Aluminium wheel for vehicle and the manufacturing method

A method of manufacturing an aluminum wheel for a vehicle, comprising:

• a low density material preparing step of preparing a low density material of pulverized particles having a predetermined particle size and a density that is lower than a density of aluminum;
• a binder mixing step of supplying a binder to the low density material and mixing them in a paste state;
• a low density material injecting step of heating a wheel core manufacturing mold to 200 to 350° C. and then injecting the low density material mixed with the binder into the wheel core manufacturing mold;
• a wheel core ejecting step of closing the wheel core manufacturing mold, applying a pressure of about 5 to 20 bar, maintaining the pressure for 1 to 5 minutes to completely solidify the low density material, and ejecting the manufactured wheel core from the wheel core manufacturing mold;
• and
• a wheel core mounting step of mounting the wheel core ejected in the wheel core ejecting step into an aluminum wheel casting mold.