EP1434659B1 - Procede de production d'un tuyau de derivation - Google Patents

Procede de production d'un tuyau de derivation Download PDF

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Publication number
EP1434659B1
EP1434659B1 EP02779363A EP02779363A EP1434659B1 EP 1434659 B1 EP1434659 B1 EP 1434659B1 EP 02779363 A EP02779363 A EP 02779363A EP 02779363 A EP02779363 A EP 02779363A EP 1434659 B1 EP1434659 B1 EP 1434659B1
Authority
EP
European Patent Office
Prior art keywords
shell part
joining flanges
branch pipe
another
blank
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
EP02779363A
Other languages
German (de)
English (en)
Other versions
EP1434659A1 (fr
Inventor
Wilfried Bien
Pierre Bonny
Michael Halves
Thomas Hülsberg
Uwe KLÜSSMANN
Holger Nuhn
Ralf Pünjer
Olav Reinhardt
Dirk Riewert
Thorsten Sternal
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.)
Mercedes Benz Group AG
Original Assignee
DaimlerChrysler AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by DaimlerChrysler AG filed Critical DaimlerChrysler AG
Publication of EP1434659A1 publication Critical patent/EP1434659A1/fr
Application granted granted Critical
Publication of EP1434659B1 publication Critical patent/EP1434659B1/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
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/28—Making tube fittings for connecting pipes, e.g. U-pieces
    • B21C37/29—Making branched pieces, e.g. T-pieces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • 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
    • B21C37/28—Making tube fittings for connecting pipes, e.g. U-pieces
    • B21C37/29—Making branched pieces, e.g. T-pieces
    • B21C37/296—Making branched pieces starting from strip material; Making branched tubes by securing a secondary tube in an opening in the undeformed wall of a principal tube
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49428—Gas and water specific plumbing component making
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49428—Gas and water specific plumbing component making
    • Y10T29/4943—Plumbing fixture making
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49428—Gas and water specific plumbing component making
    • Y10T29/49442—T-shaped fitting making

Definitions

  • the invention relates to a method for producing a branch pipe for use in the exhaust system of a motor vehicle according to the preamble of claim 1.
  • Branch pipes are commonly welded together deep-drawn half-shells, in one piece from cast or by hydroforming from a straight or curved tube produced.
  • the first method of preparation requires an increased Handling effort to put the two half-shells together.
  • two molds are required, whereby the Manufacturing tolerances of the items for the joining process accordingly are high, which makes this difficult.
  • the execution in Casting is much easier to handle, but it is on the one hand a branch pipe made of cast iron relatively heavy and on the other hand the design variety of the branch of the to be generated Tube considerably limited in terms of wall thickness, since with the casting technique very thin walls not sure process can be formed.
  • the hydroforming technology provides this Although there are more possibilities, there are also limits to especially as far as the length of the branch is concerned. Of others - if at all possible - due to the process-specific material thinning only very difficult and laborious, made of thin-walled pipes branches reliable to mold.
  • a generic method is known from EP 0 780 173 A2. This is to produce a manifold pipe branch a motor vehicle exhaust system a Blechcoil- or blank PCB deep-drawn and cut in a follow-on composite tool, whereby a pipe part semi-finished product is formed, which the unwound form of the tube part End Weges corresponds. The tube part semifinished product is then pre-bent and wound. The Finished bent part is bent in its medium contact area gas-tight welded.
  • the invention has for its object to provide a method by means of which in a simple way the process-reliable Production of a branch pipe for use in the exhaust system of a motor vehicle with almost any design of the branch is made possible.
  • the training is strong curved branches possible, whereby in use in the assembly an exhaust manifold this better the space of the engine compartment can be adjusted.
  • the length of the Branches can be sized so that no connecting pipe more is required to the input flange on the cylinder head.
  • the joint seam is such that it is from the hot exhaust gas is not directly flowed, bringing a significant increase the durability of the exhaust manifold is associated. Due to the location the seam can, at least when used in the exhaust system the suture should be interrupted, as the gas tightness due to the in the sliding seat with game subsequent further exhaust pipes not fully given anyway what the manufacturing process times minimizes and thus the production cost-effective power.
  • Fig. 1 is an intermediate stage of a process for the preparation a branch pipe 1 shown.
  • a blank or sheet metal section from a coil which is subjected to a deep-drawing process.
  • the Deep drawing will make the board an elongated rectilinear Main bulge and two side vaults formed, which the latter branch off from one longitudinal side of the main curvature and with respect to the running in the circuit board material Center longitudinal axis 2 of the main curvature opposite each other.
  • the side curvatures are in terms of shape of their baseline arranged mirror-symmetrically to each other.
  • the baseline denotes the course of the opening edge of the side curvatures.
  • the side curvatures the form and dimension according to - apart from their mirror-symmetrical arrangement - are completely alike, can the side bulges also according to the desire of the produced Branches have different depths.
  • thermoforming tool After forming the board, this is in procedural economic Way in the thermoforming tool by means of a punching tool or outside the thermoforming tool in a jig by means of a three-dimensional feasible Cutting laser cut.
  • the trimming results on the one hand, a tub-like shell part 3, the main bulge arises and is open in the longitudinal direction.
  • the shell part 3 is rectangular in a plan view. It However, for example, in one or both directions of Longitudinal extension of the shell part 3 as a uniform Trapezoid be designed. Close to the shell part 3 in the same plane lying half-pin 4, which from the Side curvatures result.
  • the half-stubs 4 are in Extension direction open and in each case as a half circular cylinder educated.
  • the geometry of the rectilinear parallel But lower edges 5 of the half-4 can also be completely different. For example, these can be curved or be formed rectilinearly converging to each other.
  • the half-pin 4 has the shape of a half-cone.
  • the half-stubs 4 open into the one of the curvature formed cavity 6 of the shell part 3.
  • the Sheet metal strip 7 of the shell part 3 and the half-socket 4 are but connected together, but also from each other be separated.
  • the metal strips 7 over the entire surface in the same level as the lower edges 5 of the half-pieces 4 and the lower edges 8 of the shell part 3 must be located.
  • the Sheet metal strip 7 must for the success of subsequent joining operations in any case starting from this level, with deviations from the above education at the same time the re the central longitudinal axis 2 opposite each other Sheet metal strip 7 must be formed form negative to each other. This is advantageous in that in the subsequent Bending the sheet metal strips 7 positively into one another grip, thus providing a better grip for the joining operation and ensures improved durability of the joint seam.
  • the metal strips 7 serve here as Fügeflansche.
  • axis 10 is the radius of the formed by bending circular cylindrical main pipe 11 from the central longitudinal axis 2 offset down. The bending takes place, until the one another on both sides 13,14 of the shell part. 3 corresponding Fügeflansche 7 over the entire surface together.
  • the lower edges 8 of the shell part come for themselves 3 on the one hand and the lower edges 5 of the half-4 on the other hand lie on one another, whereby from the shell part 3, said main pipe 11 and the half-stub 4 of Branch pipe 12 is formed, which together in turn the Form branch pipe 1.
  • the metal strips 7 are formed in the present example so that the end 16 of the half-strip 4 running along the metal strip 7 is withdrawn with respect to the opening edge 17 of the half-piece 4.
  • the branch pipe 1 can be easily plugged together with the input flange of the cylinder head and optionally welded to the flange, while the main pipe 11 can be connected to another pipe of an exhaust manifold in the sliding seat.
  • the branch pipe 1 can be plugged and welded as an inner part with the corresponding nozzle of the outer shell.
  • the solution according to the invention is not limited to the formation of a single branch pipe 12.
  • These can be formed with respect to shape and length depending on the requirements of the spatial and / or fluidic conditions with each other the same or different.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Claims (2)

