HEIDENHAIN 548431-05 User Manual page 252

5
2nd step
The area that was left out in the first step (shaded area in the
figure) is machined with the Plunge longit. E cycle. Before
executing this step, you must change tools.
The
expanded mode
contour valley.
The Start point contour X1, Z1 and End point contour X2, Z2
parameters determine the cutting and infeed directions—in this
example, external machining and infeed in negative X-axis direction.
The Start point contour Z1 parameter was determined during
simulation of the first step.
Tool data:
Turning tool (for external machining)
TO = 3 – Tool orientation
A = 93° – Tool angle
B = 55° – Point angle
252
is used to machine the rounding arcs in the
Teach-in | Turning cycles
HEIDENHAIN | MANUALplus 620 | User's Manual | 12/2017