Due to the vast range, machining ISO-P steels is anything but simple. To make machining the biggest material group in metal machining easier for machine operators, we have rethought everything from the substrate to the geometries, right through to the coating – for optimal breakage resistance and hardness of cutting edges. The Dragonskin coating makes a decisive contribution here. Its optimised structure is designed specifically to increase tool life and reduce machining time. Mechanical post-treatment enables us to achieve the layer surface's unique state of residual stress, which pays off in terms of increased process security, especially in large-scale production. In comparison with our predecessors, the indexable inserts for grades CTCP135-P, CTCP125-P and CTCP115-P achieve up to twenty-percent-longer service lives.
Once it reaches the end of its life cycle, every cutting insert experiences a drop in performance. If pushed to its limit, it can even break – and endanger the entire process. However, if the user identifies the wear using the new indexable insert indicator layer, they can replace it in a timely manner. At the request of our customers, we have incorporated this feature into the latest generation of the steel turning grade in the form of the special Dragonskin coating – for stable and conflict-free processes!
Thanks to the CVD multilayer coating with the Dragonskin coating technology, the indexable inserts are ideally suited to versatile steel machining. In combination with a balanced carbide base substrate, the new grades in the ISO-P category boast a wide application area with improved wear resistance.
Depending on the cutting conditions, the perfect cutting material can be selected from three grades:
CTCP115-P
CTCP125-P
CTCP135-P
Indexable insert: CNMG 120408EN-M50
Material: 1.2343 – X37CrMoV 5-1 44 HRC
Cutting data: vc 70-130 m/min | f 0.35 mm/U | ap 2 mm
| Cutting speed vc | Increase in % |
| 70 m/min | 20 |
| 100 m/min | 44 |
| 130 m/min | 45 |
Wear detection means that optimum utilisation of the multi-edged indexable insert can be identified with a quick glance at the cutting edges. Wear on the cutting edges is also easier to see and easier for the machine operator to identify.
→ 10 cuts
→ 1 cut
In episode 7 of THE CUT, host Brian Lorenzen, Product Manager Stefan Karl and Innovation Managerin Kathtrin Weirather are talking about the challenges of turning steel, the latest developments in turning and our new ISO-P grades with indication layer - the perfect fit for turning steel.