EP 0879105 B1 20010207 - METHOD FOR MAKING A WHEEL FOR A LAND MOTOR VEHICLE
Title (en)
METHOD FOR MAKING A WHEEL FOR A LAND MOTOR VEHICLE
Title (de)
VERFAHREN ZUM HERSTELLEN EINES MOTORKRAFTFAHRZEUGRADES
Title (fr)
PROCEDE DE REALISATION D'UNE ROUE POUR VEHICULE TERRESTRE A MOTEUR
Publication
Application
Priority
- FR 9700243 W 19970207
- FR 9601526 A 19960208
Abstract (en)
[origin: WO9728914A1] A method for making a wheel for a land motor vehicle, comprising a wheel disc and a substantially cylindrical wheel rim. The wheel disc consists of a substantially planar central portion with a bearing for centring and fixing the wheel on an axle hub, a substantially tapered inner connecting portion, and a further oppositely tapered portion defining a bulge with said inner connecting portion. The bulge has a large radius of curvature and the oppositely tapered portion behind the bulge ends in a flange for joining the disc to the rim. The method comprises selecting, for a given grade of steel, a sheet metal blank with a thickness defined by calculating the stress value in the critical stress areas of the wheel in use; shaping and assembling the wheel disc and rim; and generating an internal stress field in the critical stress areas of the wheel in use, which field counters the stress field induced during the shaping step and by the working load on the wheel, in order to compensate for the induced stress arising from the wheel disc or rim forming step, and so that the working stress does not exceed the maximum allowable stress.
IPC 1-7
IPC 8 full level
B21D 53/26 (2006.01)
CPC (source: EP)
B21D 53/26 (2013.01)
Citation (examination)
FR 2561144 A1 19850920 - BARRAS PROVENCE [FR]
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE
DOCDB simple family (publication)
WO 9728914 A1 19970814; AT E199070 T1 20010215; DE 69704052 D1 20010315; DE 69704052 T2 20010823; EP 0879105 A1 19981125; EP 0879105 B1 20010207; ES 2154024 T3 20010316; FR 2744657 A1 19970814; FR 2744657 B1 19980306
DOCDB simple family (application)
FR 9700243 W 19970207; AT 97903421 T 19970207; DE 69704052 T 19970207; EP 97903421 A 19970207; ES 97903421 T 19970207; FR 9601526 A 19960208