科研之友
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摘要
In the present study, an approach to model the dimensional accuracy (Delta d), for different geometrical shapes, metal type/pouring temperatures in vacuum moulding (VM) have been proposed and applied by using Buckingham's pi-theorem. Three input parameters namely: pouring temperature; geometrical shape and vacuum pressure were selected to give output in form of Delta d. This study provides main effects of these variables on Delta d and shed light on mechanism of casting accuracy in VM.
- 出版日期2018-3
