[go: up one dir, main page]

EP1750890A1 - Procede, dispositif et installation pour souder des elements a l'aide de la technique de soudage par friction malaxage - Google Patents

Procede, dispositif et installation pour souder des elements a l'aide de la technique de soudage par friction malaxage

Info

Publication number
EP1750890A1
EP1750890A1 EP05741846A EP05741846A EP1750890A1 EP 1750890 A1 EP1750890 A1 EP 1750890A1 EP 05741846 A EP05741846 A EP 05741846A EP 05741846 A EP05741846 A EP 05741846A EP 1750890 A1 EP1750890 A1 EP 1750890A1
Authority
EP
European Patent Office
Prior art keywords
elements
friction
welding
friction welding
pressure
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.)
Withdrawn
Application number
EP05741846A
Other languages
German (de)
English (en)
Inventor
Klaus Ritter
Josef Grabuschnig
Robert Tremmel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EVG Entwicklungs und Verwertungs GmbH
Original Assignee
EVG Entwicklungs und Verwertungs GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by EVG Entwicklungs und Verwertungs GmbH filed Critical EVG Entwicklungs und Verwertungs GmbH
Publication of EP1750890A1 publication Critical patent/EP1750890A1/fr
Withdrawn legal-status Critical Current

Links

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
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir 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
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • B23K20/129—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding specially adapted for particular articles or workpieces
    • 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
    • B23K2101/22—Nets, wire fabrics or the like

