EP1285705A2 - Méthode et dispositif pour le calibrage des profiles creux ou des corps creux - Google Patents

Méthode et dispositif pour le calibrage des profiles creux ou des corps creux Download PDF

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Publication number
EP1285705A2
EP1285705A2 EP02405631A EP02405631A EP1285705A2 EP 1285705 A2 EP1285705 A2 EP 1285705A2 EP 02405631 A EP02405631 A EP 02405631A EP 02405631 A EP02405631 A EP 02405631A EP 1285705 A2 EP1285705 A2 EP 1285705A2
Authority
EP
European Patent Office
Prior art keywords
profile
mandrel
housing
pressure
tool
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Withdrawn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
EP02405631A
Other languages
German (de)
English (en)
Other versions
EP1285705A3 (fr
Inventor
Frank Wehner
Martin Feuerstein
Markus Gehrig
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.)
3A Composites International AG
Original Assignee
Alcan Technology and Management Ltd
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
Priority claimed from DE10147848A external-priority patent/DE10147848A1/de
Application filed by Alcan Technology and Management Ltd filed Critical Alcan Technology and Management Ltd
Publication of EP1285705A2 publication Critical patent/EP1285705A2/fr
Publication of EP1285705A3 publication Critical patent/EP1285705A3/fr
Withdrawn legal-status Critical Current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, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles 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
    • B21C37/30—Finishing tubes, e.g. sizing, burnishing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C35/00—Removing work or waste from extruding presses; Drawing-off extruded work; Cleaning dies, ducts, containers, or mandrels for metal extruding
    • B21C35/02—Removing or drawing-off work
    • B21C35/03—Straightening the work

