WO1988005991A2 - Dispositif de fixation et son procede de fabrication - Google Patents

Dispositif de fixation et son procede de fabrication Download PDF

Info

Publication number
WO1988005991A2
WO1988005991A2 PCT/EP1988/000023 EP8800023W WO8805991A2 WO 1988005991 A2 WO1988005991 A2 WO 1988005991A2 EP 8800023 W EP8800023 W EP 8800023W WO 8805991 A2 WO8805991 A2 WO 8805991A2
Authority
WO
WIPO (PCT)
Prior art keywords
section
fastener according
rivet
shaft
fastener
Prior art date
Application number
PCT/EP1988/000023
Other languages
German (de)
English (en)
Other versions
WO1988005991A3 (fr
Inventor
Gerhard Bögel
Original Assignee
Sfs Stadler Ag
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 Sfs Stadler Ag filed Critical Sfs Stadler Ag
Publication of WO1988005991A2 publication Critical patent/WO1988005991A2/fr
Priority to NO884615A priority Critical patent/NO884615L/no
Priority to FI884782A priority patent/FI884782A/fi
Priority to DK577688A priority patent/DK577688A/da
Publication of WO1988005991A3 publication Critical patent/WO1988005991A3/fr

Links

Classifications

    • 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
    • F16B19/10—Hollow rivets; Multi-part rivets fastened by expanding mechanically
    • F16B19/1027—Multi-part rivets
    • F16B19/1036—Blind rivets
    • F16B19/1045—Blind rivets fastened by a pull - mandrel or the like
    • F16B19/1054—Blind rivets fastened by a pull - mandrel or the like the pull-mandrel or the like being frangible
    • 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
    • B21J15/36—Rivet sets, i.e. tools for forming heads; Mandrels for expanding parts of hollow rivets
    • B21J15/365—Mandrels for expanding parts of hollow rivets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/56—Making machine elements screw-threaded elements
    • 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
    • B23K11/0046—Welding of a small piece to a great or broad piece the extremity of a small piece being welded to a base, e.g. cooling studs or fins to tubes or plates
    • B23K11/0053—Stud welding, i.e. resistive
    • 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
    • B23K11/24—Electric supply or control circuits therefor
    • B23K11/26—Storage discharge 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
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
    • B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
    • B23K35/0288—Welding studs
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
    • C04B22/08—Acids or salts thereof
    • C04B22/087—Acids or salts thereof containing chromium in the anion, e.g. chromates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
    • C04B22/08—Acids or salts thereof
    • C04B22/14—Acids or salts thereof containing sulfur in the anion, e.g. sulfides
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/16—Sulfur-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/006—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing mineral polymers, e.g. geopolymers of the Davidovits type
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/24—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl, ammonium or metal silicates; containing silica sols
    • C04B28/26—Silicates of the alkali metals
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/02—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
    • 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
    • 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
    • F16B19/083—Self-drilling 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
    • F16B19/00—Bolts without screw-thread; Pins, including deformable elements; Rivets
    • F16B19/14—Bolts or the like for shooting into concrete constructions, metal walls or the like by means of detonation-operated nailing tools
    • 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
    • F16B25/0036—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw
    • F16B25/0094—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw the screw being assembled or manufactured from several components, e.g. a tip out of a first material welded to shaft of a second 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
    • F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00724—Uses not provided for elsewhere in C04B2111/00 in mining operations, e.g. for backfilling; in making tunnels or galleries
    • 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
    • F16B25/103—Screws performing an additional function to thread-forming, e.g. drill screws or self-piercing screws by means of a drilling screw-point, i.e. with a cutting and material removing action
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Definitions