  1. procédé de fabrication d'un tuyau de dérivation (1) à utiliser dans la conduite des gaz d'échappement d'un véhicule, moyennant quoi
    une courbure principale oblongue et rectiligne et au moins deux courbures latérales opposées de la ligne de base placée en symétrie inverse, bifurquant à partir des côtés longs de la courbure principale par rapport à l'axe longitudinal médian (2) de la courbure principale s'étendant dans la matière d'une platine sont formées par emboutissage profond à partir d'une platine,
    après le formage, la platine est découpée de manière à former, à partir de la courbure principale, une partie en coque (3) semblable à une cuvette ouverte dans la direction longitudinale et, à partir des courbures latérales, des demi-tubulures (4) raccordées à la partie en coque (3), se trouvant dans le même plan que la partie en coque (3) et ouvertes dans la direction de projection, et de manière à ce que des bandes de tôle (7) servant de brides d'assemblage s'étendent à l'extérieur le long des bords latéraux (9) de la partie en coque (3) et des demi-tubulures (4),
    ensuite, la partie en coque (3) est courbée autour d'un axe spatial parallèle à l'axe longitudinal médian (2) jusqu'à ce que les brides d'assemblage (7) mutuellement correspondantes des deux côtés (13, 14) de la partie en coque (3) soient les unes à côté des autres,
    après quoi, les brides d'assemblage (7) sont raccordées les unes aux autres,
       caractérisé en ce que
       les brides d'assemblage (7) sont raccordées les unes aux autres par assemblage traversant.
  2. Procédé selon la revendication 1, caractérisé en ce que l'extrémité (16) de la bande de tôle (7) s'étendant le long de la demi-tubulure (4) est en retrait par rapport au bord d'ouverture (17) de la demi-tubulure (4).
EP02779363A 2001-10-06 2002-09-17 Procede de production d'un tuyau de derivation Expired - Lifetime EP1434659B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10149381A DE10149381A1 (de) 2001-10-06 2001-10-06 Verfahren zur Herstellung eines Abzweigrohres
DE10149381 2001-10-06
PCT/EP2002/010409 WO2003031091A1 (fr) 2001-10-06 2002-09-17 Procede de production d'un tuyau de derivation

Publications (2)

Publication Number Publication Date
EP1434659A1 EP1434659A1 (fr) 2004-07-07
EP1434659B1 true EP1434659B1 (fr) 2005-03-23

Family

ID=7701659

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02779363A Expired - Lifetime EP1434659B1 (fr) 2001-10-06 2002-09-17 Procede de production d'un tuyau de derivation

