Desoutter CVIC - Appendix - Tightening Strategies

6159932010-09
53 / 60
English
CVIC-MODCVIC-MULTICVIC
Torque-controlled tightening
The recorded value is: the peak torque
Spindle stop if torque ≥ target torque
Accept report
IF min. torque ≤ peak torque ≤ max. torque
Optional : current monitoring
IF min. torque ≤ peak torque ≤ max. torque
AND min. current ≤ final current ≤ max. current
Torque + angle controlled tightening
The start of the angle threshold
counting should be within the
linear area of the torque
increase.
The angle measurement takes
into account the torsion/back
torsion of the spindle by
measuring the angle during the
torque drop phase, until the
threshold value of the angle
counting start is overstepped.
The recorded values are: the
peak torque and the final angle
Spindle stop
IF torque ≥ target torque OR angle > safety angle
Accept report
IF min. torque ≤ peak torque ≤ max. torque
AND min. angle ≤ final angle ≤ max. angle.
Appendix - Tightening Strategies
T o r q u e
T a r g e t t o r q u e
T i m e
M i n
M a x
T a r g e t
S
e a r c h s e q u e n c e
R u n d o w n s p e e d
F i n a l s p e e d
R u n d o w n t o r q u e
T a r g e t
P e a k T o r q u e
F i n a l a n g l e
T i m e
A n g l e T o r q u e
M a x
M i n
M a x
M i n
A n g l e
T h r e s h o l d