Effects of the injection speed and the gate geometry on the flow behaviors of the molten metal
- Effects of the injection speed and the gate geometry on the flow behaviors of the molten metal
- 이재철; 임창동; 석현광; 이호인
- gate speed; gate geometry; flow characteristics; molten alloy; die filling
- Issue Date
- 대한금속 . 재료학회지; Journal of the Korean Institute of Metals and Materials
- VOL 39, NO 7, 844-849
- A comprehensive methodology to elucidate the effect of the gate speed and the gate geometry on the flow characteristics of the molten Al alloy was presented in this study. A commercial Al alloy (ACD12) used for a general purpose diecasting was chosen as the model fluid to monitor the flow patterns during filling the die cavity. A high speed photography was employed to visualize the real time flow patterns of the molten alloy during die filling sequence. The effects of the gate speed of the incoming fluid and the gate geometry on the die filling characteristics were investigated. In general, the flow patterns of the molten Al alloy were observed to be a laminar type when the melt was injected at a gate speed less than 0.3m/s through a gate having a thickness larger than 10㎜.
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