EP1714714B1 - Method for forming a groove - Google Patents

Method for forming a groove Download PDF

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Publication number
EP1714714B1
EP1714714B1 EP05008381A EP05008381A EP1714714B1 EP 1714714 B1 EP1714714 B1 EP 1714714B1 EP 05008381 A EP05008381 A EP 05008381A EP 05008381 A EP05008381 A EP 05008381A EP 1714714 B1 EP1714714 B1 EP 1714714B1
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EP
European Patent Office
Prior art keywords
groove
workpiece
region
forming
wall
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.)
Not-in-force
Application number
EP05008381A
Other languages
German (de)
French (fr)
Other versions
EP1714714A1 (en
Inventor
Ahmet Neset Sahrayicedit Mah. Tepe Sok. Özsoy
Bernhard Rolf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Repkon Machine And Tool Industry & Trade Ltd
Original Assignee
Repkon Machine And Tool Industry & Trade Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Repkon Machine And Tool Industry & Trade Ltd filed Critical Repkon Machine And Tool Industry & Trade Ltd
Priority to AT05008381T priority Critical patent/ATE366154T1/en
Priority to EP05008381A priority patent/EP1714714B1/en
Priority to DE502005000979T priority patent/DE502005000979D1/en
Publication of EP1714714A1 publication Critical patent/EP1714714A1/en
Application granted granted Critical
Publication of EP1714714B1 publication Critical patent/EP1714714B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B21D17/00—Forming single grooves in sheet metal or tubular or hollow articles
    • B21D17/04—Forming single grooves in sheet metal or tubular or hollow articles by rolling
    • 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
    • B21D53/26—Making other particular articles wheels or the like
    • B21D53/30—Making other particular articles wheels or the like wheel rims

Definitions

  • the invention relates to a method according to the preamble of claim 1. Such a method is known from DE-A-4125963 known.
  • FIG. 3 In order to form this wall 3, a circumferential accumulation of material 4 in the region of the groove 1 was welded in the past in a first variant (FIG. The accumulation of material divided the groove 1 in a first groove 1 and a second groove 2, which were then brought by means of rotating post-processing to the desired finished dimensions.
  • FIG. 4 Another possibility (FIG. 4) is to make a ring 5 with two grooves 1, 2 by machining and then to weld it to the rim 6.
  • the wall between the two grooves is produced by introducing a volume of material from the wall of the workpiece into the area of a pre-shaped first groove.
  • material from the wall is pressed into the first groove by a pressing operation in the region of the first groove, preferably by means of a first shaping roller.
  • the resulting material accumulation serves to form a wall between the first groove formed on the end face of the workpiece and the second groove further away from the end face. Both grooves are further formed to finished size.
  • the approximately hollow cylindrical workpiece 7 is fixed to a mandrel 8, which is set in rotational movement about the workpiece longitudinal axis X. Subsequently, a bead is preformed via a preforming roller 9 in the end face region of the workpiece 7.
  • a forming device 10, 11 which consists essentially of a formed at an angle to the axis X forming roller 10 for engagement on the inside of the workpiece 7 and an attacking on the outside of the workpiece counter element (counter roller) 11
  • the front end portion 12 of the workpiece 7 is formed into a first groove 1. This results in a collar-shaped portion on the front side of the workpiece 7. This transformation is predominantly by a compression process.
  • the forming device 10, 11 may be formed so that in the region 12 of the end face 24 of the workpiece wall by upsetting a narrow annular portion (not shown) is formed, which in a conclusion (ie after molding of the second groove 2) successive operation separated can be.
  • a narrow annular portion not shown
  • One of the described manner corresponding method for molding a groove 1 and for separating the annular region is in the European patent application EP 05 008 028.2 (filed on 13.04.2005 ) of the same applicant.
  • the local contour 15 shows the shape of the workpiece 7 after molding the first groove.
  • the line 14 shows the desired contour which the workpiece is to receive after molding to finished dimension, wherein 14a indicates the later desired shape of the second groove 2.
  • the line 16 shows the shape of the workpiece 7, after material 22 has already been displaced into the region 23 via the mold element 20.
  • the shaping of the second groove is as follows:
  • the shaping device 10, 11 is still held on the workpiece 7 while the mandrel 8 is still rotating.
  • a forming roller 17, which has a first mold element 20, is now placed in the region of the first groove 1 against the workpiece 7.
  • the first mold element 20 is thereby, as can be seen more precisely in FIG. 8a (enlargement of the region 13 in FIG. 8), pressed into the first groove 1 and simultaneously advanced in the X direction, so that the contour 15 of the workpiece 7 is changed and the contour 16 is formed.
  • material 22 is displaced, which, viewed in the direction of movement of the element 20, collects before it and at least partially fills the area 23 with a material volume 19.
  • This material volume 19 forms the partition wall between the first groove 1 and the second groove 2.
  • the material volume 19 is prevented by the element 11 from flowing further into the first groove 1 in the direction of the end face of the workpiece 7, whereby the left, the end face of the Workpiece 7 facing away from the shoulder 1a of the groove 1 at the same time receives their finished dimensions.
  • this process of displacing material 22 into space 23 may be repeated by molding element 20 until the material has (almost) completely filled area 23 behind first molding element 20.
  • the entire material projecting beyond the nominal line 14 is available in the workpiece 7.
  • the material volume 19 thus created then forms the wall between the first groove 1 and the second groove 2 formed thereby.
  • the second groove 2 is formed to finished size. If not already done, in this step further material can be forced into the space 23, so that it is finally completely filled.
  • the second mold element 18 has a profile corresponding to the desired shape of the second groove 2. This process is shown in FIG.
  • the wall thickness of the workpiece 7 in the region adjoining the second groove can be reduced to the desired thickness by a pressure roller 21 in a subsequent flow-forming operation.
  • the resulting wall thickness is indicated by the line 14.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Magnetic Heads (AREA)
  • Semiconductor Lasers (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

