EP0780173A3 - Method of manufacturing a pipe section, particularly a branch pipe manifold and branch pipe manifold produced thereby - Google Patents

Method of manufacturing a pipe section, particularly a branch pipe manifold and branch pipe manifold produced thereby Download PDF

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Publication number
EP0780173A3
EP0780173A3 EP96119402A EP96119402A EP0780173A3 EP 0780173 A3 EP0780173 A3 EP 0780173A3 EP 96119402 A EP96119402 A EP 96119402A EP 96119402 A EP96119402 A EP 96119402A EP 0780173 A3 EP0780173 A3 EP 0780173A3
Authority
EP
European Patent Office
Prior art keywords
branch pipe
manifold
bent
pipe
manufacturing
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Withdrawn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
EP96119402A
Other languages
German (de)
French (fr)
Other versions
EP0780173A2 (en
Inventor
Norbert Klein
Jürgen Schwandner
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
Original Assignee
J Eberspaecher GmbH and Co KG
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 J Eberspaecher GmbH and Co KG filed Critical J Eberspaecher GmbH and Co KG
Publication of EP0780173A2 publication Critical patent/EP0780173A2/en
Publication of EP0780173A3 publication Critical patent/EP0780173A3/en
Withdrawn legal-status Critical Current

Links

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/08—Making tubes with welded or soldered seams
    • B21C37/0803—Making tubes with welded or soldered seams the tubes having a special shape, e.g. polygonal tubes
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
    • 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
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/22—Methods or apparatus for fitting, inserting or repairing different elements by welding or brazing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

Bei einem Verfahren zur Herstellung eines Rohrteiles, insbesondere einer Krümmer-Rohrabzweigung (1) einer Kraftfahrzeug-Abgasanlage, wird vorgeschlagen, daß ein Blechcoil- oder Platine-Rohteil in einem Folgeverbundwerkzeug (4) tiefgezogen und beschnitten wird zwecks Ausbildung eines Rohrteil-Halbzeuges (5), welches der abgewickelten Form des Rohrteil-Endzeuges entspricht. Das Rohrteil-Halbzeug (5) wird in weiteren Verfahrensschritten im Folgeverbundwerkzeug (4) vorgebogen und gewickelt. Ein schließlich fertiggebogenes Wickelteil (6) wird in seinem zusammengebogenen mittleren Berührungsbereich (7) gasdicht verschweißt. Ein derartiges Wickelverfahren ermöglicht eine deutlich kostengünstigere Fertigung als eine Herstellung eines vergleichbaren Teils nach dem Innenhochdruckverfahren.

Figure 00000001
In a method for producing a pipe part, in particular a manifold pipe branch (1) of a motor vehicle exhaust system, it is proposed that a sheet metal coil or blank part be deep-drawn and trimmed in a progressive tool (4) to form a semi-finished pipe part (5 ), which corresponds to the developed form of the tubular part end product. The pipe part semi-finished product (5) is pre-bent and wound in further process steps in the progressive tool (4). A finally bent winding part (6) is welded gas-tight in its bent middle contact area (7). Such a winding process enables a significantly more cost-effective production than the production of a comparable part using the internal high-pressure process.
Figure 00000001
EP96119402A 1995-12-22 1996-12-04 Method of manufacturing a pipe section, particularly a branch pipe manifold and branch pipe manifold produced thereby Withdrawn EP0780173A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1995148224 DE19548224A1 (en) 1995-12-22 1995-12-22 Method for producing a pipe part, in particular a manifold-pipe branch of a motor vehicle exhaust system, and a manifold-pipe branch manufactured according to this
DE19548224 1995-12-22

Publications (2)

Publication Number Publication Date
EP0780173A2 EP0780173A2 (en) 1997-06-25
EP0780173A3 true EP0780173A3 (en) 1998-10-21

