EP3986655A1 - Pion à souder creux pour assemblage de deux matériaux différents - Google Patents
Pion à souder creux pour assemblage de deux matériaux différentsInfo
- Publication number
- EP3986655A1 EP3986655A1 EP20746242.5A EP20746242A EP3986655A1 EP 3986655 A1 EP3986655 A1 EP 3986655A1 EP 20746242 A EP20746242 A EP 20746242A EP 3986655 A1 EP3986655 A1 EP 3986655A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sheet
- metal
- pin
- cylinder
- hollow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000003466 welding Methods 0.000 title claims abstract description 47
- 239000000463 material Substances 0.000 title claims description 33
- 229910052751 metal Inorganic materials 0.000 claims abstract description 104
- 239000002184 metal Substances 0.000 claims abstract description 104
- 238000004080 punching Methods 0.000 claims abstract description 57
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 55
- 229910052742 iron Inorganic materials 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 13
- 239000010959 steel Substances 0.000 claims description 27
- 229910000831 Steel Inorganic materials 0.000 claims description 26
- 239000002131 composite material Substances 0.000 claims description 17
- 229910000838 Al alloy Inorganic materials 0.000 claims description 15
- 239000000835 fiber Substances 0.000 claims description 14
- 239000004033 plastic Substances 0.000 claims description 12
- 230000002787 reinforcement Effects 0.000 claims description 11
- 239000010935 stainless steel Substances 0.000 claims description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 8
- 230000014759 maintenance of location Effects 0.000 claims description 7
- 239000008188 pellet Substances 0.000 claims description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 238000011161 development Methods 0.000 claims description 4
- 230000008439 repair process Effects 0.000 claims description 4
- 229910000760 Hardened steel Inorganic materials 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 3
- 238000010292 electrical insulation Methods 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 230000001737 promoting effect Effects 0.000 claims 1
- 230000000717 retained effect Effects 0.000 abstract description 7
- 229910052782 aluminium Inorganic materials 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- 229920001169 thermoplastic Polymers 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 229910000851 Alloy steel Inorganic materials 0.000 description 5
- 229920000049 Carbon (fiber) Polymers 0.000 description 5
- 239000004917 carbon fiber Substances 0.000 description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000004416 thermosoftening plastic Substances 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
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- 238000010438 heat treatment Methods 0.000 description 3
- 239000002861 polymer material Substances 0.000 description 3
- 238000004381 surface treatment Methods 0.000 description 3
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 238000000418 atomic force spectrum Methods 0.000 description 2
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- 238000005260 corrosion Methods 0.000 description 2
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- 238000005096 rolling process Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- YPFNIPKMNMDDDB-UHFFFAOYSA-K 2-[2-[bis(carboxylatomethyl)amino]ethyl-(2-hydroxyethyl)amino]acetate;iron(3+) Chemical compound [Fe+3].OCCN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O YPFNIPKMNMDDDB-UHFFFAOYSA-K 0.000 description 1
- 229910018566 Al—Si—Mg Inorganic materials 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
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- 239000003365 glass fiber Substances 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 238000007542 hardness measurement Methods 0.000 description 1
- 239000002648 laminated material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
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- 229920000647 polyepoxide Polymers 0.000 description 1
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- 229920006305 unsaturated polyester Polymers 0.000 description 1
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- 239000013585 weight reducing agent Substances 0.000 description 1
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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/002—Resistance welding; Severing by resistance heating specially adapted for particular articles or work
- B23K11/004—Welding of a small piece to a great or broad piece
- B23K11/0066—Riveting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/002—Resistance welding; Severing by resistance heating specially adapted for particular articles or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/002—Resistance welding; Severing by resistance heating specially adapted for particular articles or work
- B23K11/004—Welding of a small piece to a great or broad piece
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/16—Resistance welding; Severing by resistance heating taking account of the properties of the material to be welded
- B23K11/18—Resistance welding; Severing by resistance heating taking account of the properties of the material to be welded of non-ferrous metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/16—Resistance welding; Severing by resistance heating taking account of the properties of the material to be welded
