EXPERIMENTAL MODAL ANALYSIS OF A MILLING MACHINE SPINDLE -TOOL HOLDER - CUTTER ASSEMBLY

Dumitru POP, Liviu MORAR, Emilia CÂMPEAN, Ionela TĂNASE

Abstract


In this article are presented results of the experimental modal analysis performed on the main shaft assembly, spindle - tool holder - cutter of a CNC milling machine. Knowing accurately the dynamic behavior of a CNC milling machine, the modes of vibration, the frequencies and the damping coefficients, we can ensure optimal use of it to values close to maximum cutting speed and maximum feed rates. Also it is possible to avoid the unstable milling domains .

Keywords: experimental modal analysis, CNC, spindle, tool holder, cutter, main shaft

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