EP2977119A2 - Method for producing a torsion profile from a plate, and torsion profile - Google Patents
Method for producing a torsion profile from a plate, and torsion profile Download PDFInfo
- Publication number
- EP2977119A2 EP2977119A2 EP15176230.9A EP15176230A EP2977119A2 EP 2977119 A2 EP2977119 A2 EP 2977119A2 EP 15176230 A EP15176230 A EP 15176230A EP 2977119 A2 EP2977119 A2 EP 2977119A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- trough
- legs
- longitudinal edges
- spacer
- bent
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 125000006850 spacer group Chemical group 0.000 claims abstract description 49
- 238000000034 method Methods 0.000 claims abstract description 31
- 238000005304 joining Methods 0.000 claims abstract description 14
- 230000007704 transition Effects 0.000 claims abstract description 7
- 230000006978 adaptation Effects 0.000 claims abstract description 5
- 238000005452 bending Methods 0.000 claims abstract description 5
- 239000000314 lubricant Substances 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 239000011324 bead Substances 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 6
- 229910021389 graphene Inorganic materials 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims description 4
- -1 polytetrafluoroethylene Polymers 0.000 claims description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 description 5
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
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
- B21D7/00—Bending rods, profiles, or tubes
-
- 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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
- B21D22/025—Stamping using rigid devices or tools for tubular articles
-
- 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 method for producing a Torsionsprofils from a circuit board according to the preamble of patent claim 1 and Torsionsprofil according to the preamble of claim 8.
- process step d) can also be carried out before one of process steps a), b) or c).
- the board can have all possible contours.
- the board is contoured rectangular, so that when bending the legs of the deformed board, after in this a longitudinally directed U-shaped recess was introduced at a distance from their front ends, have approximately the same width over its entire longitudinal extent.
- the bent legs are bent such that they are arranged substantially parallel to each other and parallel to the central longitudinal plane of the trough.
- the tubular deformation of the bent legs in which the front ends of the board adjacent areas and the U-shaped deformation of the bent legs in the longitudinal section with the trough in adaptation to the contour of the trough, the longitudinal edges of the bent legs are arranged opposite each other over their entire longitudinal extent.
- the tubular deformation should not be limited to a round, oval or similar geometry. Rather, it should be understood to mean any deformation, so that the end portions of the resulting profile can be molded to other components, of course, they are formed according to torsional stiffness.
- the invention is characterized by the fact that by introducing at least one spacer in the formed board, the bent legs and are at least partially held at a distance in the direction of longitudinal edges of the central longitudinal section extending boundary walls of the trough, wherein after joining the longitudinal edges of the deformed legs, the bent legs and the boundary walls of the trough in the central longitudinal section, which is claimed in the torsion profile to torsion, spaced are.
- the bent legs and the boundary walls no longer rub against one another or slide off completely under a torsional load, so that the generation of noises, in particular in frequency ranges that are unpleasant or even painful for the human ear, is effectively reduced.
- bent legs and the boundary walls of the trough extending in the direction of longitudinal edges of the central longitudinal section are kept at a distance over their entire longitudinal extent. This ensures that the bent legs and the boundary walls at a torsional stress no longer rub against each other or slide off, so that the formation of noise, especially in frequency ranges that are uncomfortable or even painful for the human ear, is effectively avoided.
- a projecting bead from the bottom of the trough is formed in the direction of the longitudinal edges of the central longitudinal section.
- the introduction of the at least one spacer between the longitudinal edges of the bent legs ensures that the entire manufacturing process of the already known DE 10 2009 031 981 A1 can continue to be used, with only the final joining can be done only after the introduction of this spacer.
- the bent legs before introducing the spacer still on the boundary walls of the trough but by introducing the spacer between the longitudinal edges of the bent legs is achieved that a bending of the bent legs takes place, so between them and the boundary walls of the trough now required distance is formed.
- the now occurring between the bent legs and the boundary walls gap is sufficient to avoid noise formation under torsional stress of the central longitudinal section of the Torsionsprofils.
- the introduction of the at least one spacer is, however, such that it is located after the U-shaped deformation of the bent leg between the bent leg and in the direction of the longitudinal edges of the central longitudinal section extending boundary wall of the trough.
- two spacers are advantageously used, so that in each case one is located between a bent leg and a boundary wall on both sides of the trough. Even by the introduction of such a spacer a complete contact of the bent legs and the boundary walls of the trough in the central longitudinal section of the Torsionsprofils is avoided, so that also in the torsion case, the noise is avoided by a rubbing together of the legs on the boundary walls.
- solid lubricants such as graphite, graphene, molybdenum sulfide, polytetrafluoroethylene or the like uses solid lubricants.
- the friction or sliding properties of these materials enable a virtually silent, imperceptible to human hearing sliding these elements on the boundary walls of the trough and the bent legs.
- these spacers can be arranged before the deformation of the board at the corresponding points of the board.
- the spacers are made in the form of a deformation of the bent leg or the boundary walls of the trough and in the area to be provided to the boundary walls or the bent legs extending surface with a corresponding solid lubricant.
- both the solid lubricants and the viscous lubricants after completion of the Torsionsprofils again, for example chemically or by dissolution during the Torsionsbe screwung be removed from the Torsionsprofil, however, the spacing of the legs to the boundary walls of the trough is maintained.
- the torsion profile according to the invention made of a board has a torsionally rigid tubular end portion, a torsionally soft U-shaped middle, a trough forming longitudinal section and between the central longitudinal portion and the end portions of the U-shaped in the tubular cross-section changing transition sections, wherein the central longitudinal portion formed is that bent legs and adjacent to the longitudinal edges of the central longitudinal section extending boundary walls of the trough are arranged adjacent.
- the torsion profile according to the invention is now distinguished by the fact that at least a spacer is provided, by which the bent legs are held around the boundary walls of the trough in the central longitudinal section at a distance.
- the at least one spacer is arranged between longitudinal edges of the deformed legs. This ensures that such a spacer can be easily inserted into a gap between the longitudinal edges of the deformed legs, whereby the bent legs are widened again slightly, so that forms the gap between the legs and the boundary walls of the trough.
- the spacer can torsional profiles with different distances between the legs and the boundary walls can be realized, but can be used on the same production tools. This is particularly advantageous because it does not require the provision of a large number of production tools in order to produce different torsion profiles with different torsion properties.
