EP1955788B1 - Roll profiled component and procedure for its manufacture - Google Patents
Roll profiled component and procedure for its manufacture Download PDFInfo
- Publication number
- EP1955788B1 EP1955788B1 EP20080002028 EP08002028A EP1955788B1 EP 1955788 B1 EP1955788 B1 EP 1955788B1 EP 20080002028 EP20080002028 EP 20080002028 EP 08002028 A EP08002028 A EP 08002028A EP 1955788 B1 EP1955788 B1 EP 1955788B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- individual parts
- roll
- component
- longitudinal axis
- height
- 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.)
- Expired - Fee Related
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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
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
- B21D5/08—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles making use of forming-rollers
-
- 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
Definitions
- the invention relates to a roll-profiled component, in particular for a motor vehicle, and to a method for producing such a component.
- the roll-profiled component is in particular a structural part or body part of a motor vehicle.
- a roll-profiled component according to the preamble of claim 1 is known from DE 197 20 109 A1 known.
- the object of the invention is to propose a roll-profiled component which is variable in height, and to provide a method for its production.
- a roll-profiled component having the features of claim 1.
- the roll-profiled component which is in particular a structural part or body part of a motor vehicle, is made of two individual parts which have a variable height along their longitudinal axis and which are interconnected. It is possible to make the component from more than two parts.
- the connection of the individual parts can be done by welding, in particular by laser welding.
- one or both items are cropped at its inner edge.
- the items are connected to each other at the optionally trimmed inner edges.
- the items have a horizontal portion and a vertical portion. It is possible that the items have several horizontal sections. Instead or in addition, the items may have multiple vertical sections.
- a horizontal section is understood to mean a section that extends in the direction of the width of the component or part.
- a vertical section is understood to mean a section that extends in the direction of the height of the item or of the component. It is advantageous if the item has a Z-profile with a vertical and two horizontal sections. It may also be advantageous that the item has an L-profile with a horizontal and a vertical portion. Other profile shapes are possible.
- a further advantageous development is characterized in that the height of the individual parts or the vertical portions of the items in the middle is greater than at the ends. This is particularly advantageous when the component is subjected to bending. Preferably, the component or item in the middle of the greatest height.
- the individual parts have a variable width along their longitudinal axis.
- the problem underlying the invention is further achieved by a method having the features of claim 5.
- the method for producing a component by roll profiling in particular a component according to the invention, is characterized in that two individual parts with a variable over its longitudinal axis Height can be produced. It can also be made more than two items. The items are manufactured by roll profiling.
- One or both or all parts are trimmed at their inner edge.
- the inner edges are preferably trimmed in a straight line. However, it is also possible not to cut the inner edges straight.
- the individual parts are connected to each other at their inner edges.
- the connection is preferably by welding, in particular by laser welding.
- An advantageous development is characterized in that the items are made with a variable over its longitudinal axis width.
- a first item 1 and a second item 2 are shown, both of which have been made by roll profiling from a rectangular, flat sheet metal strip.
- the first item 1 has a Z-shaped cross-section, the a lower horizontal portion 3, a vertical portion 4 and an upper horizontal portion 5 consists.
- the lower horizontal section 3 has the same width over the longitudinal axis of the first item 1.
- the vertical section 4 has a variable height over the longitudinal axis of the first item 1.
- the height of the vertical portion 4 is lowest at the ends of the first item 1. It climbs towards the middle and reaches the highest altitude in the middle.
- the height of the vertical section 4 follows a substantially S-shaped course. It is larger in the middle than at the ends.
- This embodiment is particularly advantageous when the component is subjected to bending, since the bending moment in the middle of the component is greatest and there the greater height of the vertical portions of the bending moment opposes the greatest resistance.
- the inner edge 6 at the end of the upper horizontal portion 5 does not form a straight line.
- more material for the vertical portion 4 is required in the middle of the first item 1, so that there is less material available for the upper horizontal section 5.
- the width of the upper horizontal portion 5 is thus lower in the middle of the first item 1 than at the ends.
- the second item 2 is symmetrical to the first item 1 and includes the corresponding components 3 ', 4', 5 'and 6'.
- the comments on the first item 1 apply in a corresponding manner for the second item. 2
- the items 1, 2 are trimmed at their inner edges 6, 6 '. How out Fig. 2 it can be seen the items 1, 2 'at their inner edges 6, 6' rectilinear, so that rectilinear, parallel to the longitudinal axis of the items 1, 2 extending cutting edges 7, 7 'are formed.
