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 PDFInfo
- 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- Withdrawn
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. 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.
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)
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)
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 |
-
1995
- 1995-12-22 DE DE1995148224 patent/DE19548224A1/en not_active Withdrawn
-
1996
- 1996-12-04 EP EP96119402A patent/EP0780173A3/en not_active Withdrawn
Patent Citations (8)
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)
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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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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AK | Designated contracting states |
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PUAL | Search report despatched |
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17P | Request for examination filed |
Effective date: 19990323 |
|
17Q | First examination report despatched |
Effective date: 19990608 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: J. EBERSPAECHER GMBH & CO. KG |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20040701 |