EP1231366A1 - Exhaust casing part for a motor vehicle, particularly for an exhaust silencer or an exhaust gas catalyst - Google Patents

Exhaust casing part for a motor vehicle, particularly for an exhaust silencer or an exhaust gas catalyst Download PDF

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Publication number
EP1231366A1
EP1231366A1 EP01130370A EP01130370A EP1231366A1 EP 1231366 A1 EP1231366 A1 EP 1231366A1 EP 01130370 A EP01130370 A EP 01130370A EP 01130370 A EP01130370 A EP 01130370A EP 1231366 A1 EP1231366 A1 EP 1231366A1
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EP
European Patent Office
Prior art keywords
exhaust
housing part
exhaust gas
shell
thickness
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.)
Granted
Application number
EP01130370A
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German (de)
French (fr)
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EP1231366B1 (en
Inventor
Norbert Klein
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.)
Eberspaecher Climate Control Systems GmbH and Co KG
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J Eberspaecher GmbH and Co KG
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Publication of EP1231366A1 publication Critical patent/EP1231366A1/en
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Classifications

    • 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
    • F01N13/1872—Construction facilitating manufacture, assembly, or disassembly the assembly using stamp-formed parts or otherwise deformed sheet-metal
    • 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
    • F01N13/1888—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells
    • 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
    • Y10T29/49345—Catalytic device 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
    • Y10T29/49398—Muffler, manifold or exhaust pipe making

Definitions

  • the invention relates to an exhaust gas housing part of a motor vehicle, especially for an exhaust muffler or Exhaust gas catalytic converter of a passenger car, with a Blank as a semi-finished product, which after an embossing process in one Tool an upper half shell or a lower half shell a half-shell muffler or catalytic converter or after an unwound operation in a tool a wound exhaust funnel or cylinder, or an exhaust connection piece formed.
  • the object of the invention is to provide an exhaust gas housing part a motor vehicle of the type mentioned with a special board as a semi-finished product, as well as a manufacturing process a circuit board or an exhaust housing part, which or which has high strength and high dimensional stability has and yet is lightweight.
  • a manufacturing device is characterized by the Features of claim 10. Advantageous further developments result resulting from the dependent claims 11 to 15.
  • a manufacturing process of a circuit board or an exhaust gas housing part is characterized by the features of the claim 16th
  • the essence of the invention is a special structure of a one-piece PCB in a prefabrication for one to be manufactured Exhaust silencer, exhaust catalytic converter, exhaust funnel, exhaust cylinder jacket, Exhaust nozzle or the like in half-shell or winding or jacket construction.
  • an exhaust gas housing part identifies one Motor vehicle, especially for an exhaust silencer or an exhaust gas catalytic converter of a passenger car, with a blank as a semi-finished product after an embossing process an upper half shell or a lower one in one tool Half-shell of a half-shell silencer or catalytic converter or after unwinding in a tool wound exhaust funnel or cylinder, or an exhaust connection piece trained by a circuit board in the form of a one-piece, profiled sheet metal part different Thickness with at least one band section of smaller thickness and at least one band section of greater thickness that the manufactured Exhaust housing part (half shell, funnel, cylinder or Locally) at least in a wall area.
  • the circuit board preferably has two lateral band sections smaller thickness and an intermediate band section greater thickness.
  • the two side band sections of smaller thickness can be the same.
  • the band section of greater thickness can be at least one raised one be narrow longitudinal web or at least a raised narrow Also include the longitudinal bar.
  • the sheet metal part may have at least one Surface a rolled pattern, which preferably Vertical and / or horizontal stripes, checks or circular or square Pimples are.
  • the band sections are particularly linear in the longitudinal direction of the exhaust gas housing part to be manufactured.
  • the band sections can also be in the transverse direction of the exhaust housing part to be manufactured expanded in the middle or be restricted and a curved connecting edge have in the longitudinal direction of the exhaust gas housing part to be manufactured.
  • the band sections can also have a linear connection edge that is oblique with respect the longitudinal direction of the exhaust gas housing part to be manufactured runs.
  • An advantageous rolling device for producing a board provides at least two profiled pressure rollers, their axial distance from one another is preferably adjustable.
  • the pressure rollers are preferably interchangeable.
  • the pressure rollers can also use interchangeable profiled roller cylinders or roll cylinder rings, which preferably a different rolled profile and / or a different one Have cylinder diameter.
  • the pressure rollers or the roller cylinders or roller cylinder rings can not only be circular in cross section, but also at least partially have oval shape to different Form thicknesses in the transverse direction of a board.
  • a method for manufacturing an exhaust housing part provides in particular a prefabrication of a one-piece part reinforced board by rolling a strip material.
  • the board is made of a strip material as a one-piece, profiled sheet metal part of different thickness with at least one band section of smaller thickness and at least prefabricated a section of tape of greater thickness that the manufactured exhaust gas housing part (half shell, funnel, cylinder locally) at least in a wall area.
  • the one-piece, profiled sheet metal part is, for example in an embossing tool consisting at least of stamp and Stamped in order to in particular an (upper or lower) Form half-shell. It is understood that stamp and / or die of the embossing tool for the partially thicker one
  • the circuit board is configured or recessed accordingly.
  • the aforementioned board can not only one stamping process, but as a prefabricated semi-finished product in a corresponding Tool also undergo a winding process to exhaust housing parts in a wrap or jacket design with partial To produce jacket reinforcement.
  • the wrapped shells, Pipes or jacket are preferably with a longitudinal weld provided, in particular with a laser weld.
  • the invention advantageously makes exhaust gas housing parts, in particular embossed half-shells of exhaust silencers and Exhaust gas catalysts, can be designed in a lightweight design, without loss to have to accept strength or dimensional stability.
  • the exhaust housing parts are only in those places where special demands are placed on strength, in the wall thickness by increasing the profile accordingly partially reinforced. In all other places is the wall thickness the board or the individual sheets low, so that with the overall wall reduction there a weight reduction and save material.
  • According to the state of the Technology would have a single-wall design of an exhaust housing part there, too, a greater thickness not required per se a single sheet or a board designed or on Double wall construction can be transferred. Because the board not even from several assembled, welded together Individual parts, but is made in one piece, also do not have to put together individual parts and with each other are welded, which simplifies the manufacturing process.
  • the invention is particularly suitable for bowl-shaped Parts for exhaust silencers and catalytic converters, however also for other parts where different Wall thickness while respecting the requirements regarding structure-borne noise, Heat shielding and durability a weight reduction is possible. So it is preferably half-shell-shaped Parts of an exhaust system partially on selected Places to maintain function, strength and heat shielding strengthened. The boards will be in front of you Embossing or winding into the final shape from cut sheets rolled. The function of the manufactured exhaust housing part improved.
  • an exhaust gas housing part in the form of an exhaust silencer 2 for an exhaust system of a motor vehicle as well as boards required for production 1 in different Design variants with manufacturing tools shown.
  • the exhaust muffler 2 in half-shell construction has one upper and a lower half-shell 6, in their horizontal Parting plane by means of a circumferential fold or an edge weld 20 are firmly connected.
  • the circuit board 1 is a one-piece, profiled Rolled sheet metal part of different thickness with at least one Band section 10 of smaller thickness S2 and at least one Band section 11 of greater thickness S1, which is the manufactured exhaust housing part (Half-shell, funnel, cylinder or nozzle) at least locally reinforced in a wall area.
  • the manufactured exhaust housing part Half-shell, funnel, cylinder or nozzle
  • the band section 11 of greater thickness can be at least one raised one be narrow longitudinal web or at least according to Figure 6 additionally include a raised narrow longitudinal web 12.
  • the board 1 or the rolled sheet metal part can be at least on one Have a rolled-in pattern 13 according to FIG. 8, which, for example, longitudinal and / or horizontal stripes, checks or can be circular or square knobs.
  • the band sections 10, 11 are preferably linear in the longitudinal direction of the exhaust gas housing part to be manufactured according to FIG. 1 trained, but can with the appropriate rolling profile of Manufacturing tool can also be configured differently.
  • the band sections 10, 11 in The transverse direction of the exhaust gas housing part to be produced is expanded in the middle or are restricted and a curved convex Connecting edge 7 according to Figure 4 or a curved connecting edge 8 according to Figure 5 in the longitudinal direction of the finished Have exhaust housing part.
  • the reference number 9 denotes a round transition between the thinner and thicker Band sections 10 and 11.
  • the band sections 10, 11 can also be linear Have connecting edge 15 which is oblique with respect to the longitudinal direction of the exhaust gas housing part to be produced runs as this is illustrated, for example, in FIGS. 6 and 7 is.
  • FIGS. 9 and 10 two are in opposite directions driven profiled pressure rollers 16, 17 provided the Profile the negative profile to be produced shown in Figure 1 Board 1 corresponds.
  • the axial distance d between the two axially parallel Pressure rollers 16, 17 are adjustable.
  • the profiled pressure rollers are preferred to those profiled differently Interchangeable printing rollers.
  • the pressure rollers themselves can be replaced with interchangeable profiled cylinders 18 or roll cylinder rings have, such as this shown with a broken line in Figure 10 is.
  • the interchangeable roller cylinders 18 or roller cylinder rings have different rolled profiles and / or different Cylinder diameter to different manufacturing profiles and sizes of circuit boards 1 for example according to the Figures 4 to 8 meet.
  • the pressure rollers 16, 17 or the roller cylinders 18 or roller cylinder rings can over the entire axial length or over an axial partial length a cross section in oval shape according to the figure 11 or locally have at least one indentation, which in the final shape of an embossed or wound circuit board 1 corresponds to a wall reinforcement area.
  • a method for producing an exhaust housing part with a board as a semi-finished product provides that the board 1 a strip material as a one-piece, profiled sheet metal part different thickness with at least one band section 10 smaller thickness S2 and at least one band section 11 of greater thickness S1 in a rolling device Figures 9 to 11 is prefabricated, the band section 11 with the greater thickness S2 the manufactured exhaust gas housing part (Half-shell, funnel, cylinder or nozzle) at least locally reinforced in a wall area.
  • Such a pre-fabricated board 1 is in a tool 12 according to the final shape of a half-shell 6 according to the figures 13 and 2 coined.
  • the tool comprises a die 3, a retaining ring 4 and one Stamp 5.
  • the prefabricated circuit board 1 is placed on the holding ring 4 in advance positioned. Then the die 3 closes in the direction of the retaining ring 4 to clamp the prefabricated flat board 1. in the The stamp is connected to it in the direction of the arrow P according to FIG 14 moves upwards and the embossing process of the half-shell 6 carried out from the semi-finished product of the prefabricated board 1, whereby for embossing also the die 3 together with the holding ring 4 against the then stationary stamp 5 can be moved down.
  • the board 1 After completion of the stamping process, the board 1 receives the in Figure 12 drawn in the die 3 form.
  • the above-mentioned blanks 1 can not only be an embossing process, but as a prefabricated semi-finished product in a corresponding Tool also undergo a wrapping process to get wound Exhaust housing parts in a winding or jacket design to be manufactured with partial jacket reinforcement.
  • the coiled Shells, pipes or jackets are preferably made with a Longitudinal weld, in particular with a laser weld, Mistake.

