
B-63944EN-1/02 PROGRAMMING 6.MEMORY OPERATION BY Series 15 FORMAT
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the zone is cut). Then, rough machining as finishing is performed
according to the finishing figure program with finishing
allowances ∆u/2 and ∆w left.
(2) When the rough cutting finishing allowance is specified
Cutting is performed by depth of cut ∆d with cutting allowances
∆u/2+∆i and ∆w+∆k left, and the tool returns to the start point
(A) after the last cutting is performed. Then, rough machining as
finishing is performed along the target figure to remove cutting
allowances ∆i and ∆k.
Upon completion of rough machining as finishing, the block next to
the sequence block specified by Q is executed.
Type II differs from type I in the following points:
(1) In the block with sequence number ns, the two axes forming the
plane (X-axis (U-axis) and Z-axis (W-axis) for the ZX plane)
must be specified. When you want to use type II without
moving the tool along the Z-axis on the ZX plane in the first
block, specify W0.
Example
ZX plane
G71 V10.0 R5.0;
G71 P100 Q200.......;
N100 X(U)_ Z(W)_ ; (Specifies the two axes forming the plane.)
: ;
: ;
N200…………;
(2) The figure need not show monotone increase or decrease in the
direction of the second axis on the plane (X-axis for the ZX
plane) and it may have concaves (pockets).
1
2
3
10
. . .
+X
+Z
Fig. 6.4.1 (g) Figure having pockets (type II)
The figure must show monotone change in the direction of the
first axis on the plane (Z-axis for the ZX plane), however. The
following figure cannot be machined.