EP1335805A1 - Procede de fabrication d'une jante de roue de vehicule - Google Patents
Procede de fabrication d'une jante de roue de vehiculeInfo
- Publication number
- EP1335805A1 EP1335805A1 EP01980534A EP01980534A EP1335805A1 EP 1335805 A1 EP1335805 A1 EP 1335805A1 EP 01980534 A EP01980534 A EP 01980534A EP 01980534 A EP01980534 A EP 01980534A EP 1335805 A1 EP1335805 A1 EP 1335805A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ferrule
- rim
- thickness
- shell
- edge
- 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
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
- B21D53/30—Making other particular articles wheels or the like wheel rims
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49481—Wheel making
- Y10T29/49492—Land wheel
- Y10T29/49524—Rim making
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49481—Wheel making
- Y10T29/49492—Land wheel
- Y10T29/49524—Rim making
- Y10T29/49531—Roller forming
Definitions
- the invention relates to vehicle wheels and in particular an improved method for producing a wheel rim.
- US Patent 5,579,578 discloses a method for producing a wheel rim for a vehicle comprising the following operations:
- the operations of fluotoumage of the ferrule of a wheel rim are however likely to produce ferrules whose axial width can vary around their circumference.
- These variations and faults can cause instabilities during the following operations of rolling the ferrule, they can also make it more difficult, locally, to hook the wheel balancing masses.
- the invention relates to an improved method of manufacturing a wheel rim which significantly reduces the dispersion of manufacturing wheel rims. This process also makes it possible to obtain wheels of reduced weight.
- the method of manufacturing a sheet metal rim of a wheel for a vehicle according to the invention comprises the following steps:
- a cut is made normal to the axis of the ferrule at least one lateral edge of the ferrule; - the ferrule is profiled to obtain the rim; and
- the normal cutting operation at the axis of the ferrule of at least one lateral edge of the ferrule after the cylindrical flow forming operation has the advantage of eliminating all or part of the excess thickness of the two ends of the completed rim, this reduces the final weight of the rim. It should be noted that the reduction in thickness during a flow forming operation cannot be applied to the two lateral edges of the shell. This thickness is therefore necessarily identical to the thickness of the starting metal blank. This operation also makes it possible to guarantee that the edge of the ferrule is flat and that this plane is orthogonal to the axis of this same ferrule.
- the cutting operation can be carried out on the interior side of the rim (that is to say on the side intended to be disposed towards the interior of the vehicle). This has the advantage of reducing the thickness of the inner hook of the rim, which is less exposed than the outer hook to impact.
- the cutting operation can also relate to the two lateral edges of the shell. The advantage is then to maximize the reduction in weight of the rim and to obtain an excellent flatness of the lateral edges of the ferrule as well as a remarkable regularity of the axial width of the ferrule.
- the cutting plane of an edge of the ferrule is defined by taking as a reference a point characteristic of the profile of the ferrule after the operation.
- This characteristic point can in particular be a transition point between an area of constant thickness and an area of variable thickness.
- FIG. 1 is a section of a conventional wheel with assembly under the mounting groove
- FIG. 2 shows the different steps of a method of producing a wheel according to the invention
- FIG. 6 shows schematically a first type of defect encountered after the flow forming operations
- - Figure 7 shows schematically a second type of defect encountered after the flow forming operations
- - Figure 8 shows schematically a third type of defect encountered after the flow forming operations
- FIG. 9 shows schematically a detail of a first ferrule corresponding to the rim hook after the fluotou age operations and the ' rim part resulting therefrom after profiling;
- FIG. 10 schematically illustrates a detail of a second ferrule corresponding to the rim hook after the fluotoumage operations and the resulting rim part after profiling
- FIG. 11 schematically illustrates a detail of a third ferrule corresponding to the rim hook after the fluotoumage operations and the resulting rim part after profiling.
- Figure 1 a partial section of a conventional steel sheet wheel.
- This wheel 1 comprises a rim 2 and a disc 3.
- This figure illustrates the median plane of the wheel or plane P.
- This plane is disposed at equal distance from the two hooks of the rim.
- the axially interior and exterior positions are defined by taking as a reference the median plane P.
- the rim has an external hook 4, an external seat 5, a safety boss or “hump” 6, a mounting groove 7, an internal seat 9 and an internal hook 10.