Definitions

  • the invention relates to a method for welding two elongated elements crossing one another at a predetermined angle using the friction stir welding method, a method for producing lattice products from groups of longitudinal and transverse elements crossing perpendicularly and welded to one another at the points of intersection using the friction stir welding method , and a friction stir welding device and a friction stir welding system for producing such mesh products. From AT-B-302 789 a method and a device for producing welded grids according to the friction welding method are known.
  • the longitudinal wires are held at a distance from one another in the area of a welding line running transversely to them, and the cross wire to be welded is stretched out along this welding line and set in a reciprocating movement with high frequency and small amplitude in the direction of the welding line, at the crossing points of the cross wire pressure forces are brought into effect with the longitudinal wires, so that the longitudinal wires and the transverse wire are heated at their points of contact by frictional heat.
  • the transverse movement of the cross wire is stopped and the contact forces between the cross wire and the longitudinal wires are increased, whereby the cross wire is welded to the longitudinal wires.
  • DE-AI 198 07 457 discloses a method and a device for friction welding railroad tracks.
  • the rail ends to be connected are brought into mutual distance by two clamping devices, into which an intermediate piece is inserted.
  • the intermediate piece is moved in a linear or orbitally oscillating manner between the rail ends to be connected, the two rail ends being pressed towards one another in order to generate the heat required for welding by frictional energy on the two contact surfaces between one of the rail ends and one cut surface of the intermediate piece.
  • the intermediate piece Since the intermediate piece is welded to the rail ends, it is made of the same material as the rails and also has the same cross-sectional shape.
  • This method and this device have the disadvantage that the shape of the intermediate piece must be adapted exactly to the elements to be connected and must be renewed for each connection.
  • the object of the invention is to avoid the disadvantages of the known devices and to create a method and a device of the type specified in the introduction, which makes it possible to connect elongated elements by friction stir welding, and by friction stir welding a grid product from one another and crossing into one another To produce intersections of welded sheets of longitudinal and transverse elements.
  • the method according to the invention has the features that the elements are fixed at a predetermined distance from one another and a friction welding tool is introduced into the opening gap formed by the elements at a predetermined feed angle to the elements, so that the friction welding tool makes a movement relative to the elements with high frequency and is preferably carried out with a small amplitude and at least one of the elements is pressed onto the friction welding tool with a predetermined pressure, the friction of the friction welding tool on the elements with a predetermined contact pressure and predetermined duration at least affecting the friction welding tool neighboring areas of the elements are heated to a melting temperature necessary for welding the elements, that after reaching this melting temperature the friction welding tool is quickly pulled out of the area of the elements, the contact pressure between the friction welding tool and the elements to be connected being reduced briefly and immediately after pulling out of the friction welding tool is increased to a maximum value in the shortest possible time, and that finally for welding the elements, the elements in the area of the crossing point are pressed together with a predetermined pressure and with a predetermined duration.
  • the invention further relates to a method for producing lattice products from sets of longitudinal and transverse elements which cross perpendicularly and are welded to one another at the crossing points, this method being characterized in that a friction welding tool is provided in each opening gap formed by the longitudinal and transverse elements Simultaneously inserted and pulled out of the respective opening gap, that the longitudinal elements and / or the transverse elements are moved relative to each other for welding the longitudinal and transverse elements, and that after solidification of the crossing points, the longitudinal elements and the transverse elements welded to them are transported further by a selectable length ,
  • the invention further relates to a friction stir welding device for carrying out the method, with a friction welding device which has a friction welding tool, characterized in that a device for forming an opening gap between the elements and at least one fixing device for fixing the elements to be welded is provided in that the friction welding tool has an elongated, preferably rotationally symmetrical shape and is interchangeably arranged in the friction welding device, that at least one feed device is provided for
  • the subject of the invention is a welding system operating according to the friction stir welding method for producing lattice products from sheets of longitudinal and transverse elements which cross perpendicularly and are welded to one another at the crossing points, with devices for advancing the longitudinal elements along a feed plane and for feeding the transverse elements into the region of the Feed plane, and with devices for moving the longitudinal and / or transverse elements relative to one another, characterized in that in the welding line of the friction stir welding system, a device for forming the opening gap between the longitudinal elements and the transverse element to be welded and for fixing the transverse element and a fixing device for fixing the longitudinal elements, it is provided that a friction welding device is provided for each crossing point, with all friction welding devices being arranged on a bracket and an elongated, preferably rotati, each Have onsymmetric friction welding tool, the dimensions of the effective area can be adapted to the dimensions of the longitudinal and transverse elements to be welded, that for the common insertion and removal of the friction welding tools of all friction welding devices into and out of the friction
