Teach-in | Drilling cycles
5
HEIDENHAIN | MANUALplus 620 | User's Manual | 12/2017
359
Examples of drilling cycles
Centric drilling and tapping
The machining operation consists of two steps. In the first step,
the Drilling axial cycle drills the hole. In the second, the Tapping
axial cycle taps the thread.
The drill is positioned at the safety clearance to the workpiece
surface (Start point X, Z). The Start point drill Z1 is therefore not
programmed. In the parameters AB and V, you program a feed-rate
reduction for spot drilling.
The thread pitch is not programmed. The control uses the thread
pitch of the tool. The Return speed SR ensures that the tool is
retracted quickly.
Tool data (drill)
TO = 8 – Tool orientation
I = 8.2 – Drilling diameter
B = 118 – Point angle
H = 0 – The tool is not a driven tool
Tool data (tap)
TO = 8 – Tool orientation
I = 10 – Thread diameter M10
F = 1.5 – Thread pitch
H = 0 – The tool is not a driven tool
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