Circular Slot (Cycle) - HEIDENHAIN ITNC 530 User Manual

CIRCULAR SLOT (Cycle 254)
Use Cycle 254 to completely machine a circular slot. Depending on the
cycle parameters, the following machining alternatives are available:
Complete machining: Roughing, floor finishing, side finishing
Only roughing
Only floor finishing and side finishing
Only floor finishing
Only side finishing
With an inactive tool table you must always plunge
vertically (Q366=0) because you cannot define a plunging
angle.
Roughing
1 The tool moves in a reciprocating motion in the slot center at the
plunging angle defined in the tool table to the first infeed depth.
Specify the plunging strategy with Parameter Q366.
2 The TNC roughs out the slot from the inside out, taking the
finishing allowances (parameter Q368) into account.
3 This process is repeated until the programmed slot depth is
reached.
368 8 Programming: Cycles