EP2720823A2 - Outil de soudage à tige tournante, procédé de soudage et pièce - Google Patents

Outil de soudage à tige tournante, procédé de soudage et pièce

Info

Publication number
EP2720823A2
EP2720823A2 EP12740292.3A EP12740292A EP2720823A2 EP 2720823 A2 EP2720823 A2 EP 2720823A2 EP 12740292 A EP12740292 A EP 12740292A EP 2720823 A2 EP2720823 A2 EP 2720823A2
Authority
EP
European Patent Office
Prior art keywords
shoulder
probe
welding tool
welding
axis
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.)
Ceased
Application number
EP12740292.3A
Other languages
German (de)
English (en)
Inventor
Jürgen Silvanus
Erich Forster
Eric TAUSCHER
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.)
Airbus Defence and Space GmbH
Original Assignee
EADS Deutschland 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 EADS Deutschland GmbH filed Critical EADS Deutschland GmbH
Publication of EP2720823A2 publication Critical patent/EP2720823A2/fr
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/06—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin 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
    • B23K20/122—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
    • B23K20/1245—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 characterised by the apparatus
    • B23K20/1255—Tools therefor, e.g. characterised by the shape of the probe
    • 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
    • B23K20/1245—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 characterised by the apparatus
    • 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
    • B23K20/1265—Non-butt welded joints, e.g. overlap-joints, T-joints or spot welds