  • FIG. 1 a * a schematic side view of a friction stir welding head for carrying out the method according to the invention for welding two elongate elements in the starting position
  • Fig. Lb is a schematic side view of another embodiment of a friction stir welding head in the working position
  • Fig. 2 is a schematic plan view of the friction stir welding head according to Fig. La
  • 4 is a working diagram which schematically shows the initial contact pressure between the friction welding tool of the friction welding device and the elements to be connected and the subsequent welding pressure between the two elements to be welded, each as a function of time
  • FIGS. 1 a, 1 b, 2, 3 a, 3 b and 3 c show a schematic plan view of a grid friction stir welding system for carrying out the method according to the invention and using the friction stir welding heads according to FIGS. 1 a, 1 b, 2, 3 a, 3 b and 3 c.
  • La, 2, 3a, 3b and 3c schematically shown friction stir welding head 1 is used to weld two elongated elements L and Q, which are arranged at a selectable angle and welded together at an intersection point K.
  • the elements L, Q can have any cross-sections within the scope of the invention.
  • the elements L, Q can NEN, for example, have round cross sections with a smooth or ribbed surface, the diameters being different.
  • the elements L, Q can also have different cross-sectional shapes, for example the element L can be a flat band, while the element Q has a round or polygonal cross-sectional shape.
  • the elements L, Q to be connected can consist of the same or different materials within the scope of the invention.
  • the elongated elements L, Q are fed into the position shown in FIG. 1 a by means not shown and are positioned there at a mutual distance A, the so-called opening gap, and at a selectable angle.
  • the elements Q and L are fixed relative to one another with the aid of a fixing device 2 or with the aid of a welding anvil 3. With the aid of a feed device 4, starting from the starting position 1 shown in FIG.
  • a friction welding device 5 is advanced in the corresponding direction of the double arrow P1 until a friction welding tool 6 of the friction welding device 5 projects into the opening gap A with its effective surface.
  • the friction welding tool 6 is exchangeably fastened in a holder 7.
  • the feed angle Z can be selected between the feed direction Pl and the elements L, Q. Given the same dimensions of the elements L, Q, it has proven to be advantageous to select the feed direction Pl of the friction welding device 5 such that the feed angle Z to the crossing elements L, Q is half as large as the angle between the elements L, Q , ie the angle between the two elements L, Q is halved by the feed direction Pl.
  • the friction welding device 5 is arranged displaceably on a bracket 8 in accordance with the directions of the double arrow P1.
  • the friction welding tool 6 preferably has a rotating Onsymmetrical cross-sectional area and, as shown in Fig. 3a, for example, cylindrical shape, the longitudinal axis of the friction welding tool 6 is coaxial with the feed direction Pl.
  • the friction welding tool ⁇ ′′ can have a rounded, preferably parabolic shape at its end.
  • the friction welding tool can also have a conical shape with a rounded tip.
  • the dimensions of the friction welding tool 6, 6 ', 6'' are adapted to the dimensions of the elements L, Q to be welded and to the dimensions of the welding point of the welded elements L, Q which is created at the intersection point K.
  • the dimensions of the friction welding tool 6, 6 ', 6''of the friction welding device 5, which run perpendicular to the feed direction P1 and parallel to the element plane EE formed by the welded elements L, Q, are adapted to the dimensions of the elements L, Q to be welded , the dimensions of the friction welding tool 6, 6 ', ⁇ ''preferably being slightly larger than the maximum dimension of the welding point at the crossing point K that runs perpendicular to the feed direction Pl and parallel to the element plane EE welded elements L, Q are.
  • linear, oscillating movements P2, P3 (FIG. 2) of the friction welding tool 6, 6 ', 6''of the friction welding device 5 to have the effective surfaces of the friction welding tool 6, 6', 6 'running parallel to the element plane EE.
  • the widths of the effective surfaces running perpendicular to the feed direction Pl being adaptable to the dimensions of the elements L, Q to be connected, and these widths of the friction welding tool 6, 6', 6 '' preferably being slightly larger than the maximum, perpendicular to the feed direction Pl and the dimension of the welding point of the welded elements L, Q which arises at the intersection point K and run parallel to the element plane EE.
  • the surface 0 of the friction welding tool 6, 6 ', 6''of the friction welding device 5 can be shaped as desired within the scope of the invention.
  • the friction welding tool 6, 6 ', 6'' can for example have a roughened surface.
  • the friction welding tool 6, 6 ', ⁇ ''of the friction welding device 5 can be provided with a plurality of longitudinal grooves distributed around the circumference.
  • the friction welding tool 6, 6 ', 6''of the friction welding device 5 can also have a plurality of grooves running transversely to its longitudinal axis within the scope of the invention.
  • the friction welding tool 6, 6 ', 6''in the context of the invention can have helical grooves, the direction of rotation of the grooves being directed against the direction of rotation of the friction welding tool 6, 6', ⁇ ''.
