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WO2023155954A1 - Procédé de fabrication d'un capuchon de soudage et capuchon de soudage - Google Patents

Procédé de fabrication d'un capuchon de soudage et capuchon de soudage Download PDF

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Publication number
WO2023155954A1
WO2023155954A1 PCT/DE2023/100127 DE2023100127W WO2023155954A1 WO 2023155954 A1 WO2023155954 A1 WO 2023155954A1 DE 2023100127 W DE2023100127 W DE 2023100127W WO 2023155954 A1 WO2023155954 A1 WO 2023155954A1
Authority
WO
WIPO (PCT)
Prior art keywords
welding cap
base body
welding
produced
weight
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/DE2023/100127
Other languages
German (de)
English (en)
Inventor
Hans-Günter Wobker
Peter Böhlke
Hark Schulze
Frank Böert
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.)
Cunova GmbH
Original Assignee
Cunova 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 Cunova GmbH filed Critical Cunova GmbH
Publication of WO2023155954A1 publication Critical patent/WO2023155954A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
    • B23K35/0205—Non-consumable electrodes; C-electrodes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/10—Formation of a green body
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/20—Direct sintering or melting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/20—Direct sintering or melting
    • B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • 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
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/30—Features relating to electrodes
    • B23K11/3009—Pressure electrodes
    • B23K11/3018—Cooled pressure electrodes
    • 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
    • B23K15/00—Electron-beam welding or cutting
    • B23K15/0046—Welding
    • B23K15/0086—Welding welding for purposes other than joining, e.g. built-up 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
    • B23K26/0093—Working by laser beam, e.g. welding, cutting or boring combined with mechanical machining or metal-working covered by other subclasses than B23K
    • 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
    • B23K26/34—Laser welding for purposes other than joining
    • B23K26/342—Build-up 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
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/222—Non-consumable electrodes
    • 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
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/40—Making wire or rods for soldering or welding
    • B23K35/402—Non-consumable electrodes; C-electrodes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y70/00—Materials specially adapted for additive manufacturing
    • B33Y70/10—Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y80/00—Products made by additive manufacturing
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/04—Making non-ferrous alloys by powder metallurgy
    • C22C1/0425—Copper-based alloys
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/04—Making non-ferrous alloys by powder metallurgy
    • C22C1/05—Mixtures of metal powder with non-metallic powder
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C22C32/001—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C22C32/001—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides
    • C22C32/0015—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides with only single oxides as main non-metallic constituents
    • C22C32/0021—Matrix based on noble metals, Cu or alloys thereof
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C22C32/0047—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents
    • C22C32/0052—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents only carbides
    • C22C32/0063—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents only carbides based on SiC
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C22C32/0047—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents
    • C22C32/0068—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents only nitrides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/10—Formation of a green body
    • B22F10/14—Formation of a green body by jetting of binder onto a bed of metal powder
    • 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
    • B23K2101/34—Coated articles, e.g. plated or painted; Surface treated articles
    • 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
    • B23K2103/08—Non-ferrous metals or alloys
    • B23K2103/12—Copper or alloys thereof
    • 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
    • B23K2103/50—Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26
    • B23K2103/52—Ceramics

