EP4363151A1 - Procédé permettant de raccorder des composants disposés les uns au-dessus des autres, composant composite et dispositif permettant de mettre en oeuvre un procédé correspondant - Google Patents

Procédé permettant de raccorder des composants disposés les uns au-dessus des autres, composant composite et dispositif permettant de mettre en oeuvre un procédé correspondant

Info

Publication number
EP4363151A1
EP4363151A1 EP22714984.6A EP22714984A EP4363151A1 EP 4363151 A1 EP4363151 A1 EP 4363151A1 EP 22714984 A EP22714984 A EP 22714984A EP 4363151 A1 EP4363151 A1 EP 4363151A1
Authority
EP
European Patent Office
Prior art keywords
friction stir
stir welding
components
opening
welding tool
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
EP22714984.6A
Other languages
German (de)
English (en)
Inventor
Paul Alois JARITZ
Mario Leitner
Thomas Weinberger
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.)
Stirtec GmbH
Original Assignee
Stirtec 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 Stirtec GmbH filed Critical Stirtec GmbH
Publication of EP4363151A1 publication Critical patent/EP4363151A1/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
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
    • B23K20/1245—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding characterised by the apparatus
    • B23K20/126—Workpiece support, i.e. backing or clamping
    • 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
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
    • B23K20/1245—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding characterised by the apparatus
    • 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
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
    • B23K20/1265—Non-butt welded joints, e.g. overlap-joints, T-joints or spot welds
    • 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
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • 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
    • B23K2101/36—Electric or electronic devices
    • B23K2101/38—Conductors