  • the friction welding tool 6, 6 ', 6'' can consist of different materials within the scope of the invention. When selecting the material, however, care must be taken to ensure that the abrasion when rubbing the friction welding tool 6, 6 ', 6''on the surface of the elements L, Q to be connected is kept as low as possible and that the material is heat-resistant. Wear-resistant, coated steel qualities or ceramic material can be used as the material.
  • a pressing device 9 which has a pressure element 11 which can be raised and lowered by a controllable working cylinder 10, is applied to the element Q in the corresponding direction of the double arrow P4.
  • the pressure element 11 is designed, for example, as an exchangeable pressure stamp which, at its end facing the element Q, has a preferably exchangeable pressure insert 12 made of pressure-resistant, poorly heat-conducting material, so that when the element Q is heated by the friction of the friction welding tool 6, 6 ', 6'' on the element Q to avoid excessive heat flow from the element Q.
  • the pressure insert 12 has a correspondingly shaped guide groove which prevents the element Q from laterally escaping.
  • the welding anvil 3 has a pressure element 11 'which, at its end facing element Q, has a preferably exchangeable pressure insert 12' made of pressure-resistant, poorly heat-conducting material, so that when the element L is heated by the friction of the friction welding tool 6, 6 ', 6''To avoid excessive heat flow from the element L on the element L.
  • the pressure insert 12 ' has a correspondingly shaped guide groove which prevents the element L from laterally escaping.
  • the fixing device 2 is pivotably driven away in the corresponding direction of the double arrow P5 via its own drive device or is pressed away by the pressure element 11 of the pressure device 9.
  • the fixing device 2 it is possible to omit the fixing device 2 and bring the friction welding tool 6, 6 ', 6''on the lower element L into the friction position and then position the upper element Q on the friction welding tool 6, 6', ⁇ '' by the pressing device 9.
  • the friction welding tool 6, 6', 6 '' begins a movement relative to the elements L, Q, the so-called friction movement.
  • the frictional movement is generated by two drive devices 13 and 14 and, within the scope of the invention, can already be started during the insertion movement of the friction welding tool 6, 6 ', 6''into the opening gap A.
  • the friction welding tool 6, 6 ', 6''of the friction welding device 5 can carry out different friction movements to the elements L, Q within the scope of the invention, the selection of the friction movements depending on the dimensions and the material properties of the elements L, Q to be connected.
  • Each rubbing movement preferably has a high frequency and a small amplitude.
  • the friction welding tool 6, 6 ′, 6 ′′ of the friction welding device 5 can execute a rapidly rotating movement P6 about its longitudinal axis, which is carried out by the drive device 13.
  • the friction welding tool 6, 6 ′, 6 ′′ can execute an oscillating rotary movement P7 about its longitudinal axis, which is carried out by correspondingly controlling the drive device 13.
  • the friction welding tool 6, 6 ', 6'' can also perform oscillating linear movements within the scope of the invention. This can be either an oscillating movement P2 in the feed direction Pl or an oscillating movement P3 transverse to the feed direction Pl, these linear movements P2, P3 taking place by a corresponding control of the drive device 14.
  • the friction welding device 5 or only the friction welding tool 6, 6 ', 6'' is one Execute any combination of the various movement types P2, P3, P6 and P7.
  • a further pressure device 9 ′ which can be controlled simultaneously with the first pressure device 9 and the other element L with the same contact pressure as is exerted by the pressure device 8 on the friction welding tool 6, 6 ', 6''of the friction welding device 5.
  • This embodiment is particularly advantageous with different dimensions of the elements L, Q to be welded.
  • the pressure element 11 ' is then likewise designed as an exchangeable pressure stamp which can be raised and lowered by a controllable working cylinder 10' in the corresponding direction of the double arrow P4 '.
  • the contact pressure between the friction welding tool 6, 6 ', 6''and the elements L, Q can be selected and is continuously increased in this exemplary embodiment to a preselectable maximum value Ml. After reaching the maximum contact pressure during the frictional movement, identified by Tl in FIG. 4, it is held at this maximum value Ml for a selectable time until the necessary due to the friction of the friction welding tool 6, 6 ', 6''on the elements L, Q. Heat of fusion was generated and at least the regions of the elements L, Q adjacent to the friction welding tool 6, 6 ', 6''are heated to the melting temperature necessary for welding the elements L, Q.
  • the contact pressure required to heat the regions of the elements L, Q facing the friction welding tool 6, 6 ', 6''between the friction welding tool 6, 6', 6 '' and the elements L, Q can also be achieved by applying the friction welding tool 6, 6 ', 6''to the elements L, Q to be welded. This is achieved, for example, by a conical design of the friction welding tool and corresponding control of the feed device 4. This embodiment is preferably usable only for elements with small dimensions.
  • the contact pressure is briefly reduced to a value by moving the pressing device 9 and optionally the additional pressing device 9 'in the opposite direction of the double arrow P4 and possibly P4' it makes it possible to pull the friction welding tool 6, 6 ', 6''out of the opening gap A in the corresponding direction of the double arrow P1.
  • a suitable temperature measuring device can be provided for measuring the temperature.
  • the frictional movement is reduced to zero in terms of speed and amplitude, the reduction in the frictional speed and / or the reduction in the amplitude of the Material properties and the dimensions of the elements to be welded L, Q is dependent.
