Cutting Deflection Control of Thin-walled Part Based on Real-time Force Signal Detection and Processing
Machining accuracy of thin-walled parts which have low-rigidity is greatly influenced by cutting deflection in flank milling.In this paper,workpiece deflection during machining is controlled based on real-time cutting force signal processing and control strategy of on-line feedrate optimization.The model of workpiece deflection is established to obtain the numerical relationship among cutting force,feedrate,and deflection,which is usually used to get optimized cutting force by setting the allowable value of workpiece deflection.To implement on-line deflection control,a real-time control strategy of feedrate optimization based on nonlinear root-finding algorithm of Brent- Dekker and corresponding optimization principles is developed and integrated into open modular architecture CNC system which has the function of real-time force signal sampling and processing.Experimental results show that workpiece deflection is effectively controlled by the proposed strategies.
cutting deflection on-line feedrate optimization cutting force open modular architecture CNC
Zhenyu Han Hongyu Jin Hongya Fu
School of Mechatronics Engineering Harbin Institute of Technology Harbin, China
国际会议
哈尔滨
英文
687-690
2016-07-21（万方平台首次上网日期，不代表论文的发表时间）