Abstract
In milling with 5-axis machining center, the attitudes of tool or workpiece are controlled by tilting 2 axes, so the milling can be performed by outer portion of cutting edge having large cutting velocity. In this report, geometric quantities such as tool-workpiece contact region, undeformed chip thickness along the cutting edge and area of cutting cross-section in slot milling of a plane for various attitudes of tool are analyzed, and variation of these geometric quantities with tool tilting angle is discussed. Three components of the cutting force under various attitudes are predicted by using a cutting model and energy method proposed in previous paper. It is found that the appropriate tool tilting angle, which gives small variation of the cutting forces with rotational angle and non-overcut caused by tool deflection, can be obtained.
