Operation
Version 1.0.1 dated 2017-11-16
Page 51
Translation of the original instructions
TX6222
GB
T
X
6222
_GB
_4.
fm
OPTIMUM
M A S C H I N E N - G E R M A N Y
®
4.20
Displacing the top slide on the cross slide
Loosen the four clamping screw at the top slide.
Twist the top slide to the left and right until the four clamping screws are visible.
Loosen the clamping screw and move the top slide on the cross slide.
Tighten all screws.
4.21
Standard values for cutting data when turning
The better the cutting data are selected, the better the turning result. Some standard values for
cutting speeds of different materials are listed on the following pages.
Criteria of the cutting conditions:
Cutting speed: Vc (m/min)
Depth of cut: ap (mm)
Infeed: f (mm/rev)
Cutting speed:
In order to get the speed for the machine settings of the selected cutting speeds the following
formula is to be applied:
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 !
Clamping screws
n =
Vc x 1000
d x 3.14