Definitions

  • the invention relates to a method for connecting components arranged one above the other by friction stir welding, the components being clamped by a clamping device having an opening, after which the components are connected by means of a friction stir welding tool which protrudes through the opening and rotates about an axis.
  • the invention further relates to a composite component, having an upper component and a lower component, which are connected by friction stir welding.
  • the invention relates to a device for connecting two components by friction stir welding, having a friction stir welding tool that can be rotated about an axis and a clamping device with an opening.
  • a disadvantage of the methods and devices known from the prior art is that an upper component must always be designed larger than the opening of a clamping device through which opening the friction stir welding tool is guided to the components to be connected, since otherwise there is no stable clamping of the components to be connected is made possible by means of the clamping device.
  • the object of the invention is to specify a method of the type mentioned at the outset, with which components which are arranged one above the other can also be welded to one another by friction stir welding, with an upper component being particularly small or having a very small extent in at least one direction.
  • a corresponding composite component should also be specified.
  • the object of the invention is to specify a device for carrying out a corresponding method.
  • the first object is achieved according to the invention by a method of the type mentioned at the outset, in which an upper component arranged on a lower component protrudes through a groove on an underside of the clamping device along an insertion direction into the opening and is at least partially fixed by means of the groove during friction stir welding .
  • the groove usually extends into the clamp from an underside of the clamp but does not normally reach the top, although an arrangement in which the groove extends from the underside of the clamp to the top of the clamp is also possible.
  • wires can also be welded to plate-shaped components with a method according to the invention, which is advantageous, for example, for applications in the field of electromobility, especially since a very favorable electrical connectivity is achieved by a friction stir welded connection.
  • the upper component does not completely fill the opening in a plan view and in particular a bottom edge of the Clamping device does not rest completely on the upper component.
  • a lateral sealing of a plasticization zone is achieved by a corresponding contact of the bottom edge of the clamping device, which prevents plasticized material from escaping laterally from the opening.
  • a corresponding seal is also made possible in the case of smaller upper components.
  • the bottom edge of the opening can be in contact with the upper component in the area of the groove and in contact with the lower component in the area outside the groove in order to laterally seal the plasticization zone during welding and to fix the components to be connected during friction stir welding.
  • the upper component is preferably made to have an extent in a direction normal to the axis and normal to the direction of insertion which is the same as or less than a diameter of the opening.
  • the groove is usually formed with appropriate dimensions normal to the direction of insertion and normal to the axis, which is also equal to or smaller than a diameter of the opening.
  • the groove is usually made larger than the upper component, although a groove with a cross section that is smaller than a cross section of the upper component is also possible in principle. In such a case, the upper component can be clamped in the groove by the clamping device and deformed elastically and/or plastically.
  • an upper component having a plurality of individual parts, in particular stranded wires is used.
  • a conductor consisting of thin individual wires, a wire rope or the like can be connected to a lower component such as a metal plate or the like.
  • a corresponding connection can be used, for example, as an electrical connection in an electric vehicle.
  • the upper component and/or the lower component has a coating which is thermally decomposed by the friction stir welding and/or is stirred into an area of a connection between the upper component and the lower component.
  • a mechanical and electrical quality of the connection can be influenced and in particular increased in a simple manner.
  • the lower component can be formed by a galvanized sheet steel and the upper component by a magnesium mold steel, the galvanizing and the magnesium mold steel being mixed in a joining zone or plasticizing zone.
  • the upper component protrudes on the one hand out of the groove and on the other hand out of the opening, after which it is upset by moving the friction stir welding tool into the opening, after which the upper component is joined by friction stir welding to the lower component is connected.
  • This has proven particularly useful for connecting non-precompacted bundles of strands, which can form an upper component, to a plate-shaped component, which can form a lower component.
  • the components are additionally connected by ultrasonic welding, with the friction stir welding tool, the clamping device and/or a separate component acting as a sonotrode.
  • the components can then be connected equally by friction stir welding and by ultrasonic welding.
  • a sonotrode is a component through which high-frequency mechanical vibrations are applied to components, with which mechanical vibrations the components to be connected are possibly set into resonance vibrations in order to achieve contacting and connection.
  • the sonotrode thus provides a mechanical connection of a Vibration generator, in particular an ultrasonic generator, to components to be connected.
  • the sonotrode can be formed by a separate component, by the clamping device and/or the friction stir welding tool. If necessary, only the pin or only the sleeve of the friction stir welding tool can also act as a sonotrode in order to achieve a connection of the components in parallel by friction stir welding and by ultrasonic welding.
  • the vibrations applied with the sonotrode particularly preferably have a frequency of more than 1 kHz, in particular more than 20 kHz, although lower frequencies are also possible in principle.
  • a method according to the invention can be used to connect a wide variety of materials. It is preferably provided that components with different melting temperatures are used or that the method is used to connect components with different melting temperatures to one another. Of course, the method can also be used to connect components made of similar or the same materials, for example materials made of Cu-ETB.
  • the friction stir welding tool can be made of one or more of the materials steel,
  • the friction stir welding tool is coated on the surface, in particular with DLC, TiN, TiAIN, AITiN and the like.
