EP4126442A1 - Procédé de fabrication d'une roue de véhicule en acier et roue de véhicule en acier ainsi fabriquée - Google Patents

Procédé de fabrication d'une roue de véhicule en acier et roue de véhicule en acier ainsi fabriquée

Info

Publication number
EP4126442A1
EP4126442A1 EP21718003.3A EP21718003A EP4126442A1 EP 4126442 A1 EP4126442 A1 EP 4126442A1 EP 21718003 A EP21718003 A EP 21718003A EP 4126442 A1 EP4126442 A1 EP 4126442A1
Authority
EP
European Patent Office
Prior art keywords
wheel
steel
vehicle wheel
steel vehicle
joining
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.)
Pending
Application number
EP21718003.3A
Other languages
German (de)
English (en)
Inventor
Marco Queller
Felix Schürmann
Achim Bandorski
Burkhard Tetzlaff
Erwin Blumensaat
Chris Schmidtke
Peter Ohse
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.)
ThyssenKrupp Steel Europe AG
Original Assignee
ThyssenKrupp Steel Europe 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 ThyssenKrupp Steel Europe AG filed Critical ThyssenKrupp Steel Europe AG
Publication of EP4126442A1 publication Critical patent/EP4126442A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/346—Working by laser beam, e.g. welding, cutting or boring in combination with welding or cutting covered by groups B23K5/00 - B23K25/00, e.g. in combination with resistance welding
    • B23K26/348—Working by laser beam, e.g. welding, cutting or boring in combination with welding or cutting covered by groups B23K5/00 - B23K25/00, e.g. in combination with resistance welding in combination with arc heating, e.g. TIG [tungsten inert gas], MIG [metal inert gas] or plasma welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/32—Bonding taking account of the properties of the material involved
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B3/00—Disc wheels, i.e. wheels with load-supporting disc body
    • B60B3/02—Disc wheels, i.e. wheels with load-supporting disc body with a single disc body integral with rim
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B3/00—Disc wheels, i.e. wheels with load-supporting disc body
    • B60B3/04—Disc wheels, i.e. wheels with load-supporting disc body with a single disc body not integral with rim, i.e. disc body and rim being manufactured independently and then permanently attached to each other in a second step, e.g. by welding
    • B60B3/041—Disc wheels, i.e. wheels with load-supporting disc body with a single disc body not integral with rim, i.e. disc body and rim being manufactured independently and then permanently attached to each other in a second step, e.g. by welding characterised by the attachment of rim to wheel disc
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/26—Making other particular articles wheels or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/006—Vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/02—Iron or ferrous alloys
    • B23K2103/04—Steel or steel alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B2310/00—Manufacturing methods
    • B60B2310/30—Manufacturing methods joining
    • B60B2310/302—Manufacturing methods joining by welding
    • B60B2310/3026—Manufacturing methods joining by welding by laser welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B2360/00—Materials; Physical forms thereof
    • B60B2360/10—Metallic materials
    • B60B2360/102—Steel
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/34—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tyres; for rims

