Specifications

2 PARAMETER
2-68
Classification
USER
Display title
POINT
Address Meaning Description
Bottom-finishing amount of boring
Program type M
Conditions Immediate
D28
Unit 0.1 mm/0.01 inch
Setting range 0 to 99
The distance which the boring bar is fed in at 70% of the original feed rate
to finish the hole bottom
D28
MPL016
The feed rate is reduced to 70% of the original value before the hole
bottom is reached.
Note:
Not valid if the setting for the roughness (RGH) of the boring (tool sequence)
is 1.
Chip removal time
Program type M
Conditions Immediate
D29
Unit 1 sec.
Setting range 0 to 99
The time required for a chip removal tool to complete a chip removal
operation after the tool has been positioned to the hole
Number of incomplete threads in tapping
cycle
Program type M
Conditions Immediate
D30
Unit 1 thread
Setting range 0 to 9
To set number of incomplete threads in tapping cycle for metric screws
and unified screws. In tapping, internal thread is tapped extra for the depth
of (D30 × pitch) in the direction of Z.
This is also used as an element for automatically determining hole-drilling
depth (HOLE-DEP) in the automatic tool development of the tapping unit.
MPL07
DEPTH
D30
× Pitch
D11
Example:
SNo. TOOL NOM-φ No. HOLE-φ HOLE-DEP
1 DRILL 10. 10.
19.
↑
{DEPTH + D11 + (D30 × pitch)}
[Related parameter]
D43: Number of incomplete threads in tapping cycle for piped screws
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