牙科氧化锆陶瓷铣削出口边缘碎裂实验研究  

Experimental Studies on Exit Edge Chipping of Milling Zirconia Used for Denture Processing

作　　者：雷小宝[1,2] 谢峰[1] 廖文和[3,2] 郑侃[2] 

机构地区：[1]安徽大学,合肥230601 [2]南京理工大学,南京210094 [3]南京航空航天大学,南京210016

出　　处：《人工晶体学报》2015年第6期1662-1667,1674,共7页Journal of Synthetic Crystals

基　　金：安徽省自然科学基金(1308085QE93);江苏省博士后基金(1401024C);国家自然科学基金(51305206)

摘　　要：边缘碎裂是陶瓷材料加工过程中的常见现象,很大程度上影响零件的加工质量和加工成本。为在加工过程中优化铣削参数,对牙科氧化锆材料铣削过程中易发生的出口边缘碎裂现象进行了实验研究,理论分析了导致其铣削边缘碎裂现象的影响因素,结果表明:不同铣削方式及工件材料的性能参数,如硬度、断裂韧性和微观颗粒的大小,对出口边缘碎裂宽度有较大影响。Edge chipping is a common phenomenon in milling ceramic materials,and which have great effect on quality and cost of machining dental prosthesis. In order to optimize the milling parameters,the phenomenon of exit chipping during in the denture milling on the zirconia ceramics were introduced. The factors leading to phenomenon of exit chipping in milling pre-sintered zirconia was analyzed and verified in several experiments. The results show that different milling and the corresponding performance parameters（ rigidity,fracture toughness,micro particle size） of material have effects on edge chipping.

关 键 词：氧化锆 铣削 边缘碎裂 

分 类 号：TH16[机械工程—机械制造及自动化] R783[医药卫生—口腔医学]