Abstract

The component for a car exhaust comprises a blank (1) with a thick central section (11) and thinner edges (10). This is pressed to form half-shells for a noise-damping sleeve or catalytic unit or is bent to form e.g. a connector. Independent claims are included for: (a) a rolling machine for making the blank with two profiled rollers (16, 17); and (b) a method for making a component for a car exhaust, as described above.

Description

Die Erfindung betrifft ein Abgas-Gehäuseteil eines Kraftfahrzeuges, insbesondere für einen Abgas-Schalldämpfer oder einen Abgas-Katalysator eines Personenkraftfahrzeuges, mit einer Platine als Halbzeug, die nach einem Prägevorgang in einem Werkzeug eine obere Halbschale oder eine untere Halbschale eines Halbschalen-Schalldämpfers oder -Katalysators oder nach einem Abwickelvorgang in einem Werkzeug einen gewickelten Abgas-Trichter oder -Zylinder, oder einen Abgas-Anschlußstutzen ausbildet.The invention relates to an exhaust gas housing part of a motor vehicle, especially for an exhaust muffler or Exhaust gas catalytic converter of a passenger car, with a Blank as a semi-finished product, which after an embossing process in one Tool an upper half shell or a lower half shell a half-shell muffler or catalytic converter or after an unwound operation in a tool a wound exhaust funnel or cylinder, or an exhaust connection piece formed.