- the in Fig. 3 shown component 8 is formed, which has a height variable over its longitudinal axis.
- the component 8 has over its longitudinal axis everywhere the same width, ie everywhere the same distance between the vertical sections 4, 4 '. However, it could also have a variable width along its longitudinal axis (not shown in the drawing).
- the cross sections of the component 8 form as shown Fig. 4 can be seen, a hat profile with lower horizontal sections 3, 3 ', vertical sections 4, 4' and upper horizontal sections 5, 5 ', which along the inner cut edges 7, 7' are welded together.
- section AA whose height is less than in the middle, namely in section BB.
- the invention makes it possible to vary the cross section in a roll-profiled component, specifically by forming two or more individual parts or segments which have a variable cross-section in the longitudinal axis.
- the items 1, 2 can be rollprofiled on a system.
- the items 1, 2 are then trimmed. They can be joined together to form a discontinuously laser-bonded component.
- the component can be manufactured by the following process steps: (1) Conventional rolling; (2) variation of both individual parts or segments, in particular in height; (3) trimming online; (4) join and weld, in particular laser welding; (5) cutting off the ends.
- the individual parts can be produced as two rolling profiles in a scaffold.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Description
Die Erfindung betrifft ein rollprofiliertes Bauteil, inbesondere für ein Kraftfahrzeug, und ein Verfahren zur Herstellung eines derartigen Bauteils. Das rollprofilierte Bauteil ist insbesondere ein Strukturteil oder Karosserieteil eines Kraftfahrzeugs.The invention relates to a roll-profiled component, in particular for a motor vehicle, and to a method for producing such a component. The roll-profiled component is in particular a structural part or body part of a motor vehicle.
Bauteile, die durch Rollprofilieren oder Walzprofilieren hergestellt werden sind bereits bekannt.Components that are produced by roll profiling or roll forming are already known.
Aus der
Aus der
Ein rollprofiliertes Bauteil nach dem Oberbegriff des Anspruchs 1 ist aus der
Aufgabe der Erfindung ist es, ein rollprofiliertes Bauteil vorzuschlagen, das in seiner Höhe variabel ist, und ein Verfahren zu dessen Herstellung anzugeben.The object of the invention is to propose a roll-profiled component which is variable in height, and to provide a method for its production.
Erfindungsgemäß wir diese Aufgabe durch ein rollprofiliertes Bauteil mit den Merkmalen des Anspruchs 1 gelöst. Das rollprofilierte Bauteil, bei dem es sich insbesondere um ein Strukturteil oder Karosserieteil eines Kraftfahrzeugs handelt, ist aus zwei Einzelteilen hergestellt, die eine über ihre Längsachse veränderliche Höhe aufweisen und die miteinander verbunden sind. Es ist möglich, das Bauteil aus mehr als zwei Einzelteilen herzustellen. Die Verbindung der Einzelteile kann durch Schweißen, insbesondere durch Laserschweißen, erfolgen.According to the invention, we have achieved this object by a roll-profiled component having the features of claim 1. The roll-profiled component, which is in particular a structural part or body part of a motor vehicle, is made of two individual parts which have a variable height along their longitudinal axis and which are interconnected. It is possible to make the component from more than two parts. The connection of the individual parts can be done by welding, in particular by laser welding.
Erfindungsgemäß sind eines oder beide Einzelteile an ihrer Innenkante beschnitten. Die Einzelteile sind an den gegebenenfalls beschnittenen Innenkanten miteinander verbunden.According to the invention one or both items are cropped at its inner edge. The items are connected to each other at the optionally trimmed inner edges.
Vorteilhafte Weiterbildungen sind in den Unteransprüchen beschrieben.Advantageous developments are described in the subclaims.
