EP3931752A1 - Procédé de marquage de composants coulés en métal au moyen d'un transpondeur électronique - Google Patents

Procédé de marquage de composants coulés en métal au moyen d'un transpondeur électronique

Info

Publication number
EP3931752A1
EP3931752A1 EP20707628.2A EP20707628A EP3931752A1 EP 3931752 A1 EP3931752 A1 EP 3931752A1 EP 20707628 A EP20707628 A EP 20707628A EP 3931752 A1 EP3931752 A1 EP 3931752A1
Authority
EP
European Patent Office
Prior art keywords
casting
metal casting
identification
rfid
initial
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Withdrawn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
EP20707628.2A
Other languages
German (de)
English (en)
Inventor
Thomas Rahn
Christoph Pille
Franz-Josef Wöstmann
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.)
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
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 Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Publication of EP3931752A1 publication Critical patent/EP3931752A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/0723—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C23/00—Tools; Devices not mentioned before for moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D46/00—Controlling, supervising, not restricted to casting covered by a single main group, e.g. for safety reasons
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F7/00—Signs, name or number plates, letters, numerals, or symbols; Panels or boards
    • G09F7/16—Letters, numerals, or other symbols adapted for permanent fixing to a support

Definitions

  • the invention is in the field of mechanical engineering and foundry technology and also in the field of electronics. With the method according to the invention, working processes in foundry technology can be particularly advantageously optimized and protection against plagiarism can be ensured.
  • thermal insulation can, however, prevent the influence of heat on an electronic component only for a certain period of time, so that protection can only be guaranteed to a limited extent and for a limited time during the casting process.
  • Thermal insulation for such transponders is not an optimal solution, especially if the casting process takes longer either because the cast metal component is only slowly cooling down or if the cast metal component is subsequently subjected to heat treatment.
  • the present invention is based on the object of creating a method for identifying cast metal components that allows an individual cast metal component to be assigned to an electronic identification element from the original forming process and thereby protects the identification element as much as possible from thermal loads .
  • the object is achieved with the features of the invention according to claim 1.
  • the features of claim 2 represent a further implementation of the approach.
  • the subclaims relate to possible implementations of a method according to the invention.
  • the invention also refers to a metal casting and a marking kit for performing the process.
  • the invention relates to a method for producing a metal casting, in which this is individually marked, the metal casting being produced in a casting process and then subjected to a heat treatment, characterized in that an individual initial marking in or before the heat treatment is generated on the metal casting or transferred into the metal casting and that after the heat treatment on the metal casting, in particular in a recess of the metal casting, an RFID element is arranged, the identity of which is linked to the initial identifier.
  • an identification is made in the metal casting that can withstand the heat treatment without any problems.
  • This identification can, for example, be introduced into the casting mold before casting in the form of an optical embossing, so that the individual optical identification is molded onto the cast metal component.
  • an initial identification element can also be introduced into the metal casting mold, which is integrated into the metal casting component during the casting process and remains in this completely or partially and / or is removed after a heat treatment process.
  • a recess with or without undercuts can also be formed in the cast metal component, into which an initial identification element is later inserted.
  • a later used transponder element is optimally held by undercuts in the recess (identification recess).
  • the mentioned possibilities of labeling are purely mechanical, by designing a shape, or optically and do not use any electronic elements or a transponder as an initial identification element.
  • Another possibility is to bring an electronic identification element, such as an RFID element, into the metal casting mold and to integrate this into the metal casting component during the casting process.
  • the electronic element can be added to the metal casting component can be removed so that the heat treatment can be carried out without endangering the marking element. It can be provided that a molded identification remains in the cast metal component, which allows or facilitates the reinsertion of the electronic identification element or the insertion of a new electronic identification element / RFID element in the correct cast metal component after the heat treatment process.
  • an initial identifier is introduced into the cast metal component or produced in it and that, after the heat treatment process, an electronic identification element / RFID element is introduced into the cast metal part using or with the aid of the initial identifier associated with the initial identifier.
  • the information about the cast metal component for example parameters of the manufacturing process, can be traced back by means of the RFID element using the identification that is later available in the finished product.
  • a further embodiment of the invention can consist in that the metal casting is provided with an identification, an individual initial identification being arranged in the casting mold, which is transferred to the metal casting during the casting process, and that after the casting process in a recess of the metal casting an RFID element is arranged, whose identity is linked to the initial identifier.
  • This process can be used regardless of whether or not there is a heat treatment after the actual casting process.
  • An optical shaping of the metal casting or a mechanical marking element carrying an optical coding can preferably be provided as individual initial marking.
  • Such initial identification elements are insensitive to the heat effects of the metal casting process and any subsequent heat treatment process.
  • the object can also be achieved by a method for producing a metal casting, in which this is individually identified by an initial identification takes place by recording and storing an individual microstructure or an individual color distribution on the surface of the metal casting, this initial identification being an RFID transponder connected to the metal casting at a later point in time via an external or internal RFID database or storage device is assigned.
  • a technology for marking-free initial marking and / or identification is used beforehand for the assignment of an RFID transponder to be linked to the metal casting at a later point in time.