Family

ID=7781071

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96119402A Withdrawn EP0780173A3 (en) 1995-12-22 1996-12-04 Method of manufacturing a pipe section, particularly a branch pipe manifold and branch pipe manifold produced thereby

Country Status (2)

Country Link
EP (1) EP0780173A3 (en)
DE (1) DE19548224A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000061311A1 (en) * 1999-04-13 2000-10-19 Joseph Mckenna Method of forming t-connectors
FR2811741B1 (en) * 2000-07-17 2003-06-27 Imphy Ugine Precision METHOD OF MANUFACTURING A STRUCTURAL ELEMENT HAVING A METALLIC WALL OF TUBULAR GENERAL FORM AND STRUCTURAL ELEMENT
DE10149381A1 (en) * 2001-10-06 2003-05-08 Daimler Chrysler Ag Method for producing a branch pipe
DE10358502B3 (en) 2003-12-13 2005-04-07 Daimlerchrysler Ag Production of a hollow profile used as a branched part for pipes comprises stamping a secondary molding element to connect to a further component in a pre-curved region before winding
CN103920744B (en) * 2014-05-04 2016-01-27 唐山诚达建设集团有限公司 A kind of band arm pipe fitting one process equipment
CN106077132B (en) * 2016-07-07 2019-02-05 燕山大学 A kind of manufacturing process and forming device of the double weld seam threeways of large plate system
CN110080869A (en) * 2018-01-26 2019-08-02 天纳克（苏州）排放***有限公司 Exhaust inlet pipe and its box-type exhaust gas post-treatment device
CN115673694B (en) * 2023-01-03 2023-03-03 内江东工设备制造股份有限公司 Manufacturing method of oversized steel bifurcated pipe

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE373874A (en) *
US1830262A (en) * 1928-09-21 1931-11-03 Rockwood Sprinkler Co Massachusetts Method of making pipe fittings
FR761992A (en) * 1933-09-26 1934-03-31 Cie Nat Radiateurs Pipe or tee fitting and its manufacturing process
US2713195A (en) * 1951-03-15 1955-07-19 Solar Aircraft Co Method of making an engine manifold
FR1327091A (en) * 1962-03-19 1963-05-17 Neyrpic Ateliers Neyret Beylie Improvements in manufacturing processes for piping parts
JPS53116267A (en) * 1977-03-23 1978-10-11 Mitsubishi Plastics Ind Ltd Manufacture of branched pipe joint
EP0321869A1 (en) * 1987-12-21 1989-06-28 Nissan Motor Co., Ltd. Exhaust manifold
DE4113855A1 (en) * 1991-04-27 1992-08-20 Bayerische Motoren Werke Ag Rolled body silencer for vehicle IC engine - makes use of truncated cone shape with flanged ends

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE373874A (en) *
US1830262A (en) * 1928-09-21 1931-11-03 Rockwood Sprinkler Co Massachusetts Method of making pipe fittings
FR761992A (en) * 1933-09-26 1934-03-31 Cie Nat Radiateurs Pipe or tee fitting and its manufacturing process
US2713195A (en) * 1951-03-15 1955-07-19 Solar Aircraft Co Method of making an engine manifold
FR1327091A (en) * 1962-03-19 1963-05-17 Neyrpic Ateliers Neyret Beylie Improvements in manufacturing processes for piping parts
JPS53116267A (en) * 1977-03-23 1978-10-11 Mitsubishi Plastics Ind Ltd Manufacture of branched pipe joint
EP0321869A1 (en) * 1987-12-21 1989-06-28 Nissan Motor Co., Ltd. Exhaust manifold
DE4113855A1 (en) * 1991-04-27 1992-08-20 Bayerische Motoren Werke Ag Rolled body silencer for vehicle IC engine - makes use of truncated cone shape with flanged ends

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 002, no. 152 (C - 031) 20 December 1978 (1978-12-20) *

Also Published As

Publication number Publication date
DE19548224A1 (en) 1997-06-26
EP0780173A2 (en) 1997-06-25

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