HEIDENHAIN TNC 640 (34059x-04) - Manual (Page 486)

Programming: Turning Operations
14.2 Basis Functions (Software Option 50)
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TNC 640 | User's Manual
HEIDENHAIN Conversational Programming | 3/2014
Undercut UDC TYPE_U
Input elements in undercut UDC TYPE_U
Input element Application Input
R Corner radius of both
inner corners
Required
DEPTH Undercut depth Required
BREADTH Undercut width Required
RND / CHF Curve / chamfer of
outer corner
Required
Undercut form U: 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 elements in undercut DIN 76 UDC THREAD
Input element Application Input
PITCH Thread pitch Optional
R Corner radius of both
inner corners
Optional
DEPTH Undercut depth Optional
BREADTH Undercut width Optional
ANGLE Undercut angle Optional
Thread undercut according to DIN 76: Thread pitch = 2
21 L X+40 Z+0
22 L Z-30
23 UDC THREAD PITCH2
24 L X+60