Definitions

  • the invention relates to a method for producing a welding cap according to the features of patent claim 1.
  • a welding cap produced according to the method according to the invention is the subject of patent claim 14.
  • Resistance spot welding is a process that is often used in vehicle construction and general mechanical engineering. It is used to weld sheet metal components that are joined to form assemblies. Uncoated sheets and the galvanized steel sheets often used in vehicle construction can be welded, as can sheets with protective layers containing silicon or made of aluminum alloys.
  • the metal sheets are mechanically pressed against one another using welding tongs.
  • a welding current flows over the contact point and heats it up due to the ohmic resistance, so that the metal sheets are locally be welded. After welding there is a firm connection.
  • the welding electrodes that come into contact with the sheets are subject to high thermal and mechanical as well as chemical stresses and, as a result, severe wear. For this reason, the welding caps are reworked after a number of spot welds and can be replaced when certain wear limits are reached.
  • the service life of the welding cap before reworking can be between 50 and 70 or even several 100 spot welds.
  • Weld caps can be made from CuCrZr materials.
  • corresponding blocks are cast, processed into bars by extrusion, drawing and annealing and then formed into welding caps using a cold extrusion process. This is where they get their geometry and mechanical properties.
  • the disadvantage of this manufacturing process is that there is no way of adapting the welding caps or the cap material to the local requirement profile.
  • a high abrasion resistance and diffusion resistance in contact areas of the cap that come into contact with the metal sheets would be particularly favorable.
  • high strength and ductility are required, as well as good electrical conductivity.
  • a method for producing a welding electrode is known from EP 3 205 441 B1, in which a hollow bar is filled with a compacted copper alloy powder.
  • the billet is extruded and formed into a composite metal wire having a core with a sheath.
  • the wire is shaped into a composite welding electrode.
  • the core has a dispersion-reinforced copper.
  • the invention is based on the object of demonstrating a method for producing welding caps which locally have different technological properties without being restricted by the process limits of impact extrusion processes. This problem is solved in a method with the features of patent claim 1 . A corresponding welding cap as a result of this method is the subject of patent claim 14.
  • the method according to the invention is used to produce a welding cap made of copper or a copper alloy and is characterized in that the welding cap is produced at least partially additively using a 3D printing process.
  • a 3D printing process can be used to produce welding caps with material properties that can have a gradient over the cross section or the height of the welding cap or have a different material composition.
  • 3D printing by supplying powder with the appropriate properties via the height and, if necessary, via the diameter (cross-section), locally different areas can be created that have properties ideally adapted to the requirement profile of the welding cap.
  • copper alloy covers alloys with copper as the main component, where the proportion of copper is at least 50% by weight.
  • the copper alloys within the meaning of the invention are not copper-containing alloys in which copper is not the main component and in particular not refractory metals, as which the high-melting base metals of the 4th subgroup (titanium, zirconium and hafnium), 5th Subgroup (vanadium, niobium and tantalum) and the 6th subgroup (chromium, molybdenum and tungsten).
  • the copper alloy can contain small amounts of one or more of the refractory metals mentioned.
  • a base body is preferably produced from a semi-finished product, in particular by means of an extrusion process.
  • the base body is made of copper or a copper alloy.
  • the base body can be brought into the desired shape in combination with machining and/or a forming process. It serves as a substrate or carrier in order to attach a functional layer to the base body.
  • the functional layer is produced using the 3D printing process.
  • the functional layer is arranged in particular on an upper side of the welding cap. This means the area of the welding cap that comes into contact with the metal sheet via a functional surface, ie a contact surface, during resistance spot welding.
  • the combination of a base body with a functional layer makes it possible to use the cost advantages of extrusion processes, especially cold extrusion processes, with the metallurgical and geometric advantages of the 3D printing process for a particularly economical and requirement-based design of welding caps with a long service life.
  • the result is a hybrid welding cap that partially consists of the prefabricated, extruded semi-finished product and whose functional layer or the functional surface formed on the functional layer is produced using a 3D printing process.
  • the welding cap consists at least partially of a powder mixture of CuCrZr, CuAg, CuZr or CuZrAg.
  • the powder mixture can additionally contain at least one admixture of a ceramic material.
  • a ceramic material is understood to be a solid material made from inorganic compounds with non-metallic properties.
