| 摘要 |
<p>The method for manufacturing a light alloy hybrid wheel including a disk (2) and a rim (1) that are rigidly connectable by friction welding is characterized in that said method implements the following different operational phases: creating the front disk obtained by a dual operation of casting a foundry preform and transferring said preform into a forging die an operation of forging said preform in order to obtain the front disk and a flash removal operation for obtaining said front disk; creating the rim portion by means of the manufacture of a light alloy billet and the transformation of the latter into a circular flank through hot or cold extrusion (P1) then expanding (P2) said circular flank to the size of the final rim then performing an operation of cold or hot flow forming (P3) said circular flank to the profile of the rim in the final form and profile thereof; and assembling by welding the front disk portion and the rim by means of a friction welding operation after machining the areas to be assembled. The invention further relates to the light alloy hybrid wheel obtained according to the method.</p> |
