WO2016188564A1 - Procédé d'assemblage et dispositif d'assemblage permettant de relier au moins deux éléments au moyen d'une pièce d'assemblage auxiliaire et d'un soudage laser - Google Patents

Procédé d'assemblage et dispositif d'assemblage permettant de relier au moins deux éléments au moyen d'une pièce d'assemblage auxiliaire et d'un soudage laser Download PDF

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Publication number
WO2016188564A1
WO2016188564A1 PCT/EP2015/061574 EP2015061574W WO2016188564A1 WO 2016188564 A1 WO2016188564 A1 WO 2016188564A1 EP 2015061574 W EP2015061574 W EP 2015061574W WO 2016188564 A1 WO2016188564 A1 WO 2016188564A1
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WO
WIPO (PCT)
Prior art keywords
component
joining part
auxiliary joining
auxiliary
joining
Prior art date
Application number
PCT/EP2015/061574
Other languages
German (de)
English (en)
Inventor
Thomas OLFERMANN
Vitalij JANZEN
Gerson Meschut
Marc KIRCHHOFF
Original Assignee
Trumpf Laser- Und Systemtechnik 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 Trumpf Laser- Und Systemtechnik Gmbh filed Critical Trumpf Laser- Und Systemtechnik Gmbh
Priority to PCT/EP2015/061574 priority Critical patent/WO2016188564A1/fr
Priority to DE212015000312.4U priority patent/DE212015000312U1/de
Publication of WO2016188564A1 publication Critical patent/WO2016188564A1/fr

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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
    • B23K26/20—Bonding
    • B23K26/21—Bonding by welding
    • B23K26/24—Seam welding
    • B23K26/244—Overlap seam 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
    • B23K26/323—Bonding taking account of the properties of the material involved involving parts made of dissimilar metallic material
    • 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
    • B23K26/324—Bonding taking account of the properties of the material involved involving non-metallic parts
    • 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
    • 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
    • B23K2103/16—Composite materials, e.g. fibre reinforced
    • 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
    • B23K2103/18—Dissimilar materials
    • 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
    • B23K2103/18—Dissimilar materials
    • B23K2103/20—Ferrous alloys and aluminium or alloys thereof