- the torsion property of the Torsionsprofils can be adjusted by an appropriate use of the spacer.
- the spacer is joined to the longitudinal edges of the deformed legs, in particular welded.
- At least one spacer between the bent legs and a extending in the direction of the longitudinal edges of the central longitudinal section boundary wall of the trough is arranged.
- This also makes the bent Leg and the boundary walls of the trough held at a distance, so that in this case a gap between these elements is formed so that no contact between the legs and the boundary walls of the trough occurs in torsional stress in the central longitudinal section.
- the longitudinal edges of the deformed legs are now joined together, in particular welded together.
- the at least one spacer made of a solid lubricant, in particular graphite, graphene, molybdenum sulfide, polytetrafluoroethylene or the like , Namely, such solid lubricants have the special property that they slide particularly well on other materials, in particular relatively smooth materials without noise.
- the spacing between the bent legs and the boundary walls of the trough is uniform over the entire central longitudinal section.
- torsion profiles of this type can be produced particularly economically in terms of process technology.
- the trough has a projecting bead which extends from the bottom to form a free space in the direction of the longitudinal edges of the central longitudinal section.
- the boundary walls of the trough and the bent legs are joined or welded together in an unintentional manner when a high energy input into the material takes place during welding.
- the torsion profile according to the invention is produced by the method according to the invention described above.
- FIG. 1 an embodiment of a Torsionsprofils 1 according to the invention is shown in a perspective view.
- the torsion profile 1 has torsionally rigid, substantially circular, tubular end portions 2, a torsionally soft U-shaped central longitudinal section 3 and between the central longitudinal section 3 and the end sections 2 from the U-shaped in the tubular cross-section changing transition sections 4.
- the torsion profile 1 is provided in the middle longitudinal section 3 with a trough 11, so that formed by this trough 11 of the central longitudinal section 3 is U-shaped.
- a bottom 47 of this trough is in this case arranged opposite longitudinal edges 7, which are of ear-shaped design, wherein the torsion profile 1 in the middle longitudinal section 3 is thus configured as double-layered or double-walled.
- the torsion profile 1 is made of a rectangular metal plate 8, from the in FIG. 2 a half is shown. The other half is a mirror image, so below in the FIGS. 3 to 5 only this one half is illustrated and also described.
- the front ends 9 adjacent regions 10 of the board 8 are first deformed S-shaped.
- the tools used for this purpose are not shown in detail.
- the thus deformed board 8 is provided between the S-shaped portions 10 with a U-shaped recess 11.
- the board 8 is placed between an upper tool, not shown here and a lower tool, also not shown.
- the upper tool determines with a bead, the inner contour of the trough, while the lower tool with a groove serves as an abutment and determines the outer contour.
- the trough 11 is inserted centrally in the board 8 such that adjacent to the trough 11 in approximately equal legs 14 and 15 are formed.
- a deformed board 8 is in the FIG. 3 shown.
- the approximately constant legs 14 and 15 of the board 8 next to the trough 11 substantially parallel to each other and bent to the central longitudinal plane of the trough 11.
- a correspondingly shaped board 8 is in the FIG. 4 shown.
- Formed board 8 is then transformed using other tools so that the legs 14 and 15 in contact with their longitudinal edges 35 and 36 in the ends of the formed plate 8 tubular and the central longitudinal section 3 with the trough 11 are U-shaped deformed.
- Such a deformed board 8 is shown in the illustration FIG. 5 shown.
- FIG. 6 now shows a cross-sectional view of according to FIG. 5
- the legs 14 and 15 abut boundary walls 54 and 55 of the trough 11 and contact them.
- the longitudinal edges 35 and 36 of the legs 14 and 15 are opposed to form a gap 42.
- the trough 11 is provided in its bottom 47 with a bead 48, so that between the legs 14 and 15 and the boundary walls 54 and 55 in the region of the gap 42, a clearance 49 is formed.
- this Torsionsprofil 1 in its central longitudinal section 3, which can be subjected to torsional stress, no contacts of the legs 14 and 15 with the corresponding boundary walls 54 and 55, so at a Torsionsbe screwung the Torsionsprofils a noise due to rubbing legs 14 and 15 and boundary surfaces 54 and 55 is avoided.
- FIGS. 9 and 10 Another embodiment of a Torsionsprofils 1 according to the invention is in the FIGS. 9 and 10 shown. As can be clearly seen, no spacer is inserted in the gap 42 between the longitudinal edges 35 and 36 of the legs 14 and 15 in this embodiment. Rather, a separate spacer 51 and 52 is used in each case between the leg 14 and the boundary wall 54 and between the leg 15 and the boundary wall 55.
- the leg 14 is spaced from the boundary wall 54, while by the spacer 52, the leg 15 is spaced from the boundary wall 55.
- these spacers 51 and 52 are formed from a solid lubricant, such as graphite, graphene, molybdenum sulfide or polytetrafluoroethylene. These materials have particularly good sliding properties, so that no or no perceptible to human hearing noise in torsion occurs when these spacers 51 and 52 against the legs 14 and 15 and the boundary walls 54 and 55 are moved.
- a closed profile is formed in this embodiment, the longitudinal edges 35 and 36 of the legs 14 and 15 of the thus formed board 8 are joined together, in particular welded together.
- Such a joint 62 is in FIG. 10 shown and will preferably be executed in a metallic circuit board as a weld.
- the spacers 51 and 52 can be placed correspondingly during various process steps in the production of the torsion profile 1 according to the invention.
- the rectangular board 8 may already be provided with corresponding spacers 51 and 52. However, it is also possible to place these spacers during other manufacturing steps during the process according to the invention.
