快速制造粘土类陶瓷原型工艺研究.docVIP

快速制造粘土类陶瓷原型工艺研究1 摘 要 快速模具制造技术是20世纪80年代后期产生并发展起来的一种新型制造金属模具技术，它在制造特别复杂型腔模型的金属模具上大大缩短了模具产生的周期，降低了开发成本，在效率和精度方面优势明显。等离子熔射快速模具制造是快速模具制造技术的一种，已经满足后续等离子喷涂工艺的要求，不需要后续精加工了。但如果是加工陶瓷零件，考虑到表面精度要高的问题则还需要做磨削精加工，为此本文简略介绍了磨削相关理论和模型，并结合机器人自动抛光系统进一步论证其加工的可行性。 关键字：快速制造 Process research II of Rapid Manufacturing Ceramic Prototyping of Clay ABSTRACT Rapid tooling technology is in the late 1980s and developed a new type of manufacturing metal molds, it has obvious advantages in efficiency and accuracy, particularly in complex cavity model, due to greatly reducing the cycle of the mold, reducing development costs, Rapid tooling by plasma spraying is a rapid tooling technology, an indirect molding method, it is widely used because it is almost free from the molding material and the size limit, the die size and high surface accuracy. Plasma spray tooling process, the high temperature prototype for general reproduction comes from the silicone mold, silicone mold from rapid tooling prototype reproduction, twice the reproduction process will lose some accuracy and spend more time. In this study, the use of CNC machine tools milling clay prototype process, reducing the drawbacks of the above process twice reproduced. Obtained after milling prototype heat sintering to obtain high-temperature prototype shrinkage after sintering cooling process, the clay prototype of the first expansion in the last clay prototype there will be shrinkage. The sintering process as a critical process, the level of the quality of the process greatly affected the prototype high-temperature ceramic surface dimensional accuracy of the clay prototype into a ceramic prototype. Easy to form hard and brittle ceramic prototypes, finishing collapse excluded and the manufacturing cost is high, it is particularly important in order to minimize the finishing time of removal of clay prototype in dimensional changes in the heating during the sintering shrinkage mechanism, which come out of the size of the compensation and par