Slot Milling (Cycle 253, Din/Iso: G253), Software Option 19; Cycle Run - HEIDENHAIN TNC 620 User Manual
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5
Fixed Cycles: Pocket Milling / Stud Milling / Slot Milling
5.4
SLOT MILLING (Cycle 253, DIN/ISO: G253)
5.4
SLOT MILLING (Cycle 253, DIN/ISO:
G253), Software Option 19
Cycle run
Use Cycle 253 to completely machine a slot. Depending on the
cycle parameters, the following machining alternatives are available:
Complete machining: Roughing and finishing (floor and side
finishing)
Only roughing
Only finishing (floor and side finishing)
Only floor finishing
Only side finishing
Roughing
1
Starting from the left slot arc center, the tool moves in a
reciprocating motion 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 (parameters Q368 and Q369) into account.
3 This process is repeated until the programmed slot depth is
reached.
Finishing
4 Inasmuch as finishing allowances are defined, the TNC then
finishes the slot walls, in multiple infeeds if so specified. The
slot side is approached tangentially in the left slot arc.
5
Then the TNC finishes the floor of the slot from the inside out.
146
HEIDENHAIN | TNC 620 | User's manual for cycle programming | 9/2015
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