- B23K11/18—Resistance welding; Severing by resistance heating taking account of the properties of the material to be welded of non-ferrous metals
- B23K11/185—Resistance welding; Severing by resistance heating taking account of the properties of the material to be welded of non-ferrous metals of aluminium or aluminium alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
-
- 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
- F16B5/08—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of welds or the like
-
- 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
- B23K2103/18—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
-
- 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
- B23K2103/30—Organic material
- B23K2103/38—Fabrics, fibrous 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
- B23K2103/50—Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26
- B23K2103/52—Ceramics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
- B23P19/06—Screw or nut setting or loosening machines
- B23P19/062—Pierce nut setting machines
- B23P19/064—Deforming the support material only, e.g. the sheet or plate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
- B29C65/562—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits using extra joining elements, i.e. which are not integral with the parts to be joined
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
- B29C66/21—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/43—Joining a relatively small portion of the surface of said articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
- B29C66/721—Fibre-reinforced materials
- B29C66/7212—Fibre-reinforced materials characterised by the composition of the fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/74—Joining plastics material to non-plastics material
- B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
- B29C66/7428—Transition metals or their alloys
- B29C66/74283—Iron or alloys of iron, e.g. steel
Definitions
- the invention relates to the assembly of materials of a different nature, which cannot be welded directly by resistance.
- the structures targeted are in particular those of motor vehicles, such as the body, to contribute to their weight reduction and to the reduction of greenhouse gas emissions.
- the invention relates, for example, to the mechanical assembly of a steel sheet with a sheet of an aluminum alloy such as Al-Si-Mg or Al-Si-Mg-Mn, or of a composite material, or of a thermoplastic polymer. with or without fiber reinforcement.
- the invention thus relates to a hollow weld pin to allow the mechanical assembly of sheets of a different nature with a mass gain induced by the weld pin reduced as much as possible to achieve the objective of lightening motor vehicles .
- the connecting element is a pin which is, by virtue of its form factor, retained by the punched sheet, which facilitates use before welding.
- the hollow character of the pin significantly lightens the assembly, which constitutes a significant advance.
- a method for assembling a sheet and an iron-based metal part comprising a step of fitting with retention by the sheet of a hollow pin, by through punching of the sheet with a barrel of said hollow pin, a pellet detaching from the sheet, a collar of the pin abutting against the surface of the sheet once the through-punching has been carried out, or by overmolding of said barrel in the sheet, then a step welding of a metal cylinder of the pin to the iron-based metal part by bringing a free end of the metal cylinder into contact with the surface of the iron-based metal part and electric resistance welding.
- the assembly is done with a punching step passing through the sheet with a hollow cylinder - or tube - of electrically conductive metal, one end of which has a flaring which abuts against the surface of the sheet.
- a punching step passing through the sheet with a hollow cylinder - or tube - of electrically conductive metal, one end of which has a flaring which abuts against the surface of the sheet.
- a step of welding the hollow metal cylinder to the iron-based metal part by bringing a free end of the metal cylinder into contact hollow opposite to the flare with the surface of the iron-based metal part and application of an electric resistance welding electrode to the mouth of the flare.
- a hollow part generally flat, of circular section parallel to its plane, having an axis of symmetry of revolution, rigid, and open at both ends, is used.
- the hollow weld pin according to the invention makes it possible to:
- [0005] pass through a metal, composite or thermoplastic sheet, with thicknesses less than or equal to 4mm, then to allow a rigid integral maintenance of the sheet with the pin after punching or overmolding, while offering at least an accessible or even protruding part in the form of a ring surrounding a hollow, or of a ring portion, weldable by electrical resistance,
- the hollow metal cylinder (tube) is formed beforehand by stamping and cutting a sheet of low-alloy steel of 0.5, 1 or 2 mm thickness;
- a sheet for mechanical assembly pre-equipped with a hollow pin comprising a hollow cylinder (tube) passing through electrically conductive metal, which on one side of the sheet has a flare which abuts against the surface of the sheet and which on the other face of the sheet has a free end.
- the sheet retains the hollow pin.
