WO2022207165A1 - Stanznietverbindung - Google Patents
Stanznietverbindung Download PDFInfo
- Publication number
- WO2022207165A1 WO2022207165A1 PCT/EP2022/052819 EP2022052819W WO2022207165A1 WO 2022207165 A1 WO2022207165 A1 WO 2022207165A1 EP 2022052819 W EP2022052819 W EP 2022052819W WO 2022207165 A1 WO2022207165 A1 WO 2022207165A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rivet
- setting
- joining partner
- diameter
- hole
- Prior art date
Links
- 238000005304 joining Methods 0.000 claims abstract description 83
- 238000000034 method Methods 0.000 claims abstract description 27
- 238000005520 cutting process Methods 0.000 claims abstract description 12
- 238000003892 spreading Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 27
- 230000008719 thickening Effects 0.000 claims description 16
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 9
- 230000004323 axial length Effects 0.000 claims description 9
- 238000001746 injection moulding Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000011343 solid material Substances 0.000 claims description 4
- 238000003754 machining Methods 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims description 2
- 238000010008 shearing Methods 0.000 abstract 1
- 238000007373 indentation Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000002028 premature Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
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
- B21J15/025—Setting self-piercing rivets
-
- 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
-
- 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
- F16B19/00—Bolts without screw-thread; Pins, including deformable elements; Rivets
- F16B19/04—Rivets; Spigots or the like fastened by riveting
- F16B19/08—Hollow rivets; Multi-part rivets
- F16B19/086—Self-piercing rivets
Definitions
- the invention relates to a punch rivet connection according to the preamble of claim 1, a semi-tubular punch rivet for such a punch rivet connection according to claim 9 and a method according to claim 10.
- a stamped rivet connection of the generic type has at least two joining partners, which are connected to one another in a setting process.
- a semi-tubular punch rivet is driven in a setting direction with its rivet foot through the joining partner on the setting side into the joining partner on the die side. This is done while maintaining a residual base thickness in the die-side joining partner and with the rivet foot expanding. This results in an undercut between a rivet foot cutting edge and the rivet head of the semi-hollow punch rivet, between which the joining partners are clamped.
- Such a punch rivet connection is used in particular for mixed construction connections (e.g. mixed aluminium-steel construction).
- An aluminum die-cast part is problematic as a joining partner in such a punch rivet connection insofar as it is susceptible to shear stresses aligned transversely to the setting direction, which are generated during the setting process when the semi-hollow punch rivet is driven into the joining partner. Such shear stresses can result in stress cracks in the aluminum die-cast part, which can lead to premature component failure.
- DE 102011 054358 A1 discloses a forming process and a device for carrying out the process.
- a punch rivet and a punch riveting method are known from DE 102013020 504 A1.
- From the DE 10 2019 102 383 A1 discloses a semi-hollow punch rivet for a punch rivet connection.
- DE 102015 014 941 A1 discloses a method for producing a connection between a functional element and a plate-shaped component.
- a rivet that can be used as a decorative rivet and/or connecting rivet is known from DE 203 03 961 U1.
- the object of the invention is to provide a punch rivet connection whose functionality is increased in a simple manner compared to the prior art and can also be used in particular with aluminum die-cast parts as a joining partner.
- the invention relates to a punch rivet connection with at least two joining partners, which can be connected to one another in a setting process.
- a semi-tubular punch rivet is driven in one setting direction with its rivet foot through the joining partner on the setting side into the joining partner on the die side. This is done while maintaining a residual base thickness in the die-side joining partner and with the rivet foot being spread open.
- the joining part on the setting side has a pilot hole in the still undeformed state.
- the semi-tubular punch rivet is guided through the pre-hole essentially without stress and is driven into the die-side joining partner, which is pre-hole-free in the non-deformed state.
- the joining partner on the setting side viewed in the setting direction, is clamped under compressive stress between the rivet head of the semi-hollow punched rivet and the rivet foot cutting edge.
- a build-up of shear stress transverse to the setting direction can preferably be reduced or completely eliminated in comparison to the prior art.
