초록

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Abstract ▼ AI-Helper

In this study, we developed the mold for the plastic cavity filter which is a kind of a wireless communication device. Since the cavity filter is made of aluminium, the cost of fabrication is high and the production rate is low. But we can produce plastic cavity filter part by injection molding proc...

In this study, we developed the mold for the plastic cavity filter which is a kind of a wireless communication device. Since the cavity filter is made of aluminium, the cost of fabrication is high and the production rate is low. But we can produce plastic cavity filter part by injection molding process with the mold which was designed by our team. The dimension and surface quality of plastic cavity filter was investigated by varying the molding method (conventional and MmSH process) and two different types of resin(PC/ABS and ABS). In case of ABS part, the shrinkage of the inner partition walls was decreased when we adopted MmSH method. The weight of both ABS and PC/ABS parts increased and the surface roughness decreased with MmSH process.

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