EP0072296A2 - Method and apparatus for manufacturing vehicle-wheels called "style", and vehicle-wheels made by this method - Google Patents
Method and apparatus for manufacturing vehicle-wheels called "style", and vehicle-wheels made by this method Download PDFInfo
- Publication number
- EP0072296A2 EP0072296A2 EP82401413A EP82401413A EP0072296A2 EP 0072296 A2 EP0072296 A2 EP 0072296A2 EP 82401413 A EP82401413 A EP 82401413A EP 82401413 A EP82401413 A EP 82401413A EP 0072296 A2 EP0072296 A2 EP 0072296A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- wheel
- wheels
- style
- vehicle
- rim
- 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.)
- Withdrawn
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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
- B21D53/00—Making other particular articles
- B21D53/26—Making other particular articles wheels or the like
Definitions
- the present invention overcomes this drawback by creating a method of manufacturing so-called “style” wheels by creeping the metal in cavities of a mold adapted to the desired shape in order to obtain a wheel having the desired shape.
- the invention also extends to the wheel obtained by this process.
- the method is characterized by the fact that after having roughened the wheel by stamping with a press from a flat disc, the flange of the wheel is finished by creeping of the metal in the cavities. 'A suitable mold then the rim on which the tire is mounted is obtained by splitting, stamping, magnetoforming.
- Fig. 1 is a plan view of the disc from which the so-called “style” wheel will be produced.
- Fig. 2 is a side elevation, partly in section, of the wheel during manufacture.
- Fig. 3 is a partial plan of the style wheel, obtained by the method of the invention.
- the periphery of the wheel forms a crown 3 which is then, for example, cut into two parts 3a, 3b by splitting and, when these two half-discs forming between them a circular V are obtained, they are subjected to processes stamping and magnetoforming, for example, to finally obtain the rim on which the tire can be mounted.
- stamping with the press then by creep, the actual rim 2 is obtained having extra thicknesses 10, 11, 12 as well as connecting zones 13, 14 giving a wheel called "style".
- the use of the creep method makes it possible, by using a light alloy of good mechanical strength, to obtain a wheel of very low weight which can be, for example, one third of the weight of a wheel obtained by prior methods.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Forging (AREA)
Abstract
Description
Actuellement, les véhicules automobiles sont de plus en plus équipés de roues dites "style" mais ces roues sont fabriquées principalement par moulage avec ensuite un usinage important ou alors par fonçage de billettes avec filage de la jante destinée à supporter le pneumatique.Currently, motor vehicles are increasingly equipped with so-called "style" wheels, but these wheels are manufactured mainly by molding with subsequent heavy machining or else by sinking of billets with spinning of the rim intended to support the tire.
Les deux procédés énoncés ci-dessus ne permettent pas d'obtenir des roues légères car, en ce qui concerne le procédé par moulage, les caractéristiques du métal nécessaires à l'emploi de ce procédé n'ont qu'un allongement inférieur à 5 % ce qui est extrêmement faible et nécessite par suite l'emploi d'une masse métallique importante. Pour l'autre procédé par filage, on se trouve devant le cas inverse : le métal, pour ce procédé, a un bon allongement mais une résistance limitée sinon très limitée et, de ce fait, l'épaisseur de la jante ne semble pas pouvoir dans l'état actuel des connaissances techniques, être inférieure à 5 mm,ce qui revient donc au même et, on est amené à utiliser une masse métallique importante.The two processes set out above do not make it possible to obtain light wheels because, as regards the molding process, the characteristics of the metal necessary for the use of this process have only an elongation of less than 5%. which is extremely low and therefore requires the use of a large metallic mass. For the other spinning process, we are faced with the opposite case: the metal, for this process, has a good elongation but a limited resistance if not very limited and, therefore, the thickness of the rim does not seem to be able in the current state of technical knowledge, be less than 5 mm, which therefore amounts to the same and, we are led to use a large metallic mass.
Or, du fait de la masse importante de la roue, le poids de l'ensemble, roue plus pneumatique, est considérable et, par conséquent, présente une inertie certaine provoquant évidemment une consommation d'énergie,ce qui est contraire aux recherches actuelles.However, due to the large mass of the wheel, the weight of the assembly, more pneumatic wheel, is considerable and, consequently, has a certain inertia obviously causing energy consumption, which is contrary to current research.
