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 indicated that revising speed from an initial 12,000 rpm (point 1 in the chart) to 9,500 rpm (point 2) moved the cutting from an unstable chatter zone (crosshatched area) into a stable ...
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