Eine vorteilhafte Weiterbildung ist dadurch gekennzeichnet, daß die Einzelteile einen horizontalen Abschnitt und einen vertikalen Abschnitt aufweisen. Es ist möglich, daß die Einzelteile mehrere horizontale Abschnitte aufweisen. Stattdessen oder zusätzlich können die Einzelteile mehrere vertikale Abschnitte aufweisen. Unter einem horizontalen Abschnitt ist ein Abschnitt zu verstehen, der sich in Richtung der Breite des Einzelteils bzw. Bauteils erstreckt. Unter einem vertikalen Abschnitt ist ein Abschnitt zu verstehen, der sich in der Richtung der Höhe des Einzelteils bzw. des Bauteils erstreckt. Vorteilhaft ist es, wenn das Einzelteil ein Z-Profil mit einem vertikalen und zwei horizontalen Abschnitten aufweist. Es kann ferner vorteilhaft sein, daß das Einzelteil ein L-Profil mit einem horizontalen und einem vertikalen Abschnitt aufweist. Auch andere Profilformen sind möglich.An advantageous development is characterized in that the items have a horizontal portion and a vertical portion. It is possible that the items have several horizontal sections. Instead or in addition, the items may have multiple vertical sections. A horizontal section is understood to mean a section that extends in the direction of the width of the component or part. A vertical section is understood to mean a section that extends in the direction of the height of the item or of the component. It is advantageous if the item has a Z-profile with a vertical and two horizontal sections. It may also be advantageous that the item has an L-profile with a horizontal and a vertical portion. Other profile shapes are possible.
Eine weitere vorteilhafte Weiterbildung ist dadurch gekennzeichnet, daß die Höhe der Einzelteile bzw. der vertikalen Abschnitte der Einzelteile in der Mitte größer ist als an den Enden. Dies ist insbesondere dann von Vorteil, wenn das Bauteil auf Biegung beansprucht wird. Vorzugsweise weist das Bauteil bzw. Einzelteil in der Mitte die größte Höhe auf.A further advantageous development is characterized in that the height of the individual parts or the vertical portions of the items in the middle is greater than at the ends. This is particularly advantageous when the component is subjected to bending. Preferably, the component or item in the middle of the greatest height.
In bestimmten Fällen ist es vorteilhaft, wenn die Einzelteile eine über ihre Längsachse veränderliche Breite aufweisen.In certain cases, it is advantageous if the individual parts have a variable width along their longitudinal axis.
Die der Erfindung zugrundeliegende Aufgabe wird ferner durch ein Verfahren mit den Merkmalen des Anspruchs 5 gelöst. Das Verfahren zur Herstellung eines Bauteils mittels Rollprofilieren, insbesondere eines erfindungsgemäßen Bauteils, ist dadurch gekennzeichnet, daß zwei Einzelteile mit einer über ihre Längsachse veränderlichen Höhe hergestellt werden. Es können auch mehr als zwei Einzelteile hergestellt werden. Die Einzelteile werden durch Rollprofilieren hergestellt.The problem underlying the invention is further achieved by a method having the features of
Eines oder beide oder alle Einzelteile werden an ihrer Innenkante beschnitten. Dadurch, daß die Einzelteile eine über ihre Längsachse veränderliche Höhe aufweisen, ergeben sich im Allgemeinen nicht geradlinig verlaufende Innenkanten. Die Innenkanten werden vorzugsweise geradlinig beschnitten. Es ist allerdings auch möglich, die Innenkanten nicht geradlinig zu beschneiden.One or both or all parts are trimmed at their inner edge. The fact that the items have a variable height along its longitudinal axis, resulting in generally not rectilinear inner edges. The inner edges are preferably trimmed in a straight line. However, it is also possible not to cut the inner edges straight.
Die Einzelteile werden an ihren Innenkanten miteinander verbunden. Die Verbindung erfolgt vorzugsweise durch Schweißen, insbesondere durch Laserschweißen.The individual parts are connected to each other at their inner edges. The connection is preferably by welding, in particular by laser welding.
Eine vorteilhafte Weiterbildung ist dadurch gekennzeichnet, daß die Einzelteile mit einer über ihre Längsachse veränderlichen Breite hergestellt werden.An advantageous development is characterized in that the items are made with a variable over its longitudinal axis width.
Ein Ausführungsbeispiel der Erfindung wird nachstehend anhand der beigefügten Zeichnung im einzelnen erläutert. In der Zeichnung zeigt
- Fig. 1
- zwei Einzelteile mit über ihre Längsachse veränderlichen Höhen in einer perspektivischen Darstellung,
- Fig. 2
- die Einzelteile gemäß
Fig. 1 mit beschnittenen Innenkanten, - Fig. 3
- die Einzelteile gemäß
Fig. 2 im miteinander verbundenen Zustand und - Fig. 4
- Querschnitte längs der Linien A-A und B-B in
Fig. 3 .