Abstract
Die Erfindung betrifft ein Verfahren zum Herstellen eines Torsionsprofils (1) aus einer Platine (8), das torsionssteife rohrförmige Endabschnitte (2), einen torsionsweichen U-förmigen mittleren Längenabschnitt (3) und zwischen dem mittleren Längenabschnitt (3) sowie den Endabschnitten (2) vom U-förmigen in den rohrförmigen Querschnitt wechselnde Übergangsabschnitte (4) aufweist, mit folgenden Verfahrensschritten: a) Einbringen einer längs gerichteten U-förmigen Mulde (11) in die Platine (8) in Abstand zu ihren Stirnenden (9) unter Bildung von parallel zur Mulde (11) verlaufenden Schenkeln (14, 15), b) Umbiegen der Schenkel (14, 15) der verformten Platine (8) neben der Mulde (11), sodass sie im Wesentlichen parallel zueinander und zur Mittellängsebene der Mulde (11) angeordnet sind, c) Rohrförmiges Verformen der umgebogenen Schenkel (14, 15) in den den Stirnenden (9) der Platine (8) benachbarten Bereichen (10) und U-förmiges Verformen der umgebogenen Schenkel (14, 15) im Längenabschnitt (3) mit der Mulde (11) in Anpassung an die Kontur der Mulde (11), wobei Längskanten (35, 36) der umgebogenen Schenkel (14, 15) über ihre gesamte Längserstreckung gegenüberliegend angeordnet werden, d) Einbringen wenigstens eines Abstandshalters (50; 51, 52) in die umgeformte Platine 8, sodass die umgebogenen Schenkels (14, 15) und sich in Richtung von Längsränder (7) des mittleren Längenabschnitts (3) erstreckenden Begrenzungswände (54, 55) der Mulde (11) auf Abstand gehalten werden und e) Fügen der Längskanten (35, 36) der verformten Schenkel (14, 15).The invention relates to a method for producing a torsion profile (1) from a circuit board (8), the torsionally rigid tubular end sections (2), a torsionally soft U-shaped central longitudinal section (3) and between the central longitudinal section (3) and the end sections (2 ) from the U-shaped in the tubular cross-section changing transition sections (4), comprising the following method steps: a) introducing a longitudinal U-shaped recess (11) in the board (8) at a distance from their front ends (9) to form parallel to the trough (11) extending legs (14, 15), b) bending the legs (14, 15) of the deformed blank (8) adjacent the trough (11) so that they are arranged substantially parallel to one another and to the central longitudinal plane of the trough (11), c) tube-shaped deformation of the bent legs (14, 15) in the front ends (9) of the board (8) adjacent areas (10) and U-shaped deformation of the bent legs (14, 15) in the longitudinal section (3) with the trough (11) in adaptation to the contour of the trough (11), wherein longitudinal edges (35, 36) of the bent legs (14, 15) are arranged opposite one another over their entire longitudinal extent, d) introducing at least one spacer (50, 51, 52) into the formed blank 8, so that the bent limbs (14, 15) and boundary walls (54, 55) extending in the direction of longitudinal edges (7) of the central length section (3) the trough (11) are kept at a distance and e) joining the longitudinal edges (35, 36) of the deformed legs (14, 15).
Description
Die Erfindung betrifft ein Verfahren zum Herstellen eines Torsionsprofils aus einer Platine nach dem Oberbegriff des Patentanspruchs 1 sowie Torsionsprofil nach dem Oberbegriff des Patentanspruchs 8.The invention relates to a method for producing a Torsionsprofils from a circuit board according to the preamble of patent claim 1 and Torsionsprofil according to the preamble of
Aus der auf den Anmelder zurückgehenden
Bei dem nach dem aus der
Es ist daher Aufgabe der Erfindung, ein Verfahren zum Herstellen eines Torsionsprofils aus einer Platine sowie ein Torsionsprofil zur Verfügung zu stellen, bei dem eine unterwünschte Geräuschbildung nicht auftritt.It is therefore an object of the invention to provide a method for producing a Torsionsprofils from a board and a Torsionsprofil available, in which an undesirable noise does not occur.
Verfahrensmäßig wird diese Aufgabe gelöst, durch ein Verfahren mit allen Merkmalen des Patenanspruchs 1. Hinsichtlich des Torsionsprofils wird die Aufgabe gelöst durch ein Torsionsprofil mit allen Merkmalen des Patentanspruchs 8. Vorteilhafte Ausgestaltungen der Erfindung finden sich in den Unteransprüchen.This object is achieved by a method having all the features of claim 1. With regard to the Torsionsprofils the object is achieved by a Torsionsprofil with all features of
Das erfindungsgemäße Verfahren zum Herstellen eines Torsionsprofils aus einer Platine, das torsionssteife rohrförmige Endabschnitte, einen torsionsweichen U-förmigen mittleren Längenabschnitt und zwischen dem mittleren Längenabschnitt sowie den Endabschnitten von U-förmigen in den rohrförmigen Querschnitt wechselnden Übergangsabschnitte aufweist, weist dabei folgende Verfahrensschritte auf:
- a) Einbringen einer längs gerichteten U-förmigen Mulde in die Platine in Abstand zu ihren Stirnenden unter Bildung von Schenkeln, die von der Mulde abgestellt sind,
- b) Umbiegen der Schenkel der verformten Platine neben der Mulde, sodass sie im Wesentlichen parallel zueinander und zur Mittellängsebene der Mulde angeordnet sind,
- c) Rohrförmiges Verformen der umgebogenen Schenkel in den den Stirnenden der Platine benachbarten Bereichen und U-förmiges Verformen der umgebogenen Schenkel im Längenabschnitt mit der Mulde in Anpassung an die Kontur der Mulde, wobei Längskanten der umgebogenen Schenkel über ihre gesamte Längserstreckung gegenüberliegend angeordnet werden.
- a) introducing a longitudinal U-shaped recess into the board at a distance from its front ends to form legs which are offset from the recess,
- b) bending the legs of the deformed blank next to the trough so that they are substantially parallel to each other and to the central longitudinal plane of the trough,
- c) deforming the bent legs in the areas adjacent to the front ends of the board and U-shaped deformation of the bent legs in the longitudinal section with the trough in adaptation to the contour of the trough, wherein longitudinal edges of the bent legs are arranged opposite each other over their entire longitudinal extent.
Das erfindungsgemäße Verfahren zeichnet sich nun durch folgende weitere Verfahrensschritte aus:
- d) Einbringen wenigstens eines Abstandshalters in die umgeformte Platine, sodass die umgebogenen Schenkels und sich in Richtung von Längsränder des mittleren Längenabschnitts erstreckenden Begrenzungswände der Mulde zumindest bereichsweise auf Abstand gehalten werden und
- e) Fügen der Längskanten der verformten Schenkel.