Definitions

  • the invention relates to a joining method for joining at least two components by means of laser welding using an auxiliary joining part. Furthermore, the invention relates to a joining device for connecting at least two components with an insertion device for an auxiliary joining part and with a laser welding device.
  • composite components in particular of dissimilar materials
  • the use of composite components is becoming increasingly important in many industrial sectors. For example, due to the requirement for car makers to reduce the CO 2 emission of their vehicles, the interest in composite components is increasing. Thus, by using composite components in the body construction, a weight reduction can be achieved, whereby the mechanical properties of the components may even improve by the composite construction.
  • a special role is played by composite components made of steel and aluminum alloys. In car body construction and in other fields of application, composite components with a steel and a (fiber-reinforced) plastic component are also of interest. But for the successful use of composite components, in particular the joining process of dissimilar components is a critical issue.
  • Another suitable joining method is resistance electrical welding using an auxiliary joining part.
  • DE 42 37 361 C2 describes a method in which an auxiliary joining part made of steel is introduced into an aluminum sheet. A shank end of the auxiliary joining part has a cutting edge, by means of which a lead-through opening is made in the aluminum during insertion of the auxiliary joining part. After the auxiliary joining part has been inserted, the thus prepared aluminum sheet is applied to a steel sheet, and the shank of the auxiliary joining part made of steel is bonded to the steel sheet by means of resistance-electric welding.
  • WO 2012/041515 A1 likewise discloses a joining method of two components, which consist of mutually different materials which are not thermally attachable in a welding process.
  • a self-punching Auxiliary joining part in the form of a rivet is introduced into a first component.
  • the rivet is deformed to create a positive connection with the first component.
  • the first component with the introduced rivet is applied to the second component and the rivet is connected to the second component by means of resistance-electric welding.
  • resistance-electric welding laser welding is mentioned, but without specifying details of the joining process using laser welding.
  • the invention has set itself the task of providing an improved joining method for joining two components by means of an auxiliary joining part, which meets in particular the requirements of an industrial mass production.
  • the object is achieved by a joining method with the features of claim 1 and by a joining device with the features of claim 12.
  • an auxiliary joining part in particular a rivet, is introduced into at least one first component to form at least one positive and / or non-positive connection.
  • the introduced auxiliary joining part and at least one second component are welded together by means of a laser beam by melting the auxiliary joining part from the side remote from the second component to the second component and / or the second component is melted from the side facing away from the auxiliary joining part to the auxiliary joining part.
  • the joining method according to the invention is not limited to the joining of two components. So can three, four or more Components, in particular sheets, are interconnected by means of one or more auxiliary joining parts.
  • the joining method according to the invention is a combined mechanical-thermal joining method.
  • the auxiliary joining part is connected substantially mechanically with the first component and thermally with the second component.
  • the auxiliary joining part thus serves as a connecting link between the first and second component.
  • the material of the auxiliary joining part can be optimized for the joining task.
  • the auxiliary joining part must be able to be connected directly to the second component in a materially bonded manner, in particular to be welded thereto. Therefore, it is advantageous if the auxiliary joining part at least partially consists of a material similar to the second component (and therefore suitable for welding), or at least the area to be welded to the second component should consist of a same type (weldable) material.
  • the auxiliary joining part must be suitable in terms of material and shape to assume a sufficiently strong positive and / or non-positive connection with the first component.
  • Particularly preferred in the case of a multiplicity of typical composite materials is an auxiliary joining part which at least partially consists of a steel alloy.
  • the joining method is used for joining two components that can not or only very poorly welded directly to each other.
  • a first component made of a light metal alloy, in particular aluminum or magnesium alloy, or a plastic, in particular of a (carbon) fiber reinforced plastic and a second component made of a steel alloy, such as a manganese Boron steel alloy (eg type 22MnB5) to call.
  • a second component made of a steel alloy such as a manganese Boron steel alloy (eg type 22MnB5) to call.
  • material combinations of joining partners in which the first component is made of a (carbon) fiber-reinforced plastic and the second component is made of a light metal alloy, in particular aluminum or magnesium alloy are formed.
  • the auxiliary joining part is at least partially (namely in the part to be welded to the second component) also made of a light metal alloy, in particular of an aluminum or magnesium alloy.
  • the joining method according to the invention is characterized by the use of a laser beam, which represents a particularly good controllable and controllable energy source for generating the welded joint between the auxiliary joining part and the second component.
  • a laser beam represents a particularly good controllable and controllable energy source for generating the welded joint between the auxiliary joining part and the second component.
  • Very short process times can be achieved, which can lead to an economically advantageous shortening of the cycle time.
  • a thermal impairment of areas of the components adjacent to the joint is significantly reduced. As a result, for example, the damage to joints can be reduced as adhesives can be reduced, which can be located between the components to be joined.
  • laser welding is characterized by high flexibility.
  • the laser beam can react flexibly to a wide variety of spatial requirements. Even on joints that are virtually inaccessible to a welding electrode, a laser beam can be easily steered.
