HEIDENHAIN 530 (340 49x-07) Pilot - Manual (Page 108)

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Unit 22 Fine Roughing
With the fine roughing unit you can use a smaller tool to rework a contour
pocket that has been roughed-out with unit 122. In this step, smarT.NC
machines only the places the previous tool did not reach.
Parameters on the overview form:
U T : Tool number or name (switchable via soft key)
U S : Spindle speed [rpm] or cutting speed [m/min or ipm]
U F : Feed rate for plunging [mm/min], FU [mm/rev] or FZ [mm/tooth]
U F : Feed rate for milling [mm/min] or FU [mm/rev] or FZ [mm/tooth]
U Coarse roughing tool : Number or name of the tool (switchable via soft
key) with which you have coarse-roughed the contour
U Plunging depth : Infeed per cut
Additional parameters on the tool detail form:
U DL : Delta length for tool T
U DR : Delta radius for tool T
U DR2 : Delta radius 2 (corner radius) for tool T
U M function : Any miscellaneous function M
U Spindle : Direction of spindle rotation. As a default, smarT.NC sets M3
U Tool preselect : If needed, this is the number of the next tool for faster
tool change (machine-dependent)