- It is also defined as a sheet for mechanical assembly retaining a tube open at its two ends and passing through, made of electrically conductive metal, which on one face of the sheet has a flare which abuts against the surface of the sheet and which on the other face of the sheet has a free end.
- It may be a sheet of aluminum alloy, or a sheet of thermoplastic polymer with or without fibrous reinforcement, in particular a fibrous reinforcement with long fibers, or a sheet of composite material with an organic or ceramic matrix with or without a fibrous reinforcement, in particular a fibrous reinforcement with long fibers;
- the material of the hollow metal cylinder can be kept away from the sheet material by an additional cylinder of the pin, or additional tube, the free end of the hollow metal cylinder protruding from a free end of the additional cylinder ;
- the additional cylinder can be made of stainless steel, of hardened steel, or of a non-metallic material which is refractory to heat;
- the hollow metal cylinder and the additional cylinder can be assembled by welding, glue, clamping or plastic deformation between respective end flanges of the cylinders on the flare side, or even blocked relative to each other by inserting a shim between an internal surface of the additional cylinder and an opposite external surface of the hollow metal cylinder, or by the presence on the internal diameter of the additional cylinder of radially projecting parts favoring an embedding of the additional cylinder around the hollow metal cylinder;
- the assembly can include electrical insulation between the material of the hollow metal cylinder and the material of the additional cylinder;
- the invention also consists of an assembly of a sheet and an iron-based metal part comprising a hollow pin (tube) comprising an electrically conductive metal cylinder passing through the sheet and one end of which has a flaring in abutment against the surface of the sheet, the hollow metal cylinder being welded to the iron-based metal part. It extends to a motor vehicle whose structure includes at least one assembly according to the invention.
- the rod of a conductive metal pin composed of a head and a rod of length chosen for the the repair being placed in the recess of said electrically conductive metal cylinder, the head resting against the flare of the cylinder and an electric welding electrode being applied to the head to weld the rod to the sheet.
- Figure 1 is a sectional view of a pin according to a first embodiment of the invention.
- Figures 2 to 4 are sectional views of successive stages of implementation of a pin according to Figure 1.
- Figure 5 is an explanation of phenomena involved in the steps of the figures mentioned above.
- Figures 6 and 7 are sectional views of subsequent successive steps in implementing a pin according to Figure 1.
- Figure 8 shows the manufacture of a pin according to Figure 1.
- Figure 9 shows an example of implementation at the stage of Figure 4 as well as the force curves applied during the steps of Figures 2 to 4 in four separate implementations with a sheet of the same type.
- Figure 13 is a sectional view of a pin according to a second embodiment of the invention.
- Figure 21 shows results after placing the pin of Figure 13 on three sheets of different materials.
- FIG. 22 shows three variants of a pin according to the first embodiment.
- Figure 31 shows a variant of the establishment of the pin, for certain materials of the sheet.
- FIG. 3 In Figure 3, there is shown the application of a force F increasing over time and perpendicular to the surface 23 which allows the annular surface 24 of the end of the cylindrical barrel to conform with the upper surface of the sheet 40 which deforms elastically until the applied force F reaches a critical value Fe which causes the elastic limit of the sheet 40 to be exceeded, and the start of its plastic deformation and its punching until a pellet 70 forms in the deformed sheet 40, detaches therefrom and is discharged through the bore of the punching die.
- the tubular character was 22 facilitates the radial elastic deformation of the pin 10 during punching.
- the elastic return of the sheet 40 after punching causes a contraction of the sheet around the external diameter De22 of the barrel 22 and therefore a compressive stress on the external surface 25 of the barrel 22.
- Reference 1 conformation of the contact between the annular surface of the end of the barrel and the upper surface of the sheet
- this assembly method is more suitable for the assembly of two metal sheets than a composite or thermoplastic sheet 40 on a sheet 80 mainly based on iron.
- FIG. 11C Part c of Figure 11 shows a hollow weld pin and the aluminum alloy sheet after resistance welding to a steel sheet.
- FIG. 12 shows the photograph of an assembly between an aluminum alloy sheet and a steel sheet using the hollow weld pin according to the invention after a mechanical shear test, which highlights evidence of a rupture of the aluminum sheet and not of the weld, attesting to a certain level of mechanical strength of the assembly according to the invention.
