In the production of automation quantity full mold casting, the foam pattern making is an important protion procedure.
在自动化大批量的实型铸造生产中，泡沫模型的制作是一个重要的生产工序。
The processing procedure of prototype making by rapid prototype and the production process of cast steel box without wax pattern in investment casting were described.
给出了利用RP技术制造非金属原型的工艺流程，介绍了无模具熔模铸造箱体铸钢件的工艺过程。
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