  • the individually pronounced microstructure of component surfaces is used to ensure that their random features that individualize the component and thus characterize the component, such as microstructures, color textures or imperfections, identify the associated component in a unique way - comparable to a fingerprint.
  • a large number of measuring points and redundant data acquisition enable reliable identification of disturbances such as contamination or scratches.
  • a concrete implementation of this technology is the "Track & Trace Fingerprint System" from Fraunhofer IPM. The advantage of this variant is that no separate identification element is required for the initial identification.
  • An external appearance of the cast metal body, which forms an initial identification, can be recorded using an imaging method, e.g. optical image acquisition, infrared or X-ray recording, or a surface scanning method and converted into a number of recognition parameters that are later assigned to a transponder in a database , casting surface generated by casting with its individual characteristic microstructure can be used as well as a defined area of the casting surface can be intentionally changed in order to generate an individual microstructure, for example by designing the casting manufacturing process to deliberate n, targeted generation of flow fronts, turbulence, outgassing, voids and similar characteristics, or after casting by scratching, sand / shot peening, notching, laser structuring, chemical etching, coating of the metal casting, etc.
  • the position for this microstructure on the metal casting can be on the contouring Be selected surface, as well as specifically in an area specially produced for the identification, preferably the recess for the RFID transponder to be added later.
  • an electronic identification element for example an RFID identification element
  • an electronic identification element can be arranged on the metal casting, for example attached to it or in a Recess of the metal casting are used.
  • a recess can be provided in the metal casting during the primary molding process, for example, or this can be molded by a placeholder that is arranged in the casting mold, or this can be molded by pouring in a casting that is later actively removed or passive through e.g. thermal effect is resolved.
  • the placeholder can either itself contain an optical identification that is molded on the metal casting, or the placeholder itself can contain an optical identification that is connected to the metal casting through the casting process, for example in the form of an identification plate.
  • This type of identification allows, in a subsequent step, the linking of the identity of an RFID identification element that is later connected to the metal casting with the identity that was given to the metal casting from the original forming process through the initial identification.
  • One embodiment of the invention can consist in that, during the casting process, an initial identification element is produced as a replica of an element connected to the casting mold in the metal casting and / or an initial identification element in the form of a separate component arranged in the casting mold is separated from the casting mold and is received in the metal casting.
  • the initial identification element can thus consist of information that the metal casting itself carries through an impression, or in an element that carries an identification and is connected to the metal casting. Both types of markings can already be attached to the metal casting by suitable preparation of the casting mold.
  • the initial Labeling can also be carried out using a label-free identification system.
  • an element to be molded or an initial identification element is arranged in the casting mold in such a way that the molding of the element to be molded or the inclusion of the initial identification element takes place in an identification recess of the metal casting that is open towards the surface of the metal casting .
  • an identification recess is also produced in the cast metal part, which can later be used, for example, to receive an RFID element.
  • an RFID identification element is connected to the metal casting, which is linked to the initial identification element.
  • an initial identification element is provided in the casting mold, which is at least partially cast into the metal casting during the casting process.
  • the initial identification element is completely or partially removed from the identification recess of the metal casting and that an RFID identification element which is linked to the initial identification element is connected to the metal casting, in particular in the Characteristic drawing recess is arranged.
  • an RFID identification element introduced later can be linked to the identity of the cast metal part without any problems.
  • the RFID identification element can be suitably programmed, for example, or the initial identification can be stored in the RFID element.
  • a metal casting can have an identification recess in which both an initial identification element and an RFID element are arranged.
  • the initial identification element will not need its own space, for example if it consists of an impression of an optical identification in the casting process or if the initial identification element is completely or partially removed from the metal casting after the casting process and only a small part with the marking remains in or on the metal casting.
  • the initial identification element when the RFID element is assembled with the metal casting, the initial identification element is not removed, although it is useful to link the initial identification element to the RFID element in the memory of the RFID element and / or in a database to enable the identification of the initial identification element with the individual RFID element without destroying or dismantling the cast metal part or from a greater distance from the cast metal part without inspection.
  • Another embodiment of the invention relates to an identification kit for a metal casting with an initial identification element and an RFID identification element, which are detachably connected to one another, the identity of the initial identification element in the RFID identification element and / or in a database is stored and in particular the outer shape of the initial identification element corresponds to the shape of a housing of the RFID identification element, so that after the casting process, in particular during the heat treatment process or after the heat treatment process, the initial identification element from a recess that molds this Metal casting is removable and the RFID tag in the same recess can be used.
  • Such an identification kit allows it to be used in a metal casting mold, for example, and the complete identification kit can be connected to the metal casting in the Urformpro process.
  • the RFID identification element should be provided with a thermal insulation device or layer to protect it from the influence of heat during the casting process.
  • the RFID identification element can be separated from the initial identification element before a heat treatment, wherein a link between the two elements can already be represented in the RFID element, for example in a memory of the RFID element. This link can also be established when the identification kit is manufactured and stored in the RFID element or in an external database.