- d) introducing at least one spacer in the formed board, so that the bent leg and in the direction of longitudinal edges of the central longitudinal section extending boundary walls of the trough are at least partially maintained at a distance and
- e) joining the longitudinal edges of the deformed legs.
Dabei müssen die einzelnen Verfahrenschritte chronologisch nicht in der hier dargestellten Reihenfolge durchgeführt werde, insbesondere kann der Verfahrenschritt d) auch vor einem der Verfahrenschritte a), b) oder c) durchgeführt werden.In this case, the individual process steps must not be carried out chronologically in the order shown here; in particular, process step d) can also be carried out before one of process steps a), b) or c).
Die Platine kann dabei alle möglichen Konturen aufweisen. Vorteilhafterweise ist die Platine allerdings rechteckig konturiert, sodass beim Umbiegen der Schenkel der verformten Platine, nachdem in diese eine längs gerichtete U-förmige Mulde in Abstand zu ihren Stirnenden eingebracht wurde, über ihre gesamte Längserstreckung in etwa die gleiche Breite aufweisen. Die umgebogenen Schenkel werden dabei derart gebogen, dass sie im Wesentlichen parallel zueinander und parallel zur Mittellängsebene der Mulde angeordnet sind. Durch das rohrförmige Verformen der umgebogenen Schenkel in denen den Stirnenden der Platine benachbarten Bereichen und dem U-förmigen Verformen der umgebogenen Schenkel im Längenabschnitt mit der Mulde in Anpassung an die Kontur der Mulde, werden die Längskanten der umgebogenen Schenkel über ihre gesamte Längserstreckung gegenüberliegend angeordnet. Das rohrförmige Verformen soll hierbei nicht auf eine runde, ovale oder ähnliche Geometrie beschränkt sein. Vielmehr soll darunter jegliches Verformen verstanden werden, sodass die Endabschnitte des so entstandenen Profils an andere Bauteile angeformt werden können, wobei sie natürlich entsprechend torsionssteif ausgebildet sind.The board can have all possible contours. Advantageously, however, the board is contoured rectangular, so that when bending the legs of the deformed board, after in this a longitudinally directed U-shaped recess was introduced at a distance from their front ends, have approximately the same width over its entire longitudinal extent. The bent legs are bent such that they are arranged substantially parallel to each other and parallel to the central longitudinal plane of the trough. By the tubular deformation of the bent legs in which the front ends of the board adjacent areas and the U-shaped deformation of the bent legs in the longitudinal section with the trough in adaptation to the contour of the trough, the longitudinal edges of the bent legs are arranged opposite each other over their entire longitudinal extent. The tubular deformation should not be limited to a round, oval or similar geometry. Rather, it should be understood to mean any deformation, so that the end portions of the resulting profile can be molded to other components, of course, they are formed according to torsional stiffness.
Die Erfindung zeichnet sich nunmehr dadurch aus, dass durch das Einbringen wenigstens eines Abstandhalters in die umgeformte Platine die umgebogenen Schenkel und sich in Richtung von Längsrändern des mittleren Längenabschnitts erstreckenden Begrenzungswände der Mulde zumindest bereichsweise auf Abstand gehalten werden, wobei nach dem Fügen der Längskanten der verformten Schenkel die umgebogenen Schenkel und die Begrenzungswände der Mulde im mittleren Längenabschnitt, der bei dem Torsionsprofil auf Torsion beanspruchbar ist, beabstandet sind. Hierdurch ist erfindungsgemäß erreicht, dass die umgebogenen Schenkel und die Begrenzungswände bei einer Torsionsbeanspruchung nicht mehr vollflächig aneinander reiben beziehungsweise abgleiten, sodass die Entstehung von Geräuschen, insbesondere in Frequenzbereichen, die für das menschliche Ohr unangenehm oder sogar schmerzend sind, wirkungsvoll reduziert ist. Besonders vorteilhaft ist es allerdings, wenn die umgebogenen Schenkel und die sich in Richtung von Längsrändern des mittleren Längenabschnitts erstreckenden Begrenzungswände der Mulde über ihre gesamte Längserstreckung auf Abstand gehalten werden. Hierdurch ist erreicht, dass die umgebogenen Schenkel und die Begrenzungswände bei einer Torsionsbeanspruchung überhaupt nicht mehr aneinander reiben beziehungsweise abgleiten, sodass die Entstehung von Geräuschen, insbesondere in Frequenzbereichen, die für das menschliche Ohr unangenehm oder sogar schmerzend sind, wirkungsvoll vermieden ist.The invention is characterized by the fact that by introducing at least one spacer in the formed board, the bent legs and are at least partially held at a distance in the direction of longitudinal edges of the central longitudinal section extending boundary walls of the trough, wherein after joining the longitudinal edges of the deformed legs, the bent legs and the boundary walls of the trough in the central longitudinal section, which is claimed in the torsion profile to torsion, spaced are. In this way, according to the invention, it is achieved that the bent legs and the boundary walls no longer rub against one another or slide off completely under a torsional load, so that the generation of noises, in particular in frequency ranges that are unpleasant or even painful for the human ear, is effectively reduced. However, it is particularly advantageous if the bent legs and the boundary walls of the trough extending in the direction of longitudinal edges of the central longitudinal section are kept at a distance over their entire longitudinal extent. This ensures that the bent legs and the boundary walls at a torsional stress no longer rub against each other or slide off, so that the formation of noise, especially in frequency ranges that are uncomfortable or even painful for the human ear, is effectively avoided.
