increased flow velocity to assist the cooling.
  • the two pressure stamps 104 and 106 release the stack from the previously applied pressure and displace downwards so far that the stack can be removed from the apparatus (possibly the upper pressure stamp 104 has to be moved slightly upwards).
  • FIG. 2 shows a schematic diagram of a typical course of the method according to the invention, in which a temperature T of the stack of sheet metal parts 102 (solid line) and the pressure p (dashed line) applied to the stack of sheet metal parts 102 are plotted against the time t is.
  • the stack is in a suitable position for passing through the hot process in the cavity 103 and has the desired height.
  • the control unit 1 13 which controls all subsequent changes of T and p
  • the two plungers 104 and 106 apply a pressure p1 to the stack.
  • the first fluid flows out of the heating circuit through the fluid channels 109 and thereby ultimately brings heat energy into the sheet stack, which heats up.
  • the stack After a period of heating 201, the stack reaches a temperature T1, which it maintains for a period of constant temperature 202. During part of the heating 201 and the time span the constant temperature 202, the temperature is sufficiently high that the baked enamel polymerizes further and solvent (water) exits the baked enamel, ie, that the baked enamel crosslinks or more generally formulated cures.
  • This period of curing 204 extends over a portion of heating 201 time and the entire period of constant temperature 202, but does not claim the full duration of the hot process (which is composed of the periods of heating 201 and constant temperature 202).
  • the stack After the stack has hardened sufficiently (the control unit evaluates this information from the sensor device 1 12), the stack is brought in a period of cooling 203 to room temperature TO.
  • the applied pressure initially has the value p 1.
  • the control unit 13 determines the pressure p necessary for the resulting spatial extension of the stack, which pressure at a point in time in the constant temperature 202 p 1 changes to pressure p2.
  • the control unit therefore triggers a pressure increase 205 from p1 to p2.
  • the control unit regulates to the pressure p2, whereby the hardening of the baked enamel (in particular due to the escape of water from the enamel and the increasing degree of polymerisation) causes the stack to lose its height, causing the pressure p to drop and to be readjusted.
  • the device according to the invention is not restricted to individual cavities, for example, but can also be applied to several cavities or to a plurality of metal bodies
  • the amount of the exiting substance does not necessarily have to be assigned to a single metal body, but the hot process of several metal bodies is simultaneously monitored and controlled.
  • the heating and / or cooling of the metal body can be accomplished for example by other means than fluids, such as by electric heating cartridges and / or coils, induction processes, Peltier elements, chemical processes or by compression or expansion mechanisms and the like, wherein also any Combination of these methods is conceivable.
  • the correlation between the degree of solidification or degree of polymerization of the adhesive layer and the amount of the material emerging from the adhesive layer can be calculated or tracked throughout the manufacturing process (permanent in-situ monitoring), or the correlation can only be phased or even pointwise.
  • z. B. by a threshold value for the amount of the material emerging from the adhesive layer, a time are set at which the degree of solidification has reached a predetermined level.
  • the correlation may be based on various mathematical operations in which the amount of the exiting substance, for example, as current absolute and / or relative value is incorporated.
  • temporal development in particular a summation (eg temporal integral) and / or a relative change (eg the first derivation of a time-dependent function) of the quantity of the exiting substance can also be included in the correlation.
  • self-learning algorithms and neural network-type algorithms may also be considered as a way to correlate the amount of leaking material and the degree of solidification, particularly in complicated contexts.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Laminated Bodies (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

L'invention concerne un procédé et un dispositif de fabrication d'un corps métallique selon les étapes suivantes: former un corps à partir de plusieurs éléments métalliques, des couches adhésives thermodurcissables étant disposées entre les éléments métalliques, et chauffer le corps métallique pour faire durcir les couches adhésives et pour former le corps métallique. Selon l'invention, lors du chauffage et du durcissement, une matière sort des couches adhésives utilisées, et une quantité de cette matière sortant du corps métallique est mesurée au moyen d'un dispositif de détection pour déterminer l'état de durcissement de la couche adhésive. La couche adhésive préférentiellement utilisée est un adhésif durcissant à chaud à base aqueuse se trouvant dans l'état B et le corps métallique est formé par superposition d'éléments en tôle (102).
PCT/CH2011/000200 2010-09-01 2011-08-30 Procédé de fabrication d'un corps métallique Ceased WO2012027856A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH01411/10A CH703695A1 (de) 2010-09-01 2010-09-01 Verfahren zur Herstellung eines Metallkörpers.
CH1411/10 2010-09-01

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Publication Number Publication Date
WO2012027856A2 true WO2012027856A2 (fr) 2012-03-08
WO2012027856A3 WO2012027856A3 (fr) 2012-06-21

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PCT/CH2011/000200 Ceased WO2012027856A2 (fr) 2010-09-01 2011-08-30 Procédé de fabrication d'un corps métallique

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WO (1) WO2012027856A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3089335A1 (fr) * 2015-04-30 2016-11-02 STAMPTEC-Holding GmbH Dispositif et procédé de liaison de parties de tôles à un paquet de tôles

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019103133B3 (de) 2019-02-08 2020-07-02 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Verfahren zum Herstellen eines Stator-Blechpakets einer elektrischen Maschine
EP3876403A1 (fr) * 2020-03-02 2021-09-08 voestalpine Stahl GmbH Procédé de paquetage des parties de tôle en paquets de tôles

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7640891U1 (de) 1976-12-29 1977-04-21 Balzer & Droell Kg, 6369 Niederdorfelden Vorrichtung zum verbacken backlackisolierter spulendraehte
EP1568724A1 (fr) 2004-02-27 2005-08-31 E.I. Du Pont De Nemours & Company Incorporated Procédé de production de noyaux en tôle en acier électrique

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5450919A (en) * 1977-09-30 1979-04-21 Matsushita Electric Ind Co Ltd Manufacture of iron core
JP4732071B2 (ja) * 2005-08-26 2011-07-27 黒田精工株式会社 金属薄板積層体の製造装置
JP5323400B2 (ja) * 2008-06-16 2013-10-23 黒田精工株式会社 積層鉄心の製造装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7640891U1 (de) 1976-12-29 1977-04-21 Balzer & Droell Kg, 6369 Niederdorfelden Vorrichtung zum verbacken backlackisolierter spulendraehte
EP1568724A1 (fr) 2004-02-27 2005-08-31 E.I. Du Pont De Nemours & Company Incorporated Procédé de production de noyaux en tôle en acier électrique

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3089335A1 (fr) * 2015-04-30 2016-11-02 STAMPTEC-Holding GmbH Dispositif et procédé de liaison de parties de tôles à un paquet de tôles
EP3506468A1 (fr) * 2015-04-30 2019-07-03 voestalpine Automotive Components Dettingen GmbH & Co. KG Dispositif et procédé d'assemblage des parties de tôles pour former un paquet de tôles

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WO2012027856A3 (fr) 2012-06-21
CH703695A1 (de) 2012-03-15

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