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Transverse cutting, finishing plunge-Expanded................................................................................. 229
Cutting, longitudinal, ICP contour-parallel.............................................................................................231
Cutting, transverse, ICP contour-parallel.............................................................................................. 234
Cutting, longitudinal, ICP contour-parallel, finishing............................................................................. 237
Cutting, transverse, ICP contour-parallel, finishing.............................................................................. 239
ICP cut longitud....................................................................................................................................241
ICP cutting transverse..........................................................................................................................243
Longitudinal ICP cutting, finishing........................................................................................................245
Transverse ICP cutting, finishing..........................................................................................................247
Examples of turning cycles..................................................................................................................249
5.5
Recessing cycles.................................................................................................................................253
Undercut position.................................................................................................................................254
Recessing radial................................................................................................................................... 255
Recessing axial.....................................................................................................................................257
Recessing radial-Expanded................................................................................................................ 259
Recessing axial-Expanded................................................................................................................. 261
Recessing radial finishing.....................................................................................................................263
Recessing axial finishing...................................................................................................................... 265
Recessing radial finishing-Expanded................................................................................................. 267
Recessing axial finishing-Expanded...................................................................................................269
Radial ICP recessing cycles................................................................................................................. 271
Axial ICP recessing cycles................................................................................................................... 273
Radial ICP recessing, finishing.............................................................................................................275
Axial ICP recessing, finishing...............................................................................................................277
Recess turning..................................................................................................................................... 279
Examples of recessing cycles..............................................................................................................310
5.6
Thread and undercut cycles..............................................................................................................312
Direction of threads............................................................................................................................. 312
GV parameter: Type of infeed..............................................................................................................313
Undercut position.................................................................................................................................314
Handwheel superimposition................................................................................................................ 314
Angle of infeed, thread depth, proportioning of cuts.......................................................................... 315
Thread run-in and thread run-out......................................................................................................... 315
Last cut................................................................................................................................................ 316
Thread cycle (longitudinal)....................................................................................................................317
Thread cycle (longitudinal)-Expanded................................................................................................ 319
Taper thread......................................................................................................................................... 321
API thread............................................................................................................................................ 324
Recutting threads (longitudinally)......................................................................................................... 326
Recutting threads, Expanded (longitudinally)....................................................................................... 328
Recutting taper threads....................................................................................................................... 330
Recutting API threads.......................................................................................................................... 332
Undercut DIN 76.................................................................................................................................. 334
Undercut DIN 509 E............................................................................................................................ 336
HEIDENHAIN | MANUALplus 620 | User's Manual | 12/2017
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