  • parameters of the welding process such.
  • As the size and shape of the welded joint optimally adjustable for the respective joining task. thanks to the Welding process, which is a contactless and therefore powerless joining process, reduces the mechanical stress on the components.
  • Another advantage of the joining method according to the invention is that the laser welding process can be performed such that the welded connection can be subsequently detected from the outside.
  • the auxiliary joining part is melted from the side facing away from the second component, and / or the second component is melted from the side facing away from the auxiliary joining part. Consequently, later on the auxiliary joining part and / or on the second component outside the welds can be seen.
  • This allows a simple optical check of the joint to at least ensure that a weld has been performed.
  • other welding methods such as resistance-electric welding, the welded connection can generally not be optically checked from the outside.
  • auxiliary joining part is melted from the side facing away from the second component, a zone without visible heat influence can remain on the side of the second component facing away from the auxiliary joining part, so that there z. B. unobstructed viewing areas of the finished composites can be provided.
  • auxiliary joining part and a second component are welded together by means of a laser beam by the auxiliary joining part is melted from the side facing away from the second component to the second component, is also advantageous if the side of the second component, the facing away from the first component, is difficult to access or if the second component is too thick at the joint to be melted to the auxiliary joining part.
  • this process variant advantageously requires only one-sided accessibility.
  • an auxiliary joining part is used which has at least a head part and a shaft.
  • the auxiliary joining part designed in this way is introduced into the first component in such a way that the head part engages behind that side of the first component which, in the case of connected components, faces away from the second component, and the shaft protrudes through the first component. Subsequently, the shaft and the second component are welded together. In this sense, the auxiliary joining part is inserted into a passage opening in the first component, which is at least partially narrower than the head part of the auxiliary joining part.
  • a part of the auxiliary joining part lies with the formation of a rear grip on the outside, ie the side facing away from the second component (later). This rear handle forms in a simple manner a firm, positive connection of the auxiliary joining part with the first component in the insertion direction of the auxiliary joining part.
  • the head of the auxiliary joining part may protrude to form the rear grip relative to the first component.
  • the head of the auxiliary joining part can also be completely sunk in the passage opening.
  • the rear grip is then formed, for example, in the region of a (conical) extension of the passage opening.
  • the head part can be provided with one or more teeth facing the first component, which dig when inserted into the first component. It is also conceivable that the shank of the auxiliary joining part is radially compressed during insertion or by a subsequent forming in the passage openings of the first component. This substantially non-positive additional connection between the auxiliary joining part and the first component can serve to prevent the auxiliary joining part from falling out of the first component before it is welded to the second component.
  • the auxiliary joining part has a central recess.
  • the central recess may be arranged on the part of the second component facing the end of the auxiliary joining part.
  • material of the first component can be accommodated in the recess, which is particularly the waste-free forms of the through hole in the first component by the auxiliary joining part is advantageous.
  • the central recess can also be arranged on the part of the second component facing away from the end of the auxiliary joining part, wherein the auxiliary joining part is welded at the bottom of the central recess with the second component.
  • an auxiliary joining part in the form of a hollow rivet can advantageously be used.
  • the recess results in a material-saving process variant.
  • Particularly advantageous is the use of a hollow auxiliary joining part when the welding is introduced from the side of the auxiliary joining part.
  • the height of the portion of the auxiliary joining part, which must be melted until the melting zone reaches the second component, can be significantly reduced in this way.
  • the amount or amount of material can be adjusted so that a sufficiently strong welded joint is formed and at the same time, in order to achieve short process times and the lowest possible energy input, as little material as possible has to be melted.
  • the auxiliary joining part is plastically deformed when introduced into the first component.
  • the auxiliary joining part can be generated by the plastic deformation, the positive and / or non-positive connection between the auxiliary joining part and the first component.
  • the auxiliary joining part can adapt to the geometry of the first component.
  • the auxiliary joining part can also be plastically deformed in the region of the welded connection to be formed with the second component, so that a favorable contact zone is created between the auxiliary joining part and the second component.
  • auxiliary joining part causes a deformation of the first component when introduced into the first component.
  • a passage opening is preferably at least partially introduced into the first component by means of the auxiliary joining part, through which the auxiliary joining part is guided in the case of connected components to the welded connection with the second component.
  • the passage opening is inevitable in this way the geometry of the auxiliary joining part matched or the auxiliary joining part is optimally fitted into the self-shaped through hole. If the through hole is completely formed by the auxiliary joining part, even a separate forming or punching operation with an additional tool can be dispensed with.
  • the first component may already have a passage opening for the auxiliary joining part before insertion.
  • the passage opening may have been formed in different ways, for. B. during prototyping of the first component or by drilling or punching.