Definitions

  • the invention relates to a method for calibrating a Profiles or the like.
  • Body - especially one on the way of the extrusion from a light metal ingot Hollow profile - using a molding tool.
  • This can contain a tool housing in which the Profile introduced and at least partially through Deformation pressure is pressed against the inside surface of the housing.
  • the invention also includes one for this method particularly suitable device.
  • hydroforming adapting its outer surface (s) to one through the inner surface of a molding tool given final design - in Internal pressure generated by a flow medium; this procedure is called hydroforming (IHU) designated.
  • IHU hydroforming
  • the hollow profile by means of at least one stamp to be added, which on Attacks the workpiece on the face. In this way, the latter expanded, compressed or expanded.
  • a cone-like cylindrical probe introduced thanks to the spaced apart Sealing rings with the pipe section to be expanded Annulus forms; this is used for expansion with the pressure or flow medium filled.
  • the two sealing rings are each in an annular receiving groove U-shaped cross section arranged in the probe and have in the initial state at most when inserting the probe into the tube the outside diameter corresponding to the outside diameter of the probe. Before the expansion process begins, they become Sealing the resulting annular gap between the probe and Pipe is pressurized with pressure medium that the receiving grooves is fed.
  • the pressure medium supply to the annulus happens exclusively via at least one of the grooves and is by a sealing ring serving as a valve body controlled, the one between the receiving groove and annulus closes the opening until it passes through elastic expansion has achieved its sealing effect. Becomes the pressure in the annular space between the two seals increases, the pipe wall begins to close in this area wide.
  • Corners or sudden changes in wall thickness lead to calibration uneven deformation in the workpiece. Also walls of different thicknesses stretch when hydroforming unevenly. Go from a corner two such different walls, so will both Walls pressed against the tool by the internal pressure. The thicker wall almost stays there while the thinner wall - lower section modulus - in the Corner is drawn. This leads to a rejuvenation of the thinner Wall to the corner area.
  • the device developed for this method draws is characterized in that one in the longitudinal direction of the profile movably arranged mandrel of conical longitudinal section internal desired shape of the profile is assigned to determining mold parts which are stationary in the longitudinal direction of the profile attached and are radially movable.
  • the radially movable Mold parts limit the axial path of movement of the thorn.
  • the width of the gap is reciprocal to the effective cross-sectional size of this - against its Direction of thrust flaring - thorn.
  • the mandrel has at least one of the mold part assigned stop or pressure surface on preferred their several, which are located in the longitudinal direction of the mandrel Determine the tapered area.
  • the stop or pressure surfaces are in one configuration the device each part of a profiled projecting Pressure bar of the mandrel, the cross section the pressure bar tapers towards the mandrel center; of the printing surface should have at least one inclined towards the mandrel center Flank surface, which - forming a Angle as a cross section of a longitudinal groove - into the neighboring one Thorn side merges.
  • the Cross section polygon. Two of its printing area sections should run on both sides of a center line and be inclined to each other, one at each of the sections the mandrel sides connects.
  • a triangular shaped part with base edge facing the mandrel, each with one Frame side of the tool housing associated leg surfaces; the base edge is preferably the hypotenuse of the Molding.
  • a multiple tool is therefore offered, from the longitudinal direction standing mold parts and a movable mandrel.
  • the standing mold parts have - turned towards the edges - the inner target shape of the edges.
  • the lengthways too leading thorn is conical.
  • a tool 10 for calibrating a hollow profile made of a light alloy for the sake of clarity in FIG. 1 has in the corners 12, 12 a of a tool housing 16 formed by three frame sides 14, 14 a , isosceles triangular cross-section fitted into those corners 12, 12 a - In turn, also triangular-shaped parts 18, 18 a .
  • These and the tool housing 16 are preferably made of steel.
  • the mold parts 18, 18 a limit with their leg or side surfaces 19 and those frame sides 14, 14 a gap spaces 22 as part of the mold or tool space 24. Since the base side 14 of the tool housing 16 running down in FIG. 1 is longer than the two molded onto them, leg sides 14 a of equal length, the angle w of the corner 12 a delimited by the leg sides 14 a is 70 ° greater than each of the two corner angles t of 55 ° formed with the base side 14.
  • the mold parts 18, 18 a with their base edges 20 and in each case a central section of the adjacent frame side 14 or 14 a of the tool housing 16 in FIG. 1, determine an inner section of the tool space 24.
  • One in its longitudinal direction - that is, in the viewing direction of FIG.
  • mandrel 26 is provided with three - at the corners of its triangular cross-section formed by mandrel sides 28 - lugs or pressure strips 30, which are at a distance from the base edges 20 of the mold parts 18, 18 a - to the length a Base edges 20 shorter - offer stop or pressure surfaces 32; from this pressure surface 32 the dovetail-like extension or pressure bar cross-section tapers from the mandrel center Z thanks to flank surfaces 33 which are inclined towards one another - away from the pressure surface 32.
  • the mandrel cross-section tapers in the direction of view mentioned, ie the cross-section of its end near the viewer corresponds to the contour K indicated in FIG. 1
  • FIG. 2 shows, in a further embodiment of the molded part 18 a and the mandrel 26 on the base edge 20 of the molded part 18 a, a groove 36 extending in the longitudinal extension thereof, into which a strip-like spring-like molding 38 of the pressure surface 32 of the pressure strip 30 engages.
  • This shaping prevents the mold part 18 a from being eaten and additional lubrication is unnecessary.
  • This multiple tool 10 and the calibration method that can be carried out with it prove particularly useful when only the ends of a hollow profile are to be calibrated in order to achieve a fit in a molded part.
  • the tool housing 16 described above is missing in the tool 10 a of FIG. 3; it comprises the mandrel 26 and its pressure surfaces 32 associated mold parts 18, 18 a. These are inserted into a triangular hollow profile 34, which is likewise of a cross-section here. Axial displacement of this tool 10 a reduces the gap spaces 22 existing between it and the inner surfaces 35 of the hollow profile 34; the side surfaces 19 of the mold parts 18, 18 a lie against those inner surfaces 35 and calibrate the hollow profile 34.
  • a further multiple tool 11 according to FIG. 4 consists of two trapezoidal tool or housing halves 11 a arranged on both sides of a central leg 40 containing an axis of symmetry Q, the lateral frame parts 14 a of which extend inwards from the central leg 40 to an indicated at M, the axis of symmetry Q intersecting center line inclined and connected by a parallel to the middle leg 40 end leg 14 e .
  • a triangular shape part 18 is arranged in the two corners 12 adjoining the front or end legs 14 e and an angular shape part 42 in each of the two corners 12 a located on the center leg 40.
  • These form parts 18, 42 form with - consisting of the middle leg 40, the frame sides 14 a and the front legs 14 e - - tool housing 16 a gap spaces 22 a .
  • the two mandrels 26 a shown in FIG. 4 each have two slightly inclined mandrel sides 28, each of which adjoins a common base surface 29 by means of a corner region 27.
  • the corner region 27 receiving an angular section 43 of the molded part 42 connects to the mandrel side 28 with a leg parallel to the base surface 29 and to the base surface 29 with a second leg extending at right angles therefrom, which in turn is assigned to the other angular section 44 of the molded part 42.
  • the mandrel sides 28 of the mandrel 26 a border with the adjacent frame parts 14 a , widening gap spaces 23 in plan view towards the end leg 14 e , and merge into head surfaces 25 inclined towards the center line M, which run approximately parallel to the base edges 20 of the adjacent mold parts 18 and close that center line M form a ridge surface 29 f parallel to the front leg 14 e .
  • the profile to be calibrated lies between the respective tool housing 16 a and the longitudinally extending mold parts 18, 42, which in turn interact with the movable mandrel 26 a until - with a reduction in the width e of the gap spaces 22, 22 a , 23 -

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
EP02405631A 2001-08-13 2002-07-19 Méthode et dispositif pour le calibrage des profiles creux ou des corps creux Withdrawn EP1285705A3 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10138383 2001-08-13
DE10138383 2001-08-13
DE10147848 2001-09-27
DE10147848A DE10147848A1 (de) 2001-08-13 2001-09-27 Verfahren und Vorrichtung zum Kalibrieren eines Profils o. dgl. Körpers

Publications (2)

Publication Number Publication Date
EP1285705A2 true EP1285705A2 (fr) 2003-02-26
EP1285705A3 EP1285705A3 (fr) 2003-11-19

