HEIDENHAIN | TNC 320 | User’s manual for cycle programming | 9/2016
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4 Fixed Cycles: Tapping / Thread Milling........................................................................................ 93
4.1 Fundamentals........................................................................................................................................ 94
Overview................................................................................................................................................. 94
4.2 TAPPING with a floating tap holder (Cycle 206, DIN/ISO: G206).....................................................95
Cycle run................................................................................................................................................. 95
Please note while programming:............................................................................................................95
Cycle parameters.................................................................................................................................... 96
4.3 RIGID TAPPING without a floating tap holder (Cycle 207, DIN/ISO: G207)..................................... 97
Cycle run................................................................................................................................................. 97
Please note while programming:............................................................................................................98
Cycle parameters.................................................................................................................................... 99
Retracting after a program interruption.................................................................................................. 99
4.4 TAPPING WITH CHIP BREAKING (Cycle 209, DIN/ISO: G209)........................................................ 100
Cycle run............................................................................................................................................... 100
Please note while programming:..........................................................................................................101
Cycle parameters.................................................................................................................................. 102
4.5 Fundamentals of Thread Milling....................................................................................................... 104
Prerequisites..........................................................................................................................................104
4.6 THREAD MILLING (Cycle 262, DIN/ISO: G262).................................................................................106
Cycle run............................................................................................................................................... 106
Please note while programming:..........................................................................................................107
Cycle parameters.................................................................................................................................. 108
4.7 THREAD MILLING/COUNTERSINKING (Cycle 263, DIN/ISO: G263)...............................................110
Cycle run............................................................................................................................................... 110
Please note while programming:..........................................................................................................111
Cycle parameters.................................................................................................................................. 112
4.8 THREAD DRILLING/MILLING (Cycle 264, DIN/ISO: G264).............................................................. 114
Cycle run............................................................................................................................................... 114
Please note while programming:..........................................................................................................115
Cycle parameters.................................................................................................................................. 116