针对等离子熔射制模技术中耐高温原型制造问题,该研究选用传统耐高温材料粘土做为原材料,采用干燥工艺使得粘土毛坯适合机加工和夹持,同时采用数控机床的传统铣削方法制造耐高温原型,减少了旧工艺中翻制原型工艺流程长和精度丢失等弊端.选用沙发模型做为耐高温原型的例子进行了粗加工、精加工的仿真和加工实验,原型表面精度达到1μm.符合熔射制模要求,证明该工艺路线可行.%Focus on manufacturing problems of high-temperature prototyping in plasma spray tooling technology, in this study, the traditional high-temperature materials clay was chosen as raw material, the drying process makes the clay blanks suitable for machining and clamping, high-temperature prototype was manufactured by the conventional milling of CNC machine tools, reducing the drawbacks of the old process length and loss of accuracy in reproduction of the prototype. The sofa model was selected as a high-temperature prototype example, it was simulated in a roughing, finishing machining and processed, surface accuracy of the prototype was 1 μm. This was in line with the melting shot molding requirements, and that the process route was feasible.
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