  • a disadvantage of the joining method with pre-punched first component is that the auxiliary joining part has to be positioned for insertion exactly to the pre-punched passage opening. This is not necessary when using a self-forming or self-piercing auxiliary joining part.
  • no material to be removed from the first component is produced during the at least partial introduction of the passage opening.
  • the auxiliary joining part itself is shaped in such a way that it can produce a passage opening in the first component, without having to remove material from the joining zone, which otherwise would hinder the subsequent welding process.
  • the shaping of the passage opening is preferably facilitated by the first component being softened by means of a laser beam, preferably the laser beam for welding the auxiliary joining part and the second component, in the region in which the passage opening is introduced.
  • the auxiliary joining part is introduced into the first component, when the first and second component are already arranged in the position to be joined to each other. This can lead to a shortening of the process times. In addition, the risk of slipping or falling out of the auxiliary joining part is eliminated in otherwise required application of the second component. Such a procedure is favored if when using a self-forming or self-piercing auxiliary joining part no material to be removed arises, otherwise the already existing second component could hinder the removal of the separated material.
  • the laser welding device by means of which the auxiliary joining part and the second component are welded together, is already positioned relative to the components before the introduction of the auxiliary joining part into the first component for the welding operation.
  • the welding operation starts immediately after the insertion of the auxiliary joining part without intermediate positioning of the laser welding device and the components to each other.
  • auxiliary joining part and the first component in addition to the positive and / or non-positive connection cohesively, preferably by laser welding, are interconnected.
  • auxiliary joining part and the second component are welded together only point-to-each other. If higher demands are placed on the strength or resistance of the welded connection, a method variant is preferred in which the auxiliary joining part and the second component are welded together by changing the relative focus position of the laser beam. In this way, a line-shaped or flat welded connection can be produced. Other geometric shapes, such as rings, are also conceivable.
  • the parameters of the laser processing such. As focus, impulse and caustics, are varied to achieve an optimal processing result.
  • a particularly good welded joint can be produced by the so-called wobble of the laser beam (oscillating motion) during the welding process.
  • the focal position during the welding process with a relatively small amplitude and a relatively high frequency is reciprocated.
  • the wobble can be used to soften the melt in difficult-to-weld materials, thereby stabilizing the process.
  • the invention is realized by a joining device for connecting at least two components, which has an insertion device, by means of which an auxiliary joining part, in particular a rivet, can be introduced into at least one first component to form at least one positive and / or non-positive connection.
  • the joining device according to the invention has a laser welding device by means of which the introduced auxiliary joining part and a second component are welded together, wherein by means of the laser welding device, a laser beam on the side facing away from the second component of the auxiliary joining part is steerable and / or a laser beam on the auxiliary joining part remote side of the second component is steerable.
  • the joining device according to the invention is in each case suitable for carrying out the advantageous exemplary embodiments of the joining method according to the invention described above and below.
  • a joining device which can be used particularly advantageously in modern production plants, for example with industrial robots, results according to a particularly preferred embodiment in that the laser welding and the insertion device are mounted on a common support for joint positioning relative to the components to be joined.
  • a combined laser welding / insertion forceps which is preferably mounted on an industrial robot and can be handled by this.
  • a particularly compactly constructed joining device results from the fact that the laser beam welding and the insertion device for fixing the components have at least one common component holder.
  • the joining device has at least two component holders which lie on opposite sides Pages of the abutting components can be arranged. If necessary, gaps between the joining partners can be reduced by means of the component holder or the component holder.
  • both component holders are designed for fixing the components both during insertion of the auxiliary joining part and during welding of the auxiliary joining part to the second component.
  • a laser beam for welding the auxiliary joining part and the second component through the inserting device on the auxiliary joining part is steerable.
  • a laser beam for welding auxiliary joining part and second component through a component holder can be guided on the second component, wherein the component holder can be arranged on that side of the components, which is opposite to the inserting device.
  • the welding operation can begin immediately after the insertion of the auxiliary joining part. If necessary, the laser beam even the introduction by z. B. support heating of the first component.
  • an embodiment is particularly advantageous in which by means of the laser welding device, a laser beam along an incident axis can be steered onto the components, which coincides with an insertion axis of the insertion device.
  • Radiation protection is generally a critical issue in laser processing.
  • the device has radiation protection devices which are arranged in the immediate vicinity of the processing site.
  • at least one component holder by means of which at least one component can be fixed during insertion of the auxiliary joining part, at the same time forms a radiation protection device of the laser welding device.
  • a laser welding device which has scanner optics in order to guide the laser beam to the components for welding has proved successful in practice.
  • a laser beam of a solid-state laser is used.
  • FIGS. 1 a - d show various states in a joining method according to a first example
  • FIGS. 2 a - d show different states in a joining method according to a second example