  • the initial identification element can then be removed from the metal casting and / or the RFID identification element can be inserted, or it can also be provided that the initial identification element is designed so that it becomes necessary during a longer heat treatment of the metal casting can be resolved or specifically resolved and thus provides space for the RFID identification element through its resolution.
  • the initial identification element can be received in the cast metal part during the casting process in such a way that an identification recess is created on the cast metal part, which is shaped to accommodate the RFID identification element.
  • the identification kit can be shaped so that the initial identification element and the RFID identification element connected to it each have the same shape. The identification recess created by the initial identification element on the cast metal part is thus shaped appropriately to accommodate the RFID identification element.
  • FIG. 1 is a systematic schematic representation of the various NEN embodiments of the method according to the invention
  • FIG. 6 shows a configuration in which an optically recognizable, mechanically designed initial identification element is combined with an RFID module
  • Fig. 8 in cross section an RFID inserted into a metal casting
  • FIG. 9 shows an RFID element inserted in a metal casting according to FIG.
  • the production process of a metal casting is shown schematically in FIG. 1, the process beginning at the top in the figure and progressing downward in accordance with the production process. Accordingly, 1 indicates the start of the production of a metal casting.
  • the dashed line 2 indicates the time of the actual casting process, ie the casting, the filling of the casting mold.
  • the dashed line 3 denotes the point in time of a potentially occurring heat treatment at which the melting temperature is usually not reached, but the duration of which can be significantly longer than the period between the pouring of the metal melt into a casting mold and the solidification of the metal.
  • an RFID element is in or on the metal casting while it is subjected to a heat treatment 3, since RFID elements can only be protected from the influence of high temperatures, for example the melting temperature of the casting material, for a limited time, for example Duration of a casting process.
  • the cast component is first identified without any markings via an individual microstructure or color texture.
  • the microstructure or color texture on the casting surface can be the natural surface texture that is generated during casting. In particular flow fronts brought about by casting technology,
  • Turbulence, outgassing, voids, etc. leave behind individual surface features.
  • the intensity of the microstructure can be artificially enhanced, e.g. B. scratching, sandblasting / shot blasting, notching, laser structuring, chemical etching, coating, etc.
  • the identification is carried out by a detection method by using, for example, an imaging method using a camera or a scanner in the optical, infrared, ultraviolet range, ultrasound or X-ray radiation. Another possibility is a mechanical, capacitive or inductive scanning method. Individual identification parameters can be derived from the recognized pattern. This marker-free identification of the metal casting is assigned to an RFID transponder connected to the metal casting at a later point in time via an external or a transponder-internal database or storage device.
  • the casting mold is designed in such a way that a depression or recess is created in the metal casting.
  • the metal casting and the recess / recess are thereby not provided with an initial marking during the casting process.
  • an initial marking attached to the metal casting after the casting for example by embossing, laser, printing, punching or by inserting an initial marking element, for example in the form of a plate. In principle, this can be done before or after the heat treatment.
  • Fung / recess a marker-free identification by recording an individual microstructure or color texture in the recess / recess.
  • the microstructure or color texture on the casting surface can also in this case, for example, either have been produced passively directly by the casting process, or have been brought about intentionally by casting (e.g. through the generation of flow fronts,
  • This marker-free identification of the metal casting is assigned to an RFID transponder connected to the metal casting at a later point in time via an external or a transponder-internal database.
  • the initial process step 5 of the third process variant consists in inserting an initial identification element into the metal casting mold as a placeholder, which is transferred into the metal casting element during the casting.
  • a placeholder has a visually recognizable marking that can be read on the metal casting.
  • the inserted placeholder can be read in a later method step 8 before an RFID element is inserted.
  • the placeholder can then be removed from the metal casting or removed.
  • the initial identification of the metal casting can be recorded in step 8 as well as in step 4 'and the metal casting can be identified as a result.
  • An initial method step 6 of the fourth method variant can provide that a placeholder is inserted into the metal casting mold, which is detachably connected to an identification plate which can be read out optically.
  • the placeholder without the identification plate can be removed from the metal casting or removed, in particular during or after the heat treatment of the metal casting.
  • the initial identification element in the form of the identification plate can then be read, and the identity of the initial identification element can be linked in a subsequent step with an RFID element to be inserted in the space of the metal casting that is kept free by the placeholder.
  • a placeholder with an RFID element is inserted into the casting mold, which is poured into the metal casting in the subsequent casting.
  • the pouring takes place in such a way that after the pouring the RFID element can be removed before the heat treatment. This is shown in method step 9.
  • the RFID element can be protected by suitable thermal insulation during the casting process.
  • an RFID element is inserted into a recess in the cast metal part and fastened there, for example by casting or gluing, screwing, crimping, snapping or other methods.
  • an identification recess on the metal casting can be used which has already received an initial identification element during casting, for example an RFID element, in particular the RFID element that has been removed in the meantime and reinserted in method step 10.
  • the identification recess can then be closed with the RFID element, in particular by filling and / or painting over / painting, coating or powder coating.
  • Figure 2 shows schematically in a longitudinal section a casting mold 12, which can consist of a metal or a ceramic, sand or gypsum or a combination of two or more of these materials, for example, with a sprue system IS through which molten metal is introduced into the casting mold 12 becomes.
  • a molding element 14 is arranged, which is firmly connected to the casting mold 12 and, when it is poured into the metal casting, leaves a recess which forms an identification recess.
  • a cast metal casting 15 is shown by way of example with a corresponding identification recess 16, which can be created as a recess by a molding element 14 in the casting mold.