Gehäuse von Abgas-Schalldämpfern oder Abgas-Katalysatoren für Kraftfahrzeuge in Halbschalen- oder Wickel- bzw. Mantelbauweise, sowie Abgas-Gehäuseteile wie Anschlußrohre, -stutzen oder -Trichter werden nach dem Stand der Technik bei erhöhten Ansprüchen an die Festigkeit, Formstabilität und Qualität aus Platinen entweder einwandig mit großer Wandstärke oder aus zwei Platinen doppelwandig ausgebildet. Gegebenfalls sorgen zusätzliche Versteifungsrippen oder Sicken im Gehäuseteil für zusätzliche Stabilität. Die Herstellung sowohl doppelwandiger Gehäuseteile als auch einwandiger Gehäuseteile mit vergleichsweise großer Wandstärke einer Platine ist aufwändig. Auch benötigt man für eine hinreichend stabile Bauweise eines Abgasgehäuses oder Abgas-Gehäuseteils viel Material. Von Nachteil sind hohe Materialkosten, erhöhtes Gewicht der Abgasanlage, sowie hoher Benzinverbrauch des Kraftfahrzeuges.Housing of exhaust silencers or exhaust gas catalysts for Motor vehicles in half-shell or winding or jacket construction, as well as exhaust housing parts such as connecting pipes and sockets or funnels are increased according to the prior art Requirements for strength, dimensional stability and quality Boards either single-walled with a large wall thickness or made of two boards are double-walled. If necessary, worry additional stiffening ribs or beads in the housing part for additional stability. Manufacturing both double-walled Housing parts as well as single-walled housing parts with comparatively large wall thickness of a board is complex. You also need one for a sufficiently stable construction Exhaust housing or exhaust housing part a lot of material. Of Disadvantages are high material costs, increased weight of the exhaust system, as well as high petrol consumption of the motor vehicle.

Aufgabe der Erfindung ist Schaffung eines Abgas-Gehäuseteils eines Kraftfahrzeuges der eingangs genannten Art mit einer besonderen Platine als Halbzeug, sowie ein Herstellungsverfahren einer Platine bzw. eines Abgas-Gehäuseteils, welche bzw. welches eine hohe Festigkeit und eine hohe Formstabilität aufweist und gleichwohl leichtgewichtig ist. The object of the invention is to provide an exhaust gas housing part a motor vehicle of the type mentioned with a special board as a semi-finished product, as well as a manufacturing process a circuit board or an exhaust housing part, which or which has high strength and high dimensional stability has and yet is lightweight.

Diese Aufgabe wird durch ein Abgas-Gehäuseteil nach dem unabhängigen Anspruch 1 gelöst. Vorteilhafte Weiterbildungen ergeben sich aus den abhängigen Ansprüchen 2 bis 9.This task is performed by an exhaust housing part according to the independent Claim 1 solved. Advantageous further developments result themselves from the dependent claims 2 to 9.

Eine Herstellungsvorrichtung kennzeichnet sich durch die Merkmale des Anspruchs 10. Vorteilhafte Weiterbildungen ergeben sich aus den abhängigen Ansprüchen 11 bis 15.A manufacturing device is characterized by the Features of claim 10. Advantageous further developments result resulting from the dependent claims 11 to 15.

Ein Herstellungsverfahren einer Platine bzw. eines Abgas-Gehäuseteils kennzeichnet sich durch die Merkmale des Anspruchs 16.A manufacturing process of a circuit board or an exhaust gas housing part is characterized by the features of the claim 16th

Wesen der Erfindung ist ein besonderer Aufbau einer einteiligen Platine in einer Vorfertigung für einen zu fertigenden Abgas-Schalldämpfer, Abgas-Katalysator, Abgas-Trichter, Abgas-Zylindermantel, Abgas-Stutzen oder dergleichen in Halbschalen- oder Wickel- bzw. Mantelbauweise.The essence of the invention is a special structure of a one-piece PCB in a prefabrication for one to be manufactured Exhaust silencer, exhaust catalytic converter, exhaust funnel, exhaust cylinder jacket, Exhaust nozzle or the like in half-shell or winding or jacket construction.

Insbesondere kennzeichnet sich ein Abgas-Gehäuseteil eines Kraftfahrzeuges, insbesondere für einen Abgas-Schalldämpfer oder einen Abgas-Katalysator eines Personenkraftfahrzeuges, mit einer Platine als Halbzeug, die nach einem Prägevorgang in einem Werkzeug eine obere Halbschale oder eine untere Halbschale eines Halbschalen-Schalldämpfers oder -Katalysators oder nach einem Abwickelvorgang in einem Werkzeug einen gewickelten Abgas-Trichter oder -Zylinder, oder einen Abgas-Anschlußstutzen ausbildet, durch eine Platine in Form eines einstückigen, profilierten Walzblechteils unterschiedlicher Dicke mit zumindest einem Bandabschnitt kleinerer Dicke und zumindest einem Bandabschnitt größerer Dicke, der das gefertigte Abgas-Gehäuseteil (Halbschale, Trichter, Zylinder oder Stutzen) zumindest in einem Wandbereich örtlich verstärkt.In particular, an exhaust gas housing part identifies one Motor vehicle, especially for an exhaust silencer or an exhaust gas catalytic converter of a passenger car, with a blank as a semi-finished product after an embossing process an upper half shell or a lower one in one tool Half-shell of a half-shell silencer or catalytic converter or after unwinding in a tool wound exhaust funnel or cylinder, or an exhaust connection piece trained by a circuit board in the form of a one-piece, profiled sheet metal part different Thickness with at least one band section of smaller thickness and at least one band section of greater thickness that the manufactured Exhaust housing part (half shell, funnel, cylinder or Locally) at least in a wall area.

Vorzugsweise weist die Platine zwei seitliche Bandabschnitte kleinerer Dicke und einen dazwischen liegenden Bandabschnitt größerer Dicke auf. The circuit board preferably has two lateral band sections smaller thickness and an intermediate band section greater thickness.

Die beiden seitlichen Bandabschnitte kleinerer Dicke können gleich ausgebildet sein.The two side band sections of smaller thickness can be the same.

Der Bandabschnitt größerer Dicke kann zumindest ein erhabener schmaler Längssteg sein oder zumindest einen erhabenen schmalen Längssteg zusätzlich umfassen.The band section of greater thickness can be at least one raised one be narrow longitudinal web or at least a raised narrow Also include the longitudinal bar.

Gegebenenfalls besitzt das Walzblechteil zumindest auf einer Oberfläche ein eingewalztes Muster, welches vorzugsweise Längs- und/oder Querstreifen, Karos oder kreisrunde oder quadratische Noppen sind.The sheet metal part may have at least one Surface a rolled pattern, which preferably Vertical and / or horizontal stripes, checks or circular or square Pimples are.

