...Emad Al-Regib; Jun Ni A normalized chatter detection index, which is independent of cutting conditions, is critical for machining process monitoring and control. This paper introduces a novel method for on-line machine-tool chatter detection. The method characterizes the significant transition...

... exciting the problematic modes, but cannot stop the table disturbance forces from exciting them. Furthermore, the bandwidth of the drive becomes less than the structural resonance of the drive. Ball screw drives are commonly used in machine tools because of their relatively high stiffness to cutting...

... measurement of heating in applications, such as, brake systems and machine tools. Under a quasi-static approximation, the problem becomes that of characterizing thermal processes in the rod. Assuming that direct and exact measurements at the contacting end of the rod cannot be taken, the problem...

...Reuven Katz; John Yook; Yoram Koren Computerized control systems for machine tools must generate coordinated movements of the separately driven axes of motion in order to trace accurately a predetermined path of the cutting tool relative to the workpiece. However, since the dynamic properties...

...Stephen W. Dyer; Jianjun Shi; Jun Ni; Kwang-Keun Shin Rotating mass imbalance causes harmful vibration of high-speed machine tools, turbomachinery, etc. Constant speed, steady-state influence coefficient control allows active balancing systems to suppress this vibration if the influence matrix...

... , “ Development of Milling Machine With Parallel Mechanism ,” Toyota Technical Review , 47 , No. 1 , pp. 125 – 130 . Tlusty , J. , Ziegert , J. , and Ridgeway , S. , 1999 , “ Fundamental Comparison of the Use of Serial and Parallel Kinematics for Machine Tools ,” Annals of the CIRP , 48...

... bearing parameters involved in machine tools by using frequency response functions (FRF’s). An indirect estimation technique is used for the estimation of unmeasured FRF’s, which are required for identification of joint parameters but are not available. With the help of an index function, which is devised...