Three-Dimensional Tool Compensation for a Three-Axis Turning Centre

Modern CNC turning centres are often equipped with powered tooling to enable radial or axial drilling, tapping or milling operations. If the machine tool is equipped with a fully controlled C-(spindle) axis the prospect of more complex milling operations becomes evident. However, for such operations, the requirements for tool compensation limit the work which can be achieved. This paper details an algorithm for 3D tool compensation when using a spherical end milling cutter as a radial tool in such a turning centre.