HEIDENHAIN MANUALplus 4110 Pilot - Manual (Page 87)

87
Dr
illing cy
cles
Simple drilling cycle G71
G71 is used for axial and radial drillings. With stationary tools, the axial
hole must lie in the turning center.
The control starts execution of the cycle at the current tool and spindle
position.
Depending on “X/Z“, G71 decides whether a radial or axial drill hole
will be machined.
Parameters
X:
Final point hole for axial drilling (X as diameter value)
Z: Final point hole for radial drilling
A: Drilling lengths – default: 0
E: Dwell time (for chip breaking at end of hole) – default: 0
V: Drill variants (feed rate reduction: 50%)
• 0: Without feed rate reduction
• 1: Feed rate reduction for through drilling
• 2: Feed rate reduction for spot drilling
• 3: Feed rate reduction for spot and through drilling
K: Drilling depth (radial drillings: radius) – default: is calculated