La présente invention remédie à cet inconvénient en créant un procédé de fabrication de roues dites "style" par fluage du métal dans des cavités d'un moule adapté à la forme désirée afin d'obtenir une roue présentant la forme recherchée.The present invention overcomes this drawback by creating a method of manufacturing so-called "style" wheels by creeping the metal in cavities of a mold adapted to the desired shape in order to obtain a wheel having the desired shape.
L'invention s'étend également à la roue obtenue par ce procédé.The invention also extends to the wheel obtained by this process.
Conformément à l'invention, le procédé se caractérise par le fait qu'après avoir ébauché la roue par estampage à la presse à partir d'un disque plat on procède à la finition du flasque de la roue par fluage du métal dans les cavités d'un moule approprié puis la jante sur laquelle est montée le pneumatique est obtenue par fendage, emboutissage, magnétoformage.According to the invention, the method is characterized by the fact that after having roughened the wheel by stamping with a press from a flat disc, the flange of the wheel is finished by creeping of the metal in the cavities. 'A suitable mold then the rim on which the tire is mounted is obtained by splitting, stamping, magnetoforming.
Diverses autres caractéristiques de l'invention ressortent d'ailleurs de la description détaillée qui suit.Various other characteristics of the invention will also emerge from the detailed description which follows.
Une forme de réalisation de l'objet de l'invention est représentée, à titre d'exemple, au dessin annexé.An embodiment of the object of the invention is shown, by way of example, in the accompanying drawing.
La fig. 1 est une vue en plan du disque à partir duquel sera fabriquée la roue dite "style".Fig. 1 is a plan view of the disc from which the so-called "style" wheel will be produced.
La fig. 2 est une élévation latérale, partie en coupe, de la roue en cours de fabrication.Fig. 2 is a side elevation, partly in section, of the wheel during manufacture.
La fig. 3 est un plan partiel de la roue à style, obtenue par le procédé de l'invention.Fig. 3 is a partial plan of the style wheel, obtained by the method of the invention.
A la fig. 1, il est montré un disque coupé 1 d'une épaisseur suffisante pour la réalisation d'une roue à style. On procède ensuite, à partir de ce disque découpé, à l'estampage du flasque 2 afin d'obtenir, à la presse, les reliefs formant les décors de style puis, par fluage du métal dans des cavités prévues à l'avance dans un moule, on obtient la forme décorative recherchée.In fig. 1, there is shown a
Comme le montre la fig. 2, la périphérie de la roue forme une couronne 3 qui est ensuite, par exemple, découpée en deux parties 3a, 3b par fendage et, lorsque ces deux demi-disques formant entre eux un V circulaire sont obtenus, ils sont soumis à des procédés d'emboutissage et de magnétoformage, par exemple, pour obtenir finalement la jante sur laquelle peut être monté le pneumatique. Ainsi, d'abord par emboutissage à la presse puis par fluage, on obtient la jante proprement dite 2 présentant des surépaisseurs 10, 11, 12 ainsi que des zones de liaison 13, 14 donnant une roue dite "style". L'emploi du procédé par fluage permet en employant un alliage léger de bonne résistance mécanique d'obtenir une roue d'un poids très faible qui peut être par exemple d'un tiers du poids d'une roue obtenue par des procédés antérieurs.As shown in fig. 2, the periphery of the wheel forms a
L'invention n'est pas limitée à la forme de réalisation représentée et décrite en détail car diverses modifications peuvent y être apportées sans sortir de son cadre.The invention is not limited to the embodiment shown and described in detail since various modifications can be made without departing from its scope.