- Fig. 1
- two individual parts with variable height over their longitudinal axis in a perspective view,
- Fig. 2
- the items according to
Fig. 1 with trimmed inside edges, - Fig. 3
- the items according to
Fig. 2 in the interconnected state and - Fig. 4
- Cross sections along the lines AA and BB in
Fig. 3 ,
In
Diese Ausgestaltung ist insbesondere dann von Vorteil, wenn das Bauteil auf Biegung beansprucht wird, da das Biegemoment in der Mitte des Bauteils am größten ist und dort die größere Höhe der vertikalen Abschnitte dem Biegemoment den größten Widerstand entgegensetzt.This embodiment is particularly advantageous when the component is subjected to bending, since the bending moment in the middle of the component is greatest and there the greater height of the vertical portions of the bending moment opposes the greatest resistance.
Da die Höhe des vertikalen Abschnitts 4 des ersten Einzelteils 1 über die Längsachse des Bauteils veränderlich ist, bildet die Innenkante 6 am Ende des oberen horizontalen Abschnitts 5 keine gerade Linie. Im Ausführungsbeispiel wird in der Mitte des ersten Einzelteils 1 mehr Material für den vertikalen Abschnitt 4 benötigt, so daß dort für den oberen horizontalen Abschnitt 5 weniger Material zur Verfügung steht. Die Breite des oberen horizontalen Abschnitts 5 ist also in der Mitte des ersten Einzelteils 1 geringer als an den Enden.Since the height of the
Das zweite Einzelteil 2 ist zum ersten Einzelteil 1 symmetrisch und umfaßt die entsprechenden Bestandteile 3', 4', 5' und 6'. Die Ausführungen zum ersten Einzelteil 1 gelten in entsprechender Weise für das zweite Einzelteil 2.The
Die Einzelteile 1, 2 werden an ihren Innenkanten 6, 6' beschnitten. Wie aus
Anschließend werden die Einzelteile 1, 2 längs der Schnittkanten 7, 7' miteinander verbunden, nämlich verschweißt, insbesondere laserverschweißt. Hierdurch wird das in
Die Querschnitte des Bauteils 8 bilden, wie aus
Durch die Erfindung wird eine Variation des Querschnitts bei einem rollprofilierten Bauteil ermöglichst, und zwar durch die Ausbildung zweier oder mehrerer Einzelteile bzw. Segmente, die in der Längsachse einen variablen Querschnitt aufweisen. Die Einzelteile 1, 2 können auf einer Anlage rollprofiliert werden. Die Einzelteile 1, 2 werden anschließend beschnitten. Sie können zu einem diskontinuierlich lasergefügten Bauteil zusammengefügt werden. Durch die Erfindung können alle Vorteile erreicht werden, die das Verfahren des Rollformens gegenüber dem Verfahren des Pressens mit sich bringen, insbesondere niedrige Werkzeugkosten, hohe Restplastifizität und Toleranzen. Der Beschnitt der Innenkanten 6, 6' kann online erfolgen.The invention makes it possible to vary the cross section in a roll-profiled component, specifically by forming two or more individual parts or segments which have a variable cross-section in the longitudinal axis. The
Das Bauteil kann mit folgenden Verfahrensschritten hergestellt werden: (1) Konventionelles Walzen; (2) Variation beider Einzelteile bzw. Segmente, insbesondere in der Höhe; (3) Beschnitt online; (4) fügen und schweißen, insbesondere Laserschweißen; (5) Abschneiden der Enden.The component can be manufactured by the following process steps: (1) Conventional rolling; (2) variation of both individual parts or segments, in particular in height; (3) trimming online; (4) join and weld, in particular laser welding; (5) cutting off the ends.
Die Einzelteile können als zwei Rollprofile in einem Gerüst hergestellt werden.The individual parts can be produced as two rolling profiles in a scaffold.
Claims (6)
- Roll-profiled component, in particular for a motor vehicle, which is produced from two individual parts (1, 2) which have a height variable over their longitudinal axis and are connected to one another, in particular by welding, in particular by laser welding, characterized in that the individual parts (1, 2) are produced by roll-profiling, and in that one or both individual parts (1, 2) is or are trimmed along their inner edge (6, 6'), and in that the two individual parts (1, 2) are connected to one another along their inner edge (6, 6").
- Roll-profiled component according to Claim 1, characterized in that the individual parts (1, 2) have a horizontal portion (3, 3', 5, 5') and a vertical portion (4, 4') .
- Roll-profiled component according to Claim 1 or 2, characterized in that the height of the individual parts (1, 2) or of the vertical portions (4, 4') of the individual parts (1, 2) is greater in the middle than at the ends.
