55
data and when the follow-up procedure the new loop parameters (Z, R, P), a new cycle parameters take effect
immediately, and the modal in the following blocks.
Programming example:
Thread lead 1.0mm
Feed per minute mode:
G0 G90 G54 X50. Y160. Z30.
Fast positioning to the hole 1
G94
Specify the feed per revolution mode
M29 S200
Specify rigid tapping mode
G98 G84 X50. Y160. Z-10. F200.
R3.
Executive tapping cycle and tapping a hole first,
then return to the initial plane
X-50.
Boring the holes 2, then return to the initial plane
Y-160.
Boring the holes 3, then return to the initial plane
X50.
Boring the holes 4, then return to the initial plane
G80
Fixed cycle canceled.
M30
End of program
Feed per revolution mode:
G0
G90
G54
X50.
Y160.
Z30.
Fast positioning to the hole 1
G95
Specify the feed per revolution mode
M29 S200
Specify rigid tapping mode
G98 G84 X50. Y160. Z-10. F2.
R3.
Executive tapping cycle and tapping a hole first,
then return to the initial plane
X-50.
Boring the holes 2, then return to the initial plane
Y-160.
Boring the holes 3, then return to the initial plane
X50.
Boring the holes 4, then return to the initial plane
G80
Fixed cycle canceled.
M30
End of program
13.4.5 Chip rigid tapping cycle (G74, G84)
Peck tapping the rigid tapping mode is very difficult because the chip to prevent movement of the tool, or
increase the resistance. In this case, chip rigid tapping is very suitable for use.
This cycle, the tool to perform several infeed bottom of the hole. Peck tapping has two modes: high-speed
peck tapping cycle and standard peck tapping cycle, you can select the parameters NO.0522.
Format:
G74
（
G84
）
X_ Y_ Z_ R_ P_ Q_ F_ K_;
X_ Y_: Hole position data
Z_: absolute coordinate of the hole bottom (absolute value)
From the R point to the bottom of the hole distance (incremental mode)
R_: absolute coordinates of point R (absolute value)
Distance (incremental mode) from an initial position to point R
P_: Dwell time