  • the ceramic material is oxidic, nitridic or carbide. It is in particular at least one ceramic material from the following group: Al2O3, ZrÜ2, CrO2, BN, WC, BC, SiC.
  • Other metallic or non-metallic powders or intermetallic phases can also be added.
  • the mass fraction of the sum of the admixtures is, in particular in some areas, i.e.
  • the ceramic material Even with high mass fractions of the ceramic material, it is always a welding cap made of copper or a copper alloy, because the copper or the copper alloy itself forms the supporting matrix for the embedded ceramic materials. Rather, they are copper-based metal-matrix composites.
  • the mass fraction of the ceramic material preferably increases in the direction of the functional surface in order to increase the wear resistance there. The invention does not rule out the use of a single powder mixture with a composition that is uniform over the entire spatial area for the functional layer.
  • the powder mixture is preferably varied and adapted to the requirements in the respective functional area of the welding cap, in particular in order to form a functional gradient.
  • the functional layers can themselves have different gradients in their composition.
  • An increase in the proportion by weight of the at least one ceramic material in the functional layer can take place essentially continuously if the additively manufactured layers have a sufficiently small layer thickness. In the case of several layers with the same composition or individual thicker layers, larger gradations can be implemented as required.
  • the proportion of the ceramic material adjacent to the base body can be set to an initial value below 10% by weight, preferably 0.05 to 10% by weight, in particular 0.05 to 5% by weight, of the weight of the functional layer . In the direction of the functional surface, the proportion by weight of the ceramic material can increase to a final value that is at least 1.0% by weight greater than the initial value.
  • the absolute final value is preferably greater than 5% by weight and preferably less than 80% by weight/50% by weight/20% by weight, in particular less than 15% by weight.
  • the specific gravity of ceramic materials is much lower than that of a copper alloy and therefore the volume fraction of the ceramic material is much larger than its weight fraction.
  • the proportion of copper in the matrix decreases sharply and with it the conductivity. Therefore, the average weight fraction should preferably not exceed 20% by weight even if the final value of the weight fraction of the ceramic material is 50% by weight or more.
  • the base body is produced without cutting by hot forming, in particular extrusion, of a CuCrZr material.
  • Cold forming preferably follows.
  • a base area is formed on the base body, onto which the functional layer is printed using the 3D printing process.
  • the base is basically flat.
  • the base area is uneven or is preferably arched, ie in particular convex or also concave, with the aim of optimizing the pressure distribution in the functional layer.
  • Electron beam-based processes (electron beam powder bed fusion - EBPBF) and laser beam melting (laser powder bed fusion - LPBF) are particularly suitable as 3D printing processes.
  • Laser beam sintering processes, electron beam sintering processes or binder jetting processes are also suitable for producing the welding cap.
  • 3D printing processes are additive manufacturing processes based on the principle of using a digital model from a CAD file as the basis for additive, layered material construction.
  • Additive manufacturing makes it possible to form complex structures.
  • the welding cap has a surface structure on the outside, which is set up to enlarge the surface of the outside in order to improve the heat dissipation to the environment.
  • the addition of certain particles makes it possible to increase the oxidation resistance and high-temperature corrosion stability of the welding caps, especially the functional layer, at the same time.
  • Admixtures such as Al2O3, ZrÜ2, CrO2, BN, WC, BC, SiC increase the abrasion resistance of the functional surface.
  • the geometry of the welding cap produced according to the invention can be more complex than it can be produced using a pure extrusion process.
  • one or more cooling channels for conducting a cooling liquid are formed in a wall of the welding cap.
  • One or more cooling grooves can be formed on the inside of the surface of the welding cap.
  • At least one cooling fin may be formed on an outside surface of the welding cap.
  • the welding cap is by no means limited to a rotationally symmetrical geometry, regardless of the cooling channels, cooling grooves or cooling ribs. It can also have a polygonal, elliptical or substantially rectangular shape. Such a design is possible achieved in particular by combining different cost-effective production processes, such as in particular the provision of a semi-finished product produced using the impact extrusion process in combination with a further non-material-removing forming step and/or in combination with machining.
  • the welding cap according to the invention produced by this method, therefore has a base body and a functional layer, in particular made of a different material than the base body, so that due to the locally different material properties, the requirements for welding caps can be economically realized in terms of production technology.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Ceramic Engineering (AREA)
  • Civil Engineering (AREA)
  • Composite Materials (AREA)
  • Structural Engineering (AREA)
  • Powder Metallurgy (AREA)

