HEIDENHAIN SW 54843x-03 DIN Programming - Manual (Page 100)

100 smart.Turn units
2.5 Units—Dr
illing in C axis
"Linear tapping pattern, lateral surface" unit
The unit machines a linear tapping pattern in which the individual
features are arranged at a regular spacing on the lateral surface.
Unit name: G73_Lin_Mant_C / Cycle: G73 (see page 328)
Use the retraction length for floating tap holders. The cycle
calculates a new nominal pitch on the basis of the thread depth, the
programmed pitch, and the retraction length. The nominal pitch is
somewhat smaller than the pitch of the tap. During tapping, the tap is
pulled away from the chuck by the retraction length. With this method
you can achieve higher service life from taps.
Access to the technology database:
 Machining operation: Tapping
 Affected parameters: S
Pattern form
Q
Number of holes
Z1, C1 Starting point of pattern
Wi Angle increment
W End angle
Z2 End point of pattern
Cycle form
X1
Start point drill (starting point of hole; diameter value)
X2 End point drill (end point of hole; diameter value)
F1 Thread pitch
B Run-in length
L Retraction length when using floating tap holders (default: 0)
SR Retraction speed (default: Shaft speed for tapping)
SP Chip breaking depth
SI Retraction distance
RB Retraction plane
Further forms: see page 60