Formula for calculating screw torque and thrust

Driving torque at constant speed: T1=(Fa * I)/(2 * 3.14 * n1) T1: Driving torque n.mm;
Fa: axial load N (Fa=F+μ mg, F: axial cutting force of screw N, μ: comprehensive friction coefficient of guide, m: weight of moving object (worktable+workpiece) kg, g: 9.8): screw lead mm;
N1: Positive efficiency of the feed screw.
Driving torque during acceleration: T2=T1+J * W
T2: Driving torque during acceleration kgf. m;
T1: Driving torque kgf. m at constant speed;
J: Inertial torque applied to the motor kg. m ² [J=Jm+Jg1+(N1/N2) ² * [Jg2+Js+m (1/2 * 3.14) ²]
W: The angular acceleration of the motor rad/s ²; Jm: Inertial torque of the motor in kg. m ²;
Jg1: Inertial torque of gear 1 kg. m ²; Jg2: Inertial torque of gear 2 kg. m ²;
Js: Inertial torque of lead screw kg. m ² (Jg1 and Jg2 can be ignored when directly driven by the motor)
Actual driving torque: T=(T1+T2) * e