Die Bandabschnitte sind im besonderen linear in Längsrichtung des zu fertigenden Abgas-Gehäuseteils ausgebildet.The band sections are particularly linear in the longitudinal direction of the exhaust gas housing part to be manufactured.

Alternativ können aber auch die Bandabschnitte in Querrichtung des zu fertigenden Abgas-Gehäuseteils mittig erweitert bzw. eingeschränkt sein und einen gebogenen Verbindungsrand in Längsrichtung des zu fertigenden Abgas-Gehäuseteils aufweisen.Alternatively, however, the band sections can also be in the transverse direction of the exhaust housing part to be manufactured expanded in the middle or be restricted and a curved connecting edge have in the longitudinal direction of the exhaust gas housing part to be manufactured.

In anderer Ausgestaltung können die Bandabschnitte ferner einen linearen Verbindungsrand aufweisen, der schräg bezüglich der Längsrichtung des zu fertigenden Abgas-Gehäuseteils verläuft.In another embodiment, the band sections can also have a linear connection edge that is oblique with respect the longitudinal direction of the exhaust gas housing part to be manufactured runs.

Eine vorteilhafte Walzvorrichtung zur Herstellung einer Platine sieht zumindest zwei profilierte Druckwalzen vor, deren axialer Abstand zueinander vorzugsweise einstellbar ist.An advantageous rolling device for producing a board provides at least two profiled pressure rollers, their axial distance from one another is preferably adjustable.

Für eine Herstellung eines anderen Profils einer Platine sind die Druckwalzen vorzugsweise austauschbar.For making a different profile of a board are the pressure rollers are preferably interchangeable.

Auch können die Druckwalzen austauschbare profilierte Walz-Zylinder bzw. Walz-Zylinderringe besitzen, die vorzugsweise ein unterschiedliches Walzprofil und/oder einen unterschiedlichen Zylinderdurchmesser aufweisen.The pressure rollers can also use interchangeable profiled roller cylinders or roll cylinder rings, which preferably a different rolled profile and / or a different one Have cylinder diameter.

Die Druckwalzen bzw. die Walz-Zylinder bzw. Walz-Zylinderringe können im Querschnitt nicht nur Kreisform, sondern auch zumindest teilweise Ovalform besitzen, um unterschiedliche Dicken in Querrichtung einer Platine auszubilden.The pressure rollers or the roller cylinders or roller cylinder rings can not only be circular in cross section, but also at least partially have oval shape to different Form thicknesses in the transverse direction of a board.

Ein Verfahren zur Herstellung eines Abgas-Gehäuseteils sieht insbesondere eine Vorfertigung einer einstückigen partiell verstärkten Platine durch Walzen eines Bandmaterials vor.A method for manufacturing an exhaust housing part provides in particular a prefabrication of a one-piece part reinforced board by rolling a strip material.

Insbesondere wird die Platine aus einem Bandmaterial als einstückiges, profiliertes Walzblechteil unterschiedlicher Dicke mit zumindest einem Bandabschnitt kleinerer Dicke und zumindest einem Bandabschnitt größerer Dicke vorgefertigt, der das gefertigte Abgas-Gehäuseteil (Halbschale, Trichter, Zylinder oder Stutzen) zumindest in einem Wandbereich örtlich verstärkt.In particular, the board is made of a strip material as a one-piece, profiled sheet metal part of different thickness with at least one band section of smaller thickness and at least prefabricated a section of tape of greater thickness that the manufactured exhaust gas housing part (half shell, funnel, cylinder locally) at least in a wall area.

Das einstückige, profilierte Walzblechteil wird beispielsweise in einem Prägewerkzeug bestehend zumindest aus Stempel und Matrize geprägt, um insbesondere eine (obere oder untere) Halbschale auszubilden. Es versteht sich, daß Stempel und/oder Matrize des Prägewerkzeuges für die partiell dickere Platine entsprechend konfiguriert bzw. ausgespart ist/sind.The one-piece, profiled sheet metal part is, for example in an embossing tool consisting at least of stamp and Stamped in order to in particular an (upper or lower) Form half-shell. It is understood that stamp and / or die of the embossing tool for the partially thicker one The circuit board is configured or recessed accordingly.

Vorgenannte Platine kann nicht nur einem Prägevorgang, sondern als vorgefertigtes Halbzeug in einem entsprechenden Werkzeug auch einem Wickelvorgang unterzogen werden, um Abgas-Gehäuseteile in Wickel- bzw. Mantelbauweise mit partieller Mantelverstärkung herzustellen. Die gewickelten Schalen, Rohre oder Mantel werden vorzugsweise mit einer Längsschweißnaht versehen, insbesondere mit einer Laserschweißnaht. The aforementioned board can not only one stamping process, but as a prefabricated semi-finished product in a corresponding Tool also undergo a winding process to exhaust housing parts in a wrap or jacket design with partial To produce jacket reinforcement. The wrapped shells, Pipes or jacket are preferably with a longitudinal weld provided, in particular with a laser weld.

Durch die Erfindung sind mit Vorteil Abgas-Gehäuseteile, insbesondere geprägte Halbschalen von Abgas-Schalldämpfern und Abgas-Katalysatoren, in Leichtbauweise gestaltbar, ohne Einbußen an Festigkeit oder an Formstabilität hinnehmen zu müssen. Die Abgas-Gehäuseteile sind nur an denjenigen Stellen, an denen besondere Forderungen an Festigkeit gestellt werden, in der Wanddicke durch entsprechende Vergrößerung des Profils partiell verstärkt. An allen anderen Stellen ist die Wandstärke der Platine bzw. der Einzelbleche gering, so daß sich mit der dortigen Wandreduzierung insgesamt eine Gewichtsreduzierung und Materialeinsparung ergeben. Nach dem Stand der Technik müßte bei einwandiger Ausbildung eines Abgas-Gehäuseteils auch dort eine an sich nicht benötigte größere Dicke eines Einzelbleches bzw. einer Platine gestaltet oder auf Doppelwand-Bauweise übergegangen werden. Da die Platine selbst nicht aus mehreren zusammengesetzten, miteinander verschweißten Einzelteilen, sondern einstückig hergestellt ist, müssen auch keine Einzelteile zusammengesetzt und miteinander verschweißt werden, was den Fertigungsvorgang vereinfacht.The invention advantageously makes exhaust gas housing parts, in particular embossed half-shells of exhaust silencers and Exhaust gas catalysts, can be designed in a lightweight design, without loss to have to accept strength or dimensional stability. The exhaust housing parts are only in those places where special demands are placed on strength, in the wall thickness by increasing the profile accordingly partially reinforced. In all other places is the wall thickness the board or the individual sheets low, so that with the overall wall reduction there a weight reduction and save material. According to the state of the Technology would have a single-wall design of an exhaust housing part there, too, a greater thickness not required per se a single sheet or a board designed or on Double wall construction can be transferred. Because the board not even from several assembled, welded together Individual parts, but is made in one piece, also do not have to put together individual parts and with each other are welded, which simplifies the manufacturing process.

