Method of manufacturing of forged aluminum wheel

A manufacturing method of a forged aluminum wheel, comprising the steps of:

• S1:
• preparing an aluminum billet to manufacture said forged aluminum wheel;
• S2:
• performing hot forging on said aluminum billet of said step S1 to obtain a primary forming product;
• S3:
• performing hot forging on the primary forming product of said step S2 to obtain a secondary forming product;
• and
• S5:
• preheating the secondary product of said step S3 and performing flow forming;
• wherein said step S2 comprises the steps of:
• S2-1:
• preheating said aluminum billet of said step S1 in a preheating furnace;
• S2-2:
• preheating a first mold for manufacturing said aluminum wheel;
• and
• S2-3:
• manufacturing said primary forming product by performing hot forging one time at a pressure over 4,000 tons and under 6,000 tons through a forging machine;
• and
• wherein said step S3 comprises the steps of:
• S3-1:
• preheating the primary forming product of said step S2 in a preheating furnace;
• S3-2:
• preheating a second mold for manufacturing the forged aluminum wheel;
• and
• S3-3:
• manufacturing said secondary forming product by performing hot forging one time at a pressure over 6,000 tons and under 10,000 tons through a forging machine.