  • the pressure element 11 of the pressing device 9 of the element Q is considered to correspond to the directions of the double arrow P4 Movable welding stamp used and cooperates with the pressure element 11 'of the welding anvil 3 of the element L.
  • the pressure element 11 'of the pressing device 9' of the element L is used as a welding stamp movable in accordance with the directions of the double arrow P4 ', while the pressure element 11 of the pressing device 9 of the element Q is now fixed and acts as a fixed welding anvil.
  • the pressure elements 11, 11 'of the two pressing devices 9, 9' act as welding punches which are movable relative to one another in accordance with the directions of the double arrows P4, P4 '.
  • the contact pressure between the elements L, Q to be welded is as short as possible, ie abruptly increased to a preselectable maximum pressure M2 and kept at this maximum value M2 until the selectable welding end, identified by the point T4 in FIG. 4.
  • the welding pressure can fluctuate around the maximum value M2 with a selectable, preferably small, amplitude S.
  • the contact pressure is reduced to zero by moving the pressing device 9 and, if present, the pressing device 9 'in the corresponding opposite directions of the double arrows P, P4', so that the welded product, possibly after an additional cooling phase, Friction stir welding head 1 can be removed.
  • the longitudinal and transverse elements can have any desired cross sections within the scope of the invention.
  • the longitudinal and transverse elements can, for example, have round cross sections with a smooth or ribbed surface, such as are used, for example, as wires of concrete reinforcement mats.
  • the longitudinal and transverse elements within a grid product can have different cross-sectional shapes, as is the case, for example, with gratings in which the longitudinal elements consist of flat strips, while the transverse elements preferably have round or polygonal cross-sectional shapes.
  • the grid friction stir welding system 15 has a welding unit for each longitudinal element L, which is constructed in accordance with the friction stir welding head 1, 1 'and welds the longitudinal elements L to the transverse elements Q using the same friction stir welding method.
  • the devices described in FIGS. 1 a, 1 b, 2, 3 a, 3 b, 3 c and 4 are essentially used.
  • the grid friction stir welding system 15 consists essentially of a feed device, not shown, for the longitudinal elements L, from a fixing device 16 for the longitudinal elements L, which extends over the entire working width of the grid friction stir welding system 15, from a positioning and fixing device 17 for the transverse elements Q, from a grid friction welding device 18 with a bracket 19 for a plurality of friction welding devices 5, from a feed device 20 for the bracket 19, from a plurality of pressing devices 9 for the cross element Q, and from a pull-out device 21 for the grid product G.
  • the fixing device 16 has a holder 22 which is arranged in a cross member 24 connecting two machine stands 23, 23 '.
  • a pressure bar 25 is attached which extends over the entire working width of the grid friction stir welding system 15 and which serves as a welding anvil when welding a transverse element Q to the longitudinal elements L, in which the longitudinal elements L are supported during pressing and which are preferably made of pressure-resistant, there is poorly heat-conducting material in order to avoid excessive heat flow from the longitudinal elements L when the longitudinal elements L are heated by the friction of the friction welding tool 6, 6 ', 6''on the longitudinal elements L.
  • the pressure bar 25 has a correspondingly shaped guide groove for each longitudinal element L, which prevents lateral deflection of the longitudinal elements L during the frictional movements P2, P3, P6, P7 and during welding to the transverse element Q.
  • a pressure element 11 with a pressure insert 12 'instead of the continuous pressure bar 25 for each longitudinal element L.
  • the pressure elements 11 ′ are arranged in the holder 22 so as to be displaceable in accordance with the directions of the double arrow P9 along the welding line WW.
  • a cross element Q is conveyed into the area of the welding line WW and is arranged and fixed there with the aid of the positioning and fixing device 17 at a selectable distance A transversely to the longitudinal elements L and parallel to the welding line WW.
  • the positioning and fixing device 17 has several, uniformly along the welding line WW distributed, pivoting away holding elements 2, which are arranged as close as possible to the associated pressing devices 9.
  • the grid friction welding device 18 has a friction welding device 5 at least for each longitudinal element L.
  • the console 19 of the grid friction welding device 18 is advanced with the aid of the central feed device 20 in accordance with the directions of the double arrow P10 until the friction welding tools 6, 6 ′, 6 ′′ of the friction welding devices 5 are positioned in the opening gaps A.
  • a pressing device 9 is provided for the transverse element Q, the pressing devices 9 being able to be positioned exactly in the position of the longitudinal elements L according to the directions of the double arrow P9 along the welding line WW.
  • the pressure elements 11 of the pressing devices 9 it is possible to design the pressure elements 11 of the pressing devices 9 as a pressing roller, the axis of which preferably runs perpendicular to the feed direction P1, P10 of the respective friction welding device 5.
  • the pressure roller is provided with a groove on the
  • the cross element Q is adapted, and is shaped, for example, hyperbolic.
  • the pressure elements 11 of all pressure devices 9 are applied to the cross element Q in the corresponding direction of the double arrow P4.
