CBN Cutting Materials Programme Fundamentally Updated
Sumitomo, a pioneer in the development and leading global manufacturer of high-quality CBN cutting materials, is currently expanding its programme of CBN grades.
These contribute significantly to the fact that CBN can be used as a universal cutting material beyond the usual applications - hard and finish machining of hard cast materials.
This applies in particular to the CBN grade NCB100. This is the only binderless CBN in the world that is suitable for efficiently machining difficult-to-cut materials such as titanium, Inconel and cobalt-chrome. This CBN grade is therefore ideal for finishing operations in medical technology.
Another highlight in Sumitomo's CBN programme is the BN7115 grade. As the latest development from the Japanese specialists, this cutting material with a very high content of pure CBN has outstandingly stable cutting edges. This means that cutting inserts made from BN7115 can be used to reliably machine hard sintered metals in particular.
The CBN cutting materials from the BNC series recently introduced by Sumitomo are optimised primarily for process-reliable hard machining.
- The BNC2105 grade is particularly wear-resistant and is suitable for finishing at high cutting speeds.
- BNC2115 is designed for precision machining with high surface quality.
- The CBN grade BNC2125 proves to be universal and works with sufficient process reliability even with interrupted cuts.
- The new BNC2135 grade, which will be available from 2023, is significantly more stable. It is designed for difficult conditions with heavily interrupted cutting.
Manufacturing companies can realise further improvements in the machining of GG, GGG and hard cast alloys with the CBN cutting materials grades BN7125 (finishing of GG), BNS8125 (roughing of GG) and BNC8115 (highly efficient machining of GG, GGG and hardened steels, even at large cutting depths). Sumitomo will also be making these available to users in Europe next year.