  • the invention relates to a fastener made from at least two sections of different material or with a different material structure or degree of hardness, these sections being joined together by a welding method and to a method for producing fasteners.
  • the so-called stud welding process has also become known, by means of which small components, in particular studs, 5 are attached to larger workpieces. It is also already known to measure the immersion stroke time and / or the immersion stroke distance in the welding process and then to control the strength and / or the time of the welding arc current. Such measures may be suitable for welding individual bolts, but not for mass production, as is the case with fasteners, in particular screws. Furthermore, a flash-butt welding process for rolled steel has become known, in which the end faces of the parts to be welded are melted off at a given open-circuit voltage and these parts are pressed against one another.
  • a corresponding contact pressure is also required in such flash-butt welding processes, so that a corresponding ridge is again formed at the welding point, which must be removed after welding.
  • a steel shank to a hard metal spiral or a hard metal tube using the resistance welding method.
  • This connection is based on the special selection of the steel material, the hard metal material and the special welding parameters for carrying out this method.
  • This welding process also requires a relatively large contact pressure and, in addition, a relatively long welding time, which may still be conceivable in the manufacture of drilling tools, but would not be cost-effective in the manufacture of mass articles such as screws.
  • the object of the invention is therefore to create a fastener which can be assembled in a flawless manner and in a short time by a welding process from two or more sections without the need for reworking the weld. Furthermore, an optimal method for the mutual connection of the individual sections can be created, which enables economical manufacture of such fasteners and in which, moreover, no protruding burr is formed during the welding process.
  • this is achieved in that the one section having a drill tip, penetration tip or the like made of hardenable or hardenable, metallic, optionally corrosion-resistant material with the other, a shank, threaded shank, dowel, rivet body, rivet shank, Bolt or the like forming section of another metallic, possibly corrosion-resistant material or material structure is connected by a capacitor welding process.
  • the method proposed according to the invention is characterized in that the two sections of the fastener are aligned axially parallel to one another and are connected to one another by capacitor welding at their mutually facing ends, the welding time being 1-15 msec and the mutual contact pressure being a maximum of 100 kp.
  • Welded connection results A simple and inexpensive system can be used for the capacitor welding process, an optimal connection being able to be established by the shortest possible cycle time, and this with only very little pressure between the two parts.
  • a particular advantage is that precisely this short-term welding means that different materials, that is, very different metals, can be welded to one another without any great technical effort. It is therefore easily possible to securely weld metals with different melting points to one another.
  • the method according to the invention makes it possible to connect a case-hardened section (carbon steel) with an A 2 steel. It is therefore also possible in a simple manner, for example, to form the threaded section of a self-drilling screw from a carbon steel and the drill bit out a martensitic, hardenable steel (chrome steel). This also made it possible to weld a pre-hardened tip. During the welding process, the welding point itself is also hardened by the relatively high temperatures.
  • Friction welding is a process which is too slow per se and, moreover, the removal of the burr formed during the welding process is very expensive.
  • the connection using a laser welding process is also very expensive. Nevertheless, a secure connection between the individual sections of a fastener is required.
  • the capacitor welding process heats both parts to be welded together in the same way. This creates an economical and secure connection.
  • FIG. 1 shows schematically a welding process
  • 2 to 9 different design variants of the connection options between two Sections for forming a fastener
  • 11 to 16 different possibilities for the pre-processing of a drill bit for subsequent feeding to the welding device
  • 16 to 19 show an embodiment of a fastener as a self-drilling blind rivet
  • 20 shows a section along the line XX-XX in FIG. 19
  • 21 shows a section along the line XXI-XXI in FIG.
  • 19; 22 shows a fastener in the form of a blind rivet, partially cut away; 23 and 24 an embodiment of a blind rivet, shown in section and in the finished position; 25 to 32 embodiments of a fastener in the form of shooting bolts, which can thus be shot into the object in question by an explosion pressure.
  • a screw 1 and schematically shown a welding device 2 can be seen.
  • the screw 1 is formed from two sections 3 and 4, the sections being formed from different material or from a different material structure or different degrees of hardness.
  • the section 3 is formed by the screw head 5 and the threaded shaft 6.
  • the threaded shaft 6 has a larger diameter than the section 4 forming the drill tip, the free end of the threaded shaft 6 being offset and this free end 7 then corresponding in diameter to the diameter of the section 4.
  • a conical extension 8 is provided, whereas the associated end of the section 4 is designed with a flat surface 9.
  • the sections 3 and 4 are held by corresponding jaws 10 and 11 and moved against each other. As soon as the conical extension 8 comes into the vicinity of the flat surfaces 9 on the section 4 or touches it, the ⁇ t charge of the capacitor 12 is triggered and there is welding by the skipping sparks.
  • Sections 3 and 4 can be held and the movement directed against one another can be effected, for example, by pneumatic means.
  • the jaws 10 and 11 are made of copper, for example.
  • the same or a slightly modified device can be used to weld each type of fastener to each other. So it is also possible how will be explained in more detail below, connecting dowels, self-drilling dowels, shooting bolts and also other types of fasteners from two or more sections. There is always the same economical arrangement of a capacitor welding device.
  • Fig. 2 it is shown that the section 3 of a fastener can also consist only of the screw head 5, so that the second section 4 is then formed from the threaded shaft 6 and the drill tip 17.
  • an axially projecting pin 18 is provided instead of a conical extension, and a projecting flange 19 arranged at the free end can also be provided.
  • a corresponding depression 20 can additionally be provided on the underside of the screw head 5.
  • FIG. 3 shows, such an arrangement is also possible if, instead of the pin 18 according to FIG. 2, a conical extension 8 is now provided.
  • section 4 that the welding point 21 can also lie in the threaded region of the shaft 6, that the thread therefore extends both over the section 3 and over the section 4.
