A 3-mm ballnose cutter re-roughs a 50 Rc H13 toolsteel mold at 15,000 rpm and 120 ipm. High speed spindles are application specific, sophisticated, delicate and expensive. Here is how one manufacturer ...
The software uses stability-chart principles by listening to the cut with a microphone, then it selects a spindle speed so that tooth frequency or some multiple of tooth frequency becomes equal to ...