Feedrate per revolution (G95)
G95 Feedrate in mm/revolution (modal) |
During turning with active G95, a constant chip thickness can be defined with the F Word in [mm/rev, inch/rev] irrespective of spindle speed (rpm).
Here, the axis feedrate is linked to the rotational speed (rpm) of the position-controlled spindle. It is only valid in conjunction with the G function with which it was programmed. This means that if a change is made from G95 to G94 or G93 (Section "Machining time or feedrate") the valid F word for G95 is not adopted..
G95 can also be programmed in combination with a controlled (PLC) main spindle (P-CHAN-00069). Please note here that the resulting feedrate per revolution is only dependent on the programmed values (F word, S word). Real-time influences on the spindle speed are not considered, e.g. override changes. This type of programming in only permitted in a channel in conjunction with the assigned main spindle as of Build V3.1.3066.02.
Programing Example

Feedrate per revolution (G95)
N10 F1000 G01 X0 Z100 M3 S1200 ;Feedrate 1000 mm/min (G94)
N20 G95 F1.5 ; Feedrate per revolution 1.5 mm/rev
;speed 1200 rpm
N30 Z50 ;Feedrate 1800 mm/min
N40 G94 X50 ;Feedrate 1000 mm/min valid from N10
N50 G93 F20 X20 ;Machining time 20 s
N60 G95 Y200 S2000 ;Feedrate per revolution 1.5 mm/rev valid from N20,
;speed 2000 rpm
N70 M30