EP3049200A1 - Procédé de forgeage à chaud d'un corps creux sans soudure en matériau difficile à déformer, en particulier en acier - Google Patents

Procédé de forgeage à chaud d'un corps creux sans soudure en matériau difficile à déformer, en particulier en acier

Info

Publication number
EP3049200A1
EP3049200A1 EP14772322.5A EP14772322A EP3049200A1 EP 3049200 A1 EP3049200 A1 EP 3049200A1 EP 14772322 A EP14772322 A EP 14772322A EP 3049200 A1 EP3049200 A1 EP 3049200A1
Authority
EP
European Patent Office
Prior art keywords
forging
mandrel
hollow block
hollow body
hollow
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP14772322.5A
Other languages
German (de)
English (en)
Other versions
EP3049200B1 (fr
Inventor
Rolf Kümmerling
Antonio Sergio Medeiros Fonseca
Thomas Schlothane
Robert Koppensteiner
Rupert Wieser
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.)
GFM GmbH
Vallourec Deutschland GmbH
Original Assignee
GFM GmbH
Vallourec Deutschland GmbH
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 GFM GmbH, Vallourec Deutschland GmbH filed Critical GFM GmbH
Publication of EP3049200A1 publication Critical patent/EP3049200A1/fr
Application granted granted Critical
Publication of EP3049200B1 publication Critical patent/EP3049200B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J7/00—Hammers; Forging machines with hammers or die jaws acting by impact
    • B21J7/02—Special design or construction
    • B21J7/14—Forging machines working with several hammers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/06—Making machine elements axles or shafts
    • B21K1/063—Making machine elements axles or shafts hollow
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/13—Modifying the physical properties of iron or steel by deformation by hot working