Die Erfindung eignet sich insbesondere bei schalenförmigen Teilen für Abgas-Schalldämpfer und Abgas-Katalysatoren, aber auch bei anderen Teilen, bei denen durch unterschiedliche Wanddicke unter Wahrung der Ansprüche hinsichtlich Körperschall, Hitzeabschirmung und Dauerhaltbarkeit eine Gewichtsreduzierung möglich ist. Es werden also vorzugsweise halbschalenförmige Teile einer Abgasanlage partiell an ausgewählten Stellen zur Erhaltung der Funktion, Festigkeit und Wärmeabschirmung verstärkt. Die Platinen werden noch vor einem Prägen oder Wickeln in die Endform aus zugeschnittenen Blechen gewalzt. Auch wird die Funktion des gefertigten Abgas-Gehäuseteils verbessert.The invention is particularly suitable for bowl-shaped Parts for exhaust silencers and catalytic converters, however also for other parts where different Wall thickness while respecting the requirements regarding structure-borne noise, Heat shielding and durability a weight reduction is possible. So it is preferably half-shell-shaped Parts of an exhaust system partially on selected Places to maintain function, strength and heat shielding strengthened. The boards will be in front of you Embossing or winding into the final shape from cut sheets rolled. The function of the manufactured exhaust housing part improved.

Die Erfindung wird nachfolgend anhand von Ausführungsbeispielen unter Bezugnahme auf die beigefügte Zeichnung näher beschrieben; es zeigen:

Figur 1
eine walzgepreßte Platine in einer ersten Ausführungsvariante zur Herstellung einer einwandigen Halbschale eines Abgas-Schalldämpfers in einer schematischen perspektivischen Ansicht,
Figur 2
Platinen nach Figur 1 in ihrer Endform geprägter Halbschalen in einem schematischen Querschnitt,
Figur 3
einen mit Platinen nach Figur 1 und 2 gefertigten Abgas-Schalldämpfer in einer perspektivischen Ansicht,
Figuren 4 bis 8
weitere Platinen in einer schematischen Draufsicht mit unterschiedlich geformten Bandabschnitten kleinerer und größerer Dicke,
Figuren 9und 10
eine Walzvorrichtung zur Fertigung einer profilierten einstückigen Platine in zwei Ausführungsvarianten,
Figur 11
einen Querschnitt eines Walzenabschnitts von gegenläufig angetriebenen Druckwalzen der Walzvorrichtung nach den Figuren 9 und 10,
Figur 12
ein Prägewerkzeug zur Fertigung von Halbschalen-Gehäusen aus Platinen nach den Figuren 1 bis 8, und
Figur 13
eine im Prägewerkzeug nach Figur 12 geprägte Platine bzw. gefertigte Halbschale in einem schematischen Querschnitt.
The invention is described below using exemplary embodiments with reference to the accompanying drawings; show it:
Figure 1
a roll-pressed circuit board in a first embodiment for producing a single-walled half-shell of an exhaust gas silencer in a schematic perspective view,
Figure 2
1 in their final form, embossed half-shells in a schematic cross section,
Figure 3
a perspective view of an exhaust gas muffler manufactured with boards according to FIGS.
Figures 4 to 8
further boards in a schematic top view with differently shaped strip sections of smaller and larger thickness,
Figures 9 and 10
a rolling device for producing a profiled one-piece blank in two design variants,
Figure 11
3 shows a cross section of a roller section of oppositely driven pressure rollers of the rolling device according to FIGS. 9 and 10,
Figure 12
an embossing tool for the production of half-shell housings from circuit boards according to Figures 1 to 8, and
Figure 13
a blank or manufactured half-shell embossed in the embossing tool according to FIG. 12 in a schematic cross section.

In der Zeichnung sind ein Abgas-Gehäuseteil in Form eines Abgas-Schalldämpfers 2 für eine Abgasanlage eines Kraftfahrzeugs sowie zur Fertigung benötigte Platinen 1 in unterschiedlichen Ausführungsvarianten nebst Herstellungswerkzeugen dargestellt.In the drawing are an exhaust gas housing part in the form of an exhaust silencer 2 for an exhaust system of a motor vehicle as well as boards required for production 1 in different Design variants with manufacturing tools shown.

Der Abgas-Schalldämpfer 2 in Halbschalen-Bauweise besitzt eine obere und eine untere Halbschale 6, die in ihrer horizontalen Trennebene mittels eines Umfangsfalzes oder einer Randschweißung 20 miteinander fest verbunden sind.The exhaust muffler 2 in half-shell construction has one upper and a lower half-shell 6, in their horizontal Parting plane by means of a circumferential fold or an edge weld 20 are firmly connected.

Die Platine 1 für das Abgas-Gehäuseteil des Kraftfahrzeuges, insbesondere für den Abgas-Schalldämpfer 2 oder einen Abgas-Katalysator eines Personenkraftfahrzeuges, die nach einem Prägevorgang in einem Werkzeug 3, 4, 5 eine obere Halbschale oder eine untere Halbschale eines Halbschalen-Schalldämpfers oder -Katalysators oder nach einem Abwickelvorgang in einem Werkzeug einen gewickelten Abgas-Trichter oder -Zylinder, oder einen Abgas-Anschlußstutzen ausbildet, besitzt einen besonderen Aufbau.The circuit board 1 for the exhaust gas housing part of the motor vehicle, in particular for the exhaust muffler 2 or an exhaust gas catalytic converter of a passenger car, according to a Embossing process in a tool 3, 4, 5 an upper half shell or a lower half-shell of a half-shell silencer or catalyst or after unwinding in one Tool a wound exhaust funnel or cylinder, or forms an exhaust connection, has a special Construction.