Method for forming a second groove in the region (12) of the end of a workpiece (7) on the front side comprises inserting a material from the wall of the workpiece into a region of a first groove (1). Preferred Features: Insertion of the material into the region of the first groove is carried out by pressing and sliding a first molded element (20) against the wall of the workpiece in the first groove.

Description

Die Erfindung betrifft ein Verfahren nach dem Oberbegriff von Anspruch 1. Ein derartiges Verfahren ist aus der DE-A-4125963 bekannt.The invention relates to a method according to the preamble of claim 1. Such a method is known from DE-A-4125963 known.

Es ist bekannt Radfelgen, insbesondere Schrägschulterfelgen, für Nutzfahrzeuge am stirnseitigen Ende mit einer Nut für Sprengringe zu versehen. Dabei werden die entsprechenden Felgenrohlinge, bei denen es sich in der Regel um zu einer Zylinderform aufgerollte und stumpfgeschweißte Bleche handelt, im Bereich der Stirnseite mit einer umlaufenden Nut 1 versehen (Fig. 1). US 3,779,060 beschreibt ein entsprechendes Verfahren. Zudem wird in der Regel eine zweite Nut 2 gewünscht, die gegenüber der ersten Nut 1 weiter von der Stirnseite der Felge weg, d.h. weiter innen, angeordnet und von der ersten Nut 1 durch eine Wand 3 getrennt ist (Fig. 2). Eine derartige Felge ist z.B. aus DE 41 25 963 A1 bekannt.It is known to provide wheel rims, in particular oblique shoulder rims, for commercial vehicles at the front end with a groove for snap rings. In this case, the corresponding rim blanks, which are usually rolled up to a cylindrical shape and butt-welded sheets, provided in the region of the end face with a circumferential groove 1 (Fig. 1). US 3,779,060 describes a corresponding method. In addition, a second groove 2 is desired as a rule, which is further away from the first groove 1 from the front side of the rim, ie further inside, and is separated from the first groove 1 by a wall 3 (FIG. 2). Such a rim is eg off DE 41 25 963 A1 known.