Definitions

  • the invention relates to a welding tool for connecting at least two workpieces to a connecting region by means of friction stir welding.
  • friction stir welding in contrast to friction welding, the friction energy is not generated by rotating one of the two workpieces to be joined relative to the other workpiece, but instead uses a wear-resistant welding tool that applies rotational energy to both workpieces at the same time. The following steps are performed:
  • the welding tool is pressed with a rotating probe with high force between the two workpieces to be joined until a probe enclosing shoulder of the welding tool comes to rest on the surface of the workpieces.
  • the rotating probe remains at the point of immersion for a short time, with the area between the shoulder of the welding tool and the workpieces heating to just below the melting point of the workpieces.
  • the material of the workpieces is softened and plasticized, so that a mixing between the materials of the workpieces to be joined in the connection region is possible.
  • the welding tool is moved in the feed direction, such that the shoulder continues to be pressed with great force onto the workpiece surface and the probe thus into the connection region. It arises during the feed movement, a pressure difference between the front of the
  • the welding tool accordingly has the probe and a shoulder disposed substantially perpendicular thereto with a larger diameter than the probe itself.
  • the shoulder serves to isolate the ambient air from the weld, while the probe is responsible for the swirling of the material. Since the material by the swirling for weld formation. is used, additional materials are not necessary.
  • Next can also be dispensed with a protective gas atmosphere.
  • the object of the invention is therefore to achieve a change in length of the probe with a simple tool structure, which is less susceptible to wear.
  • a welding tool for joining at least two workpieces by means of friction stir welding at a connection portion has a probe arranged along an axis of the welding tool for applying frictional heat to the workpieces and a shoulder enclosing the probe for separating the connection portion from the environment.
  • the shoulder is designed to be movable substantially parallel to the axis.
  • the shoulder has an elastic region. Then it can be advantageous simply by force parallel to the axis effecting a pushing back of the shoulder, so that the probe further protrudes from the shoulder. When the force is released, the shoulder expands again, so that the probe again enters the shoulder and thus advantageously allows shorter penetration depths.
  • the elastic region is formed by a spring arrangement. This is particularly easy to achieve by using heat-resistant materials. elasticity of the shoulder can be achieved. Alternatively, elastic materials can also be provided as cushions at a suitable point on the shoulder in order to be able to displace them parallel to the axis by the action of force.
  • the elastic region is formed on a shoulder end region, which is to be used in operation at least one of the workpieces.
  • a stable overall shoulder structure can be achieved, wherein only the lower region, namely the shoulder end region, has the elastic region and thus makes the shoulder movable parallel to the axis.
  • the probe has a projection in the direction of the axis for overhanging the shoulder end region.
  • This supernatant can also be referred to as the probe end region or probe tip.
  • a maximum possible path of movement of the shoulder substantially corresponds to the projection of the probe over the shoulder end region.
  • the maximum possible movement path between 0 to 10 mm, in particular between 2 to 4 mm, lie.
  • the probe is removably attached to a probe holder so that it preferably can be easily removed from the probe holder and replaced with a new probe.
  • the probe holder is rotatably mounted about the axis, so that rotates automatically upon rotation of the probe holder, the probe itself.
  • a rotatable mounting of the probe itself can thus be omitted preferably.
  • the shoulder is integrally formed with the probe holder. In such an arrangement, the shoulder can rotate simultaneously with the probe about the same axis at the same angular velocity.
  • the shoulder may be rotatably supported or fixedly disposed about the axis apart from the probe support.
  • a different angular velocity between the probe and the shoulder can be achieved, or the shoulder can firmly enclose the probe without rotation.
  • the probe holder is formed conically in longitudinal section along the axis. Then, the shoulder already extending along the probe support in the direction of the axis can be brought closer to the probe at the shoulder end region, whereby preferably a better sealing against the ambient air can be achieved.
  • the shoulder in longitudinal section along the axis is conical and / or substantially L-shaped.
  • a welding method for joining at least two workpieces with welding depths varying along a connecting region by friction stir welding using a welding tool described above comprises the following steps:
  • a workpiece is preferably made with the welding tool described above and / or with the welding method described above.
  • FIG. 1 shows a longitudinal section through a first embodiment of a welding tool according to the invention for friction stir welding with probe and shoulder.
  • FIG. 2 shows the welding tool from FIG. 1 during welding of a workpiece with a thick workpiece
  • FIG. 3 shows the welding tool from FIG. 1 during welding of a workpiece with a thin workpiece
  • FIG. 4 shows a second embodiment of a welding tool according to the invention from FIG. 1.
  • Fig. 1 shows a longitudinal section through a first embodiment of a
  • the probe 12 is attached to a probe holder 16 which is rotatably mounted about an axis A in the arrow direction.
  • the probe holder 16 is cylindrically shaped and the probe 12 tapers towards a probe end region 18 which projects through a shoulder opening 20 into an environment 22. The probe 12 is thus protruding beyond a projection I via a shoulder end region 24.
  • the shoulder 14 is arranged separately from the probe holder 16 and is movable in the direction of the arrow along the axis A.
  • the shoulder 14 is substantially cylindrical in shape about the axis A and has an L-shape in a longitudinal section, with beams 26 of the L-shape aligned in the longitudinal direction of the probe 12 being aligned with the probe 12.
  • FIGS. 2 and 3 show a welding process for connecting two workpieces 28, 30 to a connecting region 32 by means of friction stir welding using the welding tool 10.
  • the first workpiece 28 has a greater thickness than the first workpiece 28 in Fig. 3.
  • the first workpiece 28 in Fig. 2 for example, has a thickness of 4 mm
  • the probe 12 in FIG. 2 must dive deeper into the first workpiece 28 than in FIG. 3. This is achieved by shoulder 14 along the axis A is movable and thus the probe 12 can continue to emerge from the shoulder 14. It is thus also possible to weld workpieces 28, 30 together, which have welding depths 34 that change over the connecting region 32.
  • FIG. 4 shows a second embodiment of a welding tool 10.
  • the probe holder 16 and the shoulder 14 are tapered and taper towards the Schulterend Scheme 24.
  • the shoulder 14 and the probe holder 16 are mounted separately from each other, wherein the probe holder 16 is rotatable about the axis A. This is achieved by a spindle 36 to which the probe holder 16 is attached.
  • the shoulder 14 has an elastic region 37 in that the shoulder end region 24 is divided into two shoulder end regions 37a, 37b and a spring arrangement 38 is provided in the intermediate space between the shoulder end regions 37a, 37b. If a force F aligned substantially parallel to the axis A is applied to this spring arrangement 38, the spring arrangement 38 is compressed and the space between the first shoulder end portion 37a and the second shoulder end portion 37b is changed. In this case, the supernatant I of the probe 12 also changes over the shoulder 14. Essentially, the supernatant I corresponds to the maximum possible movement path of the second shoulder end portion 37b predetermined by the spring arrangement 38.
  • the probe 12 when welding with varying impact thickness, the probe 12 had either to be changed, with the welding process had to be interrupted before it could be continued with the modified or adapted probe 12.
  • a so-called retractable probe 12 was used. which could be moved vertically within the probe holder 16 in order to achieve a change in length of the probe 12.
  • a change in length of the probe 12 can now be achieved in that the probe 12 is not moved within the probe holder 16, but that the shoulder 14 is designed to be movable and / or elastic, in particular at the shoulder end region 24.
  • a deformation or deflection is effected via an introduction of force.
  • the free probe length 12 and thus the welding depth 34 correlate with the connection region 32.
  • the shoulder 14 may be rigid and non-rotating or may be formed with the probe 12 for co-rotation.
  • the probe 12 is preferably arranged on a spindle 36 which is rotatably mounted.
  • the probe 12 is not adjustable along the axis A, but the shoulder 14.
  • the projection I of the probe 12 via the shoulder 14 is controlled by the adjustment of the shoulder 14 along the axis A.
  • the adjustment of the shoulder 14 along the axis A is technically much easier to implement than an adjustment of the probe 12 and thus a simpler, more robust and cheaper probe projection is achieved. No additional control is required, the supernatant I is regulated only by the introduction of a force.
  • variable weld depth 34 of the probe 12 different web and flange thicknesses can be interconnected.

