EP1362648B1 - Procédé de fabrication d'un tube en aluminium, tube en aluminum et utilisation du tube en aluminum - Google Patents

Procédé de fabrication d'un tube en aluminium, tube en aluminum et utilisation du tube en aluminum Download PDF

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Publication number
EP1362648B1
EP1362648B1 EP03010028A EP03010028A EP1362648B1 EP 1362648 B1 EP1362648 B1 EP 1362648B1 EP 03010028 A EP03010028 A EP 03010028A EP 03010028 A EP03010028 A EP 03010028A EP 1362648 B1 EP1362648 B1 EP 1362648B1
Authority
EP
European Patent Office
Prior art keywords
aluminum tube
texture
forming
aluminum
tube
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.)
Expired - Lifetime
Application number
EP03010028A
Other languages
German (de)
English (en)
Other versions
EP1362648A1 (fr
Inventor
Jens Haase
Michael Opitz
Wolfgang Dipl.-Ing. Rempe
Franz Dipl.-Ing. Steimmel
Frank Wähner
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.)
Hydro Aluminium Deutschland GmbH
Original Assignee
Hydro Aluminium 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 Hydro Aluminium Deutschland GmbH filed Critical Hydro Aluminium Deutschland GmbH
Publication of EP1362648A1 publication Critical patent/EP1362648A1/fr
Application granted granted Critical
Publication of EP1362648B1 publication Critical patent/EP1362648B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/08—Making tubes with welded or soldered seams
    • B21C37/083—Supply, or operations combined with supply, of strip material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B17/00—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B23/00—Tube-rolling not restricted to methods provided for in only one of groups B21B17/00, B21B19/00, B21B21/00, e.g. combined processes planetary tube rolling, auxiliary arrangements, e.g. lubricating, special tube blanks, continuous casting combined with tube rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/156—Making tubes with wall irregularities
    • B21C37/158—Protrusions, e.g. dimples
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
    • B21B2003/001—Aluminium or its alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B23/00—Tube-rolling not restricted to methods provided for in only one of groups B21B17/00, B21B19/00, B21B21/00, e.g. combined processes planetary tube rolling, auxiliary arrangements, e.g. lubricating, special tube blanks, continuous casting combined with tube rolling
    • B21B2023/005—Roughening or texturig surfaces of tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/005—Rolls with a roughened or textured surface; Methods for making same

Definitions

  • the invention relates to a process for the preparation an aluminum tube, an aluminum tube for Further processing in at least one subsequent Forming process and use of the Aluminum tube.
  • the present invention is based on the object a simple method of making a Aluminum tube with increased forming potential or a corresponding aluminum tube for further processing in at least one subsequent forming process for To provide as well as a preferred use of the To propose aluminum tube.
  • a texture using of temper rolling is on the one hand a sufficiently large Roughness on the surface of the aluminum tube achieved, so that the degree of deformation in subsequent Forming processes can be increased, on the other hand can the roughening of the surface in existing ones Manufacturing processes, for example, for extruded or longitudinally welded aluminum tubes integrated so that a swift and simple production of the Aluminum tube is possible.
  • Temper rolling in principle separate or in the Cold rolling process integrated on the aluminum strip for longitudinally welded aluminum pipes Temper rolling or all used in roll forming Rollers, bending rollers or sizing used become.
  • temper rolling with a "electrical Discharge Texturing "(EDT) method or the "Lasertex” (LT) process machined surface used can, according to a first embodiment of the present invention, the surface with high Roughened reproducibility.
  • EDT electric Discharge Texturing
  • LT Layer
  • the surface with high Roughened reproducibility be electrodes radially to the rotating Rolled surface moved up and in the axial direction oscillates. Formed by an erosion impulse Particles in the dielectric between roller and electrode to a dipole bridge and electricity is flowing. A little Area of the roll surface is melted and in Dielectric forms a gas bubble. When switching off of the erosion impulse implodes the gas bubble and the molten roll material is ejected.
  • the Roughness can therefore over regardless of the roll hardness over Parameters such as voltage, timing and distance of the Electrodes can be varied.
  • the roller surface can also with the LT process textured.
  • the LT procedure is a Laser beam focused on the roller, which has a small Area of the surface melts.
  • a chopper wheel interrupts the laser beam, whereby the melt through the Pressure of the plasma and an inert gas is blown out.
  • the melt collects either to a bead around the crater rim or on one side of the crater piled up and frozen there.
  • the roughness of the surface can thereby on the laser power, the axial feed the roller, as well as the roller and chopper speed be set.
  • Tempering rollers with high roller hardness their surface roughened with one of the above methods is because they have particularly long service life during casting exhibit.
  • Texturing also the "Electron Beam Texturing "(EBT) method and the" Shot Blast Texturing "(SBT) method known.
  • the texture of the outer surface of the longitudinally welded aluminum tube is the least changed by subsequent rolling processes, if, according to a next embodiment of the invention Procedure, alternatively or cumulatively, the texture before Calibration rolls or during the Kalibrierwalzens is imprinted.
  • the above derived task for an aluminum tube for Further processing in at least one following Forming process solved by the fact that the outer Surface of the aluminum tube has a texture. Due to the roughness of the surface at subsequent Forming processes the coefficients of friction between the workpiece and Reduced forming tool. This leads, due to the increased forming potential of the aluminum tube, to a Overall improved forming behavior in subsequent Forming processes, so that the process reliability Forming can be significantly increased.
  • Aluminum tube ensures a safe forming be texture by the roughness valleys and / or Lubricant pockets for storing lubricants having. In addition, if necessary, at the Forming used lubricant quantity can be reduced.
  • the single figure shows schematically the Texture of a cutout of the outer surface of a Embodiment of the invention Process produced aluminum tube.
  • the figure shows schematically a section 1 of outer surface of an inventive Aluminum tube with a texture 2, consisting of a number cup-like depressions 3 consists.
  • the texture was 2 doing so with a texturized with the LT method Temper rolling on the outer surface of a longitudinally welded aluminum tube impressed.
  • the cup-like depressions 3 have additionally recessed lubricant pockets 4 on which of on the Roll surface located beads originate.
  • the beads become short-lived Melting of the roll material produced. It stores the rolled material melted in the crater area when solidifying at the edge of the crater in a bead.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Metal Extraction Processes (AREA)
  • Communication Cables (AREA)

