Siemens SINUMERIK 840D sl Operating Manual

Also see for SINUMERIK 828D Turning: Diagnostic manual Function manual Equipment manual Programming manual Operating manual

Parameters Description UnitD Maximum depth infeed mmDF ● Percentage for each additional infeedDF=100: Infeed increment remains constantDF<100: Infeed increment is reduced in direction of final drilling depth Z1.Example: last infeed 4 mm; DF 80%next infeed = 4 x 80% = 3.2 mmnext but one infeed = 3.2 x 80% = 2.56 mm etc.● Amount for each additional infeed%mmV1 Minimum infeed - (only for DF, percentage for each additional infeed)Parameter V1 is only available if DF< 100 has been programmed.If the infeed increment becomes very small, a minimum infeed can be programmed inparameter "V1".V1 < Infeed increment: The tool is inserted by the infeed incrementV1 > Infeed increment: The tool is inserted by the infeed value programmed under V1.mmPredrilling Predrilling with reduced feedrate● Yes● NoThe reduced drilling feedrate is obtained as follows:Drilling feedrate F1 < 0.15 mm/rev: Predrilling feedrate = 30% of F1Drilling feedrate F1 ≥ 0.15 mm/rev: Predrilling feedrate = 0.1 mm/revAZ(only for G code)Predrilling depth with reduced drilling feedrate - ("yes", only for predrilling) mmThrough boring Remaining drilling depth with drilling feedrate● Yes● NoZR Residual drilling depth for through boring - ("yes", only for through boring) mmFR Drilling feedrate for remaining drilling depth - ("yes", only for through boring) mm/minmm/revChip removal Stock removal before thread milling● Yes● NoReturn to workpiece surface for stock removal before thread milling.Thread Direction of rotation of the thread● Righthand thread● Lefthand threadF2 Feedrate for thread milling mm/minmm/toothTable Thread table selection:● without● ISO metric● Whitworth BSW● Whitworth BSP● UNCProgramming technology functions (cycles)10.1 DrillingTurningOperating Manual, 05/2017, A5E40868721 327