Abstract

L'invention concerne un procédé de fabrication d'un capuchon de soudage à partir de cuivre ou d'un alliage de cuivre, le capuchon de soudage étant fabriqué au moins en partie par le biais d'un procédé d'impression 3D.
PCT/DE2023/100127 2022-02-16 2023-02-16 Procédé de fabrication d'un capuchon de soudage et capuchon de soudage Ceased WO2023155954A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022103617.0A DE102022103617A1 (de) 2022-02-16 2022-02-16 Verfahren zur Herstellung einer Schweißkappe und Schweißkappe
DE102022103617.0 2022-02-16

Publications (1)

Publication Number Publication Date
WO2023155954A1 true WO2023155954A1 (fr) 2023-08-24

Family

ID=85415206

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2023/100127 Ceased WO2023155954A1 (fr) 2022-02-16 2023-02-16 Procédé de fabrication d'un capuchon de soudage et capuchon de soudage

Country Status (2)

Country Link
DE (1) DE102022103617A1 (fr)
WO (1) WO2023155954A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050092728A1 (en) * 2003-09-10 2005-05-05 Fabrice Barbeau Resistance welding electrode and associated manufacturing method
WO2006122410A1 (fr) * 2005-05-17 2006-11-23 Huys Industries Limited Electrode et procede de soudage
EP3205429A1 (fr) * 2016-02-10 2017-08-16 Luvata Ohio, Inc. Procédés de fabrication de matériaux composites, des fils composites et des électrodes de soudage
KR101974590B1 (ko) * 2017-12-11 2019-05-02 한국생산기술연구원 알루미늄 판재 용접용 저항 점 용접전극
EP3205441B1 (fr) 2016-02-10 2021-06-30 Luvata Ohio, Inc. Électrodes de soudage et procédés de fabrication de celui-ci

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004024979B3 (de) 2004-05-21 2006-01-12 Alexander Binzel Schweisstechnik Gmbh & Co. Kg Verfahren und Vorrichtung zum Reinigen einer beim Widerstandspunktschweißen eingesetzten Elektrode oder Kappe sowie Vorrichtung zum Widerstandspunktschweißen
DE102019134727A1 (de) 2019-06-12 2020-12-17 Friedrich-Alexander-Universität Erlangen-Nürnberg Schweißelektrode und Verwendung der Schweißelektrode
CN114340876A (zh) 2019-07-26 2022-04-12 维勒3D股份有限公司 三维物体形成的质量保证
DE102019128076B4 (de) 2019-10-17 2023-03-23 GM Global Technology Operations LLC VERBESSERTE WIDERSTANDSSCHWEIßKAPPE

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050092728A1 (en) * 2003-09-10 2005-05-05 Fabrice Barbeau Resistance welding electrode and associated manufacturing method
WO2006122410A1 (fr) * 2005-05-17 2006-11-23 Huys Industries Limited Electrode et procede de soudage
EP3205429A1 (fr) * 2016-02-10 2017-08-16 Luvata Ohio, Inc. Procédés de fabrication de matériaux composites, des fils composites et des électrodes de soudage
EP3205441B1 (fr) 2016-02-10 2021-06-30 Luvata Ohio, Inc. Électrodes de soudage et procédés de fabrication de celui-ci
KR101974590B1 (ko) * 2017-12-11 2019-05-02 한국생산기술연구원 알루미늄 판재 용접용 저항 점 용접전극

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
BROOKE RENEE DYER: "Additive Manufacturing of Copper Electrodes and Bus Work for Resistance Welding", May 2017 (2017-05-01), XP002809262, Retrieved from the Internet <URL:https://etd.ohiolink.edu/apexprod/rws_olink/r/1501/10?clear=10&p10_accession_num=ysu1495803338676301> [retrieved on 20230508] *

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