WO2019154925A1 - Procédé et dispositif pour l'introduction d'un élément d'assemblage - Google Patents

Procédé et dispositif pour l'introduction d'un élément d'assemblage Download PDF

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Publication number
WO2019154925A1
WO2019154925A1 PCT/EP2019/053032 EP2019053032W WO2019154925A1 WO 2019154925 A1 WO2019154925 A1 WO 2019154925A1 EP 2019053032 W EP2019053032 W EP 2019053032W WO 2019154925 A1 WO2019154925 A1 WO 2019154925A1
Authority
WO
WIPO (PCT)
Prior art keywords
joining element
heating
workpiece
joint
joining
Prior art date
Application number
PCT/EP2019/053032
Other languages
German (de)
English (en)
Inventor
Vitalij JANZEN
Dominik FRÖHLICH
Original Assignee
Arnold Umformtechnik Gmbh & Co. Kg
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 Arnold Umformtechnik Gmbh & Co. Kg filed Critical Arnold Umformtechnik Gmbh & Co. Kg
Publication of WO2019154925A1 publication Critical patent/WO2019154925A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/02—Riveting procedures
    • B21J15/027—Setting rivets by friction heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/02—Riveting procedures
    • B21J15/025—Setting self-piercing rivets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/02—Riveting procedures
    • B21J15/08—Riveting by applying heat, e.g. to the end parts of the rivets to enable heads to be formed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/10—Riveting machines
    • B21J15/12—Riveting machines with tools or tool parts having a movement additional to the feed movement, e.g. spin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
    • B21J5/063—Friction heat forging
    • B21J5/066—Flow drilling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
    • F16B25/001—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by the material of the body into which the screw is screwed
    • F16B25/0021—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by the material of the body into which the screw is screwed the material being metal, e.g. sheet-metal or aluminium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
    • F16B25/10—Screws performing an additional function to thread-forming, e.g. drill screws or self-piercing screws
    • F16B25/106—Screws performing an additional function to thread-forming, e.g. drill screws or self-piercing screws by means of a self-piercing screw-point, i.e. without removing material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/04—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of riveting

