
B–63832EN/01
13. FUNCTIONS TO SIMPLIFY
PROGRAMMING
NC FUNCTION
147
The plunge grinding cycle is possible by the following command.
G75 I_ J_ K_ X(Z)_ R_ F_ P_ L_ ;
I : The first cutting depth
(Cutting direction is by command coding.)
J : The second cutting depth
(Cutting direction is by command coding.)
K : Total cutting depth
X(Z) : Grinding range (Grinding direction is by command coding.)
R : Feed rate of I and J
F : Feed rate of X(Z)
P : Dwell time
L : Grindstone wear compensation number (Note 1)
Note 1) L is specified when performing continuous dressing.
Note 2) X(Z), I, J and K commands are all incremental commands.
(R)
I
J
X(Z)
P
(F)
P
X(Z)
Y
(F)
(R)
The plunge grinding cycle is made up from the following sequence of 6
operations.
The operations from up to are repeated until the grindstone cutting
amount reaches the total cutting amount specified by address K.
Grindstone cutting :
Cuts in Y axis direction by cutting feed only the amount specified by
the first cutting depth 1. The feed rate becomes the rate specified by
R.
Dwell :
Performs dwell for only the time specified by P.
Grinding :
Shift by cutting feed only the amount specified by X (or Z) in the X
axis direction (or Z axis direction). The feed rate becomes the rate
specified by F.
13.12.1
Plunge Grinding Cycle
(G75)
Format
Explanations