HEIDENHAIN MANUALplus 4110 Pilot - Manual (Page 72)

72
Recessing cycle
Simple axial recess-turning cycle G811
Simple radial recess-turning cycle G821
G811/G821 machines (recesses) the rectangle described by the tool
position and “X, Z“.
Tool position at end of cycle: cycle starting point.
Parameters
X, Z:
Target point (X as diameter)
P: (Maximum) plunging depth
I, K: Oversize in X, Z – default: 0
Q: Roughing/finishing
• Q=0: Roughing only
• Q=1: Roughing and finishing
• Q=2: Finishing only
U: Turning operation unidirectional – default: 0
• U=0: Turning operation bidirectional
• U=1: Turning operation unidirectional
G811: in the direction of the main spindle
G821: MANUALplus machines in the direction of the tool position
– “target point X“
B: Offset width – default: 0
O: Recessing feed rate – default: active feed rate
E: Finishing feed rate– default: active feed rate
• Cutter radius compensation: is carried out
• Oversizes: G57/G58 oversizes are taken
into consideration if I and K are not given
in the cycle. The oversizes are deleted
upon cycle completion.
• When Q=2, use “I, K“ to define the
material to be machined during finishing.