| CPC B21K 1/28 (2013.01) | 5 Claims |
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1. 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.
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