HEIDENHAIN TNC 640 (34059x-04) Cycle programming - Manual (Page 312)

Cycles: Turning
13.6 TURN SHOULDER LONGITUDINAL EXTENDED
(Cycle 812, DIN/ISO: G812)
13
312
TNC 640 | User's Manual Cycle Programming | 3/2014
Cycle parameters
Machining operation Q215: Define machining
operation:
0 : Roughing and finishing
1
: Only roughing
2 : Only finishing to finished dimension
3 : Only finishing to oversize
Set-up clearance Q460 (incremental): Distance for
retraction and pre-positioning
Diameter at contour start Q491: X coordinate of
the contour starting point (diameter value)
Contour start in Z Q492: Z coordinate of the
contour starting point
Diameter at end of contour Q493: X coordinate of
the contour end point (diameter value)
Contour end in Z Q494: Z coordinate of the contour
end point
Angle of circumferential surface Q495: Angle
between the circumferential surface and the rotary
axis
Ø Q491
Ø Q483
Q484
Q463
Q460
Q493
Ø Q493
Q494