  • the holding elements 2 are pivoted away in the corresponding direction of the double arrow P5 and subsequently the transverse element Q is moved to the friction welding tools 6, 6 ′, 6 ′′ and then the friction welding tools 6 by the further movement of the pressure elements 11 in the same direction of the double arrow P4. 6 ', 6''pressed against the longitudinal elements L.
  • the pressure devices 9 ' can be moved along the welding line WW in order to adapt to different longitudinal element distances in accordance with the directions of the double arrow P9.
  • the pressure inserts 12, 12 'and, if appropriate, the entire pressure bar 25 or at least the surfaces of the pressure inserts 12, 12' and possibly the pressure bar 25 facing the transverse element Q or the longitudinal elements L are preferably made of pressure-resistant, poorly heat-conducting material so that after the end of the Heating the longitudinal and transverse elements L, Q by the friction of the friction welding tool 6, 6 ', 6''on the longitudinal and transverse elements L, Q to avoid excessive heat flow from the longitudinal and transverse elements L, Q.
  • the friction welding tools 6, 6 ', 6''of the friction welding devices 5 are converted into a corresponding relative movement, the so-called friction movement, with the longitudinal elements L and the cross element Q offset.
  • This frictional movement is of the same type as the above-described frictional movements when welding individual elements L, Q.
  • An additional contact pressure can be generated by the contact 9 and / or 9 '.
  • This procedure is particularly advantageous in the case of cone-shaped friction welding tools 6, 6 ', 6'', since the contact pressure between the friction welding tools 6, 6, 6', 6 '' in the feed direction Pl is due to the cone shape and a controlled feed of the friction welding tools 6, 6 ', 6''. 6 ', 6''and the longitudinal and transverse elements L, Q can be finely metered.
  • the further procedure for applying the contact pressure, for pulling out the friction welding devices 5, and for welding the transverse element Q to the longitudinal elements L corresponds to the procedure described above for welding the elongated elements L and Q using the friction stir welding head 1, 1 '.
  • the first method of operation is preferably used for welding, in which the pressure elements 11 of the pressure devices 9 for the cross element Q are used as welding stamps movable in accordance with the directions of the double arrow P4 and with the fixed pressure bar 25 or the pressure elements 11 'of the welding boss 16 of the longitudinal elements L cooperate.
  • a temperature measuring device (not shown) is provided, which measures the temperature of the cross element Q and / or the longitudinal element L at least at a crossing point K and for controlling the central feed device 20 for the bracket 19 of the friction welding devices 5, the individual feed devices 4 the friction welding devices 5, the pressing devices 9 for the transverse element Q, the pressing devices 9 'for the longitudinal elements L, the drive devices 13, 14 for the friction welding tools 6, 6', 6 '' of the friction welding devices 5, and optionally the central drive devices 26, 27 for the rubbing movements is used.
  • the temperature measuring device preferably works without contact, for example according to the infrared measuring method.
  • the longitudinal elements L with the welded cross element Q ' are pulled out in the direction of the arrow by means of the pull-out device 21 by a selectable length which corresponds to the distance of the cross elements Q' in the lattice product G to be produced, the so-called cross element division P7 'transported further in order to feed a new cross element Q and to be able to weld it to the longitudinal elements L.
  • the pull-out device 21 has a carriage 29 which can be moved on and against the direction P7 'on two lanes 28, 28' and which is provided with a plurality of pull-out hooks 30 which engage the transverse elements Q '.
  • the welding of the cross members Q is repeated until the lattice product G is completely welded.
  • the longitudinal elements L of the finished welded mesh product G must be separated from the endless material strands in a final work step.
  • a control device is provided which, programmed by the welding program, matches the movement sequences of the above-mentioned devices to one another.
  • the friction stir welding method described and the exemplary embodiments shown can be designed in various ways within the scope of the general inventive concept.
  • the friction welding tool is made of the same material as the elements L, Q to be welded and has the same material properties and dimensions as these. Due to the frictional movements of the friction welding tool relative to the elements L, Q, both the layers of the elements L, Q facing the friction welding tool and those of the elements L, Q are turned layers of the friction welding tool heated to melting temperature.
  • the contact pressure between the friction welding tool and the elements L, Q to be welded is not reduced, but remains at least the same size.
  • the friction welding tool is separated from the material strand of the friction welding tool and remains at the crossing point K.
  • the friction welding tool can be separated by a cutting device, a predetermined breaking point in the material strand of the friction welding tool, or by briefly increasing the speed or the amplitude of the frictional movement respectively.
  • the material strand of the friction welding tool or a new friction welding tool is brought from a material supply into the working position in the friction welding device 5.
  • This friction welding method and this embodiment of the friction welding tool is always used advantageously when a weakening of the welding point created at the intersection point K by a material discharge when the friction welding tool is withdrawn from the opening gap must be avoided.
  • This method and this exemplary embodiment can be used both with the individual friction stir welding head 1 and with the grid friction stir welding system 15.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)

