Groove Type 플라스틱 풀리의 정밀도 향상을 위한 금형 보상 가공에 관한 연구

다국어 초록 (Multilingual Abstract)

The plastic pulley applied to the car is the item in which this application increases drastically due to the advantage including vehicle lightweight, cost down through the mass production, and etc. to the key components of the aid drive required for the engine drive. Recently, when the loosened coated the engine noise stands out in the existing and while the low noise engine is drastically spreaded like the reduction of the engine noise and hybrid vehicle the importance is recognized. The uniformity of the outer wheel face of the lee, which the noise problem of the plastic pulley will loosen after the product injection surface roughness, and precision of the shape have to be secured. Because of being heated by the specific temperature as to the process including on characteristic injection of the plastic material, and etc. and being molded, the surface shrink problem is generated and this shrink problem brings the illuminance of the outer wheel face, shape, and size irregularity. In the industry field bottleneck technique development subject, in order to improve the noise problem of the plastic pulley materially, the noise problem had in the plastic pulley based on the mould drawing technology compensating the molding contraction in the mold tries to be effectually improved.