  • a region 22 of smaller diameter is provided, on which the drill tip 17 is formed.
  • an axially projecting pin 18 is provided on section 4, it being apparent from FIG. 5 that a conical extension 8 could also be arranged in this arrangement.
  • the embodiment according to FIG. 6 is practically the embodiment shown in the explanatory example according to FIG. 1.
  • the welding point 21 lies here in the diameter range of the drill tip 17, it being possible to finish the thread in the area of the threaded shank 6 before the welding, or else to roll it up subsequently.
  • the drill bit 17 can also be formed on the section 4 before welding, it also being possible to harden the drill bit before welding.
  • the welding point 21 is drawn further towards the drill tip 17, so that only a relatively short section 4 is required.
  • FIG. 8 shows this screw according to FIG. 6 in the welded state, the thread subsequently being applied here - 8th -
  • the shaft 6 can be applied, and the drill tip is also formed subsequently. As already mentioned, both parts can also be prepared ready for use before welding.
  • Fig. 9 shows an embodiment in which the thread 23 of the threaded section 6 has already been produced before the welding operation.
  • An axially projecting pin 18 is arranged here on the section 3 and the section 4 forming the drill tip 17 is also pre-processed and hardened and has flat surface 9 at one end.
  • the axially projecting pin 18 or a conical, pyramidal or bottle-necked extension 8 can be arranged either on the section 4 or also on the section 3 of the fastener, the opposite surface 9 preferably being flat .
  • the welding plane can be provided at any point in relation to the screw length.
  • the two parts can be arranged in the area of the drill tip at the transition area between the drill tip and thread or also in the thread area.
  • the capacitor welding method provided according to the invention enables a relatively silent welding of the two sections, which is achieved by the pre-current peak ignition.
  • the formation of a conical end section is even more economical in terms of volume during the welding process than the formation with a protruding spigot.
  • the welding time when a conical end is arranged is somewhat longer than in the case of a design with a pin at one end of a section. With a welding time of 1 - 15 msec and a mutual maximum contact pressure of 100 kp, an optimal welding is achieved with a reliable avoidance of a welding burr.
  • Stainless steel section is formed.
  • the possibility given by the invention also appears to be particularly important in that one section is formed from a carbon steel with a carbon content of up to approximately 0.4% and the other section from stainless steel.
  • the two sections can also be made from materials of different metals due to the short welding time. It has thus become possible to produce a fastener in which one section is formed from a carbon steel and the other section from aluminum.
  • the one section is made of a hardenable, martensitic chromium steel - 10 -
  • one section is formed from a high-performance high-speed steel and the other section to be formed from stainless steel.
  • one section is formed from a high-performance high-speed steel and the other section to be formed from stainless steel.
  • both sections from carbon steel, with the very short-term heating directly on the
  • the method according to the invention has made it possible for at least one of the sections of the fastener to be made of stainless austenitic steel.
  • a major advantage of the capacitor welding process is that the short-time welding does not result in any change in the structure of the sections to be welded to one another, that no work has to be carried out under vacuum and that welding can be carried out using inexpensive equipment.
  • section 4 of a fastener forming a drill tip, penetration tip or the like can also be prefabricated from a metal strip in a stamping / embossing process. This section 4 can then be subjected to hardening while still hanging in the strip. The strip is fed with the pre-punched and embossed sections 4 of the welding device. This enables an even more efficient production of fasteners with correspondingly pre-machined sections 4.
  • the completely formed sections 4, which form the drill tip 17, are produced from a strip 24.
  • This section 4 can then also be designed with a conical extension 8 at its end opposite the drill tip 17.
  • the punching out and shaping or the pinching of the projecting parts takes place, these sections 4 using narrow sections - ⁇ -
  • the lasting preform is cut free in several stages and preformed from the flat material.
  • the drill tip is then embossed in one of the last stations with a cutting edge.
  • Such prefabrication of the sections 4 of the fastener and through an optimized preform can produce high quality drill bits.
  • Such a process will be particularly suitable for cheap, high-performance fasteners where consistently high quality is required.
  • FIGS. 12 and 13 or 14 and 15 show design variants of the design according to FIGS. 10 and 11, the punching process and the punching options and the stamping options being different there.
  • fasteners in the form of rivets are explained, which according to the invention are formed from at least two sections which are connected to one another by a capacitor welding process.
  • the method according to the invention has a particularly positive effect in the case of a rivet, since this method has created a simple possibility of connecting sections made of aluminum and steel to one another. It is possible to attach an attached drill bit so that it can be twisted off or knocked off after the drilling process or remains at the free end of the rivet. If a rivet sleeve 32 is arranged, the end of the drill bit on the drill bit side can also be used to push off the drill bit.
  • These measures according to the invention can be used both for blind rivet fasteners and for other rivet designs.
  • the measures according to the invention make it possible to convert almost all common types of rivets and rivets into self-drilling rivets. This also makes it possible to access stainless material for the first time, although a drilling, hardenable tip can nevertheless be attached.
  • a section 4 forming a drill tip 17 is welded to the rivet shank 30 of a blind rivet fastener, with the rivet shank 30 having flats 31 or projections for attacking a drill drive at its free end facing away from the drill tip 17. points.
  • the rivet shaft 30 thus forms the second section 3, which is connected to the section 4 (drill tip 17) by a capacitor welding process.
  • the rivet sleeve 32 is pushed onto the rivet shaft 30 before the welding process. It is expedient if the rivet sleeve 32 is seated on the rivet shaft 30 in a rotationally fixed manner, so that the rivet sleeve 32 does not get stuck in the borehole during the drilling process.
  • a predetermined breaking point can be formed in the rivet shaft 30 in the usual way at a distance from the welding point in order to be able to tear off the rivet shaft 30 after the blind rivet connection has been tightened. It has been shown that such a predetermined breaking point must be arranged at a distance from the welding point in any case, since the welding point represents a particularly good connection. With such an arrangement, the drill tip 17, that is to say section 4, practically forms the expansion body for the blind rivet fastener.
