Tool force and deflection compensation for small milling tools

摘要: A technique to compensate for deflection of small milling tools (diameter < 1 mm) has been demonstrated. This open-loop involves predicting the cutting and thrust forces, applying these forces tool, calculating shape error due tool creating a new path eliminate this error. The force model evolved from decade research predict in diamond turning. was modified include effects rotation as well changes contact area direction using ball end mill create free form surface. Experimental measurements were made corroborate components directions. then combined with stiffness calculate function depth cut, up-feed per revolution geometry part. Two experiments used demonstrate effectiveness compensation technique-a slot large circular groove. Each experiment reduced by an order magnitude 20-50 μm 2-5 μm.