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TIGHTENING STRATEGIES
Select tightening strategy by choosing the method for applying clamping
force (or preload) to the joint. Different joints require different strategies for
applying the desired clamping force and to minimize unwanted in-service
effects.
The Turbo Tight
®
strategy enables the option to use Manual programming or
Quick prog, see section Strategy. The Quick step, Two step, and Three step
strategies enable the choice of tightening towards a Target torque or a Target
angle value, see section Target.
All tightening strategies require that you set either Target torque or Target
angle value.
Turbo Tight
®
Tightening Strategy
Turbo Tight
®
is the default tightening strategy, designed to perform a very
fast and ergonomic tightening based on the tool’s maximum speed (Tool
max speed). This strategy only requires Target torque to be set in order to
perform the tightening. Depending on the joint properties, for example if the
joint is very stiff or very soft, a different tightening strategy might be needed.
Note! The Turbo Tight
®
strategy is only available when using the Tensor STR
tools.
Fine-tuning the Turbo Tight
®
Tightening strategy
If the Turbo Tight
®
strategy gives unwanted results, we recommend you to
take look at how the Rundown complete is set.
A Rundown complete set too high could give the Turbo Tight
®
strategy too
little time to work on the needed calculations in the Tightening step, and
result in an overshoot. The ambition should be to set the Rundown complete
as close to snug as possible. A Rundown speed set too high could also cause
the Turbo Tight
®
not to have enough time to work on the needed calculations
in the Tightening step resulting in an overshoot. This is even more important
if the joint is very stiff.
Reduced cycle times
Turbo Tight
®
optimizes the tightening speed to achieve the fastest possible
tightening maintaining reliable accuracy. The results are:
• Possibility to remove bottlenecks,
• Possibility to rebalance assembly lines due to increased
cycle rate,
• Less heat development, a cooler tool during operation.
Reduced reaction force
With optimized tightening speed, the torque builds up faster,
reducing the amount of force transmitted to the operator’s hand.
The results are:
• Reduced operator fatigue and risk of injury,
• Improved operator comfort during tightening,
Reduced need for reaction absorbing devices in certain situations, giving
less cost and reduced tool weight.
Easy set-up
Turbo Tight
®
is designed to be extremely easy to set up. In most cases, you
just need to set the target torque and you’re ready to go. Exceptions are
discussed in the following chapters. In such cases please contact your local
Atlas Copco Tools representative for support. The results are:
• Time savings during set-up,
• Less time and money spent on training,
Work rotation enabled.
POCKET GUIDE TO POWER FOCUS 6000 SYSTEM
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