  • a collar 33 of larger diameter is provided at one end of the rivet shaft 30, which approximately corresponds to the diameter of the section 4 in its rear region. In such an arrangement, this collar 33 then forms the expansion body in the blind rivet fastener.
  • section 4 would be separated by an impact in the area of the weld 21 after the part to be fastened had been drilled through. Since, however, when using blind rivet fasteners, as a rule there is hardly any access to the rear of the part to be fastened, the section 4 forming the drill tip 17 can of course remain in this position.
  • FIG. 18 shows practically a similar embodiment as shown in FIG. 17, but the rivet shaft 30 is additionally equipped with circumferential ribs 34, which allows the rivet shaft 30 to be pulled back even better when the rivet connection is made.
  • FIG. 23 shows a form of a blind rivet fastener similar to that of FIGS. 16 to 18, the rivet sleeve 32 being shown cut away. 24 shows the finished fastening state, the collar 33 at one end of the rivet shaft 30 or the section 4 itself forming the compression body. The rivet sleeve 32 is then formed on the back of the part to be fastened, so that a permanent connection is provided. 23 and 24, the predetermined breaking point 35 in the rivet shank 30 is also indicated.
  • the collar 33 arranged at one end of the rivet shaft 30 has a conical projection 36 directed against the rivet sleeve 32, so that the expansion of the rivet sleeve 32 on the back of the rivet connection is thereby further facilitated.
  • the flats 31 according to FIGS. 16 to 18 are also not arranged, but it is proposed here to make the rivet shaft 30 non-circular or polygonal in cross section in order to be able to transmit the force of a drill drive . 21 also shows a section through the rivet shaft 30, it being evident that the particular shape of a constant thickness has been chosen here.
  • the section 4, which forms the drill tip 17 is welded directly to one end of the rivet sleeve 32, the
  • the rivet shank 30 has a collar 38 with a larger diameter at its drill bit end.
  • the rivet sleeve 32 is thus designed in the form of a cup rivet, whereby the rivet shaft 30 engaging in this cup rivet must be connected to the rivet sleeve 32 in a rotationally fixed manner. This is necessary because section 4 is welded to the drill tip 17 with the rivet sleeve 32 and the drive for the drilling process takes place via the rivet shaft 30.
  • one section 3 is formed by a shaft, which is partially provided with a thread 39, and the one section 4 forms an penetration tip 40.
  • the diameter of the penetration tip 40 is larger than the diameter of the shaft 41 adjoining it.
  • a tubular casing 42 is placed or pushed onto this shaft 41, the outer diameter of which approximately corresponds to the largest outer diameter of the penetration tip 40.
  • a fastener has thereby been created which, as can be seen in FIG. 26, can be knocked through or shot through a part 43 to be fastened, whereupon after the installation of a washer 44 and a screw nut 45, this tubular casing 42 serves as an expansion body in the manner of a blind rivet fastener.
  • one section 3 is designed as a tubular sleeve 46 with an internal thread 47, this tubular sleeve 46 being welded at one end to section 4 in the form of a penetration tip 0.
  • This sleeve 46 can be made of any metal or even partially of plastic. In this way, a bolt of this type can be driven into a wall 48, for example, whereupon a threaded sleeve inserted into the wall is ready to screw in a screw 49.
  • the coefficient of friction of the surface of the tubular sheaths 42 and 46 is significantly greater than the coefficient of friction of the surface of the penetration tip 40. This results in a significantly lower force when the bolt is driven in or shot in, sufficient protection against rotation of the sleeve 42 or the sleeve 46 is nevertheless ensured.
  • the measures according to the invention can also be used in the case of a threaded bolt which can be knocked in or shot into a wall.
  • one section 3 is provided with a thread 39 at least over part of its length, and section 4 is designed as a penetration tip 40.
  • the two sections 3 and 4 are connected to one another in the region of the welding point 21 by a capacitor welding process. It is thus possible to manufacture the penetration tip from a different material or with a different material structure than the thread shaft itself, even in the case of the shooting bolts known to date.
  • the section 3 has the same outer diameter as the section 4 in the opposite connection area 21.
  • the section 3 has a stop 50.
  • Such a construction is particularly useful when fastening various parts, e.g. Plates or the like on a concrete wall, since this stop collar 50 then forms the fastening means in the form of a nail head.
  • FIG. 31 shows a similar embodiment to FIG. 30, but the diameter of section 3 is considerably smaller than the diameter of section 4 forming penetration tip 40.
  • a stop collar 50 is also provided in this embodiment, with stop collar 50 below a washer 51 is used, the outer diameter of which is greater than the largest outer diameter of the section 4 forming the penetration tip 40.
  • This enables an even larger fastening by hammering in or shooting in a bolt.
  • the length of section 3 from the end of section 4 to below the washer 51 approximately corresponds to the thickness D of the workpiece to be penetrated. As a result, when this bolt is inserted, the inner end 51 of section 4 will disengage laterally and engage behind the rear surface 52 of workpiece 53.
  • the bolt itself is designed similarly to the embodiment according to FIG. 31, that is to say with a penetration tip 40, a shaft 54 and a stop collar 50
  • a tubular sleeve 55 which have one or more, in the longitudinal direction, projecting webs 56, edges or the like .
  • a washer 51 could be used below the stop collar 50.
  • the tubular casing 55 pushed on here can consist, for example, of an easily deformable material, for example plastic or aluminum, so that after the insertion of such a bolt, the bore formed by the penetration tip 40 practically closes it
  • the at least two sections made of different material or with different material structure or degree of hardness are connected to one another by a capacitor welding process.
  • the measures according to the invention can be used for the first time to use austenitic, stainless steel. It would therefore be possible for the first time to produce complex shooting bolts.
  • the welding process according to the invention results in a large number of new possible variations. With fasteners in the form of screws, the short welding time and the resultant inexpensive production of a welded screw solution have a particular effect.
  • the method according to the invention is not intended to be limited solely to screws, rivets or shooting bolts, but can be used with any type of fastener which is somehow welded from two sections.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Geometry (AREA)
  • Physics & Mathematics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Connection Of Plates (AREA)
  • Earth Drilling (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