  • FIG. 3 and 4 show the conditions during the welding process of a joining method according to a third and fourth example
  • FIG. 5 shows a joining device for carrying out a joining method according to the third example according to FIG. 3, a joining device for carrying out a joining method according to the first example according to FIGS. 1 a - d and a joining device for carrying out a joining method according to the second example according to FIGS. 2 a - d.
  • FIGS. 1 a - d show four different states during a joining process for joining two components 1, 2 with the aid of an auxiliary joining part 3.
  • the first component 1 is, for example, an aluminum alloy component or a plastic component which especially carbon fiber reinforced.
  • the second component 2 is, for example, a high-strength steel component. Because of this material combination, the two components 1, 2 can not be welded with sufficiently high quality by means of conventional methods.
  • the auxiliary joining part 3 is used, which in the present case consists, for example, of a steel alloy which is readily weldable to the steel alloy of the second component.
  • the auxiliary joining part 3 is rivet-shaped and has a tapered to a tip 5 shaft 6 and a head part 7 with a circumferential collar 8 on its underside.
  • a circumferential groove is formed, which can accommodate 3 material of the first component 1 when introducing the auxiliary joining part.
  • FIG. 1a shows the states at the beginning of the joining process.
  • the joining device 10 is positioned at the joint of the two components 1, 2.
  • the components 1, 2 are already arranged in the position to be connected to each other.
  • a respective component holder 11, 12 for fixing the components 1, 2 is applied.
  • the auxiliary joining part 3 is now introduced into the first component 1.
  • a pressure element in the form of a hollow punch 13 of an insertion device 14 of the joining device 10 presses the auxiliary joining part 3 into the first component 1.
  • the hollow punch 13 is provided with a central passage opening, through which a vacuum can be applied to hold the auxiliary joining part 3 to the hollow die 13.
  • the auxiliary joining part 3 is introduced into the first component 1 such that the head part 7 engages behind that side 15 of the first component 1 which faces away from the second component 2.
  • the collar 8 engages in the region of the rear grip in the surface of the first component. 1
  • the shaft 6 of the auxiliary joining part 3 projects through a through opening 16 through the first component 1 to the second component 2.
  • the first component 1 is not pre-punched in the example shown.
  • the passage opening 16 is introduced by means of the auxiliary joining part 3 itself. Consequently, the auxiliary joining part 3 is an auxiliary joining part 3 self-forming or cutting the through-hole 16.
  • the auxiliary joining part 3 is even shaped such that when introducing the through hole 16 no material to be discharged of the first component 1 is formed.
  • the auxiliary joining part 3 Due to the engaging behind the head part 7, the auxiliary joining part 3 is positively connected in the insertion direction 17 with the first component 1.
  • the shaft 6 in the downwardly tapering through opening 16 forms a positive connection in the insertion direction 17.
  • the auxiliary joining part 3 and the second component 2 are welded together by means of a laser welding device 18 not shown in detail (FIG. 1 c).
  • the laser welding device 18 was already positioned relative to the components 1, 2 before the introduction of the auxiliary joining part 3 into the first component 1 for the welding process.
  • a laser beam 19 along an incident axis 20 to the components 1, 2 is steerable, which coincides with an insertion axis 20 of the insertion device 14. A positioning process between the introduction and the welding is therefore not required.
  • the component holder 1 1, 12 can remain applied to the components 1, 2.
  • the second component 2 is melted from the side 21 facing away from the auxiliary joining part 3 to the auxiliary joining part 3 until the shaft 6 of the auxiliary joining part 3 and the second component 2 are welded together.
  • the laser beam 19 is directed onto the second component 2 for welding the auxiliary joining part 3 and the second component 2 through the component holder 12.
  • the component holder 12 forms a radiation protection device 22 of the laser welding device 18.
  • the auxiliary joining part 3 and the second component 2 are welded together by changing the focus position of the laser beam 19, so that a flat welded joint 23 is produced.
  • the change in the focal position is preferably effected by a scanner optics, not shown, of the laser welding device 18.
  • the auxiliary joining part 3 and the second component 2 are now firmly connected to each other via the welded joint 23.
  • the component composite is held together by means of the component holder 1 1, 12, and the punch 13.
  • FIGS. 2a-d show the relationships in a second example of a joining method of two components 1, 2 with the aid of an auxiliary joining part 3, which is positively and / or non-positively connected to the first component 1 and then laser welded to the second component 2 ,
  • the method according to FIGS. 2 ad corresponds to the method according to FIGS. 1 a-d, so that reference can be made to the above explanations, and only the differences will be explained below.
  • the auxiliary joining part 3 according to FIGS. 2 a-d has a central recess 25.
  • the auxiliary joining part 3 is in particular formed like a hollow rivet. Furthermore, during the welding process, the auxiliary joining part 3 is melted from the side 26 facing away from the second component 2 to the second component 2 (FIG. 2c). For this purpose, by means of the laser welding device 18, a laser beam 19 through the insertion device 14 through, in particular by the punch 13, on the auxiliary joining part 3 steerable.
  • the auxiliary joining part 3 is welded to the bottom 27 of the central recess 25 with the second component 2. Thanks to the recess 25 reduces the réelleschmelzende material of the auxiliary joining part. 3
  • FIG. 3 shows the conditions during the welding process.
  • the second component 2 is melted from the auxiliary joining part 3 side facing away 15 to the auxiliary joining part 3 and the shaft 6 of the auxiliary joining part 3 welded to the second component 2.
  • FIG. 3 shows a deflection mirror 28 of a scanner optics of the laser welding device 18, which is not otherwise shown.