- the field of application of the punch rivet connection is also extended to joining partners that are susceptible to shear stresses aligned transversely to the setting direction, such as an aluminum die-cast part.
- a hole clearance can be formed between a pre-hole inner wall delimiting the course of the pre-hole and the rivet foot, by means of which component stresses between the joining partners can be compensated.
- the joining partners have different coefficients of thermal expansion, the different thermal expansions of the joining partners when exposed to heat can be compensated for by using up the clearance without shear stress building up in the joining partner on the setting side.
- the hole path of the pilot hole formed in the joining partner on the setting side can, viewed in the setting direction, taper conically, specifically between a small-diameter hole section and a large-diameter hole section of the pilot hole.
- the small-diameter hole section is larger by the hole clearance than the diameter of the rivet foot of the semi-tubular punch rivet in order to ensure that the joining partner on the setting side is largely free of shear stress.
- the small-diameter hole section of the preliminary hole can be formed on the contact side of the joining partner on the setting side with the joining partner on the die side.
- the pilot hole widens conically in the opposite direction to the setting.
- the conical surface of the pre-hole can form a run-up slope in the setting stroke, along which the semi-tubular punch rivet is guided load-free in the direction of the die-side joining partner.
- the large-diameter hole section of the conically tapering hole passage of the pilot hole is preferably dimensioned smaller than the head diameter of the rivet head. This ensures that the underside of the rivet head acts as a height stop during the setting process, which interacts with the facing surface of the joining partner on the setting side. In addition, it is ensured that the rivet head with the larger diameter completely covers the pilot hole formed in the joining partner on the setting side.
- the rivet foot can have a cylindrical rivet foot wall, which limits a bolt recess radially on the inside rivet foot blade is open.
- the bolt indentation is filled with material to be joined, causing the rivet foot blade to expand radially outwards at right angles to the setting direction.
- the bolt indentation may extend along the bolt axis for a height between the foot of the rivet and the crest.
- the height of the bolt indentation is designed with regard to a perfect spreading behavior of the semi-tubular punch rivet.
- the apex of the bolt recess can preferably act as a stop against which a slug of material from a joining partner presses during the setting process, specifically with the build-up of a spreading force that supports the spreading of the rivet foot.
- a thickened area of material can be formed between the apex of the bolt recess and the underside of a rivet head.
- the material thickening extends over an axial length between the apex point and the underside of the rivet head.
- the expansion behavior of the rivet foot can be adjusted during the setting process.
- a spreading movement of the rivet foot in the pilot hole of the joining partner on the setting side can be reduced or prevented, as a result of which a build-up of shear stress transverse to the setting direction in the joining partner on the setting side can be avoided.
- the axial length of the material thickening can correspond to the material thickness of the joining partner on the setting side.
- the material thickening can be implemented as a solid material section over its entire axial length.
- the material thickening can have an internal hollow profile, which is realized with a smaller diameter compared to the bolt recess.
- the large-diameter pin depression merges along the pin axis at a ring shoulder into the small-diameter inner hollow profile.
- the inner hollow profile can be offset by a material offset from the underside of the rivet head, viewed in the axial direction. Due to the material offset, the rivet head is designed to be sufficiently rigid in order to ensure a perfect transfer of force to the rivet foot during the setting process.
- the joining partner on the setting side can be an aluminum die-cast part in which the pre-hole is not formed by mechanical machining, but rather by primary shaping, ie during the injection molding process.
- the inner wall of the pilot hole can taper to form a demolding slope, so that after the injection molding process, proper demolding is guaranteed.
- Fig. 1 is a micrograph of a punch rivet connection according to a first
- FIG. 1 shows a punch rivet connection with a joining partner 1 on the setting side, a joining partner 3 on the die side and an intermediate joining partner 5 .
- the punch rivet connection is produced in a setting process indicated in FIG. 4 with the aid of a semi-hollow punch rivet 7, which has a rivet head 9 of large diameter, which is implemented as a flat head.
- the rivet head 9 merges at its rivet head underside 11 into a small-diameter rivet foot 13 which terminates at a circumferential rivet foot cutting edge 15 .
