Claims
- 1. A method of making a rim (2) of sheet metal for a vehicle wheel, comprising:
obtaining a rectangular geometric shape from a blank of sheet metal; bending the blank to obtain a cylindrical hoop (14); welding the two free edges of the hoop (14) together; performing at least one cylindrical flow spinning operation to obtain a profile of given thickness of the hoop (20, 25, 26), wherein said hoop has zones of constant thickness adjacent to zones of variable thickness; making a cut perpendicular to the axis of the hoop (20, 25, 26) out of at least one lateral edge of the hoop (20, 25, 26); profiling the hoop (20, 25, 26) to obtain the rim (2); and setting the size of the said rim (2).
- 2. The method according to claim 1, wherein said rim (2) has an inner side and an outer side and wherein the lateral edge of the hoop (20, 25, 26) corresponding to the inner side of the rim (2) is cut out.
- 3. The method according to claim 1, wherein the two lateral edges of the hoop (20, 25, 26) are cut out.
- 4. The method according to claim 1, wherein a part of the zone not subject to flow spinning (21, 27, 28) is cut out at the edge of the hoop (20, 25, 26).
- 5. The method according to claim 1, wherein at least part of the zone subject to flow spinning is cut out at the edge of the hoop (20, 25, 26).
- 6. The method according to claim 1, wherein the plane of cutting out of an edge of the hoop (20, 25, 26) is defined with reference to a characteristic point on the profile of the hoop (20, 25, 26) after the flow spinning operation.
- 7. The method according to claim 6, wherein said characteristic point corresponds to a point of transition between a zone of constant thickness and a zone of variable thickness.
- 8. The method according to claim 1, wherein the step of setting the size of the said hoop (20, 25, 26) is performed after the two free edges of the hoop (20, 25, 26) have been welded together.
- 9. The method according to claim 1, further comprising machining the zone of fitting the rim after having the set the size of the said rim (2).
- 10. A vehicle wheel comprising a disk and a rim made according to the process of claim 1.
Priority Claims (1)
Number |
Date |
Country |
Kind |
FR 00/14675 |
Nov 2000 |
FR |
|
CROSS REFERENCE TO RELATED APPLICATIONS
[0001] This is a continuation of international application No. PCT/EP 01/12601, filed Oct. 31, 2001, published in French as international publication No. WO 02/38303 on May 16, 2002 and claiming priority to French application No. 00/14675 filed Nov. 13, 2000, the entire contents of each of which are incorporated by reference.
Continuations (1)
|
Number |
Date |
Country |
Parent |
PCT/EP01/12601 |
Oct 2001 |
US |
Child |
10437555 |
May 2003 |
US |