  • an optical coding can be introduced that identifies the metal casting 15 individually.
  • a placeholder 17 can also be placed in the identification recess
  • the metal casting 15 prepared in this way can then be subjected to an intensive and long-lasting heat treatment, which the placeholder or the marking or a marking plate can withstand, at least with regard to the legibility of the marking.
  • FIG. 4 three placeholders are shown, each of which has different optical markings on its surface and is each poured into a metal cast body or introduced into a marker recess after the casting.
  • These placeholders are designed so that they can withstand heat treatment of the cast metal part and are still legible afterwards. It can also be provided that these placeholders transfer their identification to the cast part during the casting process. In the heat treatment, they ideally destroy / dissolve so that a recess remains for the later recording of an RFID.
  • the coding of the individual placeholders does not have to be absolutely unique, but can be given its uniqueness together with a batch designation of the metal casting, so that each metal casting is given an individual identification through a combination of the batch designation with the coding of the placeholders.
  • the placeholders 18, 19, 20 can also be designed and inserted into the identification recess 16 of a metal casting 15 that they leave behind optical codes in the identification recesses by embossing or other molding mechanisms when the placeholders are removed from the metal casting. If the placeholders remain in the metal casting, they are removed immediately before an RFID element is inserted. The linking of the RFID elements used with the placeholders or with the metal castings identified by the placeholders can then take place. Otherwise, the coding left behind by the placeholders 18, 19, 20 in or on the identification recesses 16 of metal castings can be read out and linked to the identity of the RFID elements used in each case.
  • a placeholder 21 is shown in FIG. 5, which has a handling element 21a to which an identification plate 21b is detachably connected. If the placeholder 21 is inserted into an identification recess 16 of a metal casting 15 or inserted into a casting mold before the casting and transferred through the casting into the metal casting, the element 21a can be removed from the identification recess so that the identification plate 21b is easily readable. Then an RFID element can be inserted and linked to the identity of the identification plate 21b. In the figure it can be seen that the identification plate is connected to the element 21a. This can be implemented, for example, by gluing or clamping.
  • Figure 6 shows in a perspective view an initial identification element 22, which consists of two mirror-inverted assembled parts 22a, 22b.
  • Part 22b is a mechanical, optically recognizable initial Identifying element is formed which, for example, carries an identification plate with an optical coding on its underside 22c or which leaves a corresponding optical coding behind by casting an embossing on its underside 22c in the metal casting.
  • the initial identification element 22 can be inserted into the casting mold in such a way that the part 22b is introduced into an identification recess of the metal casting or forms a identification recess through the impression.
  • the part 22a can be received in the casting mold and this can be removed after the casting together with the metal casting and the part 22b.
  • the upper part 22a can be broken off from the part 22b.
  • the metal casting can then be subjected to a heat treatment which does not damage the element 22b.
  • the element 22b can then be removed from the identification recess and the element 22a can be used instead.
  • the elements 22a, 22b preferably have identical external shapes.
  • the outer shapes can have undercuts 22d, which effect a firm holding in a marking recess of a metal casting.
  • the link between the RFID element 22e, which is located in the element 22a, with the coding from the underside of the element 22b can be stored / deposited in the RFID element 22e from the start and / or be stored in an external database.
  • the production and usage history of the metal casting that has been individually identified with the initial identification element 22 can thus be called up at any time in the database.
  • FIG 7 an arrangement is shown, which has a camera, a scanner or a comparable optical readout device 23 and a communication device 24 for reading out RFID identities and also a storage device 25 with a database, which by means of communication interfaces with both the device 23 and is connected to the device 24.
  • the initial identification is read out on a cast metal part 15 and included an RFID element 22e used, for example, after a heat treatment, or its coding linked in the database 25.
  • FIG. 8 in a partial cross-section of a metal casting 15, a marking recess is shown, on the bottom of which either an optical coding is attached by embossing, printing, stamping or other methods or on the bottom of which a marking plate 21b is arranged, which carries a coding.
  • an RFID element 22e is introduced into the identification recess.
  • the RFID element can either end flush with the surface 26 of the cast metal part or protrude, or it can stand back behind this and is then covered by a coating and / or varnish 27 that compensates for any unevenness.
  • a coating 27, for example also designed as a powder coating, can also be advantageous if the RFID element is flush with the surface 26 of the metal casting in order to provide a smooth surface of the metal casting and to protect the RFID element from harmful influences. If the RFID element is covered in this way, it is difficult to see even for counterfeiters, for example, which can provide additional protection against plagiarism.
  • a two-stage identification process makes it possible to identify cast metal parts with RFID elements / transponders, the manufacturing processes of which have process temperatures that do not allow the use of RFID elements during the casting process or subsequent heat treatment.
  • the RFID elements can also be used after potential heat treatment, so that the requirements for temperature stability on the RFID elements are also low. This means that inexpensive transponders can be used.
  • a placeholder with an identification plate for identifying a metal casting is very inexpensive to manufacture, since both the placeholder as well as the identification plate can be produced easily and inexpensively by casting processes (placeholders) and, for example, embossing processes (identification plates). Due to the recess formed by the placeholder in the metal casting, the RFID transponder can be used without any problems in a process step following the heat treatment and integrated into the metal casting. Subsequent filling and / or painting allows the RFID transponder to identify the cast component without being visually recognizable from the outside.
  • the RFID transponders can be assigned unique identifications (unique IDs that are unique worldwide), which can only be forged with great effort.
  • An additional advantage can be that an initial marking remains in a marking recess below the RFID element, so that the metal casting can still be identified even if the RFID element fails.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Powder Metallurgy (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

