6 programming examples, 6 pr ogr amming examples 7.6 programming examples, Example: milling a contour in several infeeds – HEIDENHAIN TNC 620 (73498x-01) ISO programming User Manual
Page 203
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HEIDENHAIN TNC 620
203
7.
6 Pr
ogr
amming examples
7.6 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
Contour milling
Repeat infeed and contour-milling
%PGMWDH G71 *
N10 G30 G17 X+0 Y+0 Z-40 *
N20 G31 G90 X+100 Y+100 Z+0 *
N30 T1 G17 S3500 *
Tool call
N40 G00 G40 G90 Z+250 *
Retract the tool
N50 I+50 J+50 *
Set pole
N60 G10 R+60 H+180 *
Pre-position in the working plane
N70 G01 Z+0 F1000 M3 *
Pre-position to the workpiece surface
X
Y
50
100
50
CC
5
100
R45
60°
5
4
1
2
6
5
3
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