
B–62444E–1/04
1. MACHINING PROGRAMS FOR
2–AXES (X AND Z AXIS) LATHES
TYPES OF MACHINING
PROGRAMS
363
Q
NOTE
4 The tool is usually retracted, at the rapid traverse rate, to the
cutting start point upon the completion of boring. When the
diameter of a hole is small (shift x 2 + tool width hole
diameter), the tool is retracted at the same feedrate as that
for retraction for reaming.
Data items other than those described above are displayed
on the program and detail data screens in the same way as
for drilling.
(6) Process data screen for throw–away drilling
PROC(01) MACHN–2 HEAD PATTERN PROC–DIA STAT–PZ END–PTZ
DRILLING THROW–AWAY HEAD–L PEN–HI.S 20.000 0.000 20.000
TOOL–NO CUT–SPD FEED/REV DWELL CUT–DPTH T–CODE
631 80 0.25 1.000 1.500 0808
CUT–SPD (m/minute): Cutting speed for throw–away drilling.
<Related parameter: No. 9055, SLCSCF>
The cutting speed for throw–away drilling is
calculated from the drilling cutting conditions,
as follows:
(SLCSCF)
100
(Cutting speed of drill) ×
FEED/REV : Feed amount for throw–away drilling.
<Related parameter: NO. 9057, SLFRCF>
The feed amount for throw–away drilling is
calculated from the drilling cutting conditions, as
follows:
(SLFRCF)
100
(Feed amount of drill) ×
Data items other than those described above are displayed on the program
and detail data screens in the same way as for drilling.