- the disc 3 comprises a hub bearing 11, a zone transition 12 and an assembly edge 13. The assembly is carried out by fitting under the mounting groove 7.
- This figure also shows the axis of rotation A of the wheel.
- FIG. 2 A method of producing the rims of the wheels according to the invention is illustrated in FIG. 2.
- a blank of metal sheet (not shown) of steel, aluminum or alloys, is bent to give it a shape generally ferrule cylindrical 14 with two free edges.
- the shell 14 is welded by a spark welding, resistance or other process.
- This ferrule 14 has a constant thickness ( Figure 3).
- the ferrule 14 is then preferably calibrated in extension using a calibration tool shown diagrammatically in FIG. 4.
- the expansion is obtained by the displacement of a cam 15 which separates sectors 16 around which is installed the ferrule 14.
- FIG. 5 illustrates the next step which consists in obtaining, by cylindrical flow forming, the flat profile sought for the rims according to the invention.
- the fluotoumage process used is reverse fluotoumage.
- the ferrule 14 is mounted on a mandrel 17 and bears against a wall of the system 18 for blocking the ferrule 14.
- the mandrel 17 is then rotated and at least two knurls 19 come to roll on the radially outer surface of the ferrule 14 in areas whose thickness must be reduced.
- the rollers 19 are moved axially in the direction of the axis X by applying a radial and tangential force so that the flow of material flows in the direction of Y. This material flow takes place in the opposite direction movement of the knurls 19.
- FIG. 5 schematically illustrates the ferrule 20 of variable profile obtained.
- FIG. 6 illustrates a first defect likely to be presented by the shell 20 after the fluotoumage operations.
- This defect corresponds' to local variations in axial width of the ring 20. These changes are particularly observed driving side of the wheels.
- the edge 24 is not perfectly cylindrical but has local variations in axial position. These variations are automatically reflected in the rim profile. It is thus possible to have variations in the profile of the edge of the hooks which can make it difficult locally to place or fix the balancing weights. Carrying out an operation of cutting the two edges of the ferrule after the flow-forming operations makes it possible to guarantee a constant width of the ferrule at all points thereof.
- FIG. 7 illustrates a second defect which can be observed: a defect of perpendicularity between the plane defined by the edge 24 of the ferrule 20 and that defined by the axis of the ferrule 20.
- the angle ⁇ between these two planes can reach 1 to 2 degrees.
- Figure 8 illustrates a third fault.
- a partial profile of two ferrules 25 and 26 are substantially identical except for the length of the non-fluotoumée zones on the side abutting against the mandrel (on the left side of the figure).
- These zones 27 for the shell 25 and 28 for the shell 26 differ by a length d. This difference is due to a variation in thickness of the starting blank between the two ferrules.
- the ferrule 26 has a starting blank whose thickness is greater than that of the ferrule 25.
- the profile of the two ferrules after flow forming is substantially identical since the relative displacement of the rollers is linked to the axial increase of the fluotoumées zones.
- the effectively flow-turned area is axially smaller for a ferrule of greater thickness.
- a variation in thickness of 0.05 mm can cause a variation in axial width of the non-flow-turned area on the abutment side of 5 mm.
- This problem is resolved by taking as a reference a characteristic point R of the profile of the shell after the flow-forming operations to define the position of the planes Di and D 2 for cutting the edges of the shell.
- This point R is advantageously taken adjacent to a zone of variable thickness and a zone of fixed thickness as illustrated in FIG. 8.
- a profile control system is used to determine the position of the cutting plane or two cutting planes as appropriate. It should be noted that it is not possible to take as a reference the edge of the ferrule on the attack side of the rollers because it is this edge which is most sensitive to variations and undulations as has already been indicated.
- FIG. 9 (a) schematically illustrates the profile of one of the ends of the shell 20 after the fluotoumage operation.
- This profile comprises an outer non-flow-turned area 21 of axial width L m i n j and of thickness e corresponding to the thickness of the starting blank, a transition area 22 in which the thickness gradually decreases and an area 23 of thickness and reduced.
- Figure 9 (b) shows the profile of the outer edge of the resulting rim after the rolling profiling operations.