Da das Fügen der Längskanten aufgrund der üblicherweise aus einem Metall, insbesondere aus einem Stahl oder Aluminium bestehenden Platine mittels eines Schweißverfahrens erfolgt und dadurch ein hoher Energieeintrag erfolgt, ist in einer ersten Ausgestaltung des erfindungsgemäßen Verfahrens vorgesehen, dass ein vorspringender Wulst aus dem Boden der Mulde in Richtung der Längsränder des mittleren Längenabschnitts ausgeformt wird. Hierdurch ist sicher vermieden, dass durch den beim Fügen bzw. Schweißen eingebrachte Energieeintrag nicht auch noch den Boden der Mulde mit den umgebogenen Schenkeln verschweißt wird. Hierdurch ist zwischen den umgebogenen Schenkeln und des Wulstes im Bereich des Bodens der Mulde ein Freiraum gebildet, durch den vermieden ist, dass ein Verschweißen der Schenkel und mit dem Boden der Mulde stattfinden kann.Since the joining of the longitudinal edges due to the usually made of a metal, in particular made of a steel or aluminum board by means of a welding process and thereby a high energy input, is provided in a first embodiment of the method according to the invention that a projecting bead from the bottom of the trough is formed in the direction of the longitudinal edges of the central longitudinal section. As a result, it is reliably avoided that the energy input introduced during joining or welding does not also weld the bottom of the trough to the bent-over limbs. As a result, a clearance is formed between the bent legs and the bead in the region of the bottom of the trough, is avoided by the fact that a welding of the legs and with the bottom of the trough can take place.
Nach einer ersten besonders vorteilhaften Ausgestaltung des erfindungsgemäßen Verfahrens erfolgt das Einbringen des wenigstens einen Abstandshalters zwischen den Längskanten der umgebogenen Schenkel. Hierdurch ist erreicht, dass das gesamte Herstellungsverfahren aus der bereits bekannten
Der so in den Spalt zwischen den Längskanten der verformten Schenkel eingebrachte Abstandshalter wird nunmehr mit den verformten Schenkeln im Bereich ihrer Längskanten gefügt, insbesondere geschweißt, sodass das fertige Torsionsprofil entstanden ist.The spacer thus introduced into the gap between the longitudinal edges of the deformed limbs is now joined with the deformed limbs in the region of their longitudinal edges, in particular welded, so that the finished torsion profile has been created.
Nach einem weiteren erfindungsgemäßen Verfahren erfolgt das Einbringen des wenigstens einen Abstandhalters allerdings derart, dass er sich nach dem U-förmigen Verformen des umgebogenen Schenkels zwischen dem umgebogenen Schenkel und einer sich in Richtung der Längsränder des mittleren Längenabschnitts erstreckenden Begrenzungswand der Mulde befindet. Dabei werden vorteilhafterweise zwei Abstandshalter verwendet, sodass sich jeweils einer zwischen einem umgebogenen Schenkel und einer Begrenzungswand auf beiden Seiten der Mulde befindet. Auch durch das Einbringen eines derartigen Abstandhalters wird ein vollständiges kontaktieren der umgebogenen Schenkel und der Begrenzungswände der Mulde im mittleren Längenabschnitt des Torsionsprofils vermieden, sodass auch hierdurch im Torsionsfall die Geräuschbildung durch ein Aneinanderreiben der Schenkel an den Begrenzungswänden vermieden ist.According to a further inventive method, the introduction of the at least one spacer is, however, such that it is located after the U-shaped deformation of the bent leg between the bent leg and in the direction of the longitudinal edges of the central longitudinal section extending boundary wall of the trough. In this case, two spacers are advantageously used, so that in each case one is located between a bent leg and a boundary wall on both sides of the trough. Even by the introduction of such a spacer a complete contact of the bent legs and the boundary walls of the trough in the central longitudinal section of the Torsionsprofils is avoided, so that also in the torsion case, the noise is avoided by a rubbing together of the legs on the boundary walls.
Damit keinerlei Geräuschbildung auftritt, werden als Abstandshalter vorteilhafterweise Festschmierstoffe, beispielsweise Graphit, Graphen, Molybdänsulfid, Polytetrafluorethylen oder dergleichen Festschmierstoffe verwendet. Die Reibungs- bzw. Gleiteigenschaften diese Materialien ermöglichen ein nahezu geräuschloses, für das menschliche Gehör nicht wahrnehmbares Abgleiten dieser Elemente auf den Begrenzungswänden der Mulde beziehungsweise den umgebogenen Schenkeln. Dabei können diese Abstandshalter bereits vor dem Verformen der Platine an den entsprechenden Stellen der Platine angeordnet werden. Allerdings ist es auch denkbar, diese Abstandshalter während einem der verschiedenen Herstellungsschritte an den entsprechenden Positionen an der bereits umgeformten Platine zu positionieren. Ferner kann dabei auch vorgesehen sein, dass die Abstandshalter in Form einer Umformung des umgebogenen Schenkels beziehungsweise der Begrenzungswände der Mulde hergestellt sind und im Bereich, der sich zu den Begrenzungswänden beziehungsweise den umgebogenen Schenkeln erstreckenden Fläche mit einem entsprechenden Festschmierstoff versehen werden. Natürlich ist es auch möglich, hier keine Festschmierstoffe, sondern viskose Schmierstoffe zu verwenden. Gegebenenfalls können sowohl die Festschmierstoffe als auch die viskosen Schmierstoffe nach Fertigstellung des Torsionsprofils auch wieder, beispielsweise chemisch oder auch durch ein Auflösen währen der Torsionsbeanspruchung aus dem Torsionsprofil herausgelöst werden, wobei allerdings die Beabstandung der Schenkel zu den Begrenzungswänden der Mulde aufrecht erhalten bleibt.So that no noise occurs, as a spacer advantageously solid lubricants, such as graphite, graphene, molybdenum sulfide, polytetrafluoroethylene or the like uses solid lubricants. The friction or sliding properties of these materials enable a virtually silent, imperceptible to human hearing sliding these elements on the boundary walls of the trough and the bent legs. In this case, these spacers can be arranged before the deformation of the board at the corresponding points of the board. However, it is also conceivable to position these spacers during one of the various production steps at the corresponding positions on the already formed blank. Furthermore, it can also be provided that the spacers are made in the form of a deformation of the bent leg or the boundary walls of the trough and in the area to be provided to the boundary walls or the bent legs extending surface with a corresponding solid lubricant. Of course, it is also possible to use here no solid lubricants, but viscous lubricants. Optionally, both the solid lubricants and the viscous lubricants after completion of the Torsionsprofils again, for example chemically or by dissolution during the Torsionsbeanspruchung be removed from the Torsionsprofil, however, the spacing of the legs to the boundary walls of the trough is maintained.
Bei einem nach einem derartigen Verfahren hergestellten Torsionsprofil werden wie bereits aus dem Stand der Technik bekannt, die Längskanten der verformten Schenkel miteinander gefügt, insbesondere verschweißt.In a torsion profile produced by such a method, as already known from the prior art, the longitudinal edges of the deformed legs are joined together, in particular welded.