Dispositif de fixation (1) fabriqué à partir d'au moins deux sections (3, 4) de matériaux différents ou de matériaux ayant des grains ou des degrés de dureté variables, l'un étant lié à l'autre par un procédé de soudage à énergie emmagasinée, la première section (4) qui forme un foret de perçage en matériau métallique pouvant subir une trempe ou une trempe homogène, l'autre section (3) formant la tige (6) et la tête de vis (5) étant constituée d'un matériau métallique différent de préférence résistant à la corrosion ou ayant un grain différent. Les extrémités adjacentes des sections (3, 4) sont pourvues, à une extrémité, d'une section extrême plate (9) et, à l'autre extrémité d'une extension conique (8) ou d'un tenon axialement saillant et de petit diamètre.
PCT/EP1988/000023 1987-02-18 1988-01-14 Dispositif de fixation et son procede de fabrication WO1988005991A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NO884615A NO884615L (no) 1987-02-18 1988-10-17 Festeinnretning samt fremgangsmaate for fremstilling av festeinnretninger.
FI884782A FI884782A (fi) 1987-02-18 1988-10-17 Faestdon och foerfarande foer faestdonets framstaellning.
DK577688A DK577688A (da) 1987-02-18 1988-10-17 Fastgoerelsessorgan og fremgangsmaade til fremstilling heraf

