Theoretical Approach in Determining Vibrations of Periodic Cutting Tool Holder

Vibration is one of the most annoying problems faced during metal cutting operation, and it occurs frequently in manufacturing industries. The vibration level depends on many different parameters such as material type, rigidity of tooling structure, cutting data and operation mode. In milling the cutting process subjected to the tool vibrations having a milling tool holder will most likely result in high vibration levels. These vibrations have a consequence of reduced tool life, poor surface finish and sound distributions. This study presents a new approach of localization for an elastic periodic cutting tool holder of milling machine. A numerical model has been developed to describe the structure of the cutting tool holder. On the other hand, the behavior of periodic holder is investigated numerically. This paper examined the dominating milling vibration components and identified these vibrations which are related to structural dynamic properties of the milling tool holder.