Claims (10)

  1. Procédé pour fabriquer un tube en aluminium, caractérisé en ce qu'on texture la surface extérieure du tube en aluminium à l'aide de cylindres de dressage.
  2. Procédé selon la revendication 1, caractérisé en ce qu'on utilise des cylindres de dressage possédant une surface qui est travaillée selon un procédé EDT ou un procédé Lasertex.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que l'on texture un tube en aluminium soudé avec un joint longitudinal et qu'on applique par gaufrage la texture avant le cylindrage de formage.
  4. Procédé selon la revendication 3, caractérisé en ce qu'on imprime par gaufrage la texture, d'une façon alternée ou cumulée, avant le cylindrage de calibrage ou pendant le cylindrage de calibrage.
  5. Procédé selon la revendication 3 ou 4, caractérisé en ce qu'on applique par gaufrage la texture, alternativement ou de façon cumulée, après le cylindrage de calibrage.
  6. Tube en aluminium destiné à subir un traitement ultérieur selon au moins un procédé de formage aval, réalisé à l'aide d'un procédé selon l'une des revendications 1 à 5, caractérisé en ce que la surface extérieure (1) du tube en aluminium possède une texture (2).
  7. Tube en aluminium selon la revendication 6, caractérisé en ce que la texture (2) comporte des creux de rugosité et/ou des poches à lubrifiants (4) servant à stocker des lubrifiants.
  8. Tube en aluminium selon la revendication 6 ou 7, caractérisé en ce que la texture (2) comporte des renfoncements en forme de coupelles (3).
  9. Tube en aluminium selon l'une des revendications 6 à 8, caractérisé en ce que la surface extérieure comporte une rugosité de surface qui est accrue par rapport à des demi-produits en tôle dressés.
  10. Utilisation d'un tube en aluminium selon l'une des revendications 6 à 9 dans un procédé de formage à haute pression interne.
EP03010028A 2002-05-14 2003-05-02 Procédé de fabrication d'un tube en aluminium, tube en aluminum et utilisation du tube en aluminum Expired - Lifetime EP1362648B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10221515 2002-05-14
DE10221515A DE10221515C1 (de) 2002-05-14 2002-05-14 Verfahren zur Herstellung eines Aluminiumrohres

Publications (2)

Publication Number Publication Date
EP1362648A1 EP1362648A1 (fr) 2003-11-19
EP1362648B1 true EP1362648B1 (fr) 2005-08-03