Das aus einer Platine hergestellte erfindungsgemäße Torsionsprofil weist einen torsionssteifen rohrförmigen Endabschnitt, einen torsionsweichen U-förmigen mittleren, eine Mulde bildenden Längenabschnitt und zwischen dem mittleren Längenabschnitt sowie den Endabschnitten vom U-förmigen in den rohrförmigen Querschnitt wechselnde Übergangsabschnitte auf, wobei der mittlere Längenabschnitt derart ausgebildet ist, dass gebogene Schenkel und sich in Richtung der Längsränder des mittleren Längenabschnitts erstreckenden Begrenzungswände der Mulde benachbart angeordnet sind. Das erfindungsgemäße Torsionsprofil zeichnet sich nunmehr dadurch aus, dass wenigstens ein Abstandshalter vorgesehen ist, durch welchen die gebogenen Schenkel um die Begrenzungswände der Mulde im mittleren Längenabschnitt auf Abstand gehalten sind.The torsion profile according to the invention made of a board has a torsionally rigid tubular end portion, a torsionally soft U-shaped middle, a trough forming longitudinal section and between the central longitudinal portion and the end portions of the U-shaped in the tubular cross-section changing transition sections, wherein the central longitudinal portion formed is that bent legs and adjacent to the longitudinal edges of the central longitudinal section extending boundary walls of the trough are arranged adjacent. The torsion profile according to the invention is now distinguished by the fact that at least a spacer is provided, by which the bent legs are held around the boundary walls of the trough in the central longitudinal section at a distance.
Durch diese Ausgestaltung des erfindungsgemäßen Torsionsprofils ist erreicht, dass zwischen den Begrenzungswänden der Mulde und den umgebogenen Schenkel des Profils ein Spalt gebildet ist, sodass im Torsionsfall diese keinen direkten Kontakt miteinander haben können, sodass einen Geräuschbildung wirkungsvoll vermieden ist.As a result of this configuration of the torsion profile according to the invention, it is achieved that a gap is formed between the boundary walls of the trough and the bent legs of the profile, so that in the case of torsion they can not have any direct contact with one another, so that noise generation is effectively avoided.
Nach einer ersten vorteilhaften Ausgestaltung des erfindungsgemäßen Torsionsprofils ist der wenigstens eine Abstandshalter zwischen Längskanten der verformten Schenkel angeordnet. Hierdurch ist erreicht, dass ein derartiger Abstandshalter einfach in einen Spalt zwischen den Längskanten der verformten Schenkel eingeführt werden kann, wodurch die umgebogenen Schenkel wieder etwas aufgeweitet werden, sodass sich der Spalt zwischen den Schenkeln und den Begrenzungswänden der Mulde bildet. Durch Variation des Abstandhalters lassen sich dabei Torsionsprofile mit unterschiedlichen Abständen zwischen den Schenkeln und den Begrenzungswänden realisieren, wobei aber auf die gleichen Herstellungswerkzeuge zurückgegriffen werden kann. Dies ist insbesondere deshalb vorteilhaft, da dadurch keine Vielzahl von Herstellungswerkzeugen vorgehalten werden muss, um unterschiedliche Torsionsprofile mit unterschiedlichen Torsionseigenschaften herzustellen. Dabei kann durch eine entsprechende Verwendung des Abstandshalters die Torsionseigenschaft des Torsionsprofils eingestellt werden.According to a first advantageous embodiment of the torsion profile according to the invention, the at least one spacer is arranged between longitudinal edges of the deformed legs. This ensures that such a spacer can be easily inserted into a gap between the longitudinal edges of the deformed legs, whereby the bent legs are widened again slightly, so that forms the gap between the legs and the boundary walls of the trough. By varying the spacer can torsional profiles with different distances between the legs and the boundary walls can be realized, but can be used on the same production tools. This is particularly advantageous because it does not require the provision of a large number of production tools in order to produce different torsion profiles with different torsion properties. In this case, the torsion property of the Torsionsprofils can be adjusted by an appropriate use of the spacer.
Der Abstandshalter ist dabei mit den Längskanten der verformten Schenkel gefügt, insbesondere verschweißt.The spacer is joined to the longitudinal edges of the deformed legs, in particular welded.
Nach einen anderen Ausgestaltung der Erfindung hat es sich als vorteilhaft erwiesen, dass wenigstens ein Abstandshalter zwischen den umgebogenen Schenkeln und einer sich in Richtung der Längsränder des mittleren Längenabschnitts erstreckenden Begrenzungswand der Mulde angeordnet ist. Auch hierdurch werden die umgebogenen Schenkel und die Begrenzungswände der Mulde auf Abstand gehalten, sodass auch hierbei ein Spalt zwischen diesen Elementen gebildet ist, sodass bei Torsionsbeanspruchung im mittleren Längenabschnitt keinerlei Kontaktierung zwischen den Schenkeln und den Begrenzungswänden der Mulde auftritt. Bei einer derartigen Ausführungsform sind nun wiederum die Längskanten der verformten Schenkel miteinander gefügt, insbesondere mit einander verschweißt.According to another embodiment of the invention, it has proven to be advantageous that at least one spacer between the bent legs and a extending in the direction of the longitudinal edges of the central longitudinal section boundary wall of the trough is arranged. This also makes the bent Leg and the boundary walls of the trough held at a distance, so that in this case a gap between these elements is formed so that no contact between the legs and the boundary walls of the trough occurs in torsional stress in the central longitudinal section. In such an embodiment, in turn, the longitudinal edges of the deformed legs are now joined together, in particular welded together.
Damit auch keine Geräuschbildung durch eine mögliche Reibung zwischen Abstandshalter und den Begrenzungswänden der Mulde beziehungsweise den umgebogenen Schenkeln entsteht, hat es sich als besonders vorteilhaft erwiesen, dass der wenigstens eine Abstandshalter aus einem Festschmierstoff, insbesondere aus Graphit, Graphen, Molybdänsulfid, Polytetrafluorethylen oder dergleichen besteht. Derartige Festschmierstoffe haben nämlich die besondere Eigenschaft, dass sie besonders gut auf anderen Materialien, insbesondere relativ glatten Materialien ohne eine Geräuschbildung abgleiten.So that no noise is formed by a possible friction between spacers and the boundary walls of the trough or the bent legs, it has proven to be particularly advantageous that the at least one spacer made of a solid lubricant, in particular graphite, graphene, molybdenum sulfide, polytetrafluoroethylene or the like , Namely, such solid lubricants have the special property that they slide particularly well on other materials, in particular relatively smooth materials without noise.