Definitions

  • deformable material in particular steel
  • the invention relates to a method for hot forging a seamless
  • Hollow body made of difficult to deform material in particular of steel, according to the preamble of claim 1.
  • the invention relates to a produced by hot forging tube made of a difficult to deform material.
  • Characteristic of the production of seamless tubes from a heated block by hot rolling are the three steps punching - stretching - reducing rolls.
  • Reduzierwalzen is replaced by a forming step in the form of a
  • Radialschmiedereaes using an inserted into the hollow block inner tool and at least two on the lateral surface of the hollow block acting forging jaws a forging machine, wherein the hollow block clocked in the phase of the idle stroke of the forging jaws is rotated and moved axially.
  • the rotation and the axial feed of the hollow block can take place simultaneously or with a time offset.
  • tubes with a circumference of more than 500 mm and lengths of more than 4000 mm can be produced very advantageously.
  • the method is not optimally designed for the forging of difficult-to-form materials.
  • metallic materials, especially steels understood that at the forming temperature, ie the forging temperature, a yield point of more than 150 MPa determined at 0.3 logarithmic strain and a
  • these are steels with chromium contents of more than 5.0% by weight, duplex steels, nickel-base alloys or refractory metals.
  • Usual forging temperatures are depending on the material to be forged at least 70% of the respective melting temperature of the material.
  • the forging temperature of the Inconel 718 material is at least 850 ° C.
  • the forge can be a
  • Mandrel body is on a support rod, also called mandrel, attached, with the mandrel body in the phase of the idle stroke in the hollow block can be moved axially or rotated.
  • a support rod also called mandrel
  • sufficiently long service life of the forging mandrel and consistently high quality of the inner surface of the tube can not yet be ensured in materials which are difficult to form.
  • German Patent Application DE 10 2012 107 375 A1 already discloses a device for forging a hollow body with forging tools arranged centrally and symmetrically about a forging axis.
  • a rotary drive can be controlled via a control device as a function of the rotational position of the forging mandrel relative to the forging tools.
  • the object of the invention is an improved method for producing a seamless hot-finished metallic hollow body by hot forging
  • this object is achieved by a method for hot forging a seamless hollow body made of difficult-to-form material, in particular steel, having a yield point at forming temperature of more than 150 MPa determined at 0.3 logarithmic strain and a
  • Forming rate of 10 / s by means of hot forging which is characterized in that the hot forging is carried out with a forming degree in the forged section with ln (A0 / A1) of less than 1, 5 and a process-related strain rate of less than 5 / s, A0 as a local cross-sectional area of a hollow body to be forged in m 2 and A1 as a local cross-sectional area of the finished hollow body in m 2 and the
  • Deformation rate as maximum speed of the hollow body to be forged in m / s based on the outer diameter of the finished forged hollow body in m are defined.
  • the service life of the forging mandrel can advantageously be improved by using a forging mandrel made of a material having a strength of at least 700 MPa at 500 ° C.
  • hot forging is characterized by the fact that the hollow body located at the forging temperature has a forging mandrel attached to a mandrel as an internal tool, by means of a forging axis arranged symmetrically and drivable in the radial strokes acting on the shell surface of the hollow body and the forging mandrel
  • Schmiedebacken a forging machine is formed into a tube with a tube circumference of on average at least 500 mm and a length of at least 4000 mm, the hollow body clocked in the phase of the idle stroke of the
  • the proposed method has the advantage that now hollow body made of difficult to transform materials with optimum inner surface can be produced economically, at the same time significantly increased service life of the forging mandrel.
  • the proposed forging process is particularly effective and qualitatively favorable if, depending on the pipe diameter to be forged, two, four or more forging jaws are used, which act in a plane synchronously on the lateral surface of the hollow block.
  • the inserted as an internal tool in the hollow block forging mandrel can in principle be arranged freely movable in the hollow block. For better distribution, in particular the thermal load, but it is advantageous to rotate the forging mandrel in the phases of idle strokes and / or to move in the same direction or opposite to the axial feed of the hollow block.
  • the forging mandrel is rotated by means of a controller or a controller and / or moved in the axial direction, because it is then possible to specifically homogenize the thermal and mechanical load of the forging mandrel.
  • the axial mandrel speed is either constant or variable.
  • the rotation of the forging mandrel should be so large that in the following forging stroke the loads act on a region of the forging mandrel, which were without or with little impact in the previous forging.
  • the direction of rotation of the forging mandrel can be selected equal to or different from the direction of rotation of the hollow block.
  • Forging mandrel and hollow block are larger and thus heat welding of the workpiece with the forging mandrel can be better prevented.
  • the forging mandrel may additionally be provided with a coating consisting of a ceramic, for example Tungsten carbide, and having a layer thickness of at least 0.02 mm and a maximum of 0.2 mm has a surface hardness of at least 900 HV0.1 at room temperature.
  • a coating consisting of a ceramic, for example Tungsten carbide, and having a layer thickness of at least 0.02 mm and a maximum of 0.2 mm has a surface hardness of at least 900 HV0.1 at room temperature.
  • the coating according to the invention relates to a tribologically acting layer, which by its thickness in the area mentioned both the necessary
  • abrasion resistance also achieves heat welding of the hollow block on
  • the release agent and / or lubricant may be applied to the inside of the hollow block before the start of the radial forging process and / or the
  • Forging mandrel is lubricated at least in the area of the forging jaws acting on it before or during forging.
