
5-9
5.4.3 Test-Cutting
1)
We suggest to take a workpiece
of50mm*100mm long
medium carbon steel (S45C) for
test-cutting.
2)
Select a R0.4 outer diameter
tool.
3)
Workpiece clamping portion
must be longer than 40mm, then
tailstock is not necessary.
4)
Adjust chuck pressure to
between 10~25 kgf/cm
2
.
5)
Cutting condition:
Cutting speed: V=200 m/min
Cutting depth: 0.1mm~0.2mm/on
one side.
Speed: 0.1~0.15 mm/rev
6)
The cylindericity of measured
workpiece should be within
12m
as standard. If the standard
is not met, then machine level
need to be readjusted.
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