Vorteilhafterweise ist die Beabstandung zwischen den umgebogenen Schenkeln und den Begrenzungswänden der Mulde über den gesamten mittleren Längenabschnitt gleichmäßig. Derartige Torsionsprofile können nämlich verfahrenstechnisch besonders günstig hergestellt werden. Allerdings ist es auch möglich, ein erfindungsgemäßes Torsionsprofil derart auszugestalten, dass sich die Beabstandung zwischen den umgebogenen Schenkeln und den Begrenzungswänden der Mulde über den mittleren Längenabschnitt variiert.Advantageously, the spacing between the bent legs and the boundary walls of the trough is uniform over the entire central longitudinal section. Namely, torsion profiles of this type can be produced particularly economically in terms of process technology. However, it is also possible to design a torsion profile according to the invention such that the spacing between the bent legs and the boundary walls of the trough varies over the central longitudinal section.
Wie bereits bei dem erfindungsgemäßen Verfahren dargestellt, hat es sich als vorteilhaft erwiesen, dass im Bereich der Fügestellen die Mulde einen vorspringenden Wulst aufweist, welcher sich aus dem Boden unter Bildung eines Freiraums in Richtung der Längsränder des mittleren Längenabschnitts erstreckt. Hierdurch ist wirkungsvoll vermieden, dass die Begrenzungswände der Mulde und die umgebogenen Schenkel in nicht beabsichtigter Weise miteinander gefügt beziehungsweise verschweißt werden, wenn beim Schweißen ein hoher Energieeintrag in das Material erfolgt. Vorteilhafterweise ist das erfindungsgemäße Torsionsprofil nach dem zuvor beschriebenen erfindungsgemäßen Verfahren hergestellt.As already shown in the method according to the invention, it has proven to be advantageous that in the region of the joints the trough has a projecting bead which extends from the bottom to form a free space in the direction of the longitudinal edges of the central longitudinal section. As a result, it is effectively avoided that the boundary walls of the trough and the bent legs are joined or welded together in an unintentional manner when a high energy input into the material takes place during welding. Advantageously, the torsion profile according to the invention is produced by the method according to the invention described above.
Weitere Ziele, Vorteile, Merkmale und Anwendungsmöglichkeiten der vorliegenden Erfindung ergeben sich aus der nachfolgenden Beschreibung von Ausführungsbeispielen anhand der Zeichnungen. Dabei bilden alle beschriebenen und/oder bildlich dargestellten Merkmale für sich oder in beliebiger sinnvoller Kombination den Gegenstand der vorliegenden Erfindung, auch unabhängig von ihrer Zusammenfassung in den Ansprüchen oder deren Rückbeziehung.Other objects, advantages, features and applications of the present invention will become apparent from the following description of exemplary embodiments with reference to the drawings. All described and / or illustrated features alone or in any meaningful combination form the subject matter of the present invention, also independent of their summary in the claims or their dependency.
Es zeigen:
- Figur 1:
- ein Ausführungsbeispiel eines erfindungsgemäßen Torsionsprofils in einer perspektivischen Darstellung,
Figuren 2 bis 5:- verschiedene Verfahrensschritte bei der Herstellung eines Ausführungsbeispiels eines erfindungsgemäßen Torsionsprofils in perspektivischen Darstellungen,
- Figur 6:
- eine Querschnittdarstellung des Torsionsprofils der
Figur 5 senkrecht zur Mittellängsebene der Mulde des Torsionsprofils, - Figur 7:
- das Torsionsprofil gemäß
Figur 6 nach dem Einbringen eines Abstandhalters, - Figur 8:
- das
Torsionsprofil gemäß Figur 7 nach dem Fügen des Abstandhalters, - Figur 9:
- ein weiteres Ausführungsbeispiel eines erfindungsgemäßen Torsionsprofils vordem abschließenden Fügen und
- Figur 10:
- das Torsionsprofil gemäß der
Figur 9 nach dem abschließenden Fügen.
- FIG. 1:
- An embodiment of a Torsionsprofils invention in a perspective view,
- FIGS. 2 to 5:
- Various method steps in the production of an embodiment of a Torsionsprofils invention in perspective views,
- FIG. 6:
- a cross-sectional view of the torsion profile of
FIG. 5 perpendicular to the central longitudinal plane of the trough of the torsion profile, - FIG. 7:
- the torsion profile according to
FIG. 6 after inserting a spacer, - FIG. 8:
- the torsion profile according to
FIG. 7 after joining the spacer, - FIG. 9:
- a further embodiment of a Torsionsprofils invention before the final joining and
- FIG. 10:
- the torsion profile according to the
FIG. 9 after the final joining.