Definitions

  • the invention relates to a method for producing a steel vehicle wheel, the method comprising the following steps: providing a first component made of steel, which corresponds to a wheel rim, and a second component made of steel, which corresponds to a wheel disc; - Thermal, cohesive joining of the first and the second component to produce an assembled steel vehicle wheel.
  • the invention also relates to a steel vehicle wheel comprising a wheel rim with a wheel disk that is thermally and cohesively joined to the wheel rim.
  • gas-shielded metal (MIG / MAG) welding is predominantly used for the thermally cohesive connection between a wheel disc and a wheel rim to produce a vehicle wheel. Due to the process, the welding speed is usually limited to less than 1.5 m / min. For example, the fatigue strength may be limited due to a strong notch effect.
  • the notch effect is not only due to the geometry of the joining zone in the transition between the wheel disk / wheel rim and the joint seam (geometric notch effect), but can also have a negative effect in the form of an influence on the structure due to the thermal effect of the joining process (metallurgical notch effect).
  • connection seam is of subordinate importance as “securing the position", since the operational stress is borne by the frictional connection between the wheel disc and the wheel rim (drop center rim, drop center wheel).
  • Fillet welds at overlap joints are unfavorable for components with fatigue stress due to the notches that appear (metallurgical and geometrical), but can hardly be avoided with conventionally manufactured steel vehicle wheels with this welding process.
  • Conventionally weldable steels with a maximum tensile strength of 700 MPa with good formability are used as base materials for wheel rims and wheel disks.
  • the invention is therefore based on the object of providing a method for producing a steel vehicle wheel, with which the aforementioned disadvantages and problems can be essentially avoided or at least substantially reduced, and to provide a corresponding steel vehicle wheel.
  • This object is achieved by a method with the features of claim 1.
  • This object is achieved by a steel vehicle wheel with the features of claim 7.
  • a laser-MSG flybridge method is used for thermal, material-locking joining.
  • the joint between the wheel rim and the wheel disk is therefore a laser-MSG-Flybrid joint.
  • the inventors have found that by using a laser MSG flybridge method for the thermal, cohesive joining of a wheel rim and a wheel disc to produce a steel vehicle wheel with a laser MSG hybrid joining connection between the wheel rim and the wheel disc, a steel vehicle wheel a high load-bearing capacity under operating loads, high connection stiffness and a reduced geometric notch in combination with a low expansion of the joint connection and heat-affected zone, so that the structural influence and the resulting metallurgical notch can be reduced.
  • the laser-MSG hybrid process combines a laser welding process with a MSG (metal shielding gas) welding process. This advantageously combines the advantages of the two individual methods.
  • a laser arrangement can be guided in the joining direction before or after an MSG arrangement.
  • the material of the component (s) with a small spot diameter is melted by means of a laser beam. Due to the high energy density, the laser beam can penetrate deeply into the material of the component (s), melt it and connect it.
  • filler material is introduced and the weld pool is enlarged due to the divergence of the arc.
  • the filler material compensates for the cross-section reduction resulting from the air gap between the components to be connected as well as the shrinkage stresses and creates a secure flank connection.
  • a laser-MSG hybrid joint connection resulting from this can have a high welding depth with high seam quality.
  • the parameters for the laser welding process and the MSG welding process can be set individually and / or independently of one another. In this way, the shape and depth of the joint seam / connection can be adapted to the component conditions in order, for example, to achieve optimal seam quality.
  • a fiber laser for example a Yb, Nd: YAG or Yb: YAG laser, can be used as the laser.
  • a gas laser for example a CO 2 laser, is also conceivable.
  • the joining speed is between 1 and 5 m / min.
  • the joining speed can in particular be increased to at least 1.3 m / min, preferably to at least 1.6 m / min, preferably to at least 1.8 m / min.
  • the power of the laser is between 3 and 10 kW.
  • the laser power can in particular be increased to at least 3.5 kW, preferably to at least 4 kW.
  • the laser spot diameter can be selected between 100 and 1500 pm.
  • the focus position of the laser can be selected between -5 and +5 mm in relation to the surface of the component.
  • the focal length of the laser welding optics can be selected between 50 and 500 mm.
  • the collimation of the laser welding optics can be selected between 50 and 500 mm.
  • the angle of the laser to the surface of the component and at right angles to the joining direction can be selected between - 45 and + 45 °. 0 ° corresponds to a perpendicular or right-angled alignment to the surface of the workpiece / component.
  • the angle of the laser to the surface of the component transversely to the joining direction can be between -45 and -2 ° or +2 and + 45 °.
  • At right angles to the joining direction means that the alignment is to be considered at right angles to the joining direction.
  • the angle of the laser (laser axis or the axis of the laser beam) to the surface of the component and in the joining direction between -25 and + 25 ° can be selected.
  • 0 ° corresponds to a perpendicular or right-angled alignment to the surface of the component.
  • the distance between the center point (laser axis) of the spot diameter and the center point (tip) of the filler metal can be selected between 0.5 and 10 mm, in particular between 1 and 5 mm.
  • both methods (laser / MSG) or their arrangements can be spatially and temporally arranged in such a way that they do not act in a common weld pool.
  • the speed of the filler material can be selected between 3 and 28 m / min, in particular between 8 and 25 m / min.
  • the thickness of the filler metal can be selected between 0.8 and 1.6 mm.
  • the welding current of the MSG process can be selected between 100 and 400 A, in particular between 120 and 380 A.
  • the welding voltage of the MSG process can be selected between 15 and 35 V, in particular between 18 and 32 V.
  • an iron-based or copper-based filler material can be used for the MSG welding method.
  • a filler material with a yield point is used which essentially corresponds to the yield point of the component with the lower yield point.
  • the second component and / or first component can consist of steel material with the following chemical composition in% by weight:
  • the steel material has been austenitized and hardened before being made available.
  • the steel material can be austenitized and hardened in the course of direct or indirect hot forming.
  • Direct hot forming is based on an essentially flat sheet metal blank (steel material), which is hot formed and hardened, in particular press hardened.
  • Indirect hot forming is based on a preform (steel material) which has been cold preformed from a sheet metal blank, which is postformed in the warm state and / or calibrated to final dimensions and hardened, in particular press hardened.