Definitions

  • German Offenlegungsschrift DE 10 2010 024 000 A1 discloses a method for setting non-cutting self-perforating connecting elements in one or more sheets.
  • the sheets are to be heated by electrical energy shortly before the start of the setting process, wherein the heating takes place via an induction coil, which is arranged in the vicinity of a location on the sheet or plates on which the connecting element is placed.
  • the method is suitable for introducing non-cutting self-perforating fasteners in high-strength steel sheets without pre-drilling.
  • joining elements made of steel are particularly suitable for being introduced into workpieces made of high-strength sheet steel.
  • a local heating of the workpiece made of high-strength steel sheet facilitates the penetration of the joining element into the workpiece, but by the bainitic structure or interstitial structure of the joining element this is at the same time so temperature stable that the joining element itself is not or only slightly deformed mechanically during insertion.
  • a joining element with bainite structure or interstage structure facilitates penetration into the workpiece.
  • the inventive method can be applied to unperforated or pre-punched workpieces.
  • connection of at least two workpieces is provided by introducing a flow-hole-forming joining element into the workpieces.
  • the local heating of the joint is effected by means of induction prior to placement of the joining element.
  • the local heating of the joint takes place prior to placement of the joining element by means of laser, ultrasound and / or resistive, ie by introducing an electrical current into the workpiece at the intended joint.
  • just a heating by means of laser has the advantage that on the one hand the workpiece does not have to be contacted and on the other hand, the introduction of the heat energy can be made obliquely to a joint axis.
  • the intended joint can be heated and the joining element can already be placed at a small distance immediately in front of the joint.
  • an induction coil, a heated component, an electrode or even a burner flame can be placed on the joint and before putting the joining element on the joint, the means for heating is moved away again.
  • the workpiece facing the joining element can be locally heated extremely limited, it has been found that a diameter of the heated area between 7 mm and 13 mm is completely sufficient for setting a joining element.
  • a wing element consists of a steel material with bainite structure.
  • the mechanical properties of the high-strength steel sheet are changed by the local heating only very local limited in the area of the intended joint.
  • a device for introducing a joining element into at least one workpiece with the method according to the invention, wherein the device has a device for introducing a joining element and a device for locally heating at least the workpiece facing the joining element at the intended joint.
  • means may be provided for actively and / or passively cooling the device, in particular the hold-down device of the device and other components of the joining system adjoining the heating zone.
  • the hold-down is provided for holding down or pressing together the two workpieces during the joining process.
  • the means for active and / or passive cooling may have cooling rib-like contours on the hold-down device and on other components of the joining system adjoining the heating zone, thereby causing passive cooling.
  • lines for coolant can also be led through the hold-down device and through further components of the joining system adjoining the heating zone in order to effect active cooling.
  • such lines for coolant can of course also be guided around the hold-down or around the hold-down device as well as further components adjoining the heating zone.
  • the combined use of cooling fins in conjunction with the targeted blowing with cooling air is possible.
  • the device for local heating has at least one induction coil, which is movable relative to the device for introducing the joining element.
  • the device for heating is movable perpendicular or obliquely to a joining direction of the joining element.
  • the device for heating is movable parallel to a joining direction of the joining element.
  • the device for heating has an induction coil which surrounds the joining element in an annular manner.
  • FIGS. 13 to 18 different joining elements for use with the invention
  • Fig. 20 shows schematically the introduction of a joining element in two unperforated workpieces to connect these two workpieces together.
  • a flow-hole-forming connecting element 10 as for example also shown in FIG. 16, is placed on the joint of two unperforated workpieces.
  • At least the workpiece 12 facing the joining element is locally heated at the joint.
  • At least one of the two workpieces 12, 14 to be joined consists of high-strength steel sheet with a tensile strength of more than 700 N / mm 2 , in particular more than 1200 N / mm 2 , and less than 2200 N / mm 2 .
  • the joining element 10 is made of steel and has a bainite structure or interstage structure.
  • the joining element 10 After placement on the intended joint, the joining element 10 is pressed in the axial direction of the workpiece 12 and simultaneously set in rotation.
