HEIDENHAIN TNC 640 (34059x-01) Cycle programming - Manual (Page 304)

304 Cycles: Turning
13.9 TURN CONT
OUR, L
ONG
ITUDINAL (Cy
c
le 81
0)
Cycle parameters
U Machining operation Q215: Define the machining
operation:
0: Roughing and finishing
1: Only roughing
2: Only finishing to finished dimension
3: Only finishing to oversize
U Set-up clearance Q460 (incremental): Distance for
retraction and pre-positioning
U Reverse contour Q499: Define the machining
direction of the contour:
0: The contour is machined in the programmed
direction
1: The contour is machined inversely to the
programmed direction
U Maximum cutting depth Q463: Maximum infeed
(radius value) in radial direction. The infeed is divided
evenly to avoid abrasive cuts.
U Roughing feed rate Q478: Feed rate during roughing.
If M136 has been programmed, the value is
interpreted by the TNC in millimeters per revolution,
without M136 in millimeters per minute.
U Oversize in diameter Q483: Diameter oversize for
the defined contour
U Oversize in Z Q484: Oversize for the defined contour
in axial direction