  • the mirror 28 may be mounted on one or two axes, so that the auxiliary joining part 3 and the second component 2 can be welded together by changing the focus position of the laser beam 19. Again, if necessary, the so-called wobble can be used.
  • a further example of a joining method will be explained with reference to FIG.
  • the auxiliary joining part 3 is formed with a central recess 25 in the shape of a rivet. During the welding process, the laser beam 19 is directed to the bottom 27 of the central recess 25 and the auxiliary joining part 3 is melted to the second component 2 and welded thereto.
  • FIG. 5 shows a joining device 10 for carrying out a joining method according to the example shown in FIG.
  • the joining device 10 has an insertion device 14, by means of which the auxiliary joining part 3 can be introduced into the first component 1, and a laser welding device 18, by means of which the inserted auxiliary joining part 3 and a second component 2 can be welded together.
  • the laser welding and inserting devices 18, 14 are mounted on a common carrier 30 for joint positioning relative to the components 1, 2 to be connected.
  • the joining device 10 comprises two component holders 1 1, 12 which are movably mounted on the common carrier 30.
  • the insertion device 14 comprises a force-controlled and / or travel-controlled punch 13 for inserting the auxiliary joining part 3 into the first component 1, which is integrated in the component holder 11.
  • the laser welding device 18 is arranged on the side of the opposite component holder 12, which also serves as a radiation protection device 22 in addition to fixing the components 1, 2.
  • the laser welding device 18 has a device 31 attached to the component holder 12 for supplying process gas.
  • a scanner optics (not shown) is provided, by means of which a laser beam 19 can be guided on the side 21 of the second component 2 facing away from the auxiliary joining part 3 through the component holder 12 in order to weld the auxiliary joining part 3 and the second component 2 together.
  • a laser beam 19 can be guided along an incident axis 20 onto the components 1, 2, which coincides with an insertion axis 20 of the insertion device 14.
  • FIG. 6 shows a joining device 10 for carrying out a joining method according to the example shown in FIG.
  • the joining device 10 likewise has an insertion device 14 and a laser welding device 18.
  • the laser welding and the insertion device 18, 14 are mounted on a common support plate 32.
  • the support plate 32 has not shown receptacles for connection to an industrial robot.
  • the insertion device 14 is integrated in a component holder 1 1 and fixed by a forceps arm 33 force and or remotely movable on the support plate 32.
  • a forceps arm 33 force and or remotely movable on the support plate 32 To drive the gun arm 33 is a mounted on the housing 34 of the laser welding device 18 drive unit 35.
  • the gun arm 33rd has an integrated water cooling (not shown) for cooling the laser optics.
  • the laser welding device 18 is provided with a device 36 for supplying process gas and for radiation protection.
  • a scanner optics (not shown further) is provided, by means of which a laser beam 19 can be steered onto the side 21 of the second component 2 facing away from the auxiliary joining part 3.
  • a laser beam 19 can be guided along an incident axis 20 onto the components 1, 2, which coincides with an insertion axis 20 of the insertion device 14.
  • FIG. 7 shows a joining device 10 for carrying out a joining method according to the example shown in FIG.
  • the joining device 10 also has an insertion device 14 and a laser welding device 18, which are attached to a common support plate 32, which has not shown receptacles for connection to an industrial robot.
  • the insertion 14 and the laser welding device 18 are arranged in a combined machining head 37, which is movably and movably mounted on a base housing 38 which is fixedly mounted on the support plate 32.
  • the combined processing head 37 is also provided with a magazine 39 for auxiliary joining parts 3. From the magazine 39, the auxiliary joining parts 3 are individually fed to the insertion device 14. For force and / or path-controlled insertion or pressing in of an auxiliary joining part 3, the machining head 37 is moved, wherein a punch 13 presses the auxiliary joining part 3 into the first component 1.
  • the stamp 13 is integrated in a component holder 1 1, which also forms a radiation protection device 22 of the laser welding device 18.
  • the joining device 10 has a gun arm 33 with a component holder 12 opposite the machining head 37.
  • the gun arm 33 is mounted by means of a drive unit 35 in a force-controlled and / or travel-controlled manner in the base housing 38.
  • a laser beam 19 along an incident axis 20 to the components 1, 2 steerable which coincides with an insertion axis 20 of the insertion device 14.
  • a laser beam 19 for welding the auxiliary joining part 3 and the second component 2 through the insertion device 14 to the auxiliary joining part 3 can be guided by means of the laser welding device 18.
  • a laser beam of a solid-state laser is preferably used.
  • a diode-pumped disk laser is used.
  • An example is the TruDisk 4001 from Trumpf Laser GmbH. It has an average power of up to 750 watts. The wavelength is 1030 ⁇ at a beam quality of 4 mm-mrad.
  • the TruDiode 4006 Fa. Trumpf Laser GmbH could be used.
  • the auxiliary joining part 3 is plastically deformed during introduction into the first component 1.
  • the auxiliary joining part 3 can be plastically deformed in the region of the weld joint 23 to be formed with the second component 2, in order to ensure good contact with the second component 2.
  • the plastic deformation can at least support the formation of a positive and / or non-positive connection with the first and / or second component 1, 2.
  • the auxiliary joining part 3 In order to reduce the force required for introducing the passage opening 16 into the first component 1 by the auxiliary joining part 3, it may be advantageous to soften the first component 1 by means of a laser beam 19 in the region in which the passage opening 16 is introduced. In some circumstances, an additional cohesive attachment of the auxiliary joining part 3 to the first component 1 may be useful. Preferably, this can be introduced by means of laser welding.
  • the described joining methods are not limited to the joining of two components. It is quite possible that three or more components are on the bland ways become interconnected.
  • a plurality of non-weldable or poorly welded components can at the same time be positively and / or positively connected to an auxiliary joining part, and then the auxiliary joining part can be welded to a weldable component.