La présente invention concerne un procédé de fabrication d'une pièce coulée en métal (15), selon lequel cette dernière est marquée individuellement. La pièce coulée en métal (15) est fabriquée dans un processus de coulée (2) et est soumise par la suite à un traitement thermique (3). Un marquage continu d'une telle pièce coulée en métal depuis le procédé de formage jusqu'à l'utilisation peut également être rendu possible par le biais d'une éventuelle étape de traitement thermique en ce que, avant le traitement thermique (3), un marquage initial (18, 19, 20, 21b, 22) individuel est généré dans la pièce coulée en métal ou transmis dans la pièce coulée en métal (15) et en ce que, après le traitement thermique (3), un élément RFID (22e), dont l'identité est reliée au marquage initial (18, 19, 20, 21b, 22), est disposé au niveau de la pièce coulée en métal, en particulier dans un évidement (16) de la pièce coulée en métal.
EP20707628.2A 2019-02-28 2020-02-27 Procédé de marquage de composants coulés en métal au moyen d'un transpondeur électronique Withdrawn EP3931752A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019202750.4A DE102019202750B3 (de) 2019-02-28 2019-02-28 Verfahren zur Kennzeichnung von Metallgussbauteilen mittels elektronischer Transponder
PCT/EP2020/055214 WO2020174075A1 (fr) 2019-02-28 2020-02-27 Procédé de marquage de composants coulés en métal au moyen d'un transpondeur électronique