  • Inner surface of the hollow block amount of not less than 40 g / m 2 .
  • Direction of rotation of the forging mandrel and the hollow block of the forging mandrel a twice as high rotation step between the Umformh Claus is advantageous than uneven direction of rotation. This is because the contact surface of the forging jaw and thus the contact surface on the mandrel is always slightly asymmetrical to the longitudinal axis of the forging jaw and thus the lubricant is more easily pressed into the incoming zone and stripped from the mandrel. This is at the same direction of rotation significantly larger (about twice as large) rotation step of the mandrel necessary to bring the release agent and / or lubricant in the forming zone.
  • Forging mandrel and DSH is the turning step in angular degree of the hollow block. It has been found that the width of the contact zone of the forging mandrel is significantly lower than that of the forge. Falling below the above limit leads to investigations on massive thermal stresses on the mandrel, which usually lead to plugs and thus to a failure of the process.
  • the forging mandrel is thermally stressed by two influences before contact during forging.
  • the radiation load through the warm workpiece and on the other hand by the introduced in the contact zone with the forging mandrel amount of heat.
  • the thermal loads can be adjusted by the variability of the mandrel speed such that equalization of the introduced heat sufficiently reduces the maximum temperature of the mandrel surface to prevent plastic deformation or premature wear of the forge mandrel.
  • Hollow blocks in the forging machine in m / s and GA discharge speed of the hollow block into the forging machine in m / s.
  • the forging mandrel can be solid or designed as a hollow body.
  • Forging is cooled from the outside to further reduce the thermal load.
  • the wall thickness should be at least 9% for an internal cooling and at least 15% of the outside diameter of the forging mandrel for external cooling.
  • the forging mandrel should have a length calculated as follows:
  • forging a forging mandrel which has a conicity of at least 1: 1000, with the larger diameter at the mandril end of the Forging mandrel. Compliance with the specified conicity is necessary because the forged workpiece cools behind the forming zone such that a
  • a further advantageous embodiment of the invention therefore provides that in terms of compliance with the tolerance requirements for inner or outer diameter and wall thickness of the hollow body, which by the conicity of
  • Forging mandrel diameter conditional geometric deviation of the hollow body during forging is compensated by adjusting the stroke of the forging hammers.
  • Diameter between forging mandrel and hollow block in m and HL represent the length of the hollow block in m.
  • the inner diameter and the inner contour over the length of the forged hollow body are determined essentially by the geometry of the inner tool, preferably in the form of a cylindrical dome.
  • Forming of the forging tools and / or a special control of the strokes of the forging hammers and the axial movements of the forging mandrel in addition to outside and inside round tubes also produce axisymmetric tubes, for example, as rectangular or square hollow body, even the used hollow block may have a corresponding geometry, so that the necessary forming work during forging of the finished part can be reduced to a minimum. Furthermore, the cross sections of both the hollow block used and the forged hollow body can change over the length.
  • a diameter-graduated dome is conceivable with which, for example, stepped or / and conical cylinders with thickened ends can be produced over the length.
  • stepped or / and conical cylinders with thickened ends can be produced over the length.
  • stepped or / and conical cylinders with thickened ends can be produced over the length.
  • several stepped cylinder from a hollow block would be possible.
  • the hollow block is not formed as a hollow body open on both sides, but on one side has a bottom. This results in comparison to a hollow body open on both sides to a performance improvement in forging and is also advantageous if the finished part should also have a bottom.
  • the finished forged hollow body is after the usual adjustment steps, such as cutting to length, visual inspection, marking, etc. either immediately deliverable or is still subjected to a heat treatment and / or non-destructive testing.
  • the heat treatment may be normalizing or tempering. Depending on the straightness requirement, straightening is required.
  • over-sanding or other suitable chip removal of the outer surface may be necessary to eliminate the small bumps caused by the forging process.
  • Figure 1 shows the inventive method in a schematic representation
  • FIG. 1 shows the method according to the invention in a schematic representation in a longitudinal section with a hollow block 1 to be forged having an initial cross-sectional area AO, which enters the forging machine from the left and leaves the forging machine on the right as a ready-to-use tube 2 with a local cross-sectional area A1.
  • the forging takes place with a degree of deformation in the forging section in the forged section with ln (A0 / A1) of less than 1/5 and a process-related rate of deformation of less than 5 / s, the rate of deformation being the maximum tool speed in m / s relative to the outer diameter of the finished forged hollow body is defined in m.
  • the forging mandrel 4 is made of a material having a strength of at least 700 MPa at 500 ° C and is held in place by a support rod 5, but may alternatively be axially moved back and forth during the forging process and / or rotated.
  • the direction of rotation of the forging mandrel can be in the direction of rotation of the hollow block or opposite.
  • the forging mandrel 4 is designed as a solid body with a taper of more than 1: 1000 and is cooled only from the outside.
  • Each forging jaw 3 to 3 "' has in longitudinal section a predominantly conically shaped inlet section 8 and a subsequent smoothing section 9.
  • the inlet section 8 can also be slightly convexly curved.
  • all the forging jaws 3 to 3 "' have a concave curvature, as a rule, the curvature is a circular arc whose radius is greater than the current radius of the part to be forged.
  • the movement arrows 10 shown in FIGS. 1 and 2 are intended to illustrate the radial stroke of the respective forging jaw 3 to 3 "'.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Forging (AREA)