Claims (3)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8115039A FR2510439A1 (en) | 1981-08-03 | 1981-08-03 | METHOD FOR MANUFACTURING WHEELS OF VEHICLES CALLED "STYLE", TOOLS FOR IMPLEMENTING THE METHOD AND WHEEL OBTAINED BY THIS PROCESS |
FR8115039 | 1981-08-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0072296A2 true EP0072296A2 (en) | 1983-02-16 |
EP0072296A3 EP0072296A3 (en) | 1984-08-08 |
Family
ID=9261111
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP82401413A Withdrawn EP0072296A3 (en) | 1981-08-03 | 1982-07-29 | Method and apparatus for manufacturing vehicle-wheels called "style", and vehicle-wheels made by this method |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0072296A3 (en) |
DE (1) | DE72296T1 (en) |
FR (1) | FR2510439A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008034564A1 (en) * | 2006-09-20 | 2008-03-27 | Gm Global Technology Operations, Inc. | Method for producing a wheel disc |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3672021A (en) * | 1969-02-20 | 1972-06-27 | Fuchs Otto | Method of making wheels |
US3956451A (en) * | 1971-10-14 | 1976-05-11 | Motor Wheel Corporation | Method of making an ornamental styled wheel |
DE2615076A1 (en) * | 1975-04-09 | 1976-10-21 | Forgeal | PROCESS FOR MANUFACTURING ONE-PIECE WHEELS BY DIE FORGING AND FLOW TURNING |
DE2721577A1 (en) * | 1977-05-13 | 1978-11-16 | Suedrad Gmbh | Deep drawing tool for making automobile wheels - has sharp edge on central boss of punch and die to avoid need for hub-cap |
DE2745508A1 (en) * | 1977-10-10 | 1979-04-12 | Hans J Ing Grad Wissner | Light alloy wheel for motorcycle - has split and profiled edge reinforced by weld at split bottom |
GB2063722A (en) * | 1979-11-30 | 1981-06-10 | Letang & Remy Ets | Method for manufacturing vehicle wheels and wheels obtained thereby |
GB2074918A (en) * | 1980-04-29 | 1981-11-11 | Letang & Remy Ets | Method for manufacturing vehicle-wheels by a magneto-forming process |
-
1981
- 1981-08-03 FR FR8115039A patent/FR2510439A1/en active Pending
-
1982
- 1982-07-29 EP EP82401413A patent/EP0072296A3/en not_active Withdrawn
- 1982-07-29 DE DE1982401413 patent/DE72296T1/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3672021A (en) * | 1969-02-20 | 1972-06-27 | Fuchs Otto | Method of making wheels |
US3956451A (en) * | 1971-10-14 | 1976-05-11 | Motor Wheel Corporation | Method of making an ornamental styled wheel |
DE2615076A1 (en) * | 1975-04-09 | 1976-10-21 | Forgeal | PROCESS FOR MANUFACTURING ONE-PIECE WHEELS BY DIE FORGING AND FLOW TURNING |
DE2721577A1 (en) * | 1977-05-13 | 1978-11-16 | Suedrad Gmbh | Deep drawing tool for making automobile wheels - has sharp edge on central boss of punch and die to avoid need for hub-cap |
DE2745508A1 (en) * | 1977-10-10 | 1979-04-12 | Hans J Ing Grad Wissner | Light alloy wheel for motorcycle - has split and profiled edge reinforced by weld at split bottom |
GB2063722A (en) * | 1979-11-30 | 1981-06-10 | Letang & Remy Ets | Method for manufacturing vehicle wheels and wheels obtained thereby |
GB2074918A (en) * | 1980-04-29 | 1981-11-11 | Letang & Remy Ets | Method for manufacturing vehicle-wheels by a magneto-forming process |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008034564A1 (en) * | 2006-09-20 | 2008-03-27 | Gm Global Technology Operations, Inc. | Method for producing a wheel disc |
Also Published As
Publication number | Publication date |
---|---|
DE72296T1 (en) | 1983-11-24 |
FR2510439A1 (en) | 1983-02-04 |
EP0072296A3 (en) | 1984-08-08 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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17P | Request for examination filed |
Effective date: 19820730 |
|
AK | Designated contracting states |
Designated state(s): AT BE CH DE GB IT LI LU NL SE |
|
ITCL | It: translation for ep claims filed |
Representative=s name: STUDIO ING. ALFREDO RAIMONDI |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: ELERMETAL |
|
TCNL | Nl: translation of patent claims filed | ||
TCAT | At: translation of patent claims filed | ||
DET | De: translation of patent claims | ||
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
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AK | Designated contracting states |
Designated state(s): AT BE CH DE GB IT LI LU NL SE |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 19850429 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: MUELLER, R. |