  • Pin and sleeve are thus, for example, at a distance from one another in the axial direction, with the pin protruding opposite the sleeve and forming a pin in the sense of a conventional friction stir welding tool, are moved in the same direction and rotating at the same speed axially onto the upper of the components arranged one above the other and onto the upper component is pressed, whereby first the upper component and subsequently also the lower component are plasticized.
  • the pin and sleeve can also be pressed onto the upper component without an axial spacing or with a spacing with the sleeve protruding in relation to the pin.
  • pin and sleeve are at an axial distance from one another during plasticization or at the start of friction stir welding, and also regardless of whether the pin or sleeve protrudes further axially, it is preferred after plasticization of the components to be connected and before cooling of the plasticization zone
  • the pin and sleeve are moved axially in such a way that they are no longer at a distance from one end of the friction stir welding tool that is in contact with the upper component, or the ends of the pin and sleeve are approximately in one plane.
  • the pin and sleeve are then pulled out of the opening of the clamping device in a rotating manner and without any spacing relative to one another in the axial direction, so that the composite component formed from the upper component and the lower component during friction stir welding does not have an end hole.
  • material is fed to a plasticizing zone during the friction stir welding, in particular via the opening and/or the groove.
  • a cross section of the groove is at least slightly larger than a cross section of the upper component, so that material can be fed to the groove via a free cross section.
  • the additionally supplied material is supplied through an additional opening in the clamping device.
  • the material fed to the plasticizing zone ie a zone in which the components to be joined are plasticized by the friction stir welding tool basically any suitable material in any form.
  • the material can also be fed in via a wire feed or in solid form, preferably in the form of a thin flake or a so-called billet, can be inserted into an area that is plasticized during the friction stir welding.
  • the billet can be inserted into the opening or between the components to be connected in order to stir in this material.
  • material is supplied in powder form in order to achieve particularly advantageous properties by distributing the powder in the plasticizing zone.
  • the material supplied can correspond to the components to be connected in terms of properties such as conductivity, strength, elasticity and the like. However, it can also be provided that material that differs from the components to be connected and has significantly different properties, for example with regard to electrical conductivity, hardness, strength, intermetallic phases and the like, is supplied in order to influence properties of the connection in a targeted manner.
  • a corresponding composite component is characterized in particular by the fact that two components are connected, which can consist of a wide variety of materials, with one of the components being able to have a particularly small cross section.
  • the composite component has an upper component and a lower component, which are connected by friction stir welding, with the upper component being formed by a stranded cable.
  • the clamping device has a groove on an underside, with which groove an upper component arranged on a lower component and protruding up to the opening can be fixed so that the upper component is connectable to the lower component by means of the friction stir welding tool positioned in the opening. Due to the bottom groove in the clamping device, a sealing of a plasticizing zone or a joining zone on the bottom side in the opening is also possible if the upper component has a smaller cross section than the opening or does not completely fill the opening.
  • an outside diameter of the friction stir welding tool corresponds to a diameter of the opening, with a diameter of the opening in particular being 0.01 mm to 5 mm larger than an outside diameter of the friction stir welding tool.
  • the clamping device can be designed, for example, as a plate or as a ring, with the opening usually having a circular cross section which corresponds to a cross section or an outer contour of the friction stir welding tool.
  • a method according to the invention can be carried out with any desired friction stir welding tool, ie also with a one-piece friction stir welding tool with a pin and a shoulder.
  • the friction stir welding tool In order to produce a connection without an end hole, however, it is particularly preferred for the friction stir welding tool to have a pin that can be moved relative to a sleeve. The pin and sleeve can then be moved in translation relative to each other in the direction of the axis, so that a smooth surface without an end hole can be achieved by pulling back the pin or sleeve while the upper component is plasticized. Such a surface is particularly advantageous for achieving a favorable electrical resistance.
  • the pin can be positioned in a through hole in the sleeve.
  • the sleeve can then be designed, for example, as a hollow cylinder, with the pin being arranged in a through bore of the hollow cylinder.
  • an outer diameter of the pin usually corresponds to an inner diameter of the hollow-cylindrical sleeve in order to prevent penetration of plasticized material during friction stir welding in an area between the sleeve and the pin.
  • a vibration generator with which high-frequency mechanical vibrations, in particular vibrations with a frequency of more than 1 kHz, preferably more than 20 kHz, particularly preferably ultrasonic vibrations, can be generated is preferably provided, with a sonotrode being provided with which the high-frequency mechanical vibrations the components to be connected are transferrable.
  • the components can then be connected both by friction stir welding and by ultrasonic welding in order to achieve both a favorable mechanical connection and an advantageous electrical connection.
  • the sonotrode can be formed by any component which is connected to the vibration generator on the one hand and to the components to be connected on the other hand. It is particularly favorable if the sonotrode is formed by the clamping device and/or the friction stir welding tool, in particular the pin and/or the sleeve. In any case, these components are in mechanical contact with the components to be connected, which is why a particularly good transmission of the vibrations is achieved here. Moreover, it has been shown that a surprisingly favorable mechanical and equally electrical connection between the components to be connected can be achieved by the transmission of high-frequency vibrations generated by a vibration generator, in particular an ultrasonic generator, with simultaneous friction stir welding.