- the semi-hollow punch rivet 7 is implemented in the non-deformed state as a component that is rotationally symmetrical about a bolt axis B.
- the semi-hollow punch rivet 7 is driven through the joining partner 1 on the setting side and through the middle joining partner 5 into the joining partner 3 on the die side, while maintaining a residual bottom thickness in the joining partner 3 on the die side.
- the rivet foot 13 is spread open, resulting in an undercut between the rivet foot cutting edge 15 and the underside 11 of the rivet head.
- the three joining partners 1, 3, 5 are therefore clamped together under compressive stress acting in the setting direction.
- a mixed construction connection is realized by way of example, in which the joining partner 1 on the setting side is an aluminum die-cast part, while the joining partner 3 on the matrix side can be a steel sheet and the intermediate joining partner 5 can be an aluminum sheet.
- the essence of the invention is that by providing a preliminary hole 17, a build-up of shear stress transverse to the setting direction in the joining partner 1 on the setting side is reduced or completely eliminated. In this way, early component failure can be prevented in the assembly-side joint partner 1, which is manufactured as an aluminum die-cast part.
- the semi-tubular punch rivet 7 is guided load-free through the pilot hole 17 of the joining partner 1 on the setting side and is then driven into the intermediate joining partner 5 and the joining partner 3 on the die side, both of which are provided without a pilot hole.
- FIG. 2 shows a point in time after the injection molding process has taken place. Accordingly, the mold cavity of the injection mold 18 is still closed. According to FIGS. 2 and 3, the preliminary hole 17 is formed by means of a shaped projection 20 formed on the upper half of the injection mold.
- the form-protrusion 20 is in the Fi gures 2 and 3 running with a conical draft angle to ensure flawless demolding during the injection molding process. Accordingly, the pilot hole formed 17 of the setting-side joining partner 1 widens upwards.
- a three-layer structure consisting of the three parts to be joined 1 , 3 , 5 is clamped between a hold-down device 19 and a die 21 .
- a setting stamp 21 is guided in a stroke-adjustable manner.
- the setting stamp 21 applies a setting force Fs to the rivet head 9, as a result of which the semi-tubular punch rivet 7 pierces the intermediate joining partner 5 and is driven into the joining partner 3 on the die side with its rivet foot cutting edge 15 .
- the joining partner 1 on the setting side remains stress-free during the setting process and is only subjected to compressive stress after the setting process has taken place, which acts in the setting direction.
- the small-diameter hole section 25 (FIG. 1) of the preliminary hole 17 is positioned on the contact side of the joining partner 1 on the setting side with the joining partner 3 on the die side.
- the small-diameter hole section 25 of the preliminary hole 17 has a diameter d2 (FIG. 1) which is larger by a hole clearance 29 than the rivet foot diameter dN (FIG. 1).
- the rivet foot 13 of the semi-hollow punch rivet 7 has a cylindrical rivet foot wall 33 (FIG. 5) which delimits a bolt recess 35 radially on the inside.
- the bolt indentation 35 is open at the rivet foot cutting edge 15 and extends along the bolt axis B over a height h between the rivet foot cutting edge 15 and an inner apex 37.
- the semi-tubular punch rivet 7 can be adapted according to FIGS. 5 to 8:
- the semi-tubular punch rivet 7 in FIG - Page 11 a thickening of the material 39, which extends over an axial length m stretches
- a spreading movement of the rivet foot 13 in the preliminary hole 17 of the joining partner 1 on the setting side is reduced in the setting process in order to avoid or weaken the build-up of shear stress.
- the material thickening 39 is implemented as a solid material section over its entire axial length m.
- the material thickening 39 is not realized as a solid material, but rather the material thickening 39 has an inner hollow profile 41, which has a smaller diameter than the bolt recess 35.
- the hollow hollow rivet 7 therefore has an inner bore, consisting of the large-diameter bolt depression 35, which merges into the small-diameter inner hollow profile 41 at an annular shoulder 43.
