Study on the 2-axis NC machining of a toroid-shaped cutter with a constantangle between the cutting edge and the cutter axis

This paper provides a method for the design and NC machining of a toroid-sh aped cutter. The geometrical models of the cutting edge and helical groove of a toroid-shaped cutter with a constant angle between the cutting edge an d the cutter axis are presented. The section and relative feeding speeds of the grinding wheel in the NC machining of the cutter are deduced under the condition of a constant revolving speed. According to the simulation resul ts of the actual groove obtained, the approaches for eliminating errors in the residual revolving surface and local narrower cutting edge strip are pr esented. This paper provides a method for the design and NC machining of th is kind of toroid-shaped cutter. (C) 2001 Elsevier Science B.V. All rights reserved.