Zur Ausbildung dieser Wand 3 wurde in der Vergangenheit in einer ersten Variante (Fig. 3) eine umlaufende Materialanhäufung 4 im Bereich der Nut 1 angeschweißt. Die Materialanhäufung teilte die Nut 1 in eine erste Nut 1 und eine zweite Nut 2, die anschließend mittels drehender Nachbearbeitung auf die gewünschten Fertigmaße gebracht wurden. Eine weitere Möglichkeit (Fig. 4) besteht darin, einen Ring 5 mit zwei Nuten 1, 2 spanabhebend auszubilden und anschließend mit der Felge 6 zu verschweißen.In order to form this wall 3, a circumferential accumulation of material 4 in the region of the groove 1 was welded in the past in a first variant (FIG. The accumulation of material divided the groove 1 in a first groove 1 and a second groove 2, which were then brought by means of rotating post-processing to the desired finished dimensions. Another possibility (FIG. 4) is to make a ring 5 with two grooves 1, 2 by machining and then to weld it to the rim 6.

Beide genannten Vorgehensweisen erfordern mehrere Aufspannungen des Werkstücks, so daß die Fertigung von Schrägschulterfelgen hierdurch sehr arbeitsaufwendig wird.Both of these procedures require several fixtures of the workpiece, so that the production of Schrägschulterfelgen this is very laborious.

Es ist daher Aufgabe der vorliegenden Erfindung, ein Verfahren und eine Vorrichtung anzugeben, mit denen die Fertigung entsprechender Nuten im Rahmen einer einzigen Aufspannung des Werkstücks möglich ist.It is therefore an object of the present invention to provide a method and a device with which the production of corresponding grooves in the context of a single clamping of the workpiece is possible.

Diese Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst. Vorteilhafte Ausführungsformen finden sich in den abhängigen Ansprüchen.This object is solved by the features of claim 1. Advantageous embodiments can be found in the dependent claims.

Erfindungsgemäß wird die Wand zwischen den beiden Nuten durch eine aus der Wand des Werkstücks heraus erfolgende Einbringung eines Materialvolumens in den Bereich einer vorab geformten ersten Nut erzeugt. Dabei wird vorzugsweise mittels einer ersten Formrolle Material aus der Wand durch einen Drückvorgang im Bereich der ersten Nut in diese hineingedrückt. Die hieraus entstehende Materialansammlung dient zum Formen einer Wand zwischen der an der Stirnseite des Werkstücks gebildeten ersten Nut und der weiter von der Stirnseite weg liegenden zweiten Nut. Beide Nuten werden im weiteren auf Fertigmaß ausgeformt.According to the invention, the wall between the two grooves is produced by introducing a volume of material from the wall of the workpiece into the area of a pre-shaped first groove. In this case, material from the wall is pressed into the first groove by a pressing operation in the region of the first groove, preferably by means of a first shaping roller. The resulting material accumulation serves to form a wall between the first groove formed on the end face of the workpiece and the second groove further away from the end face. Both grooves are further formed to finished size.

Hierdurch wird es möglich, die beiden Nuten "aus dem Material selbst" zu fertigen. Zum einen sind keine zusätzlichen Aufspannungen des Werkstücks erforderlich, da das Werkstück lediglich umgeformt wird, zum anderen können Materialbeeinträchtigungen wie Bruchstellen vermieden werden, welche etwa durch Anschweißen von Material an das Werkstück entstehen.This makes it possible to manufacture the two grooves "from the material itself". On the one hand, no additional clamping of the workpiece is required because the workpiece is merely reshaped, on the other hand material damage such as breakages can be avoided, which is about by welding material to the workpiece.

Die Erfindung wird nachfolgend anhand von den Zeichnungen in den Figuren 5 bis 10 schematisch näher erläutert. Die Figuren 1 bis 4 zeigen Werkstücke nach dem Stand der Technik, die eingangs erläutert wurden.

Figur 5 -
zeigt ein bei der Erfindung verwendetes Werkstück im Ausgangszustand in seitlicher Schnittansicht,
Figur 6 -
zeigt das Vorformen der ersten Nut,
Figur 7 -
zeigt das weitere Ausformen der ersten Nut durch Umformen des stirnseitigen Bereichs des Werkstücks,
Figur 8 -
zeigt das Einbringen von Material aus dem Werkstück in den Bereich der ersten Nut,
Figur 8a -
zeigt den in Figur 8 gezeigten Vorgang in einem vergrößerten Ausschnitt,
Figur 9 -
zeigt das Ausformen der ersten und zweiten Nut auf Fertigmaß,
Figur 10 -
zeigt einen anschließenden Formvorgang zur Reduzierung der Wandstärke des Werkstücks.
The invention will be explained in more detail below with reference to the drawings in Figures 5 to 10. Figures 1 to 4 show workpieces according to the prior art, which were explained in the introduction.
FIG. 5 -
shows a workpiece used in the invention in the initial state in side sectional view,
FIG. 6 -
shows the preforming of the first groove,
FIG. 7 -
shows the further molding of the first groove by forming the frontal region of the workpiece,
FIG. 8 -
shows the introduction of material from the workpiece in the region of the first groove,
FIG. 8a -
shows the process shown in Figure 8 in an enlarged section,
FIG. 9
shows the molding of the first and second groove to finished size,
FIG. 10 -
shows a subsequent molding process to reduce the wall thickness of the workpiece.

