HEIDENHAIN TNC 640 User Manual page 25

Contents
4 Fixed Cycles: Tapping / Thread Milling...................................................................................... 121
4.1 Fundamentals..................................................................................................................................... 122
Overview.............................................................................................................................................. 122
4.2 TAPPING with a floating tap holder (Cycle 206, DIN/ISO: G206)..................................................123
Cycle run.............................................................................................................................................. 123
Please note while programming:......................................................................................................... 124
Cycle parameters................................................................................................................................. 125
4.3 RIGID TAPPING without a floating tap holder (Cycle 207, DIN/ISO: G207).................................. 126
Cycle run.............................................................................................................................................. 126
Please note while programming:......................................................................................................... 127
Cycle parameters................................................................................................................................. 128
Retracting after a program interruption............................................................................................... 129
4.4 TAPPING WITH CHIP BREAKING (Cycle 209, DIN/ISO: G209)....................................................... 130
Cycle run.............................................................................................................................................. 130
Please note while programming:......................................................................................................... 131
Cycle parameters................................................................................................................................. 132
4.5 Fundamentals of Thread Milling...................................................................................................... 134
Prerequisites.........................................................................................................................................134
4.6 THREAD MILLING (Cycle 262, DIN/ISO: G262)................................................................................136
Cycle run.............................................................................................................................................. 136
Please note while programming:......................................................................................................... 137
Cycle parameters................................................................................................................................. 138
4.7 THREAD MILLING/COUNTERSINKING (Cycle 263, DIN/ISO: G263)..............................................139
Cycle run.............................................................................................................................................. 139
Please note while programming:......................................................................................................... 140
Cycle parameters................................................................................................................................. 141
4.8 THREAD DRILLING/MILLING (Cycle 264, DIN/ISO: G264)............................................................. 143
Cycle run.............................................................................................................................................. 143
Please note while programming:......................................................................................................... 144
Cycle parameters................................................................................................................................. 145
4.9 HELICAL THREAD DRILLING/MILLING (Cycle 265, DIN/ISO: G265)..............................................147
Cycle run.............................................................................................................................................. 147
Please note while programming:......................................................................................................... 148
Cycle parameters................................................................................................................................. 149
4.10 OUTSIDE THREAD MILLING (Cycle 267, DIN/ISO: G267)............................................................... 151
Cycle run.............................................................................................................................................. 151
HEIDENHAIN | User's manual for cycle programming | 10/2017
25