For calculating the cost of the cavity/core, the dissertation brought forward the concept of volume rate for roughing, and the concept of surface rate for finishing, which embodied the real manufacturing of the mold.

• 在型芯/型腔加工成本的估算上也提出了体积加工率和面积加工率的概念,体积加工率计算粗加工工时,面积加工率确定精加工工时,体现了型芯/型腔的加工过程,计算结果具有较强的可信度。