Zunächst wird, wie in den Figuren 5 bis 7 gezeigt, das in etwa hohlzylindrische Werkstück 7 an einem Dorn 8 fixiert, der in Drehbewegung um die Werkstücklängsachse X versetzt wird. Anschließend wird über eine Vorformrolle 9 im Stirnseitenbereich des Werkstücks 7 eine Sicke vorgeformt. Durch eine Umformeinrichtung 10, 11, die im wesentlichen aus einer in einem Winkel zur Achse X angesetzten Umformrolle 10 zum Angriff an der Innenseite des Werkstücks 7 und einem an der Außenseite des Werkstücks angreifenden Gegenelement (Gegenrolle) 11 besteht, wird der stirnseitige Endbereich 12 des Werkstücks 7 zu einer ersten Nut 1 umgeformt. Hierbei entsteht ein kragenförmiger Abschnitt an der Stirnseite des Werkstücks 7. Diese Umformung erfolgt überwiegend durch einen Stauchvorgang. Die Umformeinrichtung 10, 11 kann dabei so ausgebildet sein, daß im Bereich 12 der Stirnseite 24 der Werkstückwand durch den Stauchvorgang ein schmaler ringförmiger Abschnitt (nicht gezeigt) entsteht, welcher in einem zum Abschluß (d.h. nach Anformen der zweiten Nut 2) erfolgenden Arbeitsgang abgetrennt werden kann. Ein der geschilderten Weise entsprechendes Verfahren zum Anformen einer Nut 1 und zum Abtrennen des ringförmigen Bereichs ist in der Europäischen Patentanmeldung EP 05 008 028.2 (einigereicht am 13.04.2005 ) desselben Anmelders beschrieben.First, as shown in Figures 5 to 7, the approximately hollow cylindrical workpiece 7 is fixed to a mandrel 8, which is set in rotational movement about the workpiece longitudinal axis X. Subsequently, a bead is preformed via a preforming roller 9 in the end face region of the workpiece 7. By a forming device 10, 11, which consists essentially of a formed at an angle to the axis X forming roller 10 for engagement on the inside of the workpiece 7 and an attacking on the outside of the workpiece counter element (counter roller) 11, the front end portion 12 of the workpiece 7 is formed into a first groove 1. This results in a collar-shaped portion on the front side of the workpiece 7. This transformation is predominantly by a compression process. The forming device 10, 11 may be formed so that in the region 12 of the end face 24 of the workpiece wall by upsetting a narrow annular portion (not shown) is formed, which in a conclusion (ie after molding of the second groove 2) successive operation separated can be. One of the described manner corresponding method for molding a groove 1 and for separating the annular region is in the European patent application EP 05 008 028.2 (filed on 13.04.2005 ) of the same applicant.

Nach Anformen der Nut 1 erfolgt, wie in den Figuren 8 und 8a gezeigt, die Ausbildung der zweiten Nut 2. In Figur 8a sind dabei die folgenden Details zu erkennen: Die dortige Kontur 15 zeigt die Form des Werkstücks 7 nach Anformen der ersten Nut 1. Durch die Linie 14 ist die Sollkontur dargestellt, die das Werkstück nach Formen auf Fertigmaß erhalten soll, wobei 14a die spätere Sollform der zweiten Nut 2 andeutet. Die Linie 16 zeigt dabei die Form des Werkstücks 7, nachdem über das Formelement 20 bereits Material 22 in den Bereich 23 verdrängt worden ist.After forming the groove 1, as shown in Figures 8 and 8a, the formation of the second groove 2. In Figure 8a, the following details can be seen: The local contour 15 shows the shape of the workpiece 7 after molding the first groove. 1 The line 14 shows the desired contour which the workpiece is to receive after molding to finished dimension, wherein 14a indicates the later desired shape of the second groove 2. In this case, the line 16 shows the shape of the workpiece 7, after material 22 has already been displaced into the region 23 via the mold element 20.