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT35687 1987-02-18
ATA356/87 1987-02-18

Publications (2)

Publication Number Publication Date
WO1988005991A2 true WO1988005991A2 (fr) 1988-08-25
WO1988005991A3 WO1988005991A3 (fr) 1988-11-03

Family

ID=3488442

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1988/000023 WO1988005991A2 (fr) 1987-02-18 1988-01-14 Dispositif de fixation et son procede de fabrication

Country Status (5)

Country Link
EP (1) EP0303634A1 (fr)
JP (1) JPH0615428B2 (fr)
AU (1) AU1152588A (fr)
FI (1) FI884782A (fr)
WO (1) WO1988005991A2 (fr)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4998853A (en) * 1989-01-25 1991-03-12 Yugenkaisha Shinjo Seisakusho Self-drilling blind rivet and method for making same
US5190425A (en) * 1991-10-21 1993-03-02 Illinois Tool Works Inc. Anchor
EP0545852A1 (fr) * 1991-12-02 1993-06-09 HILTI Aktiengesellschaft Clou résistant à la corrosion pour l'enfoncement dans des matériaux durs
DE4216198A1 (de) * 1992-05-15 1993-11-18 Sfs Stadler Holding Ag Heerbru Selbstbohrende und -gewindeschneidende Schraube
EP0572598B1 (fr) * 1991-12-18 1995-10-18 SFS Industrie Holding AG Rivet aveugle tirant autoforeur
WO1997016652A1 (fr) * 1995-10-30 1997-05-09 Ludwig Hettich & Co. Vis et son procede de production
DE19613919C1 (de) * 1996-04-06 1997-06-19 Daimler Benz Ag Kopfschraube
WO1997027021A1 (fr) * 1996-01-23 1997-07-31 Fixinox Gesellschaft Zur Entwicklung Rationeller Befestigungs- Und Montagesysteme Mbh Procede de production d'elements de fixation
WO2003002879A3 (fr) * 2001-06-26 2003-02-20 Reck Engineering Ecrou a river aveugle autoperforant
DE10118678B4 (de) * 2001-04-14 2005-10-13 Harald Zahn Gmbh Befestigungssystem zur mechanischen Befestigung von Dämm- und Dichtungsmateriallien auf Flachdächern
WO2006108369A1 (fr) * 2005-04-12 2006-10-19 Acument Gmbh & Co. Ohg Vis
EP1923151A1 (fr) * 2007-07-24 2008-05-21 Top Well Tech Corp Procédé de fabrication d'une vis bimétallique
DE102009023895A1 (de) * 2009-06-04 2010-12-16 Sfs Intec Holding Ag Selbstbohrende Schraube
DE102010063675A1 (de) * 2010-12-21 2012-06-21 Hilti Aktiengesellschaft Schraubanker
DE102012216117A1 (de) 2012-09-12 2014-03-13 Hilti Aktiengesellschaft Verfahren zum Herstellen einer selbstschneidenden Schraube
DE102014204598A1 (de) * 2014-03-12 2015-09-17 Ejot Gmbh & Co. Kg Zweistahlschraube mit Fließpressverbindung
EP2960002A3 (fr) * 2014-06-17 2016-04-20 United Technologies Corporation Systèmes et procédés de soudage de matériaux dissemblables
DE102015106561A1 (de) * 2015-04-28 2016-11-03 Airbus Operations Gmbh Befestigungsvorrichtung zum kraftschlüssigen Verbinden von Strukturbauteilen
FR3042831A1 (fr) * 2015-10-27 2017-04-28 A Raymond Et Cie Rivet auto-perceur a haute resistance mecanique a l'arrachement et au cisaillement
EP3267052A1 (fr) * 2016-07-08 2018-01-10 HILTI Aktiengesellschaft Vis et procédé de fabrication
EP3536812A1 (fr) * 2018-03-08 2019-09-11 HILTI Aktiengesellschaft Vis composée de deux métaux à acier marténsitique thermodurcissable
WO2023285166A1 (fr) * 2021-07-14 2023-01-19 Fischerwerke Gmbh & Co. Kg Procédé de fabrication d'une vis bimétallique et vis bimétallique ainsi obtenue

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD764267S1 (en) * 2015-07-07 2016-08-23 Physical Systems, Inc. Hollow screw
JP6357134B2 (ja) * 2015-07-10 2018-07-11 平田ネジ株式会社 バイメタルねじ用ブランク製造システムおよび製造方法

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE522727A (fr) * 1952-09-11
US2153702A (en) * 1935-05-22 1939-04-11 Rustless Iron And Steel Corp O Fastening device
US2159916A (en) * 1937-12-01 1939-05-23 Vanco Products Process for electric flash percussive welding
GB606572A (en) * 1945-09-05 1948-08-17 Standard Telephones Cables Ltd Improvements in or relating to electrical welding
US2855817A (en) * 1954-02-01 1958-10-14 Olin Mathieson Projectile fastener for penetration into materials of varying resistance to penetration
US2914983A (en) * 1953-12-09 1959-12-01 Olin Mathieson Explosively driven fastener having axially collapsible radially expandable locking sleeve
US3433921A (en) * 1966-05-06 1969-03-18 Western Electric Co Apparatus and method for indicating defective welds
US3573417A (en) * 1967-09-29 1971-04-06 Micro Miniature Parts Corp Welding pack and method of welding small work pieces
FR2253582A1 (fr) * 1973-12-08 1975-07-04 Tucker Fasteners Ltd
US3935786A (en) * 1974-11-01 1976-02-03 Illinois Tool Works Inc. Self-drilling rivet
FR2329886A1 (fr) * 1975-11-03 1977-05-27 Itw Ateco Gmbh Vis perceuse et autotaraudeuse
US4293258A (en) * 1977-10-04 1981-10-06 Microdot Inc. Self drilling blind rivet

