HEIDENHAIN TNC 640 User Manual page 41

Contents
12.29 THREAD EXTENDED (Cycle 832, DIN/ISO: G832)........................................................................... 467
Application............................................................................................................................................ 467
Cycle run.............................................................................................................................................. 467
Please note while programming:......................................................................................................... 468
Cycle parameters................................................................................................................................. 469
12.30 CONTOUR-PARALLEL THREAD (Cycle 830, DIN/ISO: G830)..........................................................471
Application............................................................................................................................................ 471
Cycle run.............................................................................................................................................. 471
Please note while programming:......................................................................................................... 472
Cycle parameters................................................................................................................................. 474
12.31 GEAR HOBBING (Cycle 880, DIN/ISO: G880).................................................................................. 476
Cycle run.............................................................................................................................................. 476
Please note while programming:......................................................................................................... 477
Cycle parameters................................................................................................................................. 479
Direction of rotation depending on the machining side (Q550)...........................................................482
12.32 CHECK UNBALANCE (Cycle 892, DIN/ISO: G892).......................................................................... 483
Application............................................................................................................................................ 483
Please note while programming:......................................................................................................... 484
Cycle parameters................................................................................................................................. 486
12.33 Example program...............................................................................................................................487
Example: Shoulder with recess........................................................................................................... 487
Example: Gear hobbing........................................................................................................................489
HEIDENHAIN | User's manual for cycle programming | 10/2017
41