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Study on High-Speed Machining Stability and Tool Path Planning of Integral Impeller

Author: SunJianFeng
Tutor: ZhaoCan
School: Heilongjiang Institute of Science and Technology
Course: Mechanical Design and Theory
Keywords: Milling force Milling chatter Stability limit diagram Trajectory planning Tool axis vector control
CLC: V261.23
Type: Master's thesis
Year: 2009
Downloads: 212
Quote: 2
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Abstract


The overall impeller is one of the important parts of the aero-engine , the processing accuracy and processing efficiency for engine performance and cost are critical , this article from the impeller machining process starting for milling force, the milling stability as well as processing trajectory planning and other issues carried out in-depth research . The main work is as follows : a ball end mill milling force modeling and simulation based Altintas and Lee milling force model , starting from the milling force chip direct relationship , the establishment of a ball end mill milling force model cutting force coefficients solved through processing experiments , and verify the accuracy of the model simulation by Matlab software . 2 ball end mill derived regenerative chatter milling force model , and high-speed milling cutting stability problem based on dynamic cutting force formula , given the relationship between the the limit axial depth of cut and spindle speed , drawn the stability limit , the actual processing of experimental verification . 3 blade CNC programming difficulty , details the blade finishing trajectory planning principles and Implementation , to ensure no interference of the tool path generation . Increase in transition at the head of the blade edge knife bit processing difficulties for the blade edge head to the tool axis vector smooth change is conducive to the smooth working of machine tools and to ensure processing quality requirements .

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CLC: > Aviation, aerospace > Aviation > Aeronautical Manufacturing Technology > Manufacturing process and equipment > Cold > Milling
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