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The Cutting Tool-workpiece Interference Simulation for Worm Screw Machining by Planetary Milling  

Lee, Min-Hwan (Mando Co. Ltd.)
Kim, Sun-Ho (Department of Mechatronics Engineering, Dong-Eui Univ.)
Ahn, Jung-Hwan (School of Mechanical Engineering, Pusan National Univ.)
Publication Information
Abstract
A worm screw is widely used in a geared motor unit for motion conversion from rotation to linear. For mass production of a high quality worm, the current rolling process is substituted with the milling process. Since the milling process enables the integration of all operations of worm manufacturing on a CNC(Computer Numerical Control) lathe, productivity can be remarkably improved. In this study, the tooling system for planetary milling on a CNC lathe to improve machinability is developed. However, the cutting tool-workpiece interference is important factors to be considered for producing high quality worms. For adaptability of various worms machining, the tool-workpiece interference simulation system based on a tool-tip trajectory model is developed. The developed simulation system is verified through several kinds of worms and experimental results.
Keywords
Cutting Tool-workpiece Interference Simulation; Geared Motor; Worm Screw; Planetary Milling;
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