Landscapes

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

Abstract

L'invention concerne un outil de soudage (10) pour relier au moins deux pièces (28, 30) au niveau d'une zone de liaison (32), par soudage par friction-malaxage. L'outil de soudage (10) comporte une tige (12) disposée le long d'un axe (A) de l'outil de soudage (10) pour l'application de chaleur par frottement sur les pièces (28, 30), ainsi qu'un épaulement (14) entourant la tige (12) pour séparer la zone de liaison (32) d'un l'environnement (22). L'épaulement (14) est conçu pour être mobile, sensiblement parallèlement à l'axe (A) L'invention concerne également un procédé de soudage, ainsi qu'une pièce (33) réalisée au moyen dudit outil de soudage (10) ou dudit procédé de soudage.
EP12740292.3A 2011-06-15 2012-06-01 Outil de soudage à tige tournante, procédé de soudage et pièce Ceased EP2720823A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011106506A DE102011106506A1 (de) 2011-06-15 2011-06-15 Schweißwerkzeug zum Verbinden von wenigstens zwei Werkstücken, Schweißverfahren und Werkstück
PCT/DE2012/000577 WO2012171523A2 (fr) 2011-06-15 2012-06-01 Outil de soudage à tige tournante, procédé de soudage et pièce

Publications (1)

Publication Number Publication Date
EP2720823A2 true EP2720823A2 (fr) 2014-04-23

Family

ID=46582480

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12740292.3A Ceased EP2720823A2 (fr) 2011-06-15 2012-06-01 Outil de soudage à tige tournante, procédé de soudage et pièce

Country Status (4)

