HEIDENHAIN TNC 640, User Manual, Page: 702 / 948

Turning | Turning program functions (option 50)
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HEIDENHAIN | TNC 640 | Conversational Programming User's Manual | 10/2017
Undercut UDC TYPE_U
Input parameters in undercut
UDC TYPE_U
Input parameters Application Input
R
Corner radius of both
inner corners Required
DEPTH
Undercut depth Required
BREADTH
Width of undercut Required
RND
/
CHF
Curve / chamfer of outer
corner Required
Example: Undercut form U with depth = 3, width = 8
21 L X+40 Z+0
22 L Z-30
23 UDC TYPE_U R1 DEPTH3 BREADTH8 RND1
24 L X+60
Undercut UDC THREAD
Input parameters in undercut DIN 76
UDC THREAD
Input parameters Application Input
PITCH
Thread pitch Optional
R
Corner radius of both
inner corners Optional
DEPTH
Undercut depth Optional
BREADTH
Width of undercut Optional
ANGLE
Undercut angle Optional
Example: Thread undercut according to DIN 76 with thread
pitch = 2
21 L X+40 Z+0
22 L Z-30
23 UDC THREAD PITCH2
24 L X+60