- the first zone 21 corresponds to the rim 31 of the rim hook 4, the zone of reduced thickness 23 at the seat 5 of the rim and at the start 29 of the hook and the transition zone 22 to the intermediate zone 30.
- the hook 4 of the rim thus has three adjacent zones: the zone 29 of reduced thickness identical to that of the seat 5, the transition zone 30 whose thickness gradually increases and the zone 31 of thickness e identical to that of the blank of departure.
- the hook 4 of Figure 9 (b) thus has an extra thickness which may or may not be necessary depending on the type of wheel concerned.
- Figures 10 and 11 show two forms of hooks resulting from two different cutting operations.
- the cutting plane D is located axially at a distance L from the junction point between the non-flow-turned zone 21 of thickness e and the transition zone 22 of variable thickness between e and ei.
- the hook 4 has, after the cutting operation, a reduced area 32 of thickness e.
- the rim thus has a reduced weight.
- the cutting plane is located in the zone 23, which has undergone a fluotou age to reduce its thickness from e to ei.
- the hook resulting from the profiling operations therefore has an identical thickness over its entire length.
- the weight reduction is then maximum. It should be noted that to improve the clarity of FIGS. 9 to 11, their scale in a direction perpendicular to the axis of the ferrule is five times greater than the scale in the direction of the axis of the ferrule.
- the cutting of the edge of the ferrule can be carried out by any suitable process, in particular turning or cutting with a wheel.
- the rims thus obtained are calibrated and then the casing is made with suitable discs.
- Figure 2 includes a step of machining the casing area of the rim. This step is optional. The purpose of this step is to perfect the cylindrical geometry of the fitting zone in the case of a sensitive assembly.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Testing Of Balance (AREA)
- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
- Forging (AREA)
- Heat Treatment Of Articles (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Tyre Moulding (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0014675A FR2816532B1 (fr) | 2000-11-13 | 2000-11-13 | Procede de fabrication d'une jante de roue de vehicule |
FR0014675 | 2000-11-13 | ||
PCT/EP2001/012601 WO2002038303A1 (fr) | 2000-11-13 | 2001-10-31 | Procede de fabrication d'une jante de roue de vehicule |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1335805A1 true EP1335805A1 (fr) | 2003-08-20 |
EP1335805B1 EP1335805B1 (fr) | 2004-10-13 |
Family
ID=8856459
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01980534A Expired - Lifetime EP1335805B1 (fr) | 2000-11-13 | 2001-10-31 | Procede de fabrication d'une jante de roue de vehicule |
Country Status (9)
Country | Link |
---|---|
US (1) | US6971173B2 (fr) |
EP (1) | EP1335805B1 (fr) |
JP (1) | JP4653932B2 (fr) |
AT (1) | ATE279276T1 (fr) |
AU (1) | AU2002212354A1 (fr) |
DE (1) | DE60106477T2 (fr) |
ES (1) | ES2230375T3 (fr) |
FR (1) | FR2816532B1 (fr) |
WO (1) | WO2002038303A1 (fr) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4076451B2 (ja) * | 2003-01-28 | 2008-04-16 | トピー工業株式会社 | 不等厚リム用リム素材、不等厚リム、不等厚リムの製造方法 |
ITBS20030023A1 (it) * | 2003-03-04 | 2004-09-05 | Tecnoforming S P A | Metodo di realizzazione del canale per ruote in lega d'alluminio. |
JP3933143B2 (ja) * | 2004-04-28 | 2007-06-20 | 株式会社ワーク | ホイールの製造方法。 |
KR20110053224A (ko) | 2008-11-18 | 2011-05-19 | 토피 고교 가부시키가이샤 | 통 형상 부재의 제조 방법 |