- the inner hollow profile 41 is offset by a material offset 45 from the underside 11 of the rivet head, viewed in the axial direction.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Insertion Pins And Rivets (AREA)
- Connection Of Plates (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202280018248.3A CN117295568A (zh) | 2021-03-29 | 2022-02-07 | 冲铆连接结构 |
EP22703933.6A EP4313441A1 (de) | 2021-03-29 | 2022-02-07 | Stanznietverbindung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102021107789.3A DE102021107789B4 (de) | 2021-03-29 | 2021-03-29 | Stanznietverbindung und Verfahren zur Herstellung einer Stanznietverbindung |
DE102021107789.3 | 2021-03-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022207165A1 true WO2022207165A1 (de) | 2022-10-06 |
Family
ID=80447810
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2022/052819 WO2022207165A1 (de) | 2021-03-29 | 2022-02-07 | Stanznietverbindung |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP4313441A1 (de) |
CN (1) | CN117295568A (de) |
DE (1) | DE102021107789B4 (de) |
WO (1) | WO2022207165A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102022126974A1 (de) | 2022-10-14 | 2024-04-25 | Audi Planung GmbH | Nietverbindung |
Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1995035174A1 (en) * | 1994-06-22 | 1995-12-28 | Ariel Industries Plc | Improved means of fastening sheets by rivetting |
DE20303961U1 (de) | 2003-03-13 | 2003-04-30 | Union Knopf GmbH, 33689 Bielefeld | Als Zier- und/oder Verbindungsniet einsetzbarer Niet |
DE102004042662A1 (de) * | 2004-09-01 | 2006-03-09 | Richard Bergner Verbindungstechnik Gmbh & Co. Kg | Montageeinheit für eine Stanznietverbindung, Stanznietverbindung und Verfahren zum Verbinden zweier Fügeteile |
JP2007118047A (ja) * | 2005-10-28 | 2007-05-17 | Japan Drive-It Co Ltd | リベットの止着構造およびリベット |
DE102011054358A1 (de) | 2011-10-10 | 2013-04-11 | Herrmann Ultraschalltechnik Gmbh & Co. Kg | Umformverfahren und Vorrichtung zur Durchführung des Verfahrens |
DE102012005203A1 (de) * | 2012-03-16 | 2013-09-19 | Tox Pressotechnik Gmbh & Co. Kg | Verfahren zum Verbinden von mindestens zwei Bauteillagen sowie Verbindungssystem aus mindestens zwei Bauteillagen |
DE102012204131A1 (de) * | 2012-03-16 | 2013-09-19 | Bayerische Motoren Werke Aktiengesellschaft | Stanzniet sowie Verfahren zum Fügen von Fügepartnern durch einen Stanzniet |
DE102013020504A1 (de) | 2013-12-11 | 2015-06-11 | Newfrey Llc | Stanzniet sowie Stanznietverfahren und -verbindung |
US20150362004A1 (en) * | 2014-06-12 | 2015-12-17 | Ford Global Technologies, Llc | Clearance hole for self-piercing rivet |
DE102015014941A1 (de) | 2015-11-18 | 2017-05-18 | Audi Ag | Verfahren zur Erzeugung einer Verbindung zwischen einem Funktionselement und einem plattenförmigen Bauteil sowie Vorrichtung zur Durchführung des Verfahrens |
CN105479771B (zh) * | 2015-12-30 | 2017-09-26 | 吉林大学 | 碳纤维复合材料板的制备方法及其与铝合金板的自冲铆接模具及方法 |
DE102017110131A1 (de) * | 2016-05-19 | 2017-11-23 | GM Global Technology Operations LLC | Befestigungselement mit einem Halteabschnitt |