  • a machine table is preferably provided, against which the components can be pressed during the friction stir welding. As a result, an axial force can be applied in a stable and robust manner, which is advantageous for plasticizing the components.
  • a spindle is usually provided, with which at least part of the friction stir welding tool can be rotated about the axis relative to the machine table.
  • the sleeve and pin are driven at the same speed and in the same direction of rotation, so that in principle one spindle can be sufficient to weld the sleeve and To set the pin in a rotational movement around the axis.
  • the sleeve and the pin are driven independently of one another.
  • two spindles can be provided for this purpose, which can be arranged coaxially in order to drive the sleeve and pin independently of one another.
  • the spindle can either be connected to the machine frame or designed to be movable relative to the machine table by a separate device, in particular a robot.
  • a separate device in particular a robot.
  • this or another robot in particular welding tongs
  • the pin and sleeve or the entire friction stir welding tool can generally be moved relative to the components to be connected independently of the clamping device.
  • a linear drive is preferably provided, with which the friction stir welding tool can be moved translationally along the axis relative to the machine table.
  • the friction stir welding tool can be moved translationally in all spatial directions by means of a corresponding drive, in order to be able to connect components to one another at different positions on the machine table.
  • a linear drive can be provided with which the clamping device can be moved translationally along the axis relative to the machine table in order to fix the components relative to the machine table.
  • a structurally equally simple and robust device results when a machine frame is provided, via which the friction stir welding tool is connected to the machine table, the machine frame being movable relative to the machine table.
  • the machine frame can be movable in a translatory manner relative to the machine table, for example in three spatial directions.
  • the machine frame together with the friction stir welding tool and the clamping device can be moved translationally in the axial direction or in the direction of the axis relative to the machine table in order in particular to press the clamping ring against the components to be connected.
  • the friction stir welding tool can in turn be connected to the machine frame so that it can rotate about the axis and be movable in the axial direction, so that the components to be connected are first clamped by means of the clamping device and then connected to one another by moving the friction stir welding tool in the axial direction relative to the clamping device.
  • a control device with a data processing device is preferably provided for controlling the individual drives, in particular for controlling the spindle, linear drive and machine frame.
  • 1 shows a device for producing an endless friction stir welded connection
  • 2 shows a device
  • FIG. 6 shows a device according to the invention in a sectional view; 7a to 7e components for a method according to the invention;
  • FIG. 1 shows a device of the prior art for producing a friction stir welded joint without an end hole or for carrying out a so-called Refi 11-Friction-Sti r-Spot-Welding process.
  • a corresponding device has a machine table 14, on which the components 1, 2 to be connected are positioned, which according to the prior art, as shown, are usually designed as plates.
  • the device also has a machine frame 15 that can be moved relative to the machine table 14 and in which a friction stir welding tool is arranged so that it can be moved in a translatory manner along an axis 6 and can be rotated about the axis 6 .
  • the friction stir welding tool has an approximately cylindrical central pin 12 and a sleeve 11 formed by a hollow cylinder, which encloses the pin 12 .
  • the pin 12 and sleeve 11 can thus form the pin and shoulder of the friction stir welding tool, with the pin 12 being movable relative to the sleeve 11 here, in contrast to a one-piece conventional friction stir welding tool.
  • the pin 12 can be pulled back into the sleeve 11 to such an extent that the pin 12 and sleeve 11 as shown in FIG.
  • a clamping device 5 formed here by a clamping ring movably connected to the machine frame 15 is provided, which encloses the friction stir welding tool and laterally seals a plasticizing zone at a lower end of the friction stir welding tool during the process.
  • the clamping device 5 is thus also designed as a hollow cylinder here, with the friction stir welding tool being arranged in a central opening 3 of this hollow cylinder.
  • the clamping ring is first placed on an upper component 2, after which the friction stir welding tool, which can be moved translationally along the axis 6 relative to the machine frame 15 and is formed by the pin 12 and sleeve 11, is lowered into the opening 3 and rotated about the axis 6 in the process , in order to connect the components 1, 2 to one another by friction stir welding.
  • the friction stir welding tool which can be moved translationally along the axis 6 relative to the machine frame 15 and is formed by the pin 12 and sleeve 11, is lowered into the opening 3 and rotated about the axis 6 in the process , in order to connect the components 1, 2 to one another by friction stir welding.
  • such a device is not suitable for connecting components 1, 2 to one another in which an upper component 2 has the opening 3 of the Clamping device 5 is not completely filled, especially since otherwise no sealing of the plasticizing zone 13 would be guaranteed.
  • a groove 7 is provided on an underside 16 of the clamping device 5 in a device shown in FIG.
  • the clamping device 5 can lie flat on the side of the upper component 2 on the lower component 1 and thus seal the plasticization zone 13 well, so that a stable connection can be achieved even if the upper component 2 has a smaller cross section than the opening 3.
  • the upper component 2 can be inserted here along an insertion direction 8 into the groove 7 and has an extension 9 in a transverse direction, which is normal to the insertion direction 8 and normal to the axis 6 , which is smaller than a diameter 10 of the opening 3 .
  • FIG. 3a to 3f show different process states of a process according to the invention using the device shown in FIG.
  • a machine table 14 is also provided here, on which the components 1, 2 to be connected are pressed, with the clamping device 5 and the friction stir welding tool, which is also formed here by a central pin 12 and a sleeve 11 surrounding the pin 12, being moved via a non-illustrated and relative to the Machine table 14 movable machine frame 15 are movable.
  • the upper component 2 is first positioned on the lower component 1 , after which the upper component 2 is clamped in the groove 7 by a translational displacement of the clamping device 5 along the axis 6 .