Im einzelnen erfolgt das Ausformen der zweiten Nut wie folgt: Die Umformeinrichtung 10, 11 wird bei immer noch drehendem Dorn 8 weiterhin am Werkstück 7 gehalten. Eine Formrolle 17, die ein erstes Formelement 20 aufweist, wird nun im Bereich der ersten Nut 1 gegen das Werkstück 7 angesetzt. Das erste Formelement 20 wird dabei, wie dies in Figur 8a (Vergrößerung des Bereichs 13 in Figur 8)genauer zu sehen ist, in die erste Nut 1 gedrückt und in X-Richtung gleichzeitig vorgeschoben, so daß die Kontur 15 des Werkstücks 7 verändert wird und sich die Kontur 16 ausbildet. Hierdurch wird, wie durch die den ursprünglichen Konturverlauf des Werkstücks 7 kennzeichnende Linie 15 angedeutet, Material 22 verdrängt, welches sich, in Bewegungsrichtung des Formelements 20 betrachtet, vor diesem sammelt und den Bereich 23 mit einem Materialvolumen 19 zumindest teilweise ausfüllt. Dieses Materialvolumen 19 bildet die Trennwand zwischen der ersten Nut 1 und der zweiten Nut 2. Das Materialvolumen 19 wird durch das Element 11 daran gehindert, weiter in die erste Nut 1 in Richtung der Stirnseite des Werkstücks 7 hineinzufließen, wodurch die linke, der Stirnseite des Werkstücks 7 abgewandte Schulter 1a der Nut 1 gleichzeitig ihre Fertigmaße erhält. Ggf. kann dieser Vorgang des Verdrängens von Material 22 in den Raum 23 durch das Formelement 20 wiederholt werden, bis das Material den Bereich 23 hinter dem ersten Formelement 20 (nahezu) vollständig gefüllt hat. Hierzu steht im Werkstück 7 das gesamte über die Sollinie 14 überstehende Material zur Verfügung. Das so geschaffene Materialvolumen 19 bildet dann die Wand zwischen der ersten Nut 1 und der hierdurch gebildeten zweiten Nut 2.In detail, the shaping of the second groove is as follows: The shaping device 10, 11 is still held on the workpiece 7 while the mandrel 8 is still rotating. A forming roller 17, which has a first mold element 20, is now placed in the region of the first groove 1 against the workpiece 7. The first mold element 20 is thereby, as can be seen more precisely in FIG. 8a (enlargement of the region 13 in FIG. 8), pressed into the first groove 1 and simultaneously advanced in the X direction, so that the contour 15 of the workpiece 7 is changed and the contour 16 is formed. As a result, as indicated by the line 15 characterizing the original contour of the workpiece 7, material 22 is displaced, which, viewed in the direction of movement of the element 20, collects before it and at least partially fills the area 23 with a material volume 19. This material volume 19 forms the partition wall between the first groove 1 and the second groove 2. The material volume 19 is prevented by the element 11 from flowing further into the first groove 1 in the direction of the end face of the workpiece 7, whereby the left, the end face of the Workpiece 7 facing away from the shoulder 1a of the groove 1 at the same time receives their finished dimensions. Possibly. For example, this process of displacing material 22 into space 23 may be repeated by molding element 20 until the material has (almost) completely filled area 23 behind first molding element 20. For this purpose, the entire material projecting beyond the nominal line 14 is available in the workpiece 7. The material volume 19 thus created then forms the wall between the first groove 1 and the second groove 2 formed thereby.

