Patent ID: 8655479

Claim:
A method of determining conditions of a stage of machining a workpiece while modulating a cutting speed between the workpiece and a tool, the method comprising: simulating the machining stage by provisionally setting parameters of a modulation function for modulating the cutting speed; deducing therefrom by calculation a corresponding surface state of the workpiece after the machining stage has been completed; iteratively modifying the parameters of the modulation function, each time simulating the machining stage so as to deduce therefrom the corresponding surface state until the surface state reaches an acceptable value; and performing the machining stage by causing the cutting speed to vary in application of the modulation function corresponding to the surface state of acceptable value, wherein the modulation function of a cutting speed Ω(t) is of type: Ω( t )=Ω N +ΔΩ·F ω( t ) with −1 <F ω( t )<1 Fω(t) being a periodic function of period 2Π/ω, Ω N being a nominal speed, and ΔΩ being an amplitude of variation about the nominal speed.