  • the steel material is in particular heated or austenitized to a temperature of at least Ac3, preferably heated to a temperature which is higher than Ac3, so that a complete and global conversion into austenite can be ensured. That (Press) hardening takes place in at least one (press) hardening tool, which in particular is actively cooled and provides corresponding (critical) cooling speeds in order to set the conversion of austenite into a hard structure comprising essentially martensite and / or bainite in the second component to be able to. Parameters such as Acl, Ac3, (critical) cooling rates etc. depend on the composition of the steel material used and can be derived from so-called ZTU or ZTA diagrams.
  • the first and / or second component which is preferably hardened, can have a structure made of martensite with at least 50%, in particular at least 60%, preferably at least 70%, preferably at least 80%, particularly preferably at least 90%, with others or remaining Structural components in the form of bainite, austenite, retained austenite, cementite, pearlite and / or ferrite can be present.
  • the remaining non-martensitic structural component consists for the most part of bainite, it being possible for pearlite and / or ferrite to be present with up to 10%, preferably with up to 5%.
  • the structure preferably consists of 100% martensite, whereby the highest possible hardness, in particular in connection with the corresponding alloying elements used, can be provided.
  • the structure can optionally have up to a maximum of 2% production-related, unavoidable structural components such as cementite and / or other precipitates such as carbides, nitrides and / or oxides and their mixed forms.
  • the invention relates to a steel vehicle wheel comprising a wheel rim with a wheel disc that is thermally and cohesively connected to the wheel rim.
  • the joint between the wheel rim and the wheel disk is a laser-MSG hybrid joint.
  • the structure carrying the tire flanks and producing the tightness cannot be formed by the wheel rim, but is created by welding the wheel disc to the wheel rim, particularly preferred in so-called full-face steel vehicle wheels.
  • Depth means the alignment of the joint seam in its longest extent in cross section from the top layer to the root or corresponds to the seam thickness
  • width means the alignment of the joint seam in its longest extent essentially at right angles to the depth in cross section or seam width , whereby the heat affected zone is not taken into account in this view.
  • the expression “essentially” can be understood to mean deviations between +/- 20%, in particular between +/- 10%, preferably between +/- 5, which means at right angles and 90 ° that the maximum range is from 72 ° to 108 ° is to be understood as essentially rectangular.
  • the wheel rim can have a flange for joining to the wheel disc, which defines an extension or width which corresponds to a radius with which the flange is smaller than or equal to the remaining part the wheel rim is bent.
  • the extension or width can be understood as the length between the front edge of the flange and the transition into the radius. The extension can also be 0, so that there is then no classic flange but only the transition or part of the transition of the curved area of the wheel rim.
  • the area of the front edge of the flange or the curved sub-area of the wheel rim can also be covered by the joining seam, either part of the front edge (in certain areas) or the front edge is completely covered by the joining seam.
  • the second component or the wheel disc can have a thickness of 3 to 6 mm.
  • the steel vehicle wheel is preferably intended for use on passenger vehicles.
  • the second component or the wheel disc can have a thickness of 4 to 10 mm.
  • the steel vehicle wheel is preferably intended for use on trucks or utility vehicles.
  • FIG. 3 shows a part of a steel vehicle wheel in cross section according to a second embodiment of the invention.
  • FIG. 4 shows a part of a steel vehicle wheel in cross section according to a third embodiment of the invention.
  • Figures 1 and 2 show a comparison of a steel vehicle wheel joined by means of MSG welding process, Figure 1, and a steel vehicle wheel according to the invention joined by means of laser MSG hybrid process (3), Figure 2.
  • a first component (1 ) made of steel and a second component (2) made of steel which corresponded to a wheel rim (1) and a wheel disc (2), an assembled steel vehicle wheel being produced by means of different thermal, cohesive joining of the first and second components.
  • the joint connection in FIG. 1 is an MSG joint connection and that in FIG. 2 is a laser-MSG hybrid joint connection (4), which were each formed in the flanged joint.
  • the embodiments shown in this case relate to a full-face steel vehicle wheel.
  • the first component (1) was made from one Steel material of quality S420MC formed, for example by means of profiling and / or pressure rolling.
  • the wheel rim (1) has a flange (1.1) for joining to the wheel disc (2), which defines an extension (bl) which is less than or equal to the radius (rl) with which the flange (1.1) is separated from the rest of the part the wheel rim (1) is bent over.
  • the flange (1.1) had a thickness of 1.8 mm.
  • the second component (2) was each formed from a manganese-boron steel material of the quality 22MnB5, which was preferably austenitized and hardened. The thickness of the second component (2) was 4.35 mm.
  • the MSG welding process was carried out as MAG welding on a welding system from SKS Welding, with a filler material, which is available under the trade name Union K 56, in wire form with a diameter of 1 mm and a wire feed rate of 9 m / min, with a protective gas of 90% argon and 10% carbon dioxide and a gas throughput of approx. 13 l / min.
  • the welding current and voltage were 180 A and 25 V.
  • the joining speed was approx. 0.7 m / min, with high heat input. As can be seen from FIG. 1, it was not possible to produce a flawless joint seam.
  • the illustration in FIG. 2 is different.
  • a system comprising a laser arrangement with a fiber laser with the trade name "YLS-10000" from IPG, which was operated with the following parameters: Ytterbium laser with a wavelength of 1070 nm, power of 4, 5 kW, focus position of +/- 0 mm, fiber diameter 400 pm, spot diameter 600 pm, collimation 200 mm, focal length 300 mm, joining speed 2 m / min, angle (a) across the joining direction + 5 °, angle in joining direction 0 °, Distance between the center (laser axis) of the spot diameter and the center (tip) of the filler material 3 mm, whereby the laser was guided leading in the joining direction; and downstream MAG welding arrangement with the trade name "TransPuls Synergie 5000 CMT" from Fronius, which was operated with the following parameters: Filler material Union K 56 in wire form with a diameter of 1 mm and a wire feed rate of approx. 22 m / min, shielding gas 82% Argon and 18% carbon dioxide with a gas
  • the joint seam (5) preferably encompasses the front edge (1.2) of the flange (1.1) or the front edge of the curved sub-area of the wheel rim (1) in certain areas or completely, see FIGS. 3 and 4.
  • additional weight can be saved by adapting the extension (bl) of the flange (1.1) of the wheel rim (1), which on the one hand benefits the rotating mass and the geometric notch.
  • the features described can all be combined with one another as far as technically possible.
  • the design of the steel vehicle wheel is not limited to the full-face design (joining seam in the full flow of force), but can also be advantageously transferred to steel vehicle wheels with a drop center (additional force / form fit) and others. This applies to steel vehicle wheels for passenger cars as well as for trucks or utility vehicles.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Laser Beam Processing (AREA)