  • the non-threaded tip of the threaded element 10 has a polygonal shape with rounded corners. Due to the axial pressure and the simultaneous rotation of the workpiece 12 and at the same time the underlying workpiece 14 in the region of the joint 16 is further heated, so that the rounded tip of the joining element 10 can penetrate into the workpieces 12, 14. This state is shown on the left in FIG. Simultaneously with the penetration of the threadless tip into the workpieces 12, 14, a draft is generated.
  • the Threaded portion of the joining element 10 As soon as the threaded portion of the joining element 10 penetrates into the workpiece 12, the axial pressure and optionally also the rotational speed of the joining element 10 is reduced. The Threaded portion of the joining element 10 now fear a thread in the previously generated passage of the workpieces 12, 14 a.
  • a first hold-down 22 is placed in Fig. 1 to the right of the joint 16 on the upper workpiece 12 and a second hold-down 24 is placed on the left of the joint 16 on the top of the workpiece 12.
  • the hold-downs 22, 24 the upper workpiece 12 is held and pressed against the lower workpiece 14, for example.
  • a support for the lower workpiece 14 is not shown in the schematic representation of FIG. 1 for the sake of clarity.
  • Both the first hold-down 22 and the second hold-down 24 have at their lower, placed on the workpiece 12 each end a coil 26 and 28, respectively.
  • the two induction coils 26, 28 are current-flowing in the state of FIG. 1 and thereby generate a magnetic field whose field lines are shown schematically in FIG. 1 and designated by the reference numeral 30.
  • the current flow through the induction coils 26, 28 is directed so that the field lines from the first coil 26 through the first workpiece 12 into the second Workpiece and then back into the first workpiece and the second induction coil 28 extend.
  • the joint 16 is heated as well.
  • the course of the magnetic field lines 30 is shown schematically only for clarity. It is crucial that the two workpieces 12, 14 are locally heated in the region of the joint 16 by means of the induction coils 26, 28.
  • the two down holders 22, 24 together form a ring which surrounds the joint 16. At the bottom of this ring then only a single induction coil would be arranged. The magnetic field lines, which are generated by this single induction coil, then run directly through the joint 16 and thus also heat the two workpieces 12, 14 in the region of the joint 16.
  • the joint 16 can be heated by means of a laser light beam 18, which impinges obliquely on the joint 16 in the illustrated embodiment.
  • the joining element 10 is not heated and can already be arranged just above the joint 16.
  • the two workpieces 12, 14 are heated in the region of the joint 16, which is indicated by the warning symbol 32.
  • the joint 16 is heated, wherein the heated area is indicated by lines 34, between which the workpieces 12, 14 are heated.
  • This area, which surrounds the joint 16, has a diameter which corresponds approximately to the distance of the two downholders 22, 24, and a heating of the workpieces 12, 14 in this area is carried out at a temperature between 200 ° C and 500 ° C. The heating takes place advantageously within only one second.
  • FIGS. 4 to 6 show steps of a method according to the invention according to a further embodiment of the invention.
  • a joining element 40 which is shown only schematically as a block, is to be introduced into a workpiece 42.
  • the joining element 40 may be formed, for example, as a punching nut or the like.
  • the joining element 40 is introduced by means of a setting device 44. In the state of FIG. 4, the joining element 40 is still located above the intended joint 46.
  • the setting device has an annular holding-down device 48 which surrounds the joining element 40 and, in the state of FIG. 4, is still located at a short distance from the workpiece 42 ,
  • the joining element 40 is made of steel and has a bainite structure or interstage structure.
  • a device 50 with an induction coil 52 is provided.
  • the device 50 is of annular design and the windings of the coil 52 are parallel to the annular device 50. If the induction coil 52 is traversed by current, a magnetic field 54 is formed, which passes through the workpiece 42 in the region of the joint 46 and thereby heated.
  • the magnetic field 54 is shown only schematically in FIG. 4. The magnetic field lines pass through the coil 52 and heat the workpiece 42 exactly in the region of the joint 46.
  • the device 50 has been moved away laterally from the joint 46 and the joining element 40 is now placed with its underside on top of the workpiece 42.
  • a heated region 56 has now formed, which is only slightly larger than the joining element or the joining element 40.
  • the hold-down 48 has been lowered onto the upper side of the workpiece 42.
  • the joining element 40 can now be set.
  • FIG. 6 shows the state after the setting of the connecting element 40. It can be seen that the joining element 40 now penetrates the workpiece 42 and is now anchored in the workpiece 42 in a manner not shown.
  • a slug 58 has formed, which is now discharged downward.
