OPTIMUM Maschinen OPTIturn 3432420, Руководство по эксплуатации

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Operation
Version 1.0.5 - 2020-12-09 52 Translation of original instruction
TX4414 EN
T
X
4414
_GB
_4.
fm
Speed: n (rpm)
Workpiece diameter: d (mm)
Cutting depth:
In order to achieve a good chipping, the results of the depth of cut divided by the feed shall re-
sult in a figure between 4 and 10.
Example: ap = 1.0 mm; f = 0.14 mm/rev ; and this equals to in a value of 7.1 !
Feed:
The feed for rough turning is to be selected in a way that it does not exceed half the value of the
corner radius.
Example: r = 0.4 mm ; equals to fmax. = 0.2 mm/rev !
For planing/turning the infeed should be maximum 1/3 of the corner radius.
Example: r = 0.4 mm ; equals to fmax. = 0.12 mm/rev !
4.21 Thread cutting
4.21.1 Module and D.P. threads
INFORMATION
In countries where the Anglo-American system of measurement is used, its inverse is used as a
"diametrical pitch" (D.P.) with the unit 1 inch instead of the module.
4.21.2 Thread cutting
The thread cutting in longitudinal direction is carried out with the lead screw.

Set the desired pitch.

Set the engaging lever (5) for thread-cutting on apron to the down position (lead screw nut
closed). The engaging lever for longitudinal and cross feed (feed rod) (8) on apron must be
set to the neutral middle position.
INFORMATION
Due to a safety mechanism, it is not possible to use the

longitudinal feed via the lead screw and

cross feed / longitudinal feed with feed rod
at the same time.
The thread cutting process requires that the operator has a good knowledge of turning and suf-
ficient experience.
NOTES!
Example of an external thread:

The workpiece diameter must have been turned to the diameter of the desired thread.

The workpiece requires a chamfer at the beginning of the thread and an undercut at the
thread run out.

The speed must be as low as possible.

The thread cutting tool must be exactly the same shape as the thread, it must be absolutely
rectangular and must be clamped in a way that it coincides exactly with the turning centre.
Module =
25.4
D.P.