  • the upper component 2 can also be plastically or elastically deformed in the groove 7 so that the upper component 2 can also completely fill the groove 7 .
  • a groove base thus rests on the upper component 2 and the side surfaces of the groove lie laterally on the upper component 2 .
  • a bottom surface or underside 16 of the clamping device 5 lies flat on the lower component 1 in the process states illustrated in FIGS. 3b to 3d.
  • pin 12 and sleeve 11 are moved together along axis 6 downwards.
  • pin 12 and sleeve 11 which usually at the same speed and rotate about the axis 6 in the same direction of rotation, the components 1, 2 to be connected are heated and plastically deformed, so that a plasticization zone 13 is formed.
  • the sleeve 11 is further lowered along the direction of the axis 6 and the pin 12 is slightly raised in the opposite direction, so that the upper component 2 is connected to the lower component 1 by friction stir welding.
  • the relative displacement of pin 12 and sleeve 11 forms a cavity or hollow space below pin 12 and in sleeve 11, into which cavity the plasticized material is moved, so that the cavity is filled by the plasticized material.
  • the clamping device 5 together with the friction stir welding tool formed by the sleeve 11 and the pin 12 are raised, as a result of which the connection as shown in FIG. 3f is completed.
  • the result is a composite component 4 which has the upper component 2 connected to the lower component 1, the connection being end-hole-free. This achieves favorable mechanical and electrical properties.
  • FIGS. 4a to 4e show another method according to the invention, which is implemented essentially analogously to the method steps shown in FIGS. 3a to 3f.
  • the sleeve 11 is not lowered and the pin 12 raised to form the friction stir welded connection, but rather the pin 12 is lowered and the sleeve 11 raised in exactly the opposite way, as can be seen in FIG. 4c.
  • the cavity is thus formed here to the side of the pin 12 and below the sleeve 11 and not inside the sleeve 11 as shown in FIG. 3c.
  • sleeve 11 and pin 12 thus form a conventional friction stir welding tool with a shoulder and pin Tool.
  • a smooth surface or a surface free of end holes is achieved in a subsequent process step by moving the pin 12 and sleeve 11 in the axial direction in such a way that they form an essentially flat plane at the end, while the upper component 2 is still being heated or cooled. is deformable, as can be seen from the plasticizing zone 13 also shown in FIG. 4d.
  • the friction stir welding tool together with the clamping device 5 is lifted again by means of a machine frame 15 (not shown), as can be seen in FIG. 4e.
  • a composite component 4 with a surface free of end holes is also achieved here in the area of the friction stir welded connection.
  • the clamping device 5 shows a further device according to the invention.
  • the clamping device 5 is not formed by a clamping ring but by a clamping plate, which in turn has an opening 3 at the head and a groove 7 that projects into an area of the opening 3. through which groove 7 an upper component 2 with a smaller cross section than the opening 3 can be inserted into the area of the opening 3 .
  • FIG. 6 shows a sectional view through a device according to the invention according to FIG. 5 during the implementation of a method according to the invention, the upper component 2 being formed by a stranded wire bundle.
  • FIG. 6 shows a method step in which the upper component 2 formed by the bundle of strands is already fixed to the lower component 1 by the clamping device 5 before the friction stir welding tool, also formed here by the pin 12 and sleeve 11, is moved towards the connecting components 1, 2 was lowered.
  • the bundle of strands forming the upper component 2 protrudes from the opening 3 by a distance beyond the upper side 17 of the clamping device 5 .
  • FIGS. 7a to 7e show examples of components 1, 2 which can be used as upper components 2 in a method according to the invention.
  • the upper component 2 can be formed by a single component with different angular and round cross sections.
  • the upper component 2 can also be formed by a bundle of strands, in which case the bundle of strands can also have both a round and an angular cross section.
  • FIG. 8a to 8f show different process states of a process according to the invention implemented with the device shown in FIG.
  • the upper component 2 is first fixed to the lower component 1 by the clamping device 5 , with the upper component 2 and the lower component 1 being pressed against the machine table 14 .
  • sleeve 11 and pin 12 of the friction stir welding tool are lowered and rotated at the same time in order to heat and plasticize components 1, 2, whereby a plasticization zone is initially formed on the upper component.
  • a dwell time is also provided between the individual method steps can be in order to achieve good stirring of the components 1, 2 to be connected.
  • a dwell time can be provided between the method steps shown in FIGS. 8c and 8d, in which sleeve 11 and pin 12 of the friction stir tool are rotated in the corresponding axial position, optionally with the application of a constant or variable pressure in the axial direction.
  • material can be fed to the plasticizing zone 13, in which the components 1, 2 to be connected are plasticized, for example via the opening 3 or via the groove 7.
  • plasticizing zone 13 in which the components 1, 2 to be connected are plasticized, for example via the opening 3 or via the groove 7.
  • FIG. 9a to 9f show method steps of a further method according to the invention, which is implemented with the device according to the invention shown in FIG.
  • the pin 12 is lowered here and the sleeve 11 in Fig. 9c is lifted and a cavity forms on the side of the pin 12 between the pin 12, the sleeve 11 and the clamping device 5, after which in turn sleeve 11 and pin 12 are moved to the same axial position in order to achieve a flat surface.
  • the composite components 4 each have a lower component 1 formed by a copper plate and an upper component 2 formed by a stranded cable.
  • the composite component 4 has an essentially cylindrical contour in the area of the friction stir weld connection, which corresponds to a diameter 10 of the opening 3 of the clamping device 5 . It can also be seen that an end face in the region of the friction stir weld connection is designed without an end hole, which design is achieved by using the two-part friction stir welding tool formed by pin 12 and sleeve 11 .
  • connection of components 1, 2 by friction stir welding is also possible if one of the components 1, 2 has a very small cross section.
  • a composite component 4 produced in this way can be used in particular for electrical connections, with components 1 , 2 made of different materials or having different melting points also being connected can become.
  • the pin and sleeve of the friction stir welding tool usually have a melting point that is higher than a melting point of the components to be connected.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)