  • the hold-down 48 is still sitting on the surface of the workpiece 42 and the setting device 44 is still connected to the joining element 40 in connection.
  • the heating device 50 is arranged unchanged at the side of the joint and also at the side of the hold-down 48.
  • the heating of the workpiece 42 in the region 56 to a temperature between 200 ° and 500 ° is sufficient to be able to easily insert the joining element 40 into the workpiece 42 made of high-strength sheet steel.
  • FIGS. 7 to 9 show steps of a method according to the invention according to a further embodiment of the invention.
  • two unperforated workpieces 12, 14 made of high-strength sheet steel are connected to one another by means of a joining element 10, see FIG. 8.
  • the workpieces 12, 14 are pressed against each other by means of a hold-down 60 and the joining element 10 is to be used by means of a screwdriver 62.
  • the screwdriver 62 has a joining bit 64 which is adapted to the drive configuration of the joining element 10.
  • the screwdriver 62 has a through hole which also extends through the joining bit 64 and in which a rod-shaped element 66 is slidably disposed in and opposite to the joining direction.
  • the rod-shaped element 66 can be heated at its lower end.
  • the rod-shaped element 66 is placed with its lower end on the intended joint 66.
  • the rod-shaped element 68 is heated shortly before or immediately after fitting at its lower end and thus heats the two workpieces 12, 14 in the region of the intended joint 66. This is indicated by circular-segment-shaped lines 70, which in the workpieces 12, 14 symbolize penetrating heat energy.
  • the joint 66 can be heated in a locally extremely limited area. As has been stated, this localized area around the intended joint 66 has a diameter of only 7 mm to 13 mm and is heated to a temperature between 200 ° C and 500 ° C within about 1 s.
  • the rod-shaped element 68 may, for example, also be formed as an electrode, in order to effect a flow of current through the joint 66 and thereby a heating of the joint 66.
  • the rod-shaped element can also be designed as an ultrasonic vibrator or rod-shaped inductor to heat the joint 66. After heating the area surrounding the joint 66, the rod-shaped element 68 is retracted again and then, as shown in FIG. 8, the joining element 10 is inserted into the joining bit 64 of the screwdriver 62. The rod-shaped element 68 has been withdrawn so far that the joining element 10 can be inserted into the joining bit 64.
  • the tip of the joining element 10 has already been placed on the joint 66 and can then be introduced into the two workpieces 12, 14 by means of the screwdriver 62 and as explained in connection with FIG.
  • the hold-down 60 remains unchanged in the position in which he presses the two workpieces 12, 14 against each other.
  • FIGS. 10 to 12 show several steps of a method according to the invention according to a further embodiment.
  • a device for heating 70 radially surrounds the setting device 44 and is arranged between the setting device 44 and a hold-down 48.
  • the heating device 70 may include, for example, induction coils to locally heat the workpiece 42.
  • the Device 70 can be displaced relative to the setting device 44 in and against the joining direction.
  • the hold-down 48 surrounds the setting device 44 and the device 70 in the radial direction.
  • the workpiece 42 rests on a base 72.
  • the base 72 may be an anvil, a die, or a support structure for the joining operation.
  • the holding-down device 48, the setting device 44 and also the device 70 for heating can be provided with means not shown in FIG.
  • the means 70 for heating has been lowered so far that it contacts the top of the workpiece 42, if required by the type of heating or the heating mechanism.
  • Induction coils in the device 70 are now energized, so that the workpiece 42 is heated by a magnetic field 74.
  • the joining element 40 has now been introduced into the setting device 44, and the joining element 40 rests with its underside on the upper side of the workpiece 42. An area 76 of the workpiece 42 was heated.
  • the joining element 40 can now be set.
  • the set state of the joining element 40 is shown in FIG. 12.
  • a slug 78 can form, which is discharged downwards.
  • the setting device 44 can be displaced relative to the device 70 in and against the joining direction. This makes it possible first to heat the workpiece 42 locally and then to move the setting device 44 inside the device 70 for heating to set the joining element 40 downwards, in the direction of the workpiece 42.
  • FIGS. 13 to 18 show various joining elements which can be set with the method according to the invention and the device according to the invention or introduced into workpieces made of high-strength sheet steel.
  • Fig. 13 shows a Einpresschraube 80.
  • Fig. 14 shows a threaded bolt 82 which is introduced with a punching section 84 in a workpiece on high-strength steel sheet.
  • Fig. 15 shows a punch nut 86.
  • FIG. 16 shows the already described flow-hole-forming joining element 10.
  • FIG. 17 shows a punch rivet as a semi-hollow punch rivet 88.
  • FIG. 18 shows a further punch rivet as a solid punch rivet 90.
  • FIG. 19 shows a microsection of a joining element with bainite structure or interstage structure.