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2153702A (en) * 1935-05-22 1939-04-11 Rustless Iron And Steel Corp O Fastening device
US2159916A (en) * 1937-12-01 1939-05-23 Vanco Products Process for electric flash percussive welding
GB606572A (en) * 1945-09-05 1948-08-17 Standard Telephones Cables Ltd Improvements in or relating to electrical welding
BE522727A (fr) * 1952-09-11
US2914983A (en) * 1953-12-09 1959-12-01 Olin Mathieson Explosively driven fastener having axially collapsible radially expandable locking sleeve
US2855817A (en) * 1954-02-01 1958-10-14 Olin Mathieson Projectile fastener for penetration into materials of varying resistance to penetration
US3433921A (en) * 1966-05-06 1969-03-18 Western Electric Co Apparatus and method for indicating defective welds
US3573417A (en) * 1967-09-29 1971-04-06 Micro Miniature Parts Corp Welding pack and method of welding small work pieces
FR2253582A1 (fr) * 1973-12-08 1975-07-04 Tucker Fasteners Ltd
US3935786A (en) * 1974-11-01 1976-02-03 Illinois Tool Works Inc. Self-drilling rivet
FR2329886A1 (fr) * 1975-11-03 1977-05-27 Itw Ateco Gmbh Vis perceuse et autotaraudeuse
US4293258A (en) * 1977-10-04 1981-10-06 Microdot Inc. Self drilling blind rivet

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4998853A (en) * 1989-01-25 1991-03-12 Yugenkaisha Shinjo Seisakusho Self-drilling blind rivet and method for making same
US5190425A (en) * 1991-10-21 1993-03-02 Illinois Tool Works Inc. Anchor
EP0545852A1 (fr) * 1991-12-02 1993-06-09 HILTI Aktiengesellschaft Clou résistant à la corrosion pour l'enfoncement dans des matériaux durs
EP0572598B1 (fr) * 1991-12-18 1995-10-18 SFS Industrie Holding AG Rivet aveugle tirant autoforeur
DE4216198A1 (de) * 1992-05-15 1993-11-18 Sfs Stadler Holding Ag Heerbru Selbstbohrende und -gewindeschneidende Schraube
DE19540848A1 (de) * 1995-10-30 1997-05-28 Hettich Ludwig & Co Schraube und Verfahren zu ihrer Herstellung
WO1997016652A1 (fr) * 1995-10-30 1997-05-09 Ludwig Hettich & Co. Vis et son procede de production
WO1997027021A1 (fr) * 1996-01-23 1997-07-31 Fixinox Gesellschaft Zur Entwicklung Rationeller Befestigungs- Und Montagesysteme Mbh Procede de production d'elements de fixation
DE19613919C1 (de) * 1996-04-06 1997-06-19 Daimler Benz Ag Kopfschraube
DE10118678B4 (de) * 2001-04-14 2005-10-13 Harald Zahn Gmbh Befestigungssystem zur mechanischen Befestigung von Dämm- und Dichtungsmateriallien auf Flachdächern
WO2003002879A3 (fr) * 2001-06-26 2003-02-20 Reck Engineering Ecrou a river aveugle autoperforant
WO2006108369A1 (fr) * 2005-04-12 2006-10-19 Acument Gmbh & Co. Ohg Vis
EP1923151A1 (fr) * 2007-07-24 2008-05-21 Top Well Tech Corp Procédé de fabrication d'une vis bimétallique
DE102009023895A1 (de) * 2009-06-04 2010-12-16 Sfs Intec Holding Ag Selbstbohrende Schraube
DE102010063675A1 (de) * 2010-12-21 2012-06-21 Hilti Aktiengesellschaft Schraubanker
WO2014040995A1 (fr) 2012-09-12 2014-03-20 Hilti Aktiengesellschaft Procédé de fabrication d'une vis autotaraudeuse
DE102012216117A1 (de) 2012-09-12 2014-03-13 Hilti Aktiengesellschaft Verfahren zum Herstellen einer selbstschneidenden Schraube
US10451101B2 (en) 2014-03-12 2019-10-22 Ejot Gmbh & Co. Kg Two-steel screw with an extrusion connection and method for producing said screw
DE102014204598A1 (de) * 2014-03-12 2015-09-17 Ejot Gmbh & Co. Kg Zweistahlschraube mit Fließpressverbindung
EP2960002A3 (fr) * 2014-06-17 2016-04-20 United Technologies Corporation Systèmes et procédés de soudage de matériaux dissemblables
US11033986B2 (en) 2014-06-17 2021-06-15 Raytheon Technologies Corporation Systems and methods for dissimilar material welding
EP3693119A3 (fr) * 2014-06-17 2020-12-23 United Technologies Corporation Systèmes et procédés pour soudage de matériaux dissemblables
DE102015106561A1 (de) * 2015-04-28 2016-11-03 Airbus Operations Gmbh Befestigungsvorrichtung zum kraftschlüssigen Verbinden von Strukturbauteilen
FR3042831A1 (fr) * 2015-10-27 2017-04-28 A Raymond Et Cie Rivet auto-perceur a haute resistance mecanique a l'arrachement et au cisaillement
CN108350918A (zh) * 2015-10-27 2018-07-31 A·雷蒙德公司 抗撕裂和剪切的具有高机械强度的自冲铆钉
WO2017072430A1 (fr) 2015-10-27 2017-05-04 A Raymond Et Cie Rivet auto-perceur a haute resistance mecanique a l'arrachement et au cisaillement
CN109312771A (zh) * 2016-07-08 2019-02-05 喜利得股份公司 螺钉和制造方法
WO2018007195A1 (fr) * 2016-07-08 2018-01-11 Hilti Aktiengesellschaft Vis et procédé de fabrication
EP3267052A1 (fr) * 2016-07-08 2018-01-10 HILTI Aktiengesellschaft Vis et procédé de fabrication
EP3536812A1 (fr) * 2018-03-08 2019-09-11 HILTI Aktiengesellschaft Vis composée de deux métaux à acier marténsitique thermodurcissable
WO2019170507A1 (fr) * 2018-03-08 2019-09-12 Hilti Aktiengesellschaft Vis bi-métal en acier martensitique durcissable
WO2023285166A1 (fr) * 2021-07-14 2023-01-19 Fischerwerke Gmbh & Co. Kg Procédé de fabrication d'une vis bimétallique et vis bimétallique ainsi obtenue

