Host: The Institute of Systems, Control and Information Engineers
Name : 2018 International Symposium of Flexible Automation
Location : Kanazawa Chamber of Commerce and Industry, Kanazawa Japan
Date : July 15, 2018 - July 19, 2018
Pages 86-87
The stiffness of machine tools is a key factor to increase the productivity. The dynamic stiffness dominates the stable cutting conditions, where forced and regenerative chatters do not occur. In general, dynamic stiffness is measured using an impact hammer as it does not require the particular device setting. However, humans should use a hammer and impact control needs skills. To this end, several researches have been conducted to establish automatic excitation methods. To measure the dynamic stiffness of a rotating spindle, authors have developed an electromagnetic biaxial excitation device which can generate biaxial force. This paper presents the measurement result of dynamic stiffness for both the structure and spindle of a five-axis machining center using the developed device.
