Abstract: The thin cylindrical shell has a relatively low stiffness and poor processing, and is easy of deforming and vibrating during processing because of its material properties and structural characteristics. Regenerative chatter is a main vibration reason of cutting machine tools. The law of limit cutting width of regenerative chatter varying with the speed of spindle was researched. The kinetic parameters of cutting system were identified through the dynamic test, model experiment and dynamic cutting forces. Finally, the diagram of cutting stability of thin cylindrical shell was obtained. Furthermore, the area of strict stability was proposed compared with traditional stability.

Key words: machinofature technique and equipment, thin cylindrical shell, cutting stability, area of strict stability, diagram of stability