DE112011100571T5 (de) | 2010-02-17 | 2012-12-13 | Topy Kogyo Kabushiki Kaisha | Verfahren zum Herstellen einer Radfelge für ein Fahrzeug |
CN105215635A (zh) * | 2015-10-16 | 2016-01-06 | 江苏新创雄铝制品有限公司 | 一种冷加工无缝铝合金轮毂的制备方法 |
DE102016117510A1 (de) * | 2016-09-16 | 2018-03-22 | Maxion Wheels Germany Holding Gmbh | Verfahren zur Herstellung von Steilschulterfelgen, Steilschulterfelge und Fahrzeugrad hiermit für Nutzfahrzeuge |
KR101949029B1 (ko) * | 2017-08-08 | 2019-05-09 | 주식회사 포스코 | 자동차용 휠 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3129496A (en) * | 1959-12-08 | 1964-04-21 | Darwin S Cox | Method of producing improved vehicle wheels |
DE2624872C3 (de) * | 1976-06-03 | 1988-03-24 | Bohner & Köhle GmbH & Co, 7300 Eßlingen | Verfahren zum Herstellen von ungeteilten Felgen |
US4185370A (en) * | 1978-02-10 | 1980-01-29 | Kelsey Hayes Co. | Method of making a wheel rim |
US4554810A (en) * | 1984-04-02 | 1985-11-26 | Motor Wheel Corporation | Draw-spinning of integral vehicle wheel rim and disc segments |
US5579578A (en) * | 1993-10-27 | 1996-12-03 | Hayes Wheels International, Inc. | Method for producing a rim for a vechicle wheel |
US5435633A (en) * | 1994-01-03 | 1995-07-25 | Hayes Wheels International, Inc. | Aluminum full face vehicle wheel |
WO1996025257A1 (fr) * | 1995-02-13 | 1996-08-22 | Hess Engineering, Inc. | Procede de façonnage de jantes de vehicule |
US5664329A (en) * | 1995-11-30 | 1997-09-09 | Cosma International Inc. | Method for fabricating a one-piece metal vehicle wheel |
JP3669751B2 (ja) * | 1996-01-25 | 2005-07-13 | トピー工業株式会社 | 片側フランジレスホイールリムの製造方法とその装置 |
US5832609A (en) * | 1996-04-05 | 1998-11-10 | Hayes Lemmerz International, Inc. | Method for producing a variable thickness rim for a vehicle wheel |
US6536111B1 (en) * | 1996-07-24 | 2003-03-25 | Hayes Lemmerz International, Inc. | Process for spin forming a vehicle wheel |
US6189357B1 (en) * | 1996-10-29 | 2001-02-20 | Hayes Lemmerz International, Inc. | Apparatus and process for forming vehicle wheel rims |
US6244668B1 (en) * | 1998-10-30 | 2001-06-12 | Specialty Blanks, Inc. | Cold formed light alloy automotive wheel rim |
DE19924062A1 (de) * | 1999-05-26 | 1999-12-09 | Leico Werkzeugmaschb Gmbh & Co | Verfahren und Vorrichtung zum Drückwalzen |
-
2000
- 2000-11-13 FR FR0014675A patent/FR2816532B1/fr not_active Expired - Fee Related
-
2001
- 2001-10-31 ES ES01980534T patent/ES2230375T3/es not_active Expired - Lifetime
- 2001-10-31 AU AU2002212354A patent/AU2002212354A1/en not_active Abandoned
- 2001-10-31 EP EP01980534A patent/EP1335805B1/fr not_active Expired - Lifetime
- 2001-10-31 DE DE60106477T patent/DE60106477T2/de not_active Expired - Lifetime
- 2001-10-31 AT AT01980534T patent/ATE279276T1/de not_active IP Right Cessation
- 2001-10-31 JP JP2002540872A patent/JP4653932B2/ja not_active Expired - Lifetime
- 2001-10-31 WO PCT/EP2001/012601 patent/WO2002038303A1/fr active IP Right Grant
-
2003
- 2003-05-13 US US10/437,555 patent/US6971173B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO0238303A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP1335805B1 (fr) | 2004-10-13 |
DE60106477D1 (de) | 2004-11-18 |
JP4653932B2 (ja) | 2011-03-16 |
US6971173B2 (en) | 2005-12-06 |
US20040016124A1 (en) | 2004-01-29 |
ATE279276T1 (de) | 2004-10-15 |
FR2816532B1 (fr) | 2003-01-24 |
JP2004512963A (ja) | 2004-04-30 |
WO2002038303A1 (fr) | 2002-05-16 |
ES2230375T3 (es) | 2005-05-01 |
AU2002212354A1 (en) | 2002-05-21 |
DE60106477T2 (de) | 2006-02-02 |
FR2816532A1 (fr) | 2002-05-17 |
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