HEIDENHAIN iTNC 530 (34049x-08) Cycle programming - Manual (Page 209)

HEIDENHAIN iTNC 530 209
7.
11
TR
OCHOID
AL SL
O
T
(Cy
cle 275, DIN/ISO:
G275)
7.11 TROCHOIDAL SLOT (Cycle 275,
DIN/ISO: G275)
Cycle run
In conjunction with Cycle 14 CONTOUR GEOMETRY, this cycle facilitates
the complete machining of open and closed slots or contour slots
using trochoidal milling.
With trochoidal milling, large cutting depths and high cutting speeds
are possible because the equally distributed cutting conditions prevent
wear-increasing influences on the tool. When tool inserts are used the
entire cutting length is exploited to increase the attainable chip volume
per tooth. Moreover, trochoidal milling is easy on the machine
mechanics. Enormous amounts of time can also be saved by
combining this milling method with the integrated adaptive feed
control AFC software option (see User's Manual on conversational
programming).
Depending on the cycle parameters you select, the following
machining alternatives are available:
 Complete machining: Roughing, side finishing
 Only roughing
 Only side finishing
Example: TROCHOIDAL SLOT scheme
0 BEGIN PGM CYC275 MM
...
12 CYCL DEF 14.0 CONTOUR GEOMETRY
13 CYCL DEF 14.1 CONTOUR LABEL 10
14 CYCL DEF 275 TROCHOIDAL SLOT ...
15 CYCL CALL M3
...
50 L Z+250 R0 FMAX M2
51 LBL 10
...
55 LBL 0
...
99 END PGM CYC275 MM