- Roll-profiled component according to one of the preceding claims, characterized in that the individual parts (1, 2) have a width variable over their longitudinal axis.
- Method for the production of a component by means of roll-profiling, in particular of a component according to one of Claims 1 to 4, in which two individual parts (1, 2) are produced by roll-profiling with a height variable over their longitudinal axis and are subsequently connected to one another, in particular by welding, in particular by laser welding, characterized in that one or both individual parts (1, 2) is or are trimmed along their inner edge (6, 6'), and in that the individual parts (1, 2) are connected to one another along their inner edges (6, 6').
- Method according to Claim 5, characterized in that the individual parts (1, 2) are produced with a width variable over their longitudinal axis.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200710005880 DE102007005880B4 (en) | 2007-02-06 | 2007-02-06 | Roll profiled component and method for its production |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1955788A2 EP1955788A2 (en) | 2008-08-13 |
| EP1955788A3 EP1955788A3 (en) | 2009-02-25 |
| EP1955788B1 true EP1955788B1 (en) | 2010-06-16 |
Family
ID=39345124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20080002028 Expired - Fee Related EP1955788B1 (en) | 2007-02-06 | 2008-02-04 | Roll profiled component and procedure for its manufacture |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1955788B1 (en) |
| DE (2) | DE102007005880B4 (en) |
| ES (1) | ES2345796T3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2418024A1 (en) | 2010-08-13 | 2012-02-15 | DURA Automotive Body and Glass Systems GmbH | Method for manufacturing components, in particular for motor vehicles |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008026490A1 (en) * | 2008-06-03 | 2009-12-17 | Webasto Ag | Sliding device of an adjustable cover of a vehicle roof |
| DE102014115426B4 (en) * | 2014-10-23 | 2018-07-26 | Thyssenkrupp Ag | Apparatus and method for continuously advancing metal bands to a profile of longitudinally variable cross-section |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59179228A (en) * | 1983-03-31 | 1984-10-11 | Shiraki Kinzoku Kogyo Kk | Roll forming device |
| JP3500742B2 (en) * | 1994-12-07 | 2004-02-23 | アイシン精機株式会社 | Method of manufacturing a gradually changing roll molded product |
| DE19720109A1 (en) * | 1996-05-14 | 1997-11-20 | Werdau Fahrzeugwerk | Lightweight support for vehicles |
| JPH11104749A (en) * | 1997-09-29 | 1999-04-20 | Nippon Steel Corp | Steel belt for press forming and manufacture therefor |
| DE10011755B4 (en) | 2000-03-13 | 2005-05-25 | Peter Prof. Dr.-Ing. Dipl.-Wirtsch.-Ing. Groche | Method and device for producing a profile with variable cross-section over the longitudinal axis by roll forming |
| DE10217713A1 (en) * | 2002-02-13 | 2003-08-28 | Wagon Automotive Gmbh | Car door frame incorporates hollow metal profile around window opening with cross-section which varies along its length |
| DE10210807A1 (en) * | 2002-03-12 | 2003-10-02 | Kronenberg Profil Gmbh | Profile part, device and method for its production and use of the profile part |
| DE10350776A1 (en) * | 2003-10-30 | 2005-06-09 | Daimlerchrysler Ag | Component with in its longitudinal course changing profile cross-section |
-
2007
- 2007-02-06 DE DE200710005880 patent/DE102007005880B4/en not_active Expired - Fee Related
-
2008
- 2008-02-04 EP EP20080002028 patent/EP1955788B1/en not_active Expired - Fee Related
- 2008-02-04 ES ES08002028T patent/ES2345796T3/en active Active
- 2008-02-04 DE DE200850000781 patent/DE502008000781D1/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2418024A1 (en) | 2010-08-13 | 2012-02-15 | DURA Automotive Body and Glass Systems GmbH | Method for manufacturing components, in particular for motor vehicles |
| DE102010055990A1 (en) | 2010-08-13 | 2012-02-16 | Dura Automotive Body & Glass Systems Gmbh | Method for producing components, in particular for motor vehicles |
Also Published As
| Publication number | Publication date |
|---|---|
| DE502008000781D1 (en) | 2010-07-29 |
| DE102007005880B4 (en) | 2009-10-29 |
| EP1955788A3 (en) | 2009-02-25 |
| EP1955788A2 (en) | 2008-08-13 |
| DE102007005880A1 (en) | 2008-08-07 |
| ES2345796T3 (en) | 2010-10-01 |
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