Abstract

La présente invention concerne un procédé de fabrication d'une roue de véhicule en acier (3), le procédé comprenant les étapes suivantes : - utilisation d'un premier composant qui correspond à une jante (1) et d'un second composant qui correspond à un disque de roue (2) ; - assemblage thermique en une seule pièce du premier composant et du second composant afin de produire une roue de véhicule en acier assemblée (3). L'invention concerne également une roue de véhicule en acier (3), comprenant une jante de roue (1) avec un disque de roue (2) assemblé thermiquement d'un seul tenant à la jante de roue (1).
EP21718003.3A 2020-04-02 2021-03-23 Procédé de fabrication d'une roue de véhicule en acier et roue de véhicule en acier ainsi fabriquée Pending EP4126442A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020204310.8A DE102020204310B3 (de) 2020-04-02 2020-04-02 Stahl-Fahrzeugrad
PCT/DE2021/100290 WO2021197542A1 (fr) 2020-04-02 2021-03-23 Procédé de fabrication d'une roue de véhicule en acier et roue de véhicule en acier ainsi fabriquée

Publications (1)

Publication Number Publication Date
EP4126442A1 true EP4126442A1 (fr) 2023-02-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP21718003.3A Pending EP4126442A1 (fr) 2020-04-02 2021-03-23 Procédé de fabrication d'une roue de véhicule en acier et roue de véhicule en acier ainsi fabriquée

Country Status (3)

Country Link
EP (1) EP4126442A1 (fr)
DE (1) DE102020204310B3 (fr)
WO (1) WO2021197542A1 (fr)

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EP4334324A1 (fr) 2021-05-05 2024-03-13 Revolution Medicines, Inc. Inhibiteurs de ras covalents et leurs utilisations
WO2022235870A1 (fr) 2021-05-05 2022-11-10 Revolution Medicines, Inc. Inhibiteurs de ras pour le traitement du cancer
WO2022235864A1 (fr) 2021-05-05 2022-11-10 Revolution Medicines, Inc. Inhibiteurs de ras
CN113173034A (zh) * 2021-06-10 2021-07-27 蒂森克虏伯钢铁(北京)有限公司 用于商用车辆的超轻量化钢制车轮

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