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Face Grooving Cycle G74 Or Longitudinal Cut-Off Cycle
This function is used for smooth disposal of machining ships in longitudinal cut-off machining. For SS materials which produce hard-to-cut machining chips this function can be managed for easy machining chip disposal. You can use this cycle for drilling
Programming Format:-
G74 R__;
G74 X__ Z__ P__ Q__ R__ F__ S__ T__;
Description:-
R = Distance of Return
X = Absolute Value / Incremental Value of X-Axis
Z = Absolute Value / Incremental Value of Z Axis
P = X-Axis Movement Distance
Q = Z-axis cut depth
R = ( 2nd R )Tool Escape Distance at the Bottom of Cut
F = Feed Rate
S = S Command
T = T Command
Drilling Cycle :-
For drilling X, P and R (2nd ) are not required .Omit these dada.
Notes:-
1. During single block operation, all the blocks are executed step by step2. Omission of address X , P and R( 2nd ) provides the operation of Z axis alone , resulting in peck drilling cycle.3. R ( 1st ) and R ( 2nd ) are both command values address R. the differentiation is given by whether Z is commanded together . that is ,the command R together with Z results in the flat of R ( 2nd )4. Cycle operation is performed in the block where Z is commanded
Sample program:-
G00 G96 G98 ;
G28 U0 W0 ;
X100. Z2.0 ;
G72 R2. ;
G72 U-50. Z-40. P5. Q7. F150. S100 M3 ;
G28 U0 W0 ;
M30 ;