Family

ID=26009880

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02405631A Withdrawn EP1285705A3 (fr) 2001-08-13 2002-07-19 Méthode et dispositif pour le calibrage des profiles creux ou des corps creux

Country Status (1)

Country Link
EP (1) EP1285705A3 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009005935A1 (de) * 2009-01-23 2010-07-29 Danfoss Compressors Gmbh Verfahren zum Kalibrieren einer Pleuelstangenanordnung und Pleuelstangenanordnung
DE102017008907A1 (de) * 2017-09-22 2019-03-28 Audi Ag Verfahren und Werkzeug zur Kalibrierung eines durch Strangpressen erzeugten Hohlprofilbauteils für den Automobilbau
DE102018124982A1 (de) * 2018-10-10 2020-04-16 Benteler Automobiltechnik Gmbh Verfahren zum Kalibrieren eines metallischen Hohlkammerprofils sowie Hohlkammerprofil
DE102018131967A1 (de) * 2018-12-12 2020-06-18 Benteler Automobiltechnik Gmbh Verfahren zum Kalibrieren eines gekrümmten metallischen Hohlkammerprofils
EP3960319A1 (fr) 2020-08-31 2022-03-02 Benteler Automobiltechnik GmbH Procédé d'étalonnage d'une ébauche de profilé métallique pourvue d'au moins une paroi pleine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3077916A (en) * 1960-08-12 1963-02-19 Harold E Vaughn Expander tool
CA2024394A1 (fr) * 1989-09-14 1991-03-15 Velte Karl-Heinz Outil ajustable pour pieces mobiles creuses
ES1028479Y (es) * 1994-07-01 1995-09-01 Saneper S A Cuerpo abocardador.
US5595086A (en) * 1994-08-02 1997-01-21 Aluminum Company Of America Apparatus for calibrating hollow nonsymmetrical multiplane extrusions and associated method
US5836197A (en) * 1996-12-16 1998-11-17 Mckee Machine Tool Corp. Integral machine tool assemblies

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009005935A1 (de) * 2009-01-23 2010-07-29 Danfoss Compressors Gmbh Verfahren zum Kalibrieren einer Pleuelstangenanordnung und Pleuelstangenanordnung
DE102009005935B4 (de) * 2009-01-23 2010-10-07 Danfoss Compressors Gmbh Verfahren zum Kalibrieren einer Pleuelstangenanordnung und Pleuelstangenanordnung
US8596187B2 (en) 2009-01-23 2013-12-03 Secop Gmbh Method of calibrating a connecting rod arrangement and connecting rod arrangement
DE102017008907A1 (de) * 2017-09-22 2019-03-28 Audi Ag Verfahren und Werkzeug zur Kalibrierung eines durch Strangpressen erzeugten Hohlprofilbauteils für den Automobilbau
DE102017008907B4 (de) 2017-09-22 2019-07-25 Audi Ag Werkzeug und Verfahren zur Kalibrierung eines durch Strangpressen erzeugten Hohlprofilbauteils, sowie Verfahren zur Herstellung eines Hohlprofilbauteils für den Automobilbau
US11235367B2 (en) 2017-09-22 2022-02-01 Audi Ag Method and tool for calibration of a hollow profile component produced by extrusion for automobile manufacturing
CN111014357A (zh) * 2018-10-10 2020-04-17 本特勒汽车技术有限公司 用于校准金属空心腔型材的方法以及空心腔型材
DE102018124982A1 (de) * 2018-10-10 2020-04-16 Benteler Automobiltechnik Gmbh Verfahren zum Kalibrieren eines metallischen Hohlkammerprofils sowie Hohlkammerprofil
CN111014357B (zh) * 2018-10-10 2022-06-03 本特勒汽车技术有限公司 用于校准金属空心腔型材的方法以及空心腔型材
DE102018131967A1 (de) * 2018-12-12 2020-06-18 Benteler Automobiltechnik Gmbh Verfahren zum Kalibrieren eines gekrümmten metallischen Hohlkammerprofils
DE102018131967B4 (de) * 2018-12-12 2025-09-18 Benteler Automobiltechnik Gmbh Verfahren zum Kalibrieren eines gekrümmten metallischen Hohlkammerprofils
EP3960319A1 (fr) 2020-08-31 2022-03-02 Benteler Automobiltechnik GmbH Procédé d'étalonnage d'une ébauche de profilé métallique pourvue d'au moins une paroi pleine
DE102020122711A1 (de) 2020-08-31 2022-03-03 Benteler Automobiltechnik Gmbh Verfahren zum Kalibrieren eines metallischen Profilrohlings mit wenigstens einer massiven Wand
US11958097B2 (en) 2020-08-31 2024-04-16 Benteler Automobiltechnik Gmbh Method for calibrating a metal profile blank which is configured as a hollow-chamber profile and which has at least one solid wall
DE102020122711B4 (de) * 2020-08-31 2025-04-03 Benteler Automobiltechnik Gmbh Verfahren zum Kalibrieren eines metallischen Profilrohlings mit wenigstens einer massiven Wand

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Publication number Publication date
EP1285705A3 (fr) 2003-11-19

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