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Laser Beam Processing (AREA)

Abstract

L'invention concerne un procédé d'assemblage permettant de relier au moins deux éléments (1, 2) par soudage laser, selon lequel une pièce d'assemblage auxiliaire (3), en particulier un écrou, est introduite dans au moins un premier élément (1) avec formation d'au moins une liaison par coopération de formes et/ou à force, la pièce d'assemblage auxiliaire (3) introduite et au moins un deuxième élément (2) étant soudés l'un à l'autre au moyen d'un faisceau laser (19). Avec le procédé de soudage laser, la pièce d'assemblage auxiliaire (3) est fondue de la face opposée au deuxième élément (2) au deuxième élément (2) et/ou le deuxième élément (2) est fondu de la face (21) opposée à la pièce d'assemblage auxiliaire (3) à la pièce d'assemblage auxiliaire (3). L'invention concerne en outre un dispositif d'assemblage (10) permettant de mettre en œuvre un procédé d'assemblage de ce type.
PCT/EP2015/061574 2015-05-26 2015-05-26 Procédé d'assemblage et dispositif d'assemblage permettant de relier au moins deux éléments au moyen d'une pièce d'assemblage auxiliaire et d'un soudage laser WO2016188564A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/EP2015/061574 WO2016188564A1 (fr) 2015-05-26 2015-05-26 Procédé d'assemblage et dispositif d'assemblage permettant de relier au moins deux éléments au moyen d'une pièce d'assemblage auxiliaire et d'un soudage laser
DE212015000312.4U DE212015000312U1 (de) 2015-05-26 2015-05-26 Fügevorrichtung zum Verbinden von wenigstens zwei Bauteilen mittels eines Hilfsfügeteiles und Laserschweissens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2015/061574 WO2016188564A1 (fr) 2015-05-26 2015-05-26 Procédé d'assemblage et dispositif d'assemblage permettant de relier au moins deux éléments au moyen d'une pièce d'assemblage auxiliaire et d'un soudage laser