Also Published As

Publication number Publication date
WO1988005991A3 (fr) 1988-11-03
FI884782A0 (fi) 1988-10-17
EP0303634A1 (fr) 1989-02-22
FI884782A (fi) 1988-10-17
JPH0615428B2 (ja) 1994-03-02
AU1152588A (en) 1988-09-14
JPH01502210A (ja) 1989-08-03

Similar Documents

Publication Publication Date Title
WO1988005991A2 (fr) Dispositif de fixation et son procede de fabrication
EP1926918B2 (fr) Procede d'etablissement d'une liaison clouee et clou pour ce procede
DE102007033126B4 (de) Verfahren zum Herstellen einer Nagelverbindung sowie Nagel hierfür
EP1918596B1 (fr) Rivet aveugle et son utilisation
DE2549147C2 (de) Bohrschraube
EP2855069A1 (fr) Élément d'aide au soudage muni d'une partie pointue à déformation plastique ; procédé pour assembler des pièces au moyen de cet élément d'aide au soudage
EP0799387B1 (fr) Vis foreuse et taraudeuse et son procede de vissage
WO2014048885A2 (fr) Pièce de jonction d'aide au soudage et procédé pour relier des éléments à l'aide de cette pièce de jonction d'aide au soudage
DE3715104A1 (de) Verfahren zum verbinden eines zylindrischen metallstabes mit einer metallplatte und fuer dieses verfahren geeigneter metallstab
WO2003002879A2 (fr) Ecrou a river aveugle autoperforant
DE102011001522B4 (de) Verbindungselement zur Herstellung einer Verbindung zwischen wenigstens zwei sich überlappenden Bauteilen und Verfahren zur Herstellung dieser Verbindung
EP2191152A2 (fr) Rivet aveugle
EP1503089B1 (fr) Méthode d'assemblage de pièces accessibles d'un seul côté et assemblage de telles pièces
DE202006000666U1 (de) Verbindungsanordnung zum Verbinden zweier Bauteile mittels eines Nagels
EP3752742A1 (fr) Élément d'assemblage
DE19531016C2 (de) Verbindungselement, nach Art eines Niets
DE10325431A1 (de) Verbindungsanordnung zweier Bauteile mit einem Blindniet und Verfahren zum Vernieten zweier Bauteile
DE19949161A1 (de) Befestigungsanordnung zum Befestigen eines Nietelementes an einem plattenförmigen Bauteil
DE102009035725A1 (de) Selbstlochender Blindniet
DE102014211093A1 (de) Loch- und gewindeformende Schraube
DE102019203051A1 (de) Befestigungselement zum Reibschweißen sowie Verfahren zum Reibschweißen eines Befestigungselements an ein flächiges Werkstück
DE1912996C3 (de) Preßsitzverbindung von Bauteilen, insbesondere für Konstruktionen der Luftfahrtindustrie
EP4316686A1 (fr) Procédé et dispositif d'assemblage d'un corps de vis d'une vis à béton
EP4033113A1 (fr) Élément fonctionnel d'auto-poinçonnage, pièce d'assemblage et procédé de fabrication d'une pièce d'assemblage
DE1064761B (de) Passstift mit geriffeltem Schaft

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AT AU BB BG BR CH DE DK FI GB HU JP KP KR LK LU MC MG MW NL NO RO SD SE SU US

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): AT BE BJ CF CG CH CM DE FR GA GB IT LU ML MR NL SE SN TD TG

WWE Wipo information: entry into national phase

Ref document number: 1988901036

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 884782

Country of ref document: FI

AK Designated states

Kind code of ref document: A3

Designated state(s): AT AU BB BG BR CH DE DK FI GB HU JP KP KR LK LU MC MG MW NL NO RO SD SE SU

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): AT BE BJ CF CG CH CM DE FR GA GB IT LU ML MR NL SE SN TD TG

WWP Wipo information: published in national office

Ref document number: 1988901036

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

WWW Wipo information: withdrawn in national office

Ref document number: 1988901036

Country of ref document: EP