In der
Das Torsionsprofil 1 wird aus einer rechteckigen metallernen Platine 8 hergestellt, von der in
Zur Fertigung des Torsionsprofils werden zunächst die den Stirnenden 9 benachbarten Bereiche 10 der Platine 8 S-förmig verformt. Die hierfür zum Einsatz gelangenden Werkzeuge sind nicht näher dargestellt.To produce the torsion profile, the front ends 9
Im Anschluss daran wird die derart verformte Platine 8 zwischen den S-förmigen Bereichen 10 mit einer U-förmigen Mulde 11 versehen. Zur Herstellung der Mulde 11 wird die Platine 8 zwischen einem hier nicht dargestellten Oberwerkzeug und einem ebenfalls nicht dargestellten Unterwerkzeug platziert. Das Oberwerkzeug bestimmt mit einem Wulst die Innenkontur der Mulde, während das Unterwerkzeug mit einer Rinne als Gegenlager dient und die Außenkontur bestimmt.Subsequently, the thus
Die Mulde 11 wird in die Platine 8 derart mittig eingebracht, dass benachbart zur Mulde 11 in etwa gleich breite Schenkel 14 und 15 gebildet sind. Eine derartig verformte Platine 8 ist in der
Die gemäß der
Um nunmehr eine Kontaktierung der Schenkel 14 und 15 mit den Begrenzungswänden 54 und 55 zu vermeiden, wird in den Spalt 42 ein Abstandshalter 50 eingeführt. Dabei werden die Schenkel 14 und 15 wieder etwas aufgeweitet, sodass sie nunmehr nicht mehr in Kontakt mit den Begrenzungswänden 54 und 55 der Mulde 11 stehen. Die Ausgestaltung einer derartig umgeformten Platine 8 ist dabei in
Ein weiteres Ausführungsbeispiel eines erfindungsgemäßen Torsionsprofils 1 ist in den
Durch den Abstandshalter 51 ist der Schenkel 14 von der Begrenzungswand 54 beabstandet, während durch den Abstandshalter 52 der Schenkel 15 von der Begrenzungswand 55 beabstandet ist. Damit hierbei keine Geräuschbildung bei einer Torsionsbeanspruchung des Torsionsprofils 1 stattfindet, hat es sich als vorteilhaft erwiesen, wenn dieser Abstandshalter 51 und 52 aus einem Festschmierstoff, beispielsweise Graphit, Graphen, Molybdänsulfid oder Polytetrafluorethylen gebildet sind. Diese Materialien besitzen besonders gute Gleiteigenschaften, sodass keine beziehungsweise keine für das menschliche Gehör wahrnehmbare Geräuschbildung im Torsionsfall auftritt, wenn diese Abstandshalter 51 und 52 gegen die Schenkel 14 und 15 bzw. die Begrenzungswände 54 und 55 bewegt werden.By the
Damit auch bei diesem Ausführungsbeispiel ein geschlossenes Profil entsteht, werden die Längskanten 35 und 36 der Schenkel 14 und 15 der so umgeformten Platine 8 miteinander gefügt, insbesondere miteinander geschweißt. Eine derartige Fügestelle 62 ist in
Die Abstandshalter 51 und 52 können während verschiedener Verfahrensschritte bei der Herstellung des erfindungsgemäßen Torsionsprofils 1 entsprechend platziert werden. Zum einen kann bereits die rechteckige Platine 8 mit entsprechenden Abstandshaltern 51 und 52 versehen sein. Allerdings ist es auch möglich, diese Abstandshalter während anderer Herstellungsschritte während des erfindungsgemäßen Verfahrens entsprechend zu platzieren.The
- 11
- Torsionsprofiltorsion
- 22
- Endabschnittend
- 33
- mittlerer Längenabschnittmiddle length section
- 44
- ÜbergangsabschnittTransition section
- 77
- Längsrandlongitudinal edge
- 88th
- Platinecircuit board
- 99
- Stirnendefront end
- 1010
- BereichArea
- 1111
- Muldetrough
- 1414
- Schenkelleg
- 1515
- Schenkelleg
- 3535
- Längskantelongitudinal edge
- 3636
- Längskantelongitudinal edge
- 4242
- Spaltgap
- 4747
- Bodenground
- 4848
- Wulstbead
- 4949
- Freiraumfree space
- 5050
- Abstandshalterspacer
- 5151
- Abstandshalterspacer
- 5252
- Abstandshalterspacer
- 5454
- Begrenzungswandboundary wall
- 5555
- Begrenzungswandboundary wall
- 6060
- Fügestellejoint
- 6161
- Fügestellejoint
- 6262
- Fügestellejoint
Claims (16)
Applications Claiming Priority (1)
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DE102014109680.0A DE102014109680A1 (en) | 2014-07-10 | 2014-07-10 | Method for producing a torsion profile from a board and torsion profile |
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EP2977119A2 true EP2977119A2 (en) | 2016-01-27 |
EP2977119A3 EP2977119A3 (en) | 2016-05-25 |
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US (1) | US9802235B2 (en) |
EP (1) | EP2977119B1 (en) |
CN (1) | CN105251842B (en) |
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IN201817018675A (en) * | 2016-03-30 | 2018-09-21 | Nippon Steel & Sumitomo Metal Corp | |
DE102018100989B3 (en) * | 2018-01-17 | 2019-02-14 | Benteler Automobiltechnik Gmbh | Method for producing a bent torsion profile and torsion profile |
KR102245234B1 (en) * | 2018-11-30 | 2021-04-29 | 주식회사 포스코 | Manuacturing method for torsion beam |
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BRPI0803956B1 (en) * | 2008-09-12 | 2018-11-21 | Whirlpool S.A. | metallurgical composition of particulate materials and process for obtaining self-lubricating sintered products |
DE102008052554A1 (en) * | 2008-10-21 | 2010-04-29 | Benteler Automobiltechnik Gmbh | Cross member of a vehicle axle |
JP4858624B2 (en) * | 2009-04-01 | 2012-01-18 | Jfeスチール株式会社 | Torsion beam manufacturing method and torsion beam |
WO2013185212A1 (en) * | 2012-06-15 | 2013-12-19 | Magna International Inc. | Adjustable twist beam tube forming die |
-
2014
- 2014-07-10 DE DE102014109680.0A patent/DE102014109680A1/en not_active Ceased
-
2015
- 2015-07-08 US US14/794,627 patent/US9802235B2/en active Active
- 2015-07-10 CN CN201510404193.1A patent/CN105251842B/en active Active
- 2015-07-10 ES ES15176230T patent/ES2882094T3/en active Active
- 2015-07-10 EP EP15176230.9A patent/EP2977119B1/en active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009031981A1 (en) | 2009-02-24 | 2010-08-26 | Benteler Automobiltechnik Gmbh | Method for producing vehicle component in form of torsion profile from blank, involves providing blank with longitudinally aligned U-shaped trough at distance from its front end in production stage |
Also Published As
Publication number | Publication date |
---|---|
EP2977119B1 (en) | 2021-06-23 |
CN105251842B (en) | 2018-03-23 |
EP2977119A3 (en) | 2016-05-25 |
DE102014109680A1 (en) | 2016-01-14 |
US20160008863A1 (en) | 2016-01-14 |
ES2882094T3 (en) | 2021-12-01 |
US9802235B2 (en) | 2017-10-31 |
CN105251842A (en) | 2016-01-20 |
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