Abstract

L'invention concerne un procédé pour l'introduction d'un élément d'assemblage dans au moins une pièce constituée d'une tôle d'acier à haute résistance présentant une résistance à la traction supérieure à 700 N/mm2 en particulier supérieure à 1200 N/mm et inférieure à 2200 N/mm2, au moins la pièce tournée vers l'élément d'assemblage avant l'introduction étant chauffée localement avant la mise en place de l'élément d'assemblage au point d'assemblage prévu. Selon ledit procédé, l'élément d'assemblage est constitué d'un matériau à structure de bainite.
PCT/EP2019/053032 2018-02-12 2019-02-07 Procédé et dispositif pour l'introduction d'un élément d'assemblage WO2019154925A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018202140.6A DE102018202140A1 (de) 2018-02-12 2018-02-12 Verfahren und Vorrichtung zum Einbringen eines Fügeelements
DE102018202140.6 2018-02-12

Publications (1)

Publication Number Publication Date
WO2019154925A1 true WO2019154925A1 (fr) 2019-08-15

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Application Number Title Priority Date Filing Date
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DE (1) DE102018202140A1 (fr)
WO (1) WO2019154925A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021121087A1 (de) 2021-08-13 2023-02-16 Tox Pressotechnik Gmbh & Co. Kg Fügewerkzeugeinheit
DE102021121086A1 (de) * 2021-08-13 2023-02-16 Alpha Laser Gmbh Fügewerkzeugeinheit und Werkzeugzange
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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Publication number Priority date Publication date Assignee Title
US3854030A (en) * 1973-09-27 1974-12-10 Gen Dynamics Corp Diffusion bond riveting system
WO1999025510A2 (fr) * 1997-11-17 1999-05-27 Technische Universität Dresden Procede et dispositif pour l'assemblage mecanique assiste par chauffage
DE19630488C2 (de) 1996-07-26 1999-07-08 Boellhoff Gmbh Verfahren und Vorrichtung zum Fügen durch Umformen
US20060024145A1 (en) * 2004-07-29 2006-02-02 Pei-Chung Wang Friction stir rivet and method of joining therewith
DE102010006400A1 (de) * 2010-02-01 2011-08-04 Audi Ag, 85057 Verfahren zur Herstellung einer thermisch unterstützten Nagelverbindung
DE102010024000A1 (de) 2010-06-16 2011-12-22 Ruia Global Fasteners Ag Verfahren und Vorrichtung zum Setzen von spanlos selbstlochformenden Verbindungselementen
CN103600016A (zh) * 2013-11-25 2014-02-26 吉林大学 超高强度钢板之间或与铝合金板的铆接方法
CN104384422B (zh) * 2014-10-15 2016-10-19 上海交通大学 面向超高强度钢与轻金属的自冲铆接装置及方法
US20170216907A1 (en) * 2016-02-03 2017-08-03 Utica Enterprises, Inc. Apparatus and method for mechanically joining advanced high strength steel

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JP4818766B2 (ja) * 2006-03-20 2011-11-16 日産自動車株式会社 セルフピアスリベットの製造方法

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3854030A (en) * 1973-09-27 1974-12-10 Gen Dynamics Corp Diffusion bond riveting system
DE19630488C2 (de) 1996-07-26 1999-07-08 Boellhoff Gmbh Verfahren und Vorrichtung zum Fügen durch Umformen
WO1999025510A2 (fr) * 1997-11-17 1999-05-27 Technische Universität Dresden Procede et dispositif pour l'assemblage mecanique assiste par chauffage
US20060024145A1 (en) * 2004-07-29 2006-02-02 Pei-Chung Wang Friction stir rivet and method of joining therewith
DE102010006400A1 (de) * 2010-02-01 2011-08-04 Audi Ag, 85057 Verfahren zur Herstellung einer thermisch unterstützten Nagelverbindung
DE102010024000A1 (de) 2010-06-16 2011-12-22 Ruia Global Fasteners Ag Verfahren und Vorrichtung zum Setzen von spanlos selbstlochformenden Verbindungselementen
CN103600016A (zh) * 2013-11-25 2014-02-26 吉林大学 超高强度钢板之间或与铝合金板的铆接方法
CN104384422B (zh) * 2014-10-15 2016-10-19 上海交通大学 面向超高强度钢与轻金属的自冲铆接装置及方法
US20170216907A1 (en) * 2016-02-03 2017-08-03 Utica Enterprises, Inc. Apparatus and method for mechanically joining advanced high strength steel

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