Abstract

L'invention concerne un procédé de forgeage à chaud d'un corps creux sans soudure en matériau difficile à déformer. Selon l'invention, le forgeage à chaud est effectué avec un taux de déformation relatif à la section transversale à déformer dans la partie forgée avec ln (A0/A1) inférieur à 1,5 et une vitesse de déformation relative au procédé inférieure à 5/s. A0 est défini comme l'aire de section transversale locale d'un corps creux à forger en m2 et A1 comme l'aire de section transversale locale du corps creux fini en m2 et la vitesse de déformation est définie comme la vitesse maximale du corps creux à forger en m/s par rapport au diamètre extérieur du corps creux forgé fini en m.
EP14772322.5A 2013-09-25 2014-09-23 Procédé de forgeage à chaud d'un corps creux sans soudure en matériau difficile à déformer Active EP3049200B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201310219310 DE102013219310A1 (de) 2013-09-25 2013-09-25 Verfahren zum Warmschmieden eines nahtlosen Hohlkörpers aus schwer umformbarem Werkstoff, insbesondere aus Stahl
PCT/EP2014/070208 WO2015044120A1 (fr) 2013-09-25 2014-09-23 Procédé de forgeage à chaud d'un corps creux sans soudure en matériau difficile à déformer, en particulier en acier

Publications (2)

Publication Number Publication Date
EP3049200A1 true EP3049200A1 (fr) 2016-08-03
EP3049200B1 EP3049200B1 (fr) 2024-04-10

Family

ID=51619162

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14772322.5A Active EP3049200B1 (fr) 2013-09-25 2014-09-23 Procédé de forgeage à chaud d'un corps creux sans soudure en matériau difficile à déformer

Country Status (5)

Country Link
EP (1) EP3049200B1 (fr)
CN (1) CN105592954B (fr)
BR (1) BR112016003146B1 (fr)
DE (1) DE102013219310A1 (fr)
WO (1) WO2015044120A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9982706B2 (en) * 2015-07-31 2018-05-29 Hyundai Motor Company Method of manufacturing light rotor shaft for eco-friendly vehicles
CN106734839B (zh) * 2017-01-04 2018-10-23 上海理工大学 一种预防变截面变壁厚中间轴旋锻过程中出现缺陷的方法
CN108620520A (zh) * 2017-03-24 2018-10-09 周继礼 锻造白口铸铁缸套
AT523160B1 (de) * 2019-12-23 2021-06-15 Gfm Gmbh Verfahren zum Bearbeiten eines im Querschnitt runden, metallischen Gießstrangs durch eine Querschnittsreduktion im Enderstarrungsbereich
CN111687237A (zh) * 2020-06-18 2020-09-22 成都先进金属材料产业技术研究院有限公司 厚壁毛细钛合金无缝管的冷轧方法
CN113477857B (zh) * 2021-04-06 2022-11-08 江苏太平洋精锻科技股份有限公司 一种空心电机轴的成形加工方法
DE102021203374A1 (de) 2021-04-06 2022-10-06 Magna powertrain gmbh & co kg Verfahren zur Herstellung einer Polygonwelle
CN113059330B (zh) * 2021-05-08 2022-04-29 中寰(山东)重工机械有限公司 一种大口径壳体一体化成形方法
DE102022208463A1 (de) 2022-08-15 2024-02-15 Sms Group Gmbh Verfahren zur automatischen Stichplanberechnung beim Schmieden von abgesetzten Wellen
DE102022208461A1 (de) 2022-08-15 2024-02-15 Sms Group Gmbh Verfahren zur automatischen Stichplanberechnung beim Radialschmieden I
DE102022208462A1 (de) 2022-08-15 2024-02-15 Sms Group Gmbh Verfahren zur automatischen Stichplanberechnung beim Radialschmieden II
CN116689681B (zh) * 2023-06-01 2023-12-15 江苏龙城精锻集团有限公司 一种新能源汽车驱动电机空心轴旋锻设备及工艺

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005027259A1 (de) * 2005-06-13 2006-12-14 Daimlerchrysler Ag Halbwarmumformung von Metalllegierungen bei hoher Dehnrate

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004122168A (ja) * 2002-10-01 2004-04-22 Daido Steel Co Ltd 中空鍛造品の製造方法および製造装置
CA2536404C (fr) * 2003-10-20 2011-08-16 Jfe Steel Corporation Tuyau en acier sans soudure extensible pour utilisation dans un puits de petrole et methode de fabrication
CA2572156C (fr) * 2004-06-30 2013-10-29 Sumitomo Metal Industries, Ltd. Filiere en alliage fe-ni et methode pour la produire
DE102005052178B4 (de) 2004-10-25 2008-06-19 V&M Deutschland Gmbh Verfahren zum Herstellen eines nahtlos warmgefertigten Stahlrohres
DE102007032804B3 (de) 2007-07-10 2008-09-04 V&M Deutschland Gmbh Schmiededorn zum Warmschmieden rohrförmiger Werkstücke aus Metall
BRPI0704944A8 (pt) * 2007-11-30 2017-08-15 V & M Do Brasil S/A Eixo forjado de tubo sem costura para veículos ferroviários e processo de fabricação de eixo forjado de tubo sem costura para veículos ferroviários
AT511745B1 (de) * 2011-08-12 2014-09-15 Gfm Gmbh Vorrichtung zum schmieden eines hohlkörpers
CN102632175A (zh) * 2012-04-24 2012-08-15 江苏诚德钢管股份有限公司 一种铸态镁合金管材的径向锻造工艺