- the length L22 of the shank 22 is necessarily greater than the total height - measured from the upper surface of the collar to the end of the shank - of the part 30 , sum of the length L32 of the shank 32 and the thickness e30 of the flange of the external part 30, so that the hollow weld pin 10 has a projecting annular surface 24, end of the internal shank 22 projecting from the external shank 32.
- the punching / retention operation can be reproduced on different areas of the sheet 40 depending on the technical specification of the future assembly with the sheet 80.
- the invention applies in particular to the automotive sector, for the assembly of body parts or body parts made of steel and aluminum alloy, or for the assembly of parts made of steel and of polymer material, or of composites. .
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Connection Of Plates (AREA)
- Resistance Welding (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1906672A FR3097456B1 (fr) | 2019-06-20 | 2019-06-20 | Pion à souder pour assemblage de deux matériaux différents |
FR2006389A FR3097716B1 (fr) | 2019-06-20 | 2020-06-18 | Pion à souder creux pour assemblage de deux matériaux différents |
PCT/FR2020/000188 WO2020254735A1 (fr) | 2019-06-20 | 2020-06-19 | Pion à souder creux pour assemblage de deux matériaux différents |
Publications (1)
Publication Number | Publication Date |
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EP3986655A1 true EP3986655A1 (fr) | 2022-04-27 |
Family
ID=68343029
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20746242.5A Pending EP3986655A1 (fr) | 2019-06-20 | 2020-06-19 | Pion à souder creux pour assemblage de deux matériaux différents |
Country Status (7)
Country | Link |
---|---|
US (1) | US20220355409A1 (fr) |
EP (1) | EP3986655A1 (fr) |
CA (1) | CA3143390A1 (fr) |
FR (2) | FR3097456B1 (fr) |
MA (1) | MA56530A (fr) |
MX (1) | MX2021015891A (fr) |
WO (1) | WO2020254735A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN117961494B (zh) * | 2024-03-29 | 2024-06-18 | 潍柴动力股份有限公司 | 一种销钉压装方法、装置、设备及介质 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009285678A (ja) * | 2008-05-28 | 2009-12-10 | Kobe Steel Ltd | 鋼材と軽合金材との異材接合方法および異材接合体、鋼材との異材接合用軽合金材、鋼材と軽合金材との異材接合用リベット。 |
DE102012017289A1 (de) * | 2012-08-31 | 2014-05-15 | Audi Ag | Einprägeelement insbesondere für das Widerstandsschweißen |
KR20160033879A (ko) * | 2014-09-18 | 2016-03-29 | 주식회사 성우하이텍 | 셀프 피어싱 프로젝션 웰딩 리벳 및 이를 이용한 접합 구조체 |
-
2019
- 2019-06-20 FR FR1906672A patent/FR3097456B1/fr active Active
-
2020
- 2020-06-18 FR FR2006389A patent/FR3097716B1/fr active Active
- 2020-06-19 US US17/620,988 patent/US20220355409A1/en active Pending
- 2020-06-19 CA CA3143390A patent/CA3143390A1/fr active Pending
- 2020-06-19 MX MX2021015891A patent/MX2021015891A/es unknown
- 2020-06-19 EP EP20746242.5A patent/EP3986655A1/fr active Pending
- 2020-06-19 WO PCT/FR2020/000188 patent/WO2020254735A1/fr unknown
- 2020-06-19 MA MA056530A patent/MA56530A/fr unknown
Also Published As
Publication number | Publication date |
---|---|
FR3097456B1 (fr) | 2021-05-28 |
MX2021015891A (es) | 2022-05-24 |
WO2020254735A1 (fr) | 2020-12-24 |
FR3097716B1 (fr) | 2022-11-04 |
FR3097456A1 (fr) | 2020-12-25 |
CA3143390A1 (fr) | 2020-12-24 |
FR3097716A1 (fr) | 2020-12-25 |
US20220355409A1 (en) | 2022-11-10 |
MA56530A (fr) | 2022-04-27 |
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