Heidenhain MANUALplus 4110 User Manual Page 127

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HEIDENHAIN MANUALplus 4110 127
4.4 Roughing Cycles
Roughing (recess clearance) with plunge cycle
The tool to be used cannot plunge at the required
angle of 15°. The roughing process for the area
therefore requires two steps.
First step:
The shaded area from "AP" (starting point of contour)
to "EP" (contour end point) is rough-machined with the
cycle "Plunge longitudinal—Expanded," taking
oversizes into account.
The "starting angle A" is defined with 15°, as specified
in the workpiece drawing. From the tool parameters,
MANUALplus automatically calculates the maximum
plunging angle that can be achieved with the
programmed tool. The resulting contour will not be
complete and will be reworked in the second step.
The rounding arcs in the contour valley are also
machined in "expanded mode."
Be sure to enter the correct values for the parameters
"contour starting point X1, Z1" and "contour end point
X2, Z2." These parameters determine the cutting and
infeed directions—in this example, external
machining and infeed in negative X-axis direction.
Tool data
Lathe tool (for external machining)
WO = 1—Tool orientation
A = 93°—Tool angle
B = 55°—Point angle
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