Country Status (8)

Country Link
US (1) US20050028366A1 (fr)
EP (1) EP1434659B1 (fr)
JP (1) JP2005508253A (fr)
KR (1) KR100598228B1 (fr)
AT (1) ATE291502T1 (fr)
DE (2) DE10149381A1 (fr)
ES (1) ES2239256T3 (fr)
WO (1) WO2003031091A1 (fr)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10356137B4 (de) * 2003-12-02 2005-11-24 Daimlerchrysler Ag Verfahren zur Herstellung eines rohrartigen Hohlprofils einer Abgasanlage
DE102004017343A1 (de) † 2004-04-06 2005-11-03 Muhr Und Bender Kg Verfahren zur Herstellung von Profilen mit in Längsrichtung veränderlichem Querschnitt
US20060240651A1 (en) * 2005-04-26 2006-10-26 Varian Semiconductor Equipment Associates, Inc. Methods and apparatus for adjusting ion implant parameters for improved process control
JP5157782B2 (ja) * 2008-09-25 2013-03-06 スズキ株式会社 車両の排気管構造
DE102010017022B4 (de) * 2010-05-19 2012-05-31 Thyssenkrupp Steel Europe Ag Verfahren zum Herstellen eines Hohlprofils, Stützkern zur Durchführung des Verfahrens sowie ein danach hergestelltes Profil
DE102011106242B9 (de) 2011-06-27 2015-12-24 Tenneco Gmbh Modularer Krümmer für Kfz und Herstellungsverfahren
US9395024B2 (en) 2011-11-21 2016-07-19 Victaulic Company Coupling having gasket pocket of varying depth
US8820795B2 (en) 2012-02-02 2014-09-02 Victaulic Company Fitting for joining pipe elements
US9182058B2 (en) 2012-02-08 2015-11-10 Victaulic Company Fitting having receptacle of varying depth
US9435469B2 (en) 2012-09-11 2016-09-06 Victaulic Company Coupling with notched projections having gasket pocket of varying depth
US10578234B2 (en) 2013-05-02 2020-03-03 Victaulic Company Coupling having arcuate stiffness ribs
EP3434955B1 (fr) 2013-07-17 2021-04-28 Victaulic Company Raccords à nervures de rigidité arquées
DE102014110616A1 (de) 2014-07-28 2016-01-28 Tenneco Gmbh Ventilgehäuse mit Ventilklappe
DE102015116018A1 (de) 2015-09-22 2017-03-23 Tenneco Gmbh Krümmer
US11725756B2 (en) 2015-12-28 2023-08-15 Victaulic Company Adapter coupling
US10605394B2 (en) 2016-05-16 2020-03-31 Victaulic Company Fitting having tabbed retainer and observation apertures
US10859190B2 (en) 2016-05-16 2020-12-08 Victaulic Company Sprung coupling
US10533688B2 (en) 2016-05-16 2020-01-14 Victaulic Company Coupling having tabbed retainer
CN106077132B (zh) * 2016-07-07 2019-02-05 燕山大学 一种大型板制双焊缝三通的成形方法及成形装置
US11781683B2 (en) 2019-11-15 2023-10-10 Victaulic Company Shrouded coupling
DE102020125954A1 (de) * 2020-10-05 2022-04-07 Friedrich Boysen GmbH & Co KG. Gehäuse für Abgaseinrichtung

Family Cites Families (8)

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Publication number Priority date Publication date Assignee Title
DE101511C (fr) *
US2157274A (en) * 1937-04-27 1939-05-09 Gen Fire Extinguisher Co Welding t and method of making same
US2262627A (en) * 1938-11-15 1941-11-11 Budd Edward G Mfg Co Manifold
US2470499A (en) * 1947-04-19 1949-05-17 Chester A Lapp Pipe fitting
US3958312A (en) * 1974-01-18 1976-05-25 British Leyland Motor Corporation Limited Catalytic device for an exhaust system for an internal combustion engine
DE3919496C1 (fr) * 1989-06-12 1990-07-05 Mannesmann Ag, 4000 Duesseldorf, De
DE19548224A1 (de) * 1995-12-22 1997-06-26 Eberspaecher J Verfahren zur Herstellung eines Rohrteiles, insbesondere einer Krümmer-Rohrabzweigung einer Kraftfahrzeug-Abgasanlage, sowie eine hiernach gefertigte Krümmer-Rohrabzweigung
WO2000061311A1 (fr) * 1999-04-13 2000-10-19 Joseph Mckenna Procedes de fabrication de connecteurs en t

Also Published As

Publication number Publication date
KR20040048915A (ko) 2004-06-10
EP1434659A1 (fr) 2004-07-07
DE50202581D1 (de) 2005-04-28
US20050028366A1 (en) 2005-02-10
KR100598228B1 (ko) 2006-07-07
DE10149381A1 (de) 2003-05-08
WO2003031091A1 (fr) 2003-04-17
JP2005508253A (ja) 2005-03-31
ES2239256T3 (es) 2005-09-16
ATE291502T1 (de) 2005-04-15

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