Family

ID=29225165

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03010028A Expired - Lifetime EP1362648B1 (fr) 2002-05-14 2003-05-02 Procédé de fabrication d'un tube en aluminium, tube en aluminum et utilisation du tube en aluminum

Country Status (4)

Country Link
US (1) US20040035176A1 (fr)
EP (1) EP1362648B1 (fr)
AT (1) ATE301009T1 (fr)
DE (2) DE10221515C1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3067149A1 (fr) 2015-03-13 2016-09-14 Wartmann Technologie AG Tube pressurisé pour commutateurs isolés ou conducteurs et procédé de production

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012141320A1 (fr) * 2011-04-13 2012-10-18 日本電気株式会社 Structure de tuyauterie d'un dispositif de refroidissement, méthode de fabrication de celle-ci et méthode d'accouplement de tuyaux
DE102011110458A1 (de) * 2011-08-05 2013-02-07 Witzenmann Gmbh Leitungselement mit Oberflächenstruktur sowie Verfahren zum Herstellen und Verwendung eines solchen Leitungselement
DE102012017703A1 (de) * 2012-09-07 2014-03-13 Daetwyler Graphics Ag Flachprodukt aus Metallwerkstoff, insbesondere einem Stahlwerkstoff, Verwendung eines solchen Flachprodukts sowie Walze und Verfahren zur Herstellung solcher Flachprodukte
EP2988884B1 (fr) * 2013-04-26 2016-12-14 SMS group GmbH Procédé et cage de laminage à froid d'un produit
EP3045194B1 (fr) * 2013-09-11 2020-06-10 Terumo Kabushiki Kaisha Ensemble aiguille creuse médicale et procédé de fabrication d'une aiguille creuse

Family Cites Families (11)

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Publication number Priority date Publication date Assignee Title
DE1212930B (de) * 1963-11-04 1966-03-24 Mannesmann Meer Ag Moenchengla Lagerung fuer auswechselbare Walzen in einem Walzgeruest fuer Schweisswalzwerke fuer Laengsnahtrohre
DE2049420A1 (de) * 1970-10-08 1972-04-13 Kabel Metallwerke Ghh Verfahren zur kontinuierlichen Herstellung längsnahtgeschweißter Rohre
US3861462A (en) * 1971-12-30 1975-01-21 Olin Corp Heat exchange tube
US3956915A (en) * 1975-03-25 1976-05-18 National Steel Corporation Drawing and ironing container stock and manufacturing methods
US4087898A (en) * 1975-07-24 1978-05-09 Southwire Company Metallic rod product, and method for producing same
DE3008679C2 (de) * 1980-03-06 1983-08-18 Vereinigte Metallwerke Ranshofen-Berndorf AG, 5282 Braunau am Inn, Oberösterreich Tiefziehfähiges Blech oder Band aus Nichteisen-Metall oder Legierung daraus, insbesondere aus Aluminium sowie Verfahren zu dessen Herstellung
LU84687A1 (fr) * 1983-03-11 1984-11-14 Centre Rech Metallurgique Procede pour ameliorer l'etat de surface d'un cylindre
DE3713909A1 (de) * 1987-04-25 1988-11-10 Vaw Ver Aluminium Werke Ag Tiefziehfaehiges blech oder band aus aluminium oder aluminiumlegierungen sowie verfahren zu seiner herstellung
DE4220625C1 (en) * 1992-06-24 1993-06-03 Gkn Automotive Ag, 5200 Siegburg, De Rods, pipes, shaped pieces etc. - have surface depressions applied, esp. by ball blasting which are filled with lubricant prior to cold-drawing
EP1368140B1 (fr) * 2001-03-12 2006-08-02 Novelis, Inc. Procede et appareil de texturation d'une feuille ou d'une bande metallique
EP1317972A1 (fr) * 2001-12-05 2003-06-11 Alcan Technology & Management AG Procédé pour améliorer l'adhésion d'un lubrifiant sur la surface d'une bande d'aluminium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3067149A1 (fr) 2015-03-13 2016-09-14 Wartmann Technologie AG Tube pressurisé pour commutateurs isolés ou conducteurs et procédé de production

Also Published As

Publication number Publication date
DE50300892D1 (de) 2005-09-08
ATE301009T1 (de) 2005-08-15
DE10221515C1 (de) 2003-11-13
US20040035176A1 (en) 2004-02-26
EP1362648A1 (fr) 2003-11-19

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