高速加工铣刀结构参数研究

Research on structure parameters of high speed milling

针对高速加工过程中铣刀产生的振动进行了研究,利用有限元软件对不同结构铣刀模型进行了模态分析。分析表明:随铣刀齿数的增加,其固有频率越低,越易引起共振;相同齿数情况下,一阶和二阶铣刀固有频率接近,而之后的各阶固有频率相差很大;切削载荷对铣刀固有频率影响不大。

The vibration produced by high speed machining has been researched,and the modal analysis is conducted on the milling models with different structure applying finite element software.The following results were obtained：with the increasing of milling teeth,its natural frequency decreases,which will give rise to the resonance more easily;in the case of the same teeth,the natural frequency of the first-order mill are close to the second-order mill,however,the natural frequency of the subsequent orders varied widely;the cutting load has little effect on the natural frequency.