Fixed Cycles: Cylindrical Surface
8.5 CYLINDER SURFACE (Cycle 39, DIN/ISO: G139, software option 1)
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HEIDENHAIN | TNC 320 | User’s manual for cycle programming | 9/2016
Cycle parameters
Q1 Milling depth? (incremental): Distance between
cylinder surface and contour bottom. Input range
-99999.9999 to 99999.9999
Q3 Finishing allowance for side? (incremental):
Finishing allowance in the plane of the unrolled
cylindrical surface. This allowance is effective in the
direction of the radius compensation. Input range
-99999.9999 to 99999.9999
Q6 Set-up clearance? (incremental): Distance
between tool tip and cylinder surface. Input range 0
to 99999.9999
Q10 Plunging depth? (incremental): Infeed per cut.
Input range -99999.9999 to 99999.9999
Q11 Feed rate for plunging?: Traversing speed
of the tool in the spindle axis. Input range 0 to
99999.9999, alternatively FAUTO, FU, FZ
Q12 Feed rate for roughing?: Traversing speed
of the tool in the working plane. Input range 0 to
99999.9999, alternatively FAUTO, FU, FZ
Q16 Cylinder radius?: Radius of the cylinder on
which the contour is to be machined. Input range 0
to 99999.9999
Q17 Dimension type? deg=0 MM/INCH=1: The
dimensions for the rotary axis of the subprogram
are given either in degrees or in mm/inches
NC blocks
63 CYCL DEF 39 CYL. SURFACE
CONTOUR
Q1=-8 ;MILLING DEPTH
Q3=+0 ;ALLOWANCE FOR SIDE
Q6=+0 ;SET-UP CLEARANCE
Q10=+3 ;PLUNGING DEPTH
Q11=100 ;FEED RATE FOR
PLNGNG
Q12=350 ;FEED RATE F.
ROUGHNG
Q16=25 ;RADIUS
Q17=0 ;TYPE OF DIMENSION
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