Abstract

L'invention concerne un procédé et un dispositif pour souder deux éléments allongés (L, Q) qui se croisent selon un angle prédéterminé, au moyen d'une technique de soudage par friction malaxage. Le procédé selon l'invention est caractérisé en ce que les éléments sont fixés à une distance prédéfinie l'un de l'autre, en ce qu'un outil de soudage par friction (6, 6', 6'') est introduit (P1, P10) dans l'interstice d'ouverture (A) formé par lesdits éléments, selon un angle d'introduction prédéterminé (Z) par rapport aux éléments, en ce que l'outil de soudage par friction effectue un mouvement relatif par rapport aux éléments (L, Q) à une fréquence élevée. Selon l'invention, au moins un des éléments (L, Q) est pressé (P4, P4') contre l'outil de soudage par friction selon une pression prédéterminée, et au moins les zones des éléments qui sont adjacentes à l'outil de soudage par friction sont chauffées sous l'effet du frottement de manière à atteindre une température de fusion nécessaire au soudage. Une fois ladite température de fusion atteinte, l'outil de soudage par friction est rapidement retiré (P1, P10) de la zone des éléments. La pression appliquée est temporairement réduite de manière commandée, puis, immédiatement après le retrait de l'outil de soudage par friction, cette pression est augmentée de manière à atteindre une valeur maximale (M2, S) le plus rapidement possible. Finalement, pour souder les éléments, ceux-ci sont pressés l'un contre l'autre dans la zone du point de croisement (K), à l'aide d'une pression prédéterminée (M2) et pendant une durée prédéterminée.
EP05741846A 2004-05-21 2005-05-20 Procede, dispositif et installation pour souder des elements a l'aide de la technique de soudage par friction malaxage Withdrawn EP1750890A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0089104A AT501238B1 (de) 2004-05-21 2004-05-21 Verfahren, vorrichtung und anlage zum verschweissen von elementen nach der reibrührschweissmethode
PCT/AT2005/000172 WO2005113188A1 (fr) 2004-05-21 2005-05-20 Procede, dispositif et installation pour souder des elements a l'aide de la technique de soudage par friction malaxage

Publications (1)

Publication Number Publication Date
EP1750890A1 true EP1750890A1 (fr) 2007-02-14

Family

ID=34967626

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05741846A Withdrawn EP1750890A1 (fr) 2004-05-21 2005-05-20 Procede, dispositif et installation pour souder des elements a l'aide de la technique de soudage par friction malaxage

Country Status (3)

Country Link
EP (1) EP1750890A1 (fr)
AT (1) AT501238B1 (fr)
WO (1) WO2005113188A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT503471B1 (de) * 2006-03-21 2008-06-15 Evg Entwicklung Verwert Ges Verfahren und vorrichtung zum verbinden von metallischen elementen nach der reibschweissmethode
CN106181156B (zh) * 2016-08-31 2018-09-28 建科机械（天津）股份有限公司 一种焊网机上横、纵筋排布结构及焊网机

