HEIDENHAIN TNC 410 - Manual (Page 213)

9 Programming: Subprograms and Program Section Repeats 200
Example: Milling a contour in several infeeds
9.6 Programming Examples
Example: Milling a contour in several infeeds
Program sequence
■ Pre-position the tool to the workpiece surface
■ Enter the infeed depth in incremental values
■ Mill the contour
■ Repeat downfeed and contour-milling
0 BEGIN PGM PGMWDH MM
1 BLK FORM 0.1 Z X+0 Y+0 Z-40
2 BLK FORM 0.2 X+100 Y+100 Z+0
3 TOOL DEF 1 L+0 R+10
4 TOOL CALL 1 Z S500
5 L Z+250 R0 FMAX
6 L X-20 Y+30 R0 F MAX
7 L Z+0 R0 FMAX M3
8 LBL 1
9 L IZ-4 R0 F MAX
10 APPR CT X+2 Y+30 CCA90 R+5 RL F250
11 FC DR- R18 CLSD+ CCX+20 CCY+30
12 FLT
13 FCT DR- R15 CCX+50 CCY+75
14 FLT
15 FCT DR- R15 CCX+75 CCY+20
16 FLT
17 FCT DR- R18 CLSD- CCX+20 CCY+30
18 DEP CT CCA90 R+5 F1000
19 L X-20 Y+0 R0 F MAX
20 CALL LBL 1 REP 4
21 L Z+250 R0 FMAX M2
22 END PGM PGMWDH MM
Define the tool
Call the tool
Retract the touch probe
Pre-position in the working plane
Pre-position to the workpiece surface
Set label for program section repeat
Infeed depth in incremental values (in the open)
Approach contour
Contour
Depart contour
Retract tool
Return jump to LBL 1; section is repeated a total of 4 times
Retract in the tool axis, end of program
X
Y
100
100
20
75
30
50 20 75
R15
R18
R15