铸件结构设计中基准选择探讨

Discussion on Selection Batum in Casting Design

铸造成型技术在现代民用飞机结构件中正逐步推广,铸件结构设计特别注意基准的选择。本文首先阐述了铸件结构设计中铸件基准和机加基准的选择确定,给出了铸件基准转换到加工基准的一般考虑,最后以飞机舱门用导向槽为例进一步说明铸件结构设计中基准的合理选择。

Casting molding technology is gradually being extended in the modern civil aircraft structures, the structure design of castings should specially pay attention to the choice of datum. In this paper, the choice of the casting blank datum and machining datum in casting structural design was described, the general considerations of transforming the casting blank datum to the machining datum were given. Finally, taking the aircraft door guide groove as an example, the method of reasonable selecting datum in casting structural design was further illustrated.