HEIDENHAIN TNC 640 (34059x-01) Cycle programming - Manual (Page 287)

HEIDENHAIN TNC 640 287
13.5 TURN SHOULDER, L
O
NGITUDINAL (Cy
c
le 81
1)
13.5 TURN SHOULDER,
LONGITUDINAL (Cycle 811)
Application
This cycle enables you to carry out longitudinal turning of right-angled
shoulders.
You can use the cycle either for roughing, finishing or complete
machining. Turning is run paraxially with roughing.
The cycle can be used for inside and outside machining. If the tool is
outside the contour to be machined when the cycle is called, the cycle
runs outside machining. If the tool is inside the contour to be
machined, the cycle runs inside machining.
Roughing cycle run
The cycle processes the area from the tool position to the end point
defined in the cycle.
1 The TNC runs a paraxial infeed motion at rapid traverse. The infeed
value is calculated by the TNC with Q463 MAX. CUTTING DEPTH.
2 The TNC cuts the area between the starting position and the end
point in longitudinal direction at the defined feed rate Q478.
3 The TNC returns the tool at the defined feed rate by one infeed
value.
4 The TNC positions the tool back at rapid traverse to the beginning
of cut.
5 The TNC repeats this process (1 to 4) until the final contour is
completed.
6 The TNC positions the tool back at rapid traverse to the cycle
starting point.