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WO2016188564A1 true WO2016188564A1 (fr) 2016-12-01

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Cited By (1)

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WO2020100426A1 (fr) * 2018-11-14 2020-05-22 株式会社神戸製鋼所 Procédé de soudage destiné à l'assemblage de matériaux différents, élément auxiliaire d'assemblage et joint soudé de matériaux différents

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DE102017120051B4 (de) * 2017-08-31 2023-01-12 Baosteel Tailored Blanks Gmbh Verfahren zum Laserstrahlschweißen eines oder mehrerer Stahlbleche aus presshärtbarem Mangan-Borstahl
DE102019102872A1 (de) * 2019-02-06 2020-08-06 Bayerische Motoren Werke Aktiengesellschaft Fügevorrichtung zum Fügen eines Bauteils mit wenigstens einem Element sowie Verfahren zum Herstellen einer Fügevorrichtung
DE102021121087A1 (de) 2021-08-13 2023-02-16 Tox Pressotechnik Gmbh & Co. Kg Fügewerkzeugeinheit
DE102021121090A1 (de) 2021-08-13 2023-02-16 Tox Pressotechnik Gmbh & Co. Kg Fügewerkzeugeinheit
DE102021121084A1 (de) 2021-08-13 2023-02-16 Alpha Laser Gmbh Fügewerkzeugeinheit, Werkzeugzange und Fügevorgang

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DE4237361C2 (de) 1992-11-05 1996-09-19 Daimler Benz Ag Verbindungs-Hilfsteil für das widerstandselektrische Verschweißen von Aluminiumblech auf Stahl und Verfahren zum Anbringen desselben
KR20090107134A (ko) * 2008-04-08 2009-10-13 현대자동차주식회사 이종재료 접합용 스폿 리벳팅 장치
US20100018027A1 (en) * 2008-07-28 2010-01-28 Robin Stevenson Method of joining with self-piercing rivet and assembly
WO2012041515A1 (fr) 2010-09-30 2012-04-05 Benteler Automobiltechnik Gmbh Procédés et outil d'assemblage pour assembler deux éléments métalliques par rivetage et soudage
CN103600017A (zh) * 2013-11-25 2014-02-26 吉林大学 超高强钢板之间或与铝合金板的自冲铆接装置
JP2014226698A (ja) * 2013-05-22 2014-12-08 株式会社神戸製鋼所 リベット接合構造体及びその製造方法

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JPH05174940A (ja) * 1991-12-18 1993-07-13 Yazaki Corp 電気接続片のレーザ溶接方法及びこの方法に使用する電気接続片
DE4237361C2 (de) 1992-11-05 1996-09-19 Daimler Benz Ag Verbindungs-Hilfsteil für das widerstandselektrische Verschweißen von Aluminiumblech auf Stahl und Verfahren zum Anbringen desselben
KR20090107134A (ko) * 2008-04-08 2009-10-13 현대자동차주식회사 이종재료 접합용 스폿 리벳팅 장치
US20100018027A1 (en) * 2008-07-28 2010-01-28 Robin Stevenson Method of joining with self-piercing rivet and assembly
WO2012041515A1 (fr) 2010-09-30 2012-04-05 Benteler Automobiltechnik Gmbh Procédés et outil d'assemblage pour assembler deux éléments métalliques par rivetage et soudage
JP2014226698A (ja) * 2013-05-22 2014-12-08 株式会社神戸製鋼所 リベット接合構造体及びその製造方法
CN103600017A (zh) * 2013-11-25 2014-02-26 吉林大学 超高强钢板之间或与铝合金板的自冲铆接装置

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Publication number Priority date Publication date Assignee Title
WO2020100426A1 (fr) * 2018-11-14 2020-05-22 株式会社神戸製鋼所 Procédé de soudage destiné à l'assemblage de matériaux différents, élément auxiliaire d'assemblage et joint soudé de matériaux différents
JP2020078826A (ja) * 2018-11-14 2020-05-28 株式会社神戸製鋼所 異材接合用溶接法、接合補助部材、及び、異材溶接継手
JP7017501B2 (ja) 2018-11-14 2022-02-08 株式会社神戸製鋼所 異材接合用溶接法、接合補助部材、及び、異材溶接継手

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