WO2003031091A1 - Verfahren zur herstellung eines abzweigrohres - Google Patents
Verfahren zur herstellung eines abzweigrohres Download PDFInfo
- Publication number
- WO2003031091A1 WO2003031091A1 PCT/EP2002/010409 EP0210409W WO03031091A1 WO 2003031091 A1 WO2003031091 A1 WO 2003031091A1 EP 0210409 W EP0210409 W EP 0210409W WO 03031091 A1 WO03031091 A1 WO 03031091A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- shell part
- joining flanges
- shell element
- main curvature
- longitudinal axis
- Prior art date
Links
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.
- Branch pipes are commonly made from deep-drawn half-shells welded together, in one piece from cast iron or by means of internal high-pressure forming from a straight or curved pipe.
- the first production method requires an increased amount of handling in order to join the two half-shells.
- two molds are required, which means that the manufacturing tolerances of the individual parts for the joining process are correspondingly high, which makes this difficult.
- the cast iron version is considerably lighter in terms of handling, but on the one hand a cast iron branch pipe is relatively heavy and on the other hand the design diversity of the branch of the pipe to be produced is considerably limited in terms of wall thickness, since very thin walls cannot be reliably formed with the casting technology , Internal high-pressure forming technology offers more options for this, but there are also limits, especially with regard to the length of the branch. Furthermore, it is - if at all possible - due to the process-specific material thinning out, it is very difficult and expensive to process branches from thin-walled pipes in a reliable manner.
- the invention has for its object to provide a method by means of which the reliable production of a branch pipe with almost any design of the branch is made possible in a simple manner.
- the object is achieved by the features of claim 1. Due to the one-piece design of the branch pipe, handling for production is simplified. The entire process of manufacturing, consisting of pressing, cutting, bending, joining, can be easily automated. Manufacturing tolerances are practically insignificant for reliable manufacturing. Due to the fact that the socket is shaped by means of deep drawing, the design freedom for the socket is almost unlimited in terms of shape and length. Furthermore, the wall thickness of the tube can also be greatly reduced without the process reliability being adversely affected. On the one hand, this is favorable for lightweight construction and, on the other hand, when the branch pipe is used in the exhaust line of a motor vehicle, it is advantageous for the catalytic converter to light up as quickly as possible, since the thin wall has only a low heat capacity and thus removes relatively little heat from the exhaust gas flow.
- the design freedom enables the formation of strongly curved branches, which means that when used, when assembling an exhaust manifold, it can be better adapted to the installation space of the engine compartment.
- the length of the branches can be dimensioned so that a connecting pipe to the inlet flange on the cylinder head is no longer required.
- the joint seam is such that the hot exhaust gas does not directly flow against it, which is accompanied by a considerable increase in the durability of the exhaust manifold. Due to the position of the joint seam, the seam can be interrupted at least when used in the exhaust line, since the gas tightness is not fully present anyway due to the additional exhaust pipes which are connected in the sliding seat with play, which minimizes the manufacturing process times and thus makes the production more cost-effective.
- Fig. 2 is a perspective plan view of a branch pipe bent and joined from the circuit board of Fig. 1 by the method according to the invention.
- FIG. 1 shows an intermediate stage of a method for producing a branch pipe 1.
- a blank or a sheet metal section from a coil is initially used, which is subjected to a deep-drawing process.
- an elongated rectilinear main curvature and two side curvatures are formed from the blank, the latter branching off from one longitudinal side of the main curvature and lying opposite one another with respect to the central longitudinal axis 2 of the main curvature running in the blank material.
- the side curvatures are arranged mirror-symmetrically to one another with regard to the shape of their base line.
- the baseline denotes the course of the opening edge of the side curvatures.
- the shape and dimension of the side curvatures are completely the same - apart from their mirror-symmetrical arrangement - the side curvatures can also be of different depths depending on the wishes of the branch to be produced.
- the blank After the blank has been formed, it is cut in a process-economical manner in the deep-drawing tool by means of a punching tool or outside the deep-drawing tool in a clamping device by means of a cutting laser that can be guided in three dimensions.
- the trimming results on the one hand in a trough-like shell part 3, which arises from the main curvature and is open in the longitudinal direction.
- the shell part 3 is rectangular in plan view. However, it can, for example, in one or both directions Longitudinal extension of the shell part 3 can also be designed as a uniform trapezoid. At the shell part 3 adjoin in the same plane lying half-pipe 4, which result from the side curvatures.
