hpt 2022 #4

Turns on, stays cool:
Precision tool cutting edge cooling
materials & tools
Optimised cooling lubrication: with the DirectCooling system from CERATIZIT, two coolant holes that are aimed
at the cutting edge cool and lubricate extremely efficiently, and clear away chips as quickly as possible –
now also with the MaxiLock-S DC turning tools holder
What is good for the inside can also be good for
the outside. That is what the development specialists at
CERATIZIT thought when upgrading the tried-andtested
MaxiLock-S turning tool holder to the Direct-
Cooling holder. Two nozzles apply coolant now directly
to the cutting edge – enabling tools to give wear the
cold shoulder.
More is more – this principle still dominates coolant delivery
but change is coming. With a focus on sustainability and
the efficient use of resources, the smart successors to flood
coolant/lubrication are already waiting in the wings. Accurate
not liberal, precisely applied not spurted on – these are the
arguments in favour of the DirectCooling (DC) system from
CERATIZIT that bring a minimalist approach to machining
companies.
Precisely on the hot zone
The typical scenario in a turning center is that a hose distributes
the coolant extensively on the machining area. The new
MaxiLock-S DC turning tool holders, which supplement the
DirectCooling (DC) system, provide a different way of doing
things. The holders feature two internal holes ensuring that
the coolant is applied precisely to the cutting edge, with one
hole targeting the rake face from above and the other the
flank from below, proving that not all good things come from
above. By contrast, flank cooling boosts the service life by
60 % compared with cooling exclusively on the rake face.
DC can also now do it
“We wanted to take what has since became the norm for
grooving holders and apply it to our turning tool holders
for external turning applications too. This resulted in the
MaxiLock-S DC range, which allows customers to boost
both general process security and cutting values thanks
to targeted cooling. Compared with conventional cooling,
DirectCooling achieves service life improvements of around
65 %, regardless of material and machining application,”
explains Stefan Karl, product manager Cutting Tools at
CERATIZIT. Also the insert seat has been reworked. This
makes it possible to clamp the turning indexable insert with
even more stability, which reduces wear on the cutting edges
and creates better surfaces on the workpiece.
DirectCooling can be used for any application and works
from a coolant pressure of just 10 bar. The coolant must only
be transferred via the turret of the turning center or turningmilling
center, which is the case in most recent machines.
“The higher the pressure, the better chips are broken and
cleared away. This is particularly beneficial to those who
machine steels and is also excellent in combination with our
new ISO-P indexable insert. However, the MaxiLock-S DC
is just as comfortable on stainless and difficult-to-machine
materials,” says Stefan Karl.
Flexible and stable with a system
Interference contours are a common problem during
machining, but not for the holders from the DirectCooling
series. Their lengths have all been ideally matched to one
another and also offer optimal stability and unlimited flexibility.
The nozzles of the new MaxiLock-S DC turning tool
holder can also be replaced – for long, accurate cooling.
further information: www.ceratizit.com
no. 4, November 2022
15