Cermet cutting material grade for impressive performance in finish turning
Coating update for cermet CTEP110-P grade
Reducing part costs is a must in many industrial sectors. But if you want to achieve this without impairing quality, you need tools equipped with the best cutting materials. Cermet cutting inserts are attracting increasing attention as a valid alternative to carbide indexable inserts for finishing steel. Because these cutting inserts are more heat-resistant than those made of carbide, fabricators can use higher cutting data and shorten their processes. But they are also a reliable choice in terms of service life and dimensional accuracy, as cermet cutting inserts extend the tool life – especially when outfitted with high-performance DRAGONSKIN coating including wear detection, which is exactly what our new CTEP110-P grade does.
Combining high cutting speeds with a long service life in steel finishing might sound impossible, but it's no problem at all with cermet cutting materials such as the new CTEP110-P from CERATIZIT.
With a total of four chip breakers, this cermet grade is the all-rounder for medium and finish machining, ensuring optimum chip control – even for small depths of cut.
See for yourself!
Advantages of the cermet CTEP110-P cutting material with coating upgrade:
Efficient production thanks to all-round package with optimised characteristics
- Unique multilayer CVD coating
- Gold-coloured indicator layer for insert detection
- Improved texture and grain sizes of TiCN- & Al2O3 layers
- Special post-treatment process
- Optimised chip breakers
- Perfect match between chip breakers and grade
→ Cutting edges utilised to best possible extent
→ Reduced surface roughness
→ High wear resistance
→ Maximum cutting speed
→ Optimum chip control
→ Improved service life
→ Lower costs per part (CPP)
DRAGONSKIN coating on CVD basis
We're one of just a few manufacturers who offer CVD-coated cermet indexable inserts. Why do we do this? Even though CVD layers are a notoriously tricky undertaking, they offer enormous advantages over PVD coatings for the finish machining of steels, including higher temperature resistance and improved wear resistance. Furthermore, CVD-coated cermet indexable inserts also cover a wider range of applications and are ideal for dry machining.
We did in fact make a number of optimisations when developing the new DRAGONSKIN coating for our cermet CTEP110-P grade. Based on this, we can deliver a significant reduction in surface roughness values thanks to a special post-treatment process. A clearly pronounced texture of the TiCN and Al2O3 layers ensures improved wear resistance and toughness.
On the whole, we reduced the grain sizes within the individual coating systems. Flaking of the coats isn't an issue any more either, as this is prevented by stronger bonding layers in our new Dragonskin coating. Thanks to insert detection, the machine operator only needs to take a quick glance at the indexable insert to identify unused cutting edges and ensure all edges are used.
Ideal use of inserts thanks to coating upgrade with insert detection
Machine operators can easily identify worn cutting edges, allowing them to utilise the new cermet indexable inserts to the best possible extent and avoid tedious tool breakages.
Predecessor insert with coating and without insert detection
CTEP110-P with coating upgrade and insert detection
Four chip breakers for steel machining
Thanks to four chip breakers, the new cermet CTEP110-P grade is a veritable all-rounder for medium and finish machining, while ensuring optimum chip control – even for small depths of cut. For negative inserts in the range: -CF20, the fine turning chip breaker with sharp cutting edge and ideal chip control. -TFQ for very high surface qualities or high feed rates.
We're also enhancing our range of positive indexable inserts. New additions include the periphery-ground sharp finishing geometry -CF05, which delivers a high degree of dimensional and geometric accuracy with very low cutting forces, as well as the -CF55 for good chip control and a wide range of applications.
Good to know: Where does the term "cermet" come from?
Cermet is a portmanteau of "ceramics" and "metals" and is used to describe a composite of ceramic material in a metal matrix. The aim was to develop a material that combined the properties of ceramic (oxidation and heat resistance) with those of metal (toughness and impact resistance) to create a better cutting material. The first cermet was invented back in 1931 by Paul Schwarzkopf and J. Hirschl and patented by PLANSEE. Over the years, the toughness of cermets has been further enhanced, while maintaining their positive wear properties.
Unlike conventional carbides, which are based on titanium carbide, cermet is based on tungsten carbide. Cermet was originally a TiC/Ni composite. Modern cermets contain almost no nickel and have a texture consisting of core particles of titanium carbon nitride Ti(C, N), a second hard phase of (Ti, Nb, W)(C, N) as well as cobalt as a binder.
Why choose cermet?
Cermet offers a number of advantages over carbide in certain applications, creating the conditions for very high cutting speeds in combination with long service lives. Cermet's key characteristics really come to the fore in situations where cutting fluids aren't suitable – not only is dry machining no problem, it's actually recommended. Cermet is also the optimal solution for jobs involving especially narrow tolerances, and achieves extremely smooth workpiece surfaces with extraordinary shine.
The advantages of cermet at a glance:
- High hardness and wear resistance
- High thermal shock- and oxidation resistance
- Low density
- Low thermal conductivity
- Low susceptibility to diffusion and adhesion
- High temperature resistance (up to 1800 °C)
Interested in our incredibly cost-effective cermet inserts in the CTEP110-P cutting material grade?
Then get in touch today to speak with one of our experts.