- the half nozzles 4 are open in the direction of extension and are each designed as a half circular cylinder.
- the geometry of the rectilinearly parallel lower edges 5 of the half nozzle 4 can, however, also be completely different. For example, they can be curved or rectilinear converging. In the latter case, the half nozzle 4 has the shape of a half cone.
- the half-nozzles 4 open into the cavity 6 of the shell part 3, which is formed by the curvature.
- sheet metal strips 7 are formed on the shell part 3 and the half-nozzles 4, which are in the same plane as the lower edges 5 of the half-nozzles 4 and the lower edges 8 of the Shell part 3 lying on the outside along the lateral edges 9 of the shell part 3 and the half connector 4.
- the metal strips 7 of the shell part 3 and the half connector 4 are integrally connected to one another, but can also be separated from one another. It is also not an inevitable requirement that the sheet metal strips 7 must be located over the entire surface in the same plane as the lower edges 5 of the half connectors 4 and the lower edges 8 of the shell part 3.
- the sheet metal strip 7 must in any case start from this level for the success of subsequent joining operations, and in the event of deviations from the above-mentioned design, the sheet metal strips 7 lying opposite one another with respect to the central longitudinal axis 2 must be formed in a shape-negative manner with respect to one another.
- the metal strips 7 engage in one another in a form-fitting manner, which thus ensures a better hold for the joining operation and an improved durability of the joining seam.
- the metal strips 7 serve here as joining flanges.
- the shell part 3 is bent in a separate tool via a bending mandrel about a spatial axis 10 parallel to the central longitudinal axis 2, an axis which in one Shell part 3 lies along the central longitudinal axis 2 in the plane penetrating in the normal direction and is spaced apart from the central longitudinal axis 2 (FIG. 2).
- the axis 10 is offset downward from the central longitudinal axis 2 by the radius of the circular cylindrical main tube 11 formed by the bending. The bending takes place until the joint flanges 7 corresponding to one another on both sides 13, 14 of the shell part 3 lie against one another over the entire surface.
- the joining flanges 7 are connected to one another in a last manufacturing step. This can be done by welding, whereby spot welding can be used quickly, easily and inexpensively due to the position of the joining seam 15 and the flatness of the flanges 7.
- the formation of flanges 7 only makes mechanical joining such as clinching possible, which considerably improves the durability of the joining seam 15 and is advantageous for heat-sensitive materials.
- the use of an adhesive technique is conceivable for purposes which are not or only slightly heat-loaded, such as in the sanitary area.
- the sheet metal strips 7 are designed such that the end 16 of the sheet metal strip 7 running along the half connector 4 is retracted with respect to the opening edge 17 of the half connector 4.
- the same also applies to one end 18 of the shell part 3.
- the branch pipe 1 can make unimpeded simple plug connections with further pipes or connections.
- the branch pipe 12 can easily be connected to the inlet flange of the cylinder head. plugged together 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 plug-connected and welded as an inner part to the corresponding connecting pieces of the outer shell.
- the solution according to the invention is otherwise not limited to the formation of a single branch connector 12. With longer shell parts 3, the formation of several side curvatures or. Half connector 4 possible, which then form branch connector 12 after completion of the manufacturing process. These can be of identical or different design with respect to their shape and length, depending on the requirements of the spatial and / or fluidic conditions.
