OPTIMUM
M A S C H I N E N - G E R M A N Y
Version 1.0.1 dated 2018-01-31
Page 42
Translation of the original instructions
TM4010 | TM4010D
GB
T
M
4010_
T
M
4010D_G
B_4
.f
m
4.13.4 Influencing factors that significantly impact the tensioning force
Clamping jaw centrifugal force
To calculate the required tensioning force for processing a workpiece, the centrifugal force of
the clamping jaws must be taken into account.
The permissible speeds can be determined in accordance with VDI Guideline 3106 "Determin-
ing the permissible speed for lathe chucks (jaw chucks). This guideline also allows for the resid-
ual tensioning force at a specified speed to be determined.
Fc
Centrifugal force in N
m
Mass in kg/set
rs
Centre of gravity distance to the centre of the chuck in
metres
n
Speed min
-1
r
0
Centre of gravity distance to the clamping jaw
Base tensioning force
Required minimum tensioning force
Clamping force
Centrifugal force
Speed
Ef
fecti
ve
tensioning force
Workpiece is
released uncontrollably