Insbesondere ist die Platine 1 ein einstückiges, profiliertes Walzblechteil unterschiedlicher Dicke mit zumindest einem Bandabschnitt 10 kleinerer Dicke S2 und zumindest einem Bandabschnitt 11 größerer Dicke S1, der das gefertigte Abgas-Gehäuseteil (Halbschale, Trichter, Zylinder oder Stutzen) zumindest in einem Wandbereich örtlich verstärkt.In particular, the circuit board 1 is a one-piece, profiled Rolled sheet metal part of different thickness with at least one Band section 10 of smaller thickness S2 and at least one Band section 11 of greater thickness S1, which is the manufactured exhaust housing part (Half-shell, funnel, cylinder or nozzle) at least locally reinforced in a wall area.

Im besonderen sind gemäß den Figuren 1, 4, 5 und 6 zwei seitliche Bandabschnitte 10 kleinerer Dicke S2 und ein dazwischen liegender Bandabschnitt 11 größerer Dicke S1 vorgesehen. Die beiden seitlichen Bandabschnitte 10 kleinerer Dicke S2 sind gleich ausgebildet.In particular, according to Figures 1, 4, 5 and 6 are two lateral Band sections 10 of smaller thickness S2 and one in between lying band section 11 of greater thickness S1 is provided. The are two lateral band sections 10 of smaller thickness S2 equally trained.

Der Bandabschnitt 11 größerer Dicke kann zumindest ein erhabener schmaler Längssteg sein oder gemäß Figur 6 zumindest einen erhabenen schmalen Längssteg 12 zusätzlich umfassen. The band section 11 of greater thickness can be at least one raised one be narrow longitudinal web or at least according to Figure 6 additionally include a raised narrow longitudinal web 12.

Die Platine 1 bzw das Walzblechteil kann zumindest auf einer Oberfläche ein eingewalztes Muster 13 gemäß Figur 8 aufweisen, welches beispielsweise Längs- und/oder Querstreifen, Karos oder kreisrunde oder quadratische Noppen sein können.The board 1 or the rolled sheet metal part can be at least on one Have a rolled-in pattern 13 according to FIG. 8, which, for example, longitudinal and / or horizontal stripes, checks or can be circular or square knobs.

Die Bandabschnitte 10, 11 sind vorzugsweise linear in Längsrichtung des zu fertigenden Abgas-Gehäuseteils gemäß Figur 1 ausgebildet, können aber mit entsprechendem Walzprofil des Herstellungswerkzeuges auch anders konfiguriert sein.The band sections 10, 11 are preferably linear in the longitudinal direction of the exhaust gas housing part to be manufactured according to FIG. 1 trained, but can with the appropriate rolling profile of Manufacturing tool can also be configured differently.

So können die beispielsweise die Bandabschnitte 10, 11 in Querrichtung des zu fertigenden Abgas-Gehäuseteils mittig erweitert bzw. eingeschränkt sind und einen gebogenen konvexen Verbindungsrand 7 gemäß Figur 4 oder einen gebogenen Verbindnungsrand 8 gemäß Figur 5 in Längsrichtung des zu fertigenden Abgas-Gehäuseteils aufweisen. Das Bezugszeichen 9 kennzeichnet einen runden Übergang zwischen dem dünneren und dickeren Bandabschnitt 10 und 11.For example, the band sections 10, 11 in The transverse direction of the exhaust gas housing part to be produced is expanded in the middle or are restricted and a curved convex Connecting edge 7 according to Figure 4 or a curved connecting edge 8 according to Figure 5 in the longitudinal direction of the finished Have exhaust housing part. The reference number 9 denotes a round transition between the thinner and thicker Band sections 10 and 11.

Die Bandabschnitte 10, 11 können aber auch einen linearen Verbindungsrand 15 aufweisen, der schräg bezüglich der Längsrichtung des zu fertigenden Abgas-Gehäuseteils verläuft, wie dies beispielsweise in den Figuren 6 und 7 veranschaulicht ist.The band sections 10, 11 can also be linear Have connecting edge 15 which is oblique with respect to the longitudinal direction of the exhaust gas housing part to be produced runs as this is illustrated, for example, in FIGS. 6 and 7 is.

Varianten einer Walzvorrichtung zur Herstellung einer Platine 1 sind in den Figuren 9 bis 11 gezeigt.Variants of a rolling device for producing a circuit board 1 are shown in Figures 9 to 11.

Insbesondere sind gemäß den Figuren 9 und 10 zwei gegenläufig angetriebene profilierte Druckwalzen 16, 17 vorgesehen, deren Profil dem Negativprofil der in Figur 1 dargestellten herzustellenden Platine 1 entspricht.In particular, according to FIGS. 9 and 10, two are in opposite directions driven profiled pressure rollers 16, 17 provided the Profile the negative profile to be produced shown in Figure 1 Board 1 corresponds.

Der Axialabstand d der beiden zueinander achsparallel verlaufenden Druckwalzen 16, 17 ist einstellbar. The axial distance d between the two axially parallel Pressure rollers 16, 17 are adjustable.

Die profilierten Druckwalzen sind bevorzugt gegen anders profilierte Druckwalzen austauschbar.The profiled pressure rollers are preferred to those profiled differently Interchangeable printing rollers.

Die Druckwalzen selbst können austauschbare profilierte Walz-Zylinder 18 bzw. Walz-Zylinderringe besitzen, wie dies beispielsweise mit strichlierter Linie in Figur 10 dargestellt ist.The pressure rollers themselves can be replaced with interchangeable profiled cylinders 18 or roll cylinder rings have, such as this shown with a broken line in Figure 10 is.

Die austauschbaren Walz-Zylinder 18 bzw. Walz-Zylinderringe besitzen unterschiedliches Walzprofil und/oder unterschiedlichen Zylinderdurchmesser, um unterschiedlichen Herstellungsprofilen und Größen von Platinen 1 beispielsweise nach den Figuren 4 bis 8 gerecht zu werden.The interchangeable roller cylinders 18 or roller cylinder rings have different rolled profiles and / or different Cylinder diameter to different manufacturing profiles and sizes of circuit boards 1 for example according to the Figures 4 to 8 meet.

Die Druckwalzen 16, 17 bzw. die Walz-Zylinder 18 bzw. Walz-Zylinderringe können über die gesamte Axiallänge oder über eine axiale Teillänge einen Querschnitt in Ovalform gemäß Figur 11 oder örtlich zumindest eine Einbuchtung besitzen, welche in der Endform einer geprägten oder gewickelten Platine 1 einem Wandverstärkungsbereich entspricht.The pressure rollers 16, 17 or the roller cylinders 18 or roller cylinder rings can over the entire axial length or over an axial partial length a cross section in oval shape according to the figure 11 or locally have at least one indentation, which in the final shape of an embossed or wound circuit board 1 corresponds to a wall reinforcement area.