Abstract

L'invention se rapporte à un procédé permettant de raccorder des composants (1, 2) disposés les uns au-dessus des autres au moyen d'un soudage par friction-malaxage, les composants (1, 2) étant serrés à l'aide d'un dispositif de serrage (5) présentant un orifice (3), après quoi les composants (1, 2) étant raccordés au moyen d'un outil de soudage par friction-malaxage faisant saillie à travers l'orifice (3) et tournant autour d'un axe (6). Afin de réaliser le raccordement de composants (1, 2), dont au moins un est formé avec une petite section transversale, selon l'invention, un composant supérieur (2) disposé sur un composant inférieur (1) fait saillie dans l'orifice (3) le long d'une direction d'insertion (8) par le biais d'une rainure sur un côté inférieur (16) du dispositif de serrage (5) et, pendant le soudage par friction-malaxage, celui-ci est fixé au moins partiellement par la rainure. L'invention se rapporte également à un composant composite (4) comprenant un composant inférieur (1) et un composant supérieur (2) qui sont raccordés au moyen d'un soudage par friction-malaxage. L'invention se rapporte en outre à un dispositif permettant de raccorder deux composants (1, 2) au moyen d'un soudage par friction-malaxage, comprenant un outil de soudage par friction-malaxage qui peut tourner autour d'un axe (6) et un dispositif de serrage (5) ayant un orifice (3).
EP22714984.6A 2021-06-29 2022-03-31 Procédé permettant de raccorder des composants disposés les uns au-dessus des autres, composant composite et dispositif permettant de mettre en oeuvre un procédé correspondant Pending EP4363151A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50537/2021A AT525198A1 (de) 2021-06-29 2021-06-29 Verfahren zum Verbinden übereinander angeordneter Bauteile, Verbundbauteil sowie Vorrichtung zur Durchführung eines entsprechenden Verfahrens
PCT/AT2022/060100 WO2023272318A1 (fr) 2021-06-29 2022-03-31 Procédé permettant de raccorder des composants disposés les uns au-dessus des autres, composant composite et dispositif permettant de mettre en œuvre un procédé correspondant

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EP4363151A1 true EP4363151A1 (fr) 2024-05-08

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CN117283343B (zh) * 2023-11-24 2024-02-09 广州德马威工业装备制造有限公司 一种用于磨碟产品生产制造的辅助工装

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DE102006050709B3 (de) * 2006-10-24 2008-05-08 Auto Kabel Managementgesellschaft Mbh Kraftfahrzeugbatterieleitung
FR2974317B1 (fr) * 2011-04-20 2013-04-26 Batscap Sa Dispositif et procede de soudage par friction malaxage d'un ensemble de stockage d'energie electrique
CN104722910A (zh) * 2014-11-24 2015-06-24 临沂大学 一种能减小变形去除飞边的搅拌摩擦连接装置
CN106825906B (zh) * 2017-02-23 2023-02-28 广东省焊接技术研究所（广东省中乌研究院） 一种填丝回填式搅拌摩擦点焊方法及工具
CN111531269A (zh) * 2020-06-09 2020-08-14 东北大学 一种槽型静止轴肩搅拌摩擦加工工具

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