[Realization of algorithm on finishing optimization-tool-path generation for high-speed machining molar crown].
Molar crown is very small and has not only thin-wall, but also complex profile, especially, the occlusal surface of each molar crown has many cusps, ridges and fossae being differently distributed. When conventional processing method is used, it is impossible to machine molar prosthesis rapidly and exactly. To enhance machining velocity and improve the surface precision of molar crown, an algorithm of entity rapid offset-based STL format is put forward. By the application of Zigzag toolpath planning and micro-machining cutter, the finishing toolpaths for high speed milling molar prosthesis are generated. In terms of Mikron UCP800 high-speed machine center, the molar all-crown made of alloy aluminum material is successfully machined. The test results show that the algorithm of tool-path generation works fast, the number of toolpaths is small, and the cutter feeds smoothly.
Sun
Quanping
Q
College of Mechanical and Electronic Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China. spqu@sina.com
Chen
Xiaogang
X
Chen
Qianliang
Q
Dai
Ning
N
Liao
Wenhe
W
He
Ning
N
D000465:Algorithms; D017076:Computer-Aided Design; D003442:Crowns; D017267:Dental Prosthesis Design; D006801:Humans; D008963:Molar