Ein Verfahren zur Herstellung eines Abgas-Gehäuseteils mit einer Platine als Halbzeug sieht vor, daß die Platine 1 aus einem Bandmaterial als einstückiges, profiliertes Walzblechteil unterschiedlicher Dicke mit zumindest einem Bandabschnitt 10 kleinerer Dicke S2 und zumindest einem Bandabschnitt 11 größerer Dicke S1 in einer Walzvorrichtung nach den Figuren 9 bis 11 vorgefertigt wird, wobei der Bandabschnitt 11 mit der größeren Dicke S2 das gefertigte Abgas-Gehäuseteil (Halbschale, Trichter, Zylinder oder Stutzen) zumindest in einem Wandbereich örtlich verstärkt.A method for producing an exhaust housing part with a board as a semi-finished product provides that the board 1 a strip material as a one-piece, profiled sheet metal part different thickness with at least one band section 10 smaller thickness S2 and at least one band section 11 of greater thickness S1 in a rolling device Figures 9 to 11 is prefabricated, the band section 11 with the greater thickness S2 the manufactured exhaust gas housing part (Half-shell, funnel, cylinder or nozzle) at least locally reinforced in a wall area.

Eine dergestalt vorgefertigte Platine 1 wird in einem Werkzeug nach Figur 12 in die Endform einer Halbschale 6 gemäß den Figuren 13 bzw. 2 geprägt. Such a pre-fabricated board 1 is in a tool 12 according to the final shape of a half-shell 6 according to the figures 13 and 2 coined.

Das Werkzeug umfaßt eine Matrize 3, einen Haltering 4 und einen Stempel 5.The tool comprises a die 3, a retaining ring 4 and one Stamp 5.

Vorab wird die vorgefertigte Platine 1 auf dem Haltering 4 positioniert. Dann schließt die Matrize 3 in Richtung Haltering 4, um die vorgefertigte ebene Platine 1 einzuklemmen. Im Anschluß hieran wird der Stempel in Pfeilrichtung P gemäß Figur 14 nach oben bewegt und der Prägevorgang der Halbschale 6 aus dem Halbzeug der vorgefertigten Platine 1 durchgeführt, wobei zum Prägen auch die Matrize 3 nebst Haltering 4 gegen den dann stationären Stempel 5 nach unten bewegt werden kann.The prefabricated circuit board 1 is placed on the holding ring 4 in advance positioned. Then the die 3 closes in the direction of the retaining ring 4 to clamp the prefabricated flat board 1. in the The stamp is connected to it in the direction of the arrow P according to FIG 14 moves upwards and the embossing process of the half-shell 6 carried out from the semi-finished product of the prefabricated board 1, whereby for embossing also the die 3 together with the holding ring 4 against the then stationary stamp 5 can be moved down.

Nach Abschluß des Prägevorgangs erhält die Platine 1 die in Figur 12 in der Matrize 3 eingezeichnete Form.After completion of the stamping process, the board 1 receives the in Figure 12 drawn in the die 3 form.

Vorgenannte Platinen 1 können nicht nur einem Prägevorgang, sondern als vorgefertigtes Halbzeug in einem entsprechenden Werkzeug auch einem Wickelvorgang unterzogen werden, um gewickelte Abgas-Gehäuseteile in Wickel- bzw. Mantelbauweise mit partieller Mantelverstärkung herzustellen. Die gewickelten Schalen, Rohre oder Mantel werden vorzugsweise mit einer Längsschweißnaht, insbesondere mit einer Laserschweißnaht, versehen.The above-mentioned blanks 1 can not only be an embossing process, but as a prefabricated semi-finished product in a corresponding Tool also undergo a wrapping process to get wound Exhaust housing parts in a winding or jacket design to be manufactured with partial jacket reinforcement. The coiled Shells, pipes or jackets are preferably made with a Longitudinal weld, in particular with a laser weld, Mistake.

Claims (16)

