HEIDENHAIN MANUALplus 4110 - Manual (Page 128)

128 4 Cycle Programming
4.4 Roughing Cy
cles
Second step:
The area that was left out in the first step (shaded area
in top left figure) is machined with the cycle "Plunge,
longitudinal—Expanded." Before executing this step,
you must change tools.
The rounding arcs in the contour valley are also
machined in "expanded mode."
The parameters for contour starting point X1, Z1 and
contour end point X2, Z2 determine the cutting and
infeed directions—in this example, external
machining and infeed in negative X-axis direction.
The parameter for contour starting point Z1 was
determined during simulation of the first step.
Tool data
„ Lathe tool (for external machining)
„ WO = 3—Tool orientation
„ A = 93°—Tool angle
„ B = 55°—Point angle