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)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE50202581T DE50202581D1 (de) | 2001-10-06 | 2002-09-17 | Verfahren zur herstellung eines abzweigrohres |
AT02779363T ATE291502T1 (de) | 2001-10-06 | 2002-09-17 | Verfahren zur herstellung eines abzweigrohres |
JP2003534111A JP2005508253A (ja) | 2001-10-06 | 2002-09-17 | 分岐管を製造するための方法 |
EP02779363A EP1434659B1 (de) | 2001-10-06 | 2002-09-17 | Verfahren zur herstellung eines abzweigrohres |
US10/491,663 US20050028366A1 (en) | 2001-10-06 | 2002-09-17 | Method for producing a branch pipe |
KR1020047004735A KR100598228B1 (ko) | 2001-10-06 | 2002-09-17 | 분기관 제작법 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10149381A DE10149381A1 (de) | 2001-10-06 | 2001-10-06 | Verfahren zur Herstellung eines Abzweigrohres |
DE10149381.9 | 2001-10-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003031091A1 true WO2003031091A1 (de) | 2003-04-17 |
Family
ID=7701659
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2002/010409 WO2003031091A1 (de) | 2001-10-06 | 2002-09-17 | Verfahren zur herstellung eines abzweigrohres |
Country Status (8)
Country | Link |
---|---|
US (1) | US20050028366A1 (de) |
EP (1) | EP1434659B1 (de) |
JP (1) | JP2005508253A (de) |
KR (1) | KR100598228B1 (de) |
AT (1) | ATE291502T1 (de) |
DE (2) | DE10149381A1 (de) |
ES (1) | ES2239256T3 (de) |
WO (1) | WO2003031091A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3981960A1 (de) * | 2020-10-05 | 2022-04-13 | Friedrich Boysen GmbH & Co. KG | Gehäuse für abgaseinrichtung |
Families Citing this family (20)
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 |
ES2795351T3 (es) | 2013-07-17 | 2020-11-23 | Victaulic Co Of America | Acoplamientos que tienen nervaduras rígidas arqueadas |
DE102014110616A1 (de) | 2014-07-28 | 2016-01-28 | Tenneco Gmbh | Ventilgehäuse mit Ventilklappe |
DE102015116018A1 (de) | 2015-09-22 | 2017-03-23 | Tenneco Gmbh | Krümmer |
PL3397884T3 (pl) | 2015-12-28 | 2020-11-16 | Victaulic Company | Złączka adapterowa |
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 |
US10605394B2 (en) | 2016-05-16 | 2020-03-31 | Victaulic Company | Fitting having tabbed retainer and observation apertures |
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 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2262627A (en) * | 1938-11-15 | 1941-11-11 | Budd Edward G Mfg Co | Manifold |
EP0780173A2 (de) * | 1995-12-22 | 1997-06-25 | J. Eberspächer GmbH & Co. | Verfahren zur Herstellung einen Rohrteiles, insbesondere einer Krümmer-Rohrabzweigung einer Kraftfahrzeug-Abgasanlage, sowie eine hiernach gefertigte Krümmer-Rohrabzweigung |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE101511C (de) * | ||||
US2157274A (en) * | 1937-04-27 | 1939-05-09 | Gen Fire Extinguisher Co | Welding t and method of making same |
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 (de) * | 1989-06-12 | 1990-07-05 | Mannesmann Ag, 4000 Duesseldorf, De | |
US6694616B1 (en) * | 1999-04-13 | 2004-02-24 | Mckenna Joseph | Method of forming T-connectors |
-
2001
- 2001-10-06 DE DE10149381A patent/DE10149381A1/de not_active Withdrawn
-
2002
- 2002-09-17 DE DE50202581T patent/DE50202581D1/de not_active Expired - Lifetime
- 2002-09-17 WO PCT/EP2002/010409 patent/WO2003031091A1/de active IP Right Grant
- 2002-09-17 AT AT02779363T patent/ATE291502T1/de not_active IP Right Cessation
- 2002-09-17 EP EP02779363A patent/EP1434659B1/de not_active Expired - Lifetime
- 2002-09-17 JP JP2003534111A patent/JP2005508253A/ja not_active Abandoned
- 2002-09-17 ES ES02779363T patent/ES2239256T3/es not_active Expired - Lifetime
- 2002-09-17 US US10/491,663 patent/US20050028366A1/en not_active Abandoned
- 2002-09-17 KR KR1020047004735A patent/KR100598228B1/ko not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2262627A (en) * | 1938-11-15 | 1941-11-11 | Budd Edward G Mfg Co | Manifold |
EP0780173A2 (de) * | 1995-12-22 | 1997-06-25 | J. Eberspächer GmbH & Co. | Verfahren zur Herstellung einen Rohrteiles, insbesondere einer Krümmer-Rohrabzweigung einer Kraftfahrzeug-Abgasanlage, sowie eine hiernach gefertigte Krümmer-Rohrabzweigung |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3981960A1 (de) * | 2020-10-05 | 2022-04-13 | Friedrich Boysen GmbH & Co. KG | Gehäuse für abgaseinrichtung |
Also Published As
Publication number | Publication date |
---|---|
US20050028366A1 (en) | 2005-02-10 |
ES2239256T3 (es) | 2005-09-16 |
EP1434659A1 (de) | 2004-07-07 |
KR20040048915A (ko) | 2004-06-10 |
KR100598228B1 (ko) | 2006-07-07 |
EP1434659B1 (de) | 2005-03-23 |
DE50202581D1 (de) | 2005-04-28 |
ATE291502T1 (de) | 2005-04-15 |
DE10149381A1 (de) | 2003-05-08 |
JP2005508253A (ja) | 2005-03-31 |
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