Abgas-Gehäuseteil eines Kraftfahrzeuges, insbesondere für einen Abgas-Schalldämpfer (2) oder einen Abgas-Katalysator eines Personenkraftfahrzeuges, mit einer Platine (1) als Halbzeug, die nach einem Prägevorgang in einem Werkzeug (3, 4, 5) eine obere Halbschale oder eine untere Halbschale eines Halbschalen-Schalldämpfers oder -Katalysators oder nach einem Abwickelvorgang in einem Werkzeug einen gewickelten Abgas-Trichter oder -Zylinder, oder einen Abgas-Anschlußstutzen ausbildet,
dadurch gekennzeichnet, daß die Platine (1) ein einstückiges, profiliertes Walzblechteil unterschiedlicher Dicke mit zumindest einem Bandabschnitt (10) kleinerer Dicke (S2) und zumindest einem Bandabschnitt (11) größerer Dicke (S1) ist, der das gefertigte Abgas-Gehäuseteil (Halbschale, Trichter, Zylinder oder Stutzen) zumindest in einem Wandbereich örtlich verstärkt.Exhaust housing part of a motor vehicle, in particular for an exhaust muffler (2) or an exhaust gas catalytic converter of a passenger vehicle, with a blank (1) as a semi-finished product, which after an embossing process in a tool (3, 4, 5) is an upper half-shell or forms a lower half-shell of a half-shell muffler or catalytic converter or, after an unwinding process in a tool, forms a wound exhaust gas funnel or cylinder, or an exhaust gas connecting piece,
characterized in that the plate (1) is a one-piece, profiled sheet metal part of different thickness with at least one strip section (10) of smaller thickness (S2) and at least one strip section (11) of greater thickness (S1), which is the manufactured exhaust gas housing part (half-shell , Funnel, cylinder or nozzle) locally reinforced at least in a wall area. Abgas-Gehäuseteil nach Anspruch 1,
dadurch gekennzeichnet, daß die Platine (1) zwei seitliche Bandabschnitte (10) kleinerer Dicke (S2) und einen dazwischen liegenden Bandabschnitt (11) größerer Dicke (S1) aufweist.Exhaust housing part according to claim 1,
characterized in that the plate (1) has two lateral band sections (10) of smaller thickness (S2) and an intermediate band section (11) of greater thickness (S1). Abgas-Gehäuseteil nach Anspruch 2,
dadurch gekennzeichnet, daß die beiden seitlichen Bandabschnitte (10) kleinerer Dicke (S2) gleich ausgebildet sind.Exhaust housing part according to claim 2,
characterized in that the two lateral band sections (10) of smaller thickness (S2) are of identical design. Abgas-Gehäuseteil nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, daß der Bandabschnitt (11) größerer Dicke zumindest ein erhabener schmaler Längssteg ist oder zumindest einen erhabenen schmalen Längssteg (12) zusätzlich umfaßt.Exhaust housing part according to one of claims 1 to 3,
characterized in that the band section (11) of greater thickness is at least one raised narrow longitudinal web or additionally comprises at least one raised narrow longitudinal web (12). Abgas-Gehäuseteil nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, daß das Walzblechteil zumindest auf einer Oberfläche ein eingewalztes Muster (13) aufweist.Exhaust housing part according to one of claims 1 to 4,
characterized in that the rolled sheet metal part has a rolled pattern (13) on at least one surface. Abgas-Gehäuseteil nach Anspruch 5,
dadurch gekennzeichnet, daß das eingewalzte Muster (13) Längs- und/oder Querstreifen, Karos oder kreisrunde oder quadratische Noppen sind.Exhaust housing part according to claim 5,
characterized in that the rolled-in pattern (13) are longitudinal and / or transverse strips, checks or circular or square knobs. Abgas-Gehäuseteil nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet, daß die Bandabschnitte (10, 11) linear in Längsrichtung des zu fertigenden Abgas-Gehäuseteils ausgebildet sind.Exhaust housing part according to one of claims 1 to 6,
characterized in that the band sections (10, 11) are linear in the longitudinal direction of the exhaust gas housing part to be manufactured. Abgas-Gehäuseteil nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet, daß die Bandabschnitte (10, 11) in Querrichtung des zu fertigenden Abgas-Gehäuseteils mittig erweitert bzw. eingeschränkt sind und einen gebogenen Verbindungsrand (7 bzw. 8) in Längsrichtung des zu fertigenden Abgas-Gehäuseteils aufweisen.Exhaust housing part according to one of claims 1 to 6,
characterized in that the band sections (10, 11) in the transverse direction of the exhaust gas housing part to be manufactured are expanded or restricted in the center and have a curved connecting edge (7 or 8) in the longitudinal direction of the exhaust gas housing part to be manufactured. Abgas-Gehäuseteil nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet, daß die Bandabschnitte (10, 11) einen linearen Verbindungsrand (15) aufweisen, der schräg bezüglich der Längsrichtung des zu fertigenden Abgas-Gehäuseteils verläuft.Exhaust housing part according to one of claims 1 to 6,
characterized in that the band sections (10, 11) have a linear connecting edge (15) which runs obliquely with respect to the longitudinal direction of the exhaust gas housing part to be produced. Walzvorrichtung zur Herstellung einer Platine nach einem der Ansprüche 1 bis 9,
dadurch gekennzeichnet, daß zumindest zwei profilierte Druckwalzen (16, 17) vorgesehen sind.Rolling device for producing a blank according to one of claims 1 to 9,
characterized in that at least two profiled pressure rollers (16, 17) are provided. Walzvorrichtung nach Anspruch 10,
dadurch gekennzeichnet, daß der axiale Abstand (d) der beiden zueinander achsparallel verlaufenden Druckwalzen (16, 17) einstellbar ist.Rolling device according to claim 10,
characterized in that the axial distance (d) of the two pressure rollers (16, 17) running parallel to one another is adjustable. Walzvorrichtung nach Anspruch 10 oder 11,
dadurch gekennzeichnet, daß die Druckwalzen austauschbar sind.Rolling device according to claim 10 or 11,
characterized in that the pressure rollers are interchangeable. Walzvorrichtung nach einem der Ansprüche 10 bis 12,
dadurch gekennzeichnet, daß die Druckwalzen austauschbare profilierte Walz-Zylinder (18) besitzen.Rolling device according to one of claims 10 to 12,
characterized in that the pressure rollers have exchangeable profiled roller cylinders (18). Walzvorrichtung nach Anspruch 13,
dadurch gekennzeichnet, daß die Walz-Zylinder (18) unterschiedliches Walzprofil und/oder unterschiedlichen Zylinderdurchmesser besitzen.Rolling device according to claim 13,
characterized in that the rolling cylinders (18) have different rolling profiles and / or different cylinder diameters. Walzvorrichtung nach einem der Ansprüche 10 bis 13,
dadurch gekennzeichnet, daß die Druckwalzen (16, 17) bzw. die Walz-Zylinder (18) im Querschnitt zumindest teilweise Ovalform besitzen.Rolling device according to one of claims 10 to 13,
characterized in that the pressure rollers (16, 17) or the roller cylinders (18) are at least partially oval in cross-section. Verfahren zur Herstellung eines Abgas-Gehäuseteils mit einer Platine als Halbzeug nach einem der Ansprüche 1 bis 9 unter Zuhilfenahme einer Herstellungsvorrichtung nach einem der Ansprüche 10 bis 15,
dadurch gekennzeichnet, daß die Platine (1) aus einem Bandmaterial als einstückiges, profiliertes Walzblechteil unterschiedlicher Dicke mit zumindest einem Bandabschnitt (10) kleinerer Dicke (S2) und zumindest einem Bandabschnitt (11) größerer Dikke (S1) vorgefertigt wird, der das gefertigte Abgas-Gehäuseteil (Halbschale, Trichter, Zylinder oder Stutzen) zumindest in einem Wandbereich örtlich verstärkt.Method for producing an exhaust gas housing part with a blank as a semi-finished product according to one of claims 1 to 9 with the aid of a manufacturing device according to one of claims 10 to 15,
characterized in that the plate (1) is prefabricated from a strip material as a one-piece, profiled sheet metal part of different thickness with at least one strip section (10) of smaller thickness (S2) and at least one strip section (11) of greater thickness (S1), which contains the produced exhaust gas - Housing part (half-shell, funnel, cylinder or nozzle) locally reinforced at least in one wall area.
EP01130370A 2001-02-13 2001-12-20 Exhaust casing part for a motor vehicle, particularly for an exhaust silencer or an exhaust gas catalyst Expired - Lifetime EP1231366B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10106559 2001-02-13
DE10106559A DE10106559A1 (en) 2001-02-13 2001-02-13 Exhaust housing part of a motor vehicle

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EP1231366B1 EP1231366B1 (en) 2004-05-06

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US20020108428A1 (en) 2002-08-15
DE10106559A1 (en) 2002-08-29
US6892852B2 (en) 2005-05-17
DE50102197D1 (en) 2004-06-09
EP1231366B1 (en) 2004-05-06
ES2219476T3 (en) 2004-12-01

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