DE102019102383A1 (de) | 2019-01-30 | 2020-07-30 | Böllhoff Verbindungstechnik GmbH | Halbhohlstanzniet, eine Stanznietverbindung aus mindestens zwei Bauteilen mithilfe des Halbhohlstanzniets sowie ein Verfahren zum Verbinden der Bauteile mit dem Halbhohlstanzniet |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005031916B4 (de) | 2005-07-07 | 2008-09-11 | Böllhoff Verbindungstechnik GmbH | Halbhohlstanzniet zum mechanischen Fügen und Verfahren zum Herstellen einer Fügeverbindung |
DE102012102860A1 (de) | 2012-04-02 | 2013-10-10 | Böllhoff Verbindungstechnik GmbH | Stanzniet mit einem vorgelochten flächigen Element, Herstellungsverfahren sowie Fügeverfahren dafür |
DE102016200533A1 (de) | 2016-01-18 | 2017-07-20 | Volkswagen Aktiengesellschaft | Stanzniet zum Fügen eines ersten Fügepartners mit einem zweiten Fügepartner mittels einer Nietverbindung |
-
2021
- 2021-03-29 DE DE102021107789.3A patent/DE102021107789B4/de active Active
-
2022
- 2022-02-07 EP EP22703933.6A patent/EP4313441A1/de active Pending
- 2022-02-07 CN CN202280018248.3A patent/CN117295568A/zh active Pending
- 2022-02-07 WO PCT/EP2022/052819 patent/WO2022207165A1/de active Application Filing
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1995035174A1 (en) * | 1994-06-22 | 1995-12-28 | Ariel Industries Plc | Improved means of fastening sheets by rivetting |
DE20303961U1 (de) | 2003-03-13 | 2003-04-30 | Union Knopf GmbH, 33689 Bielefeld | Als Zier- und/oder Verbindungsniet einsetzbarer Niet |
DE102004042662A1 (de) * | 2004-09-01 | 2006-03-09 | Richard Bergner Verbindungstechnik Gmbh & Co. Kg | Montageeinheit für eine Stanznietverbindung, Stanznietverbindung und Verfahren zum Verbinden zweier Fügeteile |
JP2007118047A (ja) * | 2005-10-28 | 2007-05-17 | Japan Drive-It Co Ltd | リベットの止着構造およびリベット |
DE102011054358A1 (de) | 2011-10-10 | 2013-04-11 | Herrmann Ultraschalltechnik Gmbh & Co. Kg | Umformverfahren und Vorrichtung zur Durchführung des Verfahrens |
DE102012005203A1 (de) * | 2012-03-16 | 2013-09-19 | Tox Pressotechnik Gmbh & Co. Kg | Verfahren zum Verbinden von mindestens zwei Bauteillagen sowie Verbindungssystem aus mindestens zwei Bauteillagen |
DE102012204131A1 (de) * | 2012-03-16 | 2013-09-19 | Bayerische Motoren Werke Aktiengesellschaft | Stanzniet sowie Verfahren zum Fügen von Fügepartnern durch einen Stanzniet |
DE102013020504A1 (de) | 2013-12-11 | 2015-06-11 | Newfrey Llc | Stanzniet sowie Stanznietverfahren und -verbindung |
US20150362004A1 (en) * | 2014-06-12 | 2015-12-17 | Ford Global Technologies, Llc | Clearance hole for self-piercing rivet |
DE102015014941A1 (de) | 2015-11-18 | 2017-05-18 | Audi Ag | Verfahren zur Erzeugung einer Verbindung zwischen einem Funktionselement und einem plattenförmigen Bauteil sowie Vorrichtung zur Durchführung des Verfahrens |
CN105479771B (zh) * | 2015-12-30 | 2017-09-26 | 吉林大学 | 碳纤维复合材料板的制备方法及其与铝合金板的自冲铆接模具及方法 |
DE102017110131A1 (de) * | 2016-05-19 | 2017-11-23 | GM Global Technology Operations LLC | Befestigungselement mit einem Halteabschnitt |
DE102019102383A1 (de) | 2019-01-30 | 2020-07-30 | Böllhoff Verbindungstechnik GmbH | Halbhohlstanzniet, eine Stanznietverbindung aus mindestens zwei Bauteilen mithilfe des Halbhohlstanzniets sowie ein Verfahren zum Verbinden der Bauteile mit dem Halbhohlstanzniet |
Also Published As
Publication number | Publication date |
---|---|
CN117295568A (zh) | 2023-12-26 |
DE102021107789A1 (de) | 2022-09-29 |
DE102021107789B4 (de) | 2023-12-07 |
EP4313441A1 (de) | 2024-02-07 |
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