Publications (1)

Publication Number Publication Date
EP3931752A1 true EP3931752A1 (fr) 2022-01-05

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EP (1) EP3931752A1 (fr)
DE (1) DE102019202750B3 (fr)
WO (1) WO2020174075A1 (fr)

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DE102021209878A1 (de) 2021-02-15 2022-08-18 Sms Group Gmbh Verfahren zur Rückverfolgung von Schmiedeteilen über den gesamten Herstellungsprozess, insbesondere vom Schmiedeprozess, über Sandstrahlen und Warmbehandlung bis zur mechanischen Bearbeitung

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DE102007035144A1 (de) * 2007-07-25 2009-01-29 Ralf Bux Vorrichtung und Verfahren zur Individualisierung bzw. Kennung eines Werkstücks
PL2196272T3 (pl) * 2008-12-03 2012-11-30 Nemak Linz Gmbh Odlew i sposób wytwarzania odlewu
DE202008018295U1 (de) * 2008-12-03 2012-08-06 Nemak Linz Gmbh Gusskörper
DE102015102308A1 (de) * 2015-02-18 2016-08-18 Nemak, S.A.B. De C.V. Verfahren zum Kennzeichnen eines Gussteils
DE102015203797A1 (de) * 2015-03-03 2016-09-08 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Gusskörper, Verfahren zu seiner Herstellung sowie Gießwerkzeug zur Herstellung des Gusskörpers

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