Country Link
US (1) US9796133B2 (fr)
EP (1) EP2720823A2 (fr)
DE (1) DE102011106506A1 (fr)
WO (1) WO2012171523A2 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5204928B1 (ja) * 2011-10-14 2013-06-05 日本車輌製造株式会社 摩擦撹拌接合装置
JP5988265B2 (ja) * 2012-09-24 2016-09-07 国立大学法人大阪大学 金属材の接合方法及び金属材の接合装置
JP6084887B2 (ja) * 2013-04-16 2017-02-22 川崎重工業株式会社 摩擦撹拌接合装置および摩擦撹拌接合方法
DE102015005407A1 (de) * 2015-04-29 2016-11-03 Airbus Defence and Space GmbH Rührreibschweißen von Thermoplasten
US10589375B2 (en) * 2015-06-02 2020-03-17 Honda Motor Co., Ltd. Friction stir weld tool and method
CN105108299A (zh) * 2015-08-28 2015-12-02 昆山斯格威电子科技有限公司 一种焊接厚度可调的搅拌摩擦点焊设备
CN105108302A (zh) * 2015-08-28 2015-12-02 昆山斯格威电子科技有限公司 一种便携式搅拌摩擦点焊设备
WO2017210504A1 (fr) * 2016-06-03 2017-12-07 University Of South Carolina Tête de soudage et procédé d'utilisation avec des éléments polymères
DE102016113289A1 (de) * 2016-07-19 2018-01-25 Kuka Industries Gmbh FSW-Werkzeug mit fester Schulter
JP2018030167A (ja) * 2016-08-26 2018-03-01 株式会社山本金属製作所 摩擦攪拌接合用回転ツール
US10799980B2 (en) * 2016-10-06 2020-10-13 Mazak Corporation Compressible friction stir welding tool for conventional machining equipment
US10456858B2 (en) * 2018-03-30 2019-10-29 Esab Ab Welding head for friction stir welding
CN111761198A (zh) * 2019-04-02 2020-10-13 烟台丛林精密机械有限公司 一种搅拌摩擦焊装置及焊接方法
CN110860780B (zh) * 2019-11-20 2021-11-16 上海航天设备制造总厂有限公司 一种自润滑随焊摩擦拘束微搅拌摩擦焊方法

Citations (2)

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US5718366A (en) * 1996-05-31 1998-02-17 The Boeing Company Friction stir welding tool for welding variable thickness workpieces
WO2009056759A2 (fr) * 2007-10-29 2009-05-07 European Aeronautic Defence And Space Company Eads France Dispositif de soudage a double epaulement et actionneur unique et procede de soudage de pieces par friction malaxage

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US3821048A (en) * 1973-03-02 1974-06-28 Scm Corp Ultrasonic ribbon splicer
US6138895A (en) 1998-06-25 2000-10-31 The Boeing Company Manual adjustable probe tool for friction stir welding
EP1105246B1 (fr) * 1998-07-09 2011-04-27 Mts Systems Corporation Tete de soudage
US6758382B1 (en) * 2003-05-02 2004-07-06 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Auto-adjustable tool for self-reacting and conventional friction stir welding
JP4754256B2 (ja) 2005-04-19 2011-08-24 住友軽金属工業株式会社 摩擦撹拌点接合用回転工具及びそれを用いた摩擦撹拌点接合方法
US20070057015A1 (en) 2005-09-09 2007-03-15 Kevin Colligan Tapered friction stir welding and processing tool
DE102005060178B4 (de) 2005-12-14 2010-04-15 Eads Deutschland Gmbh Reibrühr-Werkzeug mit formanpassbarer Schulter und dessen Verwendung
US20080099533A1 (en) * 2006-10-31 2008-05-01 General Electric Method for controlling microstructure via thermally managed solid state joining
EP2255918A1 (fr) 2008-03-03 2010-12-01 Fundacion Fatronik Machine-outil pour le soudage par friction-malaxage

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5718366A (en) * 1996-05-31 1998-02-17 The Boeing Company Friction stir welding tool for welding variable thickness workpieces
WO2009056759A2 (fr) * 2007-10-29 2009-05-07 European Aeronautic Defence And Space Company Eads France Dispositif de soudage a double epaulement et actionneur unique et procede de soudage de pieces par friction malaxage

Also Published As

Publication number Publication date
US20140326392A1 (en) 2014-11-06
US9796133B2 (en) 2017-10-24
DE102011106506A1 (de) 2012-12-20
WO2012171523A2 (fr) 2012-12-20
WO2012171523A3 (fr) 2013-04-04

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