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005027259A1 (de) * 2005-06-13 2006-12-14 Daimlerchrysler Ag Halbwarmumformung von Metalllegierungen bei hoher Dehnrate

Also Published As

Publication number Publication date
BR112016003146A2 (pt) 2017-08-01
CN105592954B (zh) 2019-03-22
EP3049200B1 (fr) 2024-04-10
WO2015044120A1 (fr) 2015-04-02
CN105592954A (zh) 2016-05-18
DE102013219310A1 (de) 2015-03-26
BR112016003146B1 (pt) 2021-07-13

Similar Documents

Publication Publication Date Title
EP3049200B1 (fr) Procédé de forgeage à chaud d'un corps creux sans soudure en matériau difficile à déformer
EP1814679B1 (fr) Procede pour produire un tube d'acier sans soudure usine a chaud
EP3368232B1 (fr) Procédé et dispositif de fabrication d'une soupape à refroidissement intérieur pour des moteurs à combustion
EP2210682B1 (fr) Méthode et appareil de fluotournage
DE102012005106B4 (de) Verfahren zur Herstellung einer Hohlwelle und Vorrichtung hierfür
DE69729488T2 (de) Stopfen und dornstange zum walzen eines nahtlosen stahlrohres und verfahren zur herstellung eines nahtlosen stahlrohres
WO2020182370A1 (fr) Procédé pour produire une soupape à tige creuse pour des moteurs à combustion interne
DE10100868A1 (de) Verfahren sowie Umformmaschine und Werkzeug zum Herstellen von flanschförmigen Erzeugnissen
EP0313985B1 (fr) Procédé de fabrication d'un arbre à cames
DE1602135A1 (de) Rohrherstellung
EP2030703A1 (fr) Procédé et dispositif de laminage transversal d'arbres creux ou de pièces creuses cylindriques dégradés d'un tuyau
DE3129903A1 (de) Verfahren und vorrichtung zum herstellen von rohren mit abschnittweise wechselnden aussen- und innendurchmessern
EP0344570B1 (fr) Procédé et dispositif de fabrication d'un tube en forme d'hélice
WO2008003305A1 (fr) Procédé de production d'une pièce à symétrie de rotation et pièce ainsi obtenue
DE3401595C2 (fr)
DE10311144B3 (de) Verfahren zum Herstellen eines Rohres mit einer Innenprofilierung und Vorrichtung zur Durchführung des Verfahrens
DE10030823C2 (de) 3-Walzen-Schrägwalzgerüst
WO1999036206A1 (fr) Procede et dispositif pour produire des corps creux par laminage transversal
EP2734318B1 (fr) Cylindre pour laminoir à couronnes
DE102008056988A1 (de) Verfahren und Walzwerk zum Herstellen von nahtlosen Stahlrohren
EP1203622A2 (fr) Entraínement rotatif pour calibres de cylindres à mouvement de roulement réciproque, d'un laminoir à pas de pélerin à frois
DE3536046C2 (fr)
EP2888064B1 (fr) Procédé de formage
DE102018001712A1 (de) Vorrichtung und Verfahren zum Reibdrücken zur Erzeugung von umgeformten Bereichen, insbesondere von Flanschstrukturen, an profilförmigen Werkstücken
EP2067542A1 (fr) Procédé et laminoir destinés à fabriquer des tuyaux en acier sans soudure

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20160303

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

RIN1 Information on inventor provided before grant (corrected)

Inventor name: KOPPENSTEINER, ROBERT

Inventor name: FONSECA, ANTONIO SERGIO MEDEIROS

Inventor name: WIESER, RUPERT

Inventor name: SCHLOTHANE, THOMAS

Inventor name: KUEMMERLING, ROLF

DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20181018

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20240109

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502014016804

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN