DE102014102254A1 - Method of manufacturing a fuel tank and fuel tank - Google Patents
Method of manufacturing a fuel tank and fuel tank Download PDFInfo
- Publication number
- DE102014102254A1 DE102014102254A1 DE102014102254.8A DE102014102254A DE102014102254A1 DE 102014102254 A1 DE102014102254 A1 DE 102014102254A1 DE 102014102254 A DE102014102254 A DE 102014102254A DE 102014102254 A1 DE102014102254 A1 DE 102014102254A1
- Authority
- DE
- Germany
- Prior art keywords
- fuel tank
- parts
- superplastic forming
- sheet
- starting
- 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.)
- Pending
Links
Classifications
-
- 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
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/18—Making hollow objects characterised by the use of the objects vessels, e.g. tubs, vats, tanks, sinks, or the like
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- 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
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/053—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure characterised by the material of the blanks
- B21D26/055—Blanks having super-plastic properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K2015/03032—Manufacturing of fuel tanks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K2015/03328—Arrangements or special measures related to fuel tanks or fuel handling
- B60K2015/03453—Arrangements or special measures related to fuel tanks or fuel handling for fixing or mounting parts of the fuel tank together
- B60K2015/0346—Arrangements or special measures related to fuel tanks or fuel handling for fixing or mounting parts of the fuel tank together by welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K2015/03486—Fuel tanks characterised by the materials the tank or parts thereof are essentially made from
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
Verfahren zum Herstellen eines Kraftstoffbehälters für einen Kraftstofftank eines Kraftfahrzeugs, der aus mehreren Kraftstoffbehälterteilen zusammengesetzt ist, wobei mindestens zwei blechartige Ausgangsteile aus einer Aluminiumlegierung bereitgestellt werden; wobei anschließend mindestens zwei Ausgangsteile durch superplastisches Umformen in jeweils ein Kraftstoffbehälterteil mit definierter dreidimensionaler Form umgeformt werden; und wobei anschließend mehrere Kraftstoffbehälterteile miteinander verbunden werden.A method of manufacturing a fuel tank for a fuel tank of a motor vehicle composed of a plurality of fuel tank parts, wherein at least two sheet-like output parts are provided with an aluminum alloy; wherein subsequently at least two output parts are converted by superplastic forming into a respective fuel tank part with a defined three-dimensional shape; and wherein subsequently a plurality of fuel tank parts are connected together.
Description
Die Erfindung betrifft ein Verfahren zum Herstellen eines Kraftstoffbehälters und einen Kraftstoffbehälter. The invention relates to a method for producing a fuel tank and a fuel tank.
Kraftstoffbehälter für Kraftfahrzeuge können nach dem Stand der Technik aus einem metallischen Werkstoff oder aus Kunststoff gefertigt sein. Fuel tanks for motor vehicles can be made of a metallic material or of plastic according to the prior art.
Metallische Kraftstoffbehälter sind aus mehreren Kraftstoffbehälterteilen zusammengesetzt. Die Kraftstoffbehälterteile für einen metallischen Kraftstoffbehälter werden durch Umformen aus blechartigen Ausgangsteilen gefertigt. Dabei kommt typischerweise eine Kaltumformung der Ausgangsteile zum Einsatz. Metallic fuel tanks are composed of a plurality of fuel tank parts. The fuel tank parts for a metallic fuel tank are manufactured by forming from sheet-like starting parts. In this case, a cold forming of the output parts is typically used.
Aufgabe der Erfindung ist es, ein neuartiges Verfahren zum Herstellen eines Kraftstoffbehälters sowie einen neuartigen Kraftstoffbehälter zu schaffen. The object of the invention is to provide a novel method for producing a fuel tank and a novel fuel tank.
Diese Aufgabe wird durch ein Verfahren nach Anspruch 1 gelöst. Erfindungsgemäß werden mindestens zwei blechartige Ausgangsteile aus einer Aluminiumlegierung bereitgestellt; anschließend werden mindestens zwei Ausgangsteile durch superplastisches Umformen in jeweils ein Kraftstoffbehälterteil mit definierter dreidimensionaler Form umgeformt; anschließend werden mehrere Kraftstoffbehälterteile miteinander verbunden. This object is achieved by a method according to claim 1. According to the invention, at least two sheet-like starting parts made of an aluminum alloy are provided; then at least two starting parts are reshaped by superplastic forming in each case a fuel tank part with a defined three-dimensional shape; then several fuel tank parts are connected together.
Mit der hier vorliegenden Erfindung wird erstmals vorgeschlagen, Kraftstoffbehälterteile für einen metallischen Kraftstoffbehälter durch superplastisches Umformen eines blechartigen Ausgangsteils aus einer Aluminiumlegierung bereitzustellen. Hierdurch ist es möglich, den Kraftstoffbehälterteilen eine komplexe dreidimensionale Form zu geben. Hierdurch ist es letztendlich möglich, einen Kraftstofftank optimal an einen zur Verfügung stehenden Bauraum des Kraftfahrzeugs anzupassen. With the present invention, it is proposed for the first time to provide fuel tank parts for a metallic fuel tank by superplastic forming of a sheet-like starting part made of an aluminum alloy. This makes it possible to give the fuel tank parts a complex three-dimensional shape. As a result, it is ultimately possible to optimally adapt a fuel tank to an available installation space of the motor vehicle.
Nach einer vorteilhaften Weiterbildung der Erfindung werden als blechartige Ausgangsteile, welche durch superplastisches Umformen in Kraftstoffbehälterteile umgeformt werden, Ausgangsteile aus einer AlMg4,5Mn0,7-Legierung mit einer mittleren Korngröße von mehr als 10 µm und maximal 12 µm, vorzugsweise von mehr als 10 µm und weniger als 12 µm, und/oder mit einer Wanddicke von mehr als 2,5 mm und maximal 2,8 mm, vorzugsweise von mehr als 2,6 mm und maximal 2,7 mm, bereitgestellt. According to an advantageous development of the invention are as sheet-like starting parts, which are formed by superplastic forming in fuel tank parts, starting parts of an AlMg4.5Mn0.7 alloy with a mean grain size of more than 10 microns and not more than 12 .mu.m, preferably more than 10 microns and less than 12 microns, and / or with a wall thickness of more than 2.5 mm and a maximum of 2.8 mm, preferably more than 2.6 mm and a maximum of 2.7 mm.
Die Verwendung solcher blechartigen Ausgangsteile eignet sich besonders vorteilhaft zur Herstellung metallischer Kraftstoffbehälterteile für einen Kraftstoffbehälter durch superplastisches Umformen unter Bereitstellung der gewünschten dreidimensionalen Form unter Einhaltung einer minimalen Wanddicke sowie gewünschten Zugfestigkeit für das Kraftstoffbehälterteil. The use of such sheet-like starting parts is particularly advantageous for producing metallic fuel tank parts for a fuel tank by superplastic forming to provide the desired three-dimensional shape while maintaining a minimum wall thickness and desired tensile strength for the fuel tank part.
Der erfindungsgemäße Kraftstoffbehälter ist in Anspruch 7 definiert. The fuel tank according to the invention is defined in claim 7.
Weitere Merkmale und Merkmalskombinationen ergeben sich aus der Beschreibung. Konkrete Ausführungsbeispiele der Erfindung sind in der nachfolgenden Beschreibung näher erläutert. Further features and combinations of features emerge from the description. Concrete embodiments of the invention are explained in more detail in the following description.
Die Erfindung betrifft ein Verfahren zum Herstellen eines metallischen Kraftstoffbehälters für einen Kraftstofftank. The invention relates to a method for producing a metallic fuel tank for a fuel tank.
Zum Herstellen des metallischen Kraftstoffbehälters werden mindestens zwei blechartige Ausgangsteile aus einer Aluminiumlegierung bereitgestellt. For producing the metallic fuel tank, at least two sheet-like outlets made of an aluminum alloy are provided.
Anschließend werden mindestens zwei dieser Ausgangsteile durch superplastisches Umformen in jeweils ein Kraftstoffbehälterteil mit definierter dreidimensionaler Form umgeformt. Subsequently, at least two of these starting parts are reshaped by superplastic forming in each case a fuel tank part with a defined three-dimensional shape.
Anschließend werden mehrere Kraftstoffbehälterteile, von denen mindestens zwei durch superplastisches Umformen hergestellt wurden, miteinander verbunden. Subsequently, a plurality of fuel tank parts, at least two of which were made by superplastic forming, connected together.
Vorzugsweise werden zwei Kraftstoffbehälterhalbschalen durch superplastisches Umformen jeweils eines blechartigen Ausgangsteils, welches aus einer Aluminiumlegierung besteht, hergestellt. Preferably, two fuel tank half-shells are produced by superplastic forming each of a sheet-like starting part, which consists of an aluminum alloy.
Vorzugsweise werden die Kraftstoffbehälterteile, nämlich die Kraftstoffbehälterhalbschalen, durch Verschweißen miteinander verbunden. Preferably, the fuel tank parts, namely the fuel tank half shells, are joined together by welding.
Als blechartige Ausgangsteile, welche einem superplastischen Umformen unterzogen werden, werden Ausgangsteile aus einer AlMg4,5Mn0,7-Legierung bereitgestellt, welche eine mittlere Korngröße von mehr als 10 µm und maximal 12 µm, vorzugsweise eine mittlere Korngröße von mehr als 10 µm und weniger als 12 µm, aufweisen. Diese blechartigen Ausgangsteile verfügen darüber hinaus über eine Wandstärke von mehr als 2,5 mm und maximal 2,8 mm, insbesondere über eine Wanddicke von mehr als 2,6 mm und maximal 2,7 mm. As sheet-like starting parts, which are subjected to a superplastic forming, starting parts of an AlMg4.5Mn0.7 alloy are provided, which have a mean grain size of more than 10 microns and a maximum of 12 microns, preferably a mean grain size of more than 10 microns and less than 12 microns, have. These sheet-like output parts also have a wall thickness of more than 2.5 mm and a maximum of 2.8 mm, in particular over a wall thickness of more than 2.6 mm and a maximum of 2.7 mm.
Dann, wenn ein derartiges blechartiges Ausgangsteil mit der oben definierten mittleren Korngröße sowie der oben definierten Wanddicke aus der oben angegebenen Aluminiumlegierung einem superplastischem Umformen unterzogen wird, kann hieraus ein Kraftstoffbehälterteil bereitgestellt werden, welches abschnittsweise eine minimale Wandstärke von 1,2 mm und eine durchschnittliche Wandstärke zwischen 2,0 mm und 2,4 mm, insbesondere eine durchschnittliche Wandstärke zwischen 1,2 mm und 2,3 mm, aufweist. Then, if such a sheet-like starting part having the above-defined mean grain size and the above-defined wall thickness of the above-mentioned aluminum alloy is subjected to a superplastic forming, from this a fuel tank part can be provided, which sections a minimum wall thickness of 1.2 mm and an average wall thickness between 2.0 mm and 2.4 mm, in particular an average wall thickness between 1.2 mm and 2.3 mm.
Ein derartiges Kraftstoffbehälterteil verfügt dann über eine Zugfestigkeit von mindestens 140 MPa. Solche Kraftstoffbehälterteile sind zur Ausbildung eines Kraftstoffbehälters besonders geeignet. Such a fuel tank part then has a tensile strength of at least 140 MPa. Such fuel tank parts are particularly suitable for forming a fuel tank.
Es liegt demnach im Sinne der hier vorliegenden Erfindung, einen Kraftstoffbehälter aus einem metallischen Werkstoff zu fertigen, wobei mindestens zwei Kraftstoffbehälterteile des Kraftstoffbehälters durch superplastisches Umformen jeweils eines blechartigen Ausgangsteils aus einer Aluminiumlegierung bereitgestellt sind. It is therefore within the meaning of the present invention to produce a fuel tank made of a metallic material, wherein at least two fuel tank parts of the fuel tank are provided by superplastic forming each of a sheet-like starting part of an aluminum alloy.
Jedes blechartige Ausgangsteil, welches einem superplastischen Umformen unterzogen wird, besteht aus einer AlMg4,5Mn0,7-Legierung und verfügt über eine definierte mittlere Korngröße und eine definierte Wanddicke, wobei die mittlere Korngröße vorzugsweise mehr als 10 µm und weniger als 12 µm beträgt, und wobei die Wanddicke vorzugsweise mehr als 2,6 mm und maximal 2,7 mm beträgt. Hierdurch ist es möglich, einen Kraftstoffbehälter bzw. Kraftstoffbehälterteile mit komplexer dreidimensionaler Kontur unter geringer Wandstärke und demnach bei geringem Gewicht bei ausreichend hoher Zugfestigkeit herzustellen. Each sheet-like starting part, which is subjected to a superplastic forming, consists of an AlMg4.5Mn0.7 alloy and has a defined mean grain size and a defined wall thickness, wherein the average grain size is preferably more than 10 microns and less than 12 microns, and wherein the wall thickness is preferably more than 2.6 mm and a maximum of 2.7 mm. This makes it possible to produce a fuel tank or fuel tank parts with complex three-dimensional contour with low wall thickness and therefore with low weight at sufficiently high tensile strength.
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE102014102254.8A DE102014102254A1 (en) | 2014-02-21 | 2014-02-21 | Method of manufacturing a fuel tank and fuel tank |
Applications Claiming Priority (1)
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DE102014102254.8A DE102014102254A1 (en) | 2014-02-21 | 2014-02-21 | Method of manufacturing a fuel tank and fuel tank |
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DE102014102254A1 true DE102014102254A1 (en) | 2015-08-27 |
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DE102014102254.8A Pending DE102014102254A1 (en) | 2014-02-21 | 2014-02-21 | Method of manufacturing a fuel tank and fuel tank |
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3045417A1 (en) * | 1980-12-02 | 1982-08-19 | Goodyear Aerospace Corp., 44316 Akron, Ohio | Fabric reinforced composite for making container - and nonionic surfactant as stabilisers |
EP0297035A1 (en) * | 1987-06-23 | 1988-12-28 | Alusuisse-Lonza Services Ag | Aluminium alloy for superplastic deformation |
DE4020850C2 (en) * | 1990-06-29 | 1992-06-17 | Messerschmitt-Boelkow-Blohm Gmbh, 8012 Ottobrunn, De | |
CH682081A5 (en) * | 1990-11-12 | 1993-07-15 | Alusuisse Lonza Services Ag | |
DE69211069T2 (en) * | 1991-07-29 | 1996-10-02 | Rolls Royce & Ass | Compressed gas tank |
DE19531035C2 (en) * | 1995-08-23 | 1998-10-15 | Alcan Gmbh | Process for the production of hollow bodies made of aluminum or aluminum alloys |
DE69528432T2 (en) * | 1994-11-02 | 2003-06-12 | Akihisa Inoue | High-strength and highly rigid aluminum-based alloy and its manufacturing process |
-
2014
- 2014-02-21 DE DE102014102254.8A patent/DE102014102254A1/en active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3045417A1 (en) * | 1980-12-02 | 1982-08-19 | Goodyear Aerospace Corp., 44316 Akron, Ohio | Fabric reinforced composite for making container - and nonionic surfactant as stabilisers |
EP0297035A1 (en) * | 1987-06-23 | 1988-12-28 | Alusuisse-Lonza Services Ag | Aluminium alloy for superplastic deformation |
DE4020850C2 (en) * | 1990-06-29 | 1992-06-17 | Messerschmitt-Boelkow-Blohm Gmbh, 8012 Ottobrunn, De | |
CH682081A5 (en) * | 1990-11-12 | 1993-07-15 | Alusuisse Lonza Services Ag | |
EP0486426B1 (en) * | 1990-11-12 | 1995-08-02 | Alusuisse-Lonza Services AG | Superplastic fabrication of work pieces |
DE69211069T2 (en) * | 1991-07-29 | 1996-10-02 | Rolls Royce & Ass | Compressed gas tank |
DE69528432T2 (en) * | 1994-11-02 | 2003-06-12 | Akihisa Inoue | High-strength and highly rigid aluminum-based alloy and its manufacturing process |
DE19531035C2 (en) * | 1995-08-23 | 1998-10-15 | Alcan Gmbh | Process for the production of hollow bodies made of aluminum or aluminum alloys |
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R163 | Identified publications notified | ||
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