HEIDENHAIN TNC 426 (280 476) Pilot - Manual (Page 61)

62
Pockets, Studs, and Slots
SLOT MILLING (3)
• This cycle requires either a center-cut end mill (ISO 1641)
or pilot drilling at the starting point!
• The cutter diameter must be smaller than the slot width and
larger than half the slot width!
The tool must be pre-positioned over the midpoint of the slot and
offset by the tool radius with tool radius compensation at R0
CYCL DEF: Select cycle 3 SLOT MILLING
Set-up clearance: A
Milling depth (depth of the slot): B
Pecking depth: C
Feed rate for pecking (traverse velocity for plunging)
First side length ? (length of the slot): D
The algebraic sign determines the first cutting direction
Second side length ? (width of the slot): E
Feed rate (for milling)
10 TOOL DEF 1 L+0 R+6
11 TOOL CALL 1 Z S1500
12 CYCL DEF 3.0 SLOT MILLING
13 CYCL DEF 3.1 SET UP 2
14 CYCL DEF 3.2 DEPTH -15
15 CYCL DEF 3.3 PECKG 5 F80
16 CYCL DEF 3.4 X50
17 CYCL DEF 3.5 Y15
18 CYCL DEF 3.6 F120
19 L Z+100 R0 FMAX M6
20 L X+16 Y+25 R0 FMAX M3
21 L Z+2 M99