Nun wird, wiederum unter Halten der Umformeinrichtung 10, 11 am Werkstück 7, mittels eines zweiten Formelements 18, welches bevorzugt an der Rolle 17 dem ersten Formelement 20 gegenüberliegend angeordnet ist, die zweite Nut 2 auf Fertigmaß ausgeformt. Falls noch nicht geschehen, kann in diesem Schritt weiteres Material in den Raum 23 hineingedrängt werden, so daß dieser schließlich vollkommen ausgefüllt ist. Das zweite Formelement 18 weist eine der gewünschten Form der zweiten Nut 2 entsprechende Profilierung auf. Dieser Vorgang ist in Figur 9 dargestellt.Now, again holding the forming device 10, 11 on the workpiece 7, by means of a second mold element 18, which is preferably arranged on the roller 17 opposite the first mold element 20, the second groove 2 is formed to finished size. If not already done, in this step further material can be forced into the space 23, so that it is finally completely filled. The second mold element 18 has a profile corresponding to the desired shape of the second groove 2. This process is shown in FIG.

Schließlich kann in einer weiteren Aufspannung, wie in Figur 10 gezeigt, die Wandstärke des Werkstücks 7 in dem an die zweite Nut angrenzenden Bereich durch eine Drückwalze 21 in einem anschließenden Drückwalzvorgang auf Sollstärke reduziert werden. Die resultierende Wandstärke ist durch die Linie 14 angedeutet.Finally, in a further clamping, as shown in FIG. 10, the wall thickness of the workpiece 7 in the region adjoining the second groove can be reduced to the desired thickness by a pressure roller 21 in a subsequent flow-forming operation. The resulting wall thickness is indicated by the line 14.

Claims (6)

  1. Method for forming a second groove (2) in the region (12) of the front end of a workpiece (7), in particular a wheel rim, wherein the workpiece (7) is rotated about its longitudinal axis (X) and a first groove (1) is moulded in by forming the region (12) of the front end of the workpiece (7),
    characterised by
    formation of the second groove (2) by introducing material (22) from the wall of the workpiece (7) into a region (19) of the first groove (1).
  2. Method according to claim 1,
    characterised in that
    the material (22) is introduced into the region (19) by pressing and pushing a first mould element (20) against the wall of the workpiece (7) in the first groove (1).
  3. Method according to either claim 1 or claim 2,
    characterised in that
    the first groove (1) is formed to its finished size using a forming means (10, 11).
  4. Method according to claim 1, 2 or 3,
    characterised in that
    during the introduction process, the first mould element (20) is pressed and pushed into the first groove (1), such that displaced material (22) accumulates on the side, nearer the end face of the workpiece (7), of the first mould element (20).
  5. Method according to any one of the preceding claims,
    characterised in that
    following the introduction process, the second groove (2) is formed to its finished size using a second mould element (18).
  6. Method according to any one of the preceding claims,
    characterised in that
    the introduction process is repeated.
EP05008381A 2005-04-18 2005-04-18 Method for forming a groove Not-in-force EP1714714B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT05008381T ATE366154T1 (en) 2005-04-18 2005-04-18 METHOD FOR FORMING A GROOVE
EP05008381A EP1714714B1 (en) 2005-04-18 2005-04-18 Method for forming a groove
DE502005000979T DE502005000979D1 (en) 2005-04-18 2005-04-18 Method of forming a groove

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05008381A EP1714714B1 (en) 2005-04-18 2005-04-18 Method for forming a groove

Publications (2)

Publication Number Publication Date
EP1714714A1 EP1714714A1 (en) 2006-10-25
EP1714714B1 true EP1714714B1 (en) 2007-07-04

Family

ID=34935287

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05008381A Not-in-force EP1714714B1 (en) 2005-04-18 2005-04-18 Method for forming a groove

Country Status (3)

Country Link
EP (1) EP1714714B1 (en)
AT (1) ATE366154T1 (en)
DE (1) DE502005000979D1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011117034B4 (en) 2011-10-27 2015-09-17 Ronal Ag Apparatus and method for producing a metal wheel

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2053005B2 (en) * 1970-10-28 1973-05-30 Leifeld & Co, 4730 Ahlen METHOD AND DEVICE FOR MANUFACTURING ANGLED SHOULDER RIMS FOR TRUCKS
WO1992000216A1 (en) * 1990-06-28 1992-01-09 Titan Wheel International, Inc. Wheel rim and method of making
GB2246746A (en) * 1990-08-10 1992-02-12 Gkn Sankey Ltd Wheel rim assembly

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Publication number Publication date
EP1714714A1 (en) 2006-10-25
DE502005000979D1 (en) 2007-08-16
ATE366154T1 (en) 2007-07-15

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