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT302789B (de) * 1970-04-07 1972-10-25 Evg Entwicklung Verwert Ges Verfahren und Maschine zum Herstellen von geschweißten Gittern nach der Reibschweißmethode
JPH06328273A (ja) * 1993-05-20 1994-11-29 Daido Steel Co Ltd 金属棒ないし線材の接合方法
JPH0976082A (ja) * 1995-09-14 1997-03-25 Japan Steel & Tube Constr Co Ltd 交差棒鋼の接合方法及び接合装置
US6230958B1 (en) * 1999-09-30 2001-05-15 Lockheed Martin Corporation Friction pull plug welding: dual chamfered plate hole
JP3318610B2 (ja) * 2000-08-25 2002-08-26 名古屋大学長 摩擦充填接合方法
JP3472546B2 (ja) * 2000-10-11 2003-12-02 川崎重工業株式会社 スポット接合方法、スポット接合装置および被接合物

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005113188A1 *

Also Published As

Publication number Publication date
WO2005113188A1 (fr) 2005-12-01
AT501238B1 (de) 2007-02-15
AT501238A1 (de) 2006-07-15

Similar Documents

Publication Publication Date Title
EP0069108B1 (fr) Procédé et dispositif pour fabriquer des corps de matelas soudés
DE3702223A1 (de) Vorrichtung zur handhabung stangenfoermigen werkstueckmaterials bei einer saegemaschine
DE69321827T2 (de) Kombiniertes schneid- und schweissverfahren zur herstellung struktureller produkte, gerät zur durchführung eines solchen verfahrens und mittels dieses verfahrens hergestellter produkte
DE3327661C2 (de) Verfahren und Maschine zum Herstellen eines Siebes
EP0622170A2 (fr) Appareil pour la fabrication de pochettes d'insertion ou couvertures de livres
DE3010923A1 (de) Verfahren zum kontinuierlichen verarbeiten von stahlstaeben fuer bewehrten beton und vorrichtung zur durchfuehrung des verfahrens
DE2113196C3 (de) Verfahren und Maschine zum Herstellen von Drahtgittern durch Reibungsschweißen
AT501238B1 (de) Verfahren, vorrichtung und anlage zum verschweissen von elementen nach der reibrührschweissmethode
EP1321548A1 (fr) Procédé et dispositif pour enrouler et fixer des bandes d'ourdissage sur le tambour d'un ourdissoir sectionnel
WO1987006198A1 (fr) Procede et dispositif pour apposer des lignes de marquage sur une bande de fibres minerales contenant un liant
DE2507951C3 (de) Vorrichtung zum Schälen eines aus Metallegierung bestehenden Rohbandes
EP1124656B1 (fr) Procede et installation pour la production en continu d'elements de construction
AT395386B (de) Verfahren und anlage zum herstellen zweilagiger geschweisster gitterkoerper
WO1991012100A1 (fr) Dispositif de fabrication de rouleaux en un tissu d'acier a ressorts
EP1395378B1 (fr) Installation de production de composants en continu
DE3521670C2 (fr)
DE102021113027A1 (de) Vorrichtung zur Herstellung einer Metallgitter-Bewehrung
DE69806140T2 (de) Vorrichtung zum kaltschneiden von länglichen gegenständen entlang einer längsachse
DE60000888T2 (de) Ein Verfahren und eine Vorrichtung zur kontinuierlichen Herstellung von Förderschnecken für Archimedesförderschnecken
DE2034093C3 (de) Vorrichtung zum Herstellen von Platten mit Schaumstoff-Zwischenschicht
DE1602404C (de) Verfahren und Vorrichtung zum Herstellen von Rohrblechplatten mit gleichen Rohrverlaufmustern
DE2535480C2 (de) Verfahren und Vorrichtung zum Aussortieren von Unterlängen und/oder zum Schneiden vorbestimmter Längen aus Stabmaterial unterschiedlicher Längen
WO2007106921A1 (fr) PROCEDE ET DISPOSITIF DE SOUDAGE d'éléments EN MATERIAUX METALLIQUES
DE2651097A1 (de) Gitterschweissmaschine
DE1629383C3 (de) Vorrichtung zum Pressen und Erwärmen eines Bandes, insbesondere eines Treibriemens oder Fördergurtes

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20061117

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20111201