| 摘要 |
PURPOSE: A method for manufacturing a brake drum using squeeze casting is provided which manufactures a lightweight brake drum by using an aluminum composite material as a material of the brake drum, and substantially reduces the entire manufacturing process of the brake drum by adopting the squeeze casting. CONSTITUTION: The method for manufacturing a brake drum using squeeze casting comprises a process of preparing a sleeve(14) for filling of molten metal and a plunger(15) and a plunger tip(16) that are at the inner side of the sleeve(14), and injecting molten metal into the inside of the sleeve(14) at the same time; and a process of coupling the sleeve(14) onto a mold(17), pressing molten metal into the mold(17) using the plunger tip(16), and discharging a product from the mold(17) as the mold(17) is being released after the lapse of a certain period of time, wherein the process of pressing molten metal using the plunger tip(16) is performed in the temperature range of 580 to 590 deg.C for about 60 seconds, and the method further comprises a process of arranging electronic stirrers(18) at both sides of the sleeve(14) in which molten metal is filled, and performing electronic stirring in the temperature range of 580 to 590 deg.C using the electronic stirrers(18) between the process of injecting molten metal into the inside of the sleeve(14) and the process of pressing molten metal using the plunger tip(16).
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