Longitudinal roughing cycle: G71
Programming Format:-
G71 = G71 U__ R__ ;
G71 A__ P__ Q__ U__ W__ F__ S__ T__;
Description:-
U = Cutting depth (radius value)
R = Escape distance (Escape angle is fixed 45º.)
A = Finish shape Program No.
P = Head sequence No. for finishing shape
Q = End sequence No. for finishing shape
U = Finishing allowance and direction in X-axis direction (diametric
Value)
W = Finishing allowance and direction in Z-axis direction
F = Feed rate
S = Spindle Speed
T = Tool number
Notes:-
Even if F and S commands exist in blocks defined by P and Q, they will be ignored during roughing cycle because they are considered for finishing cycle.
Continues……………………………………
Sample program coming Soon