MV grade milling insert expansion

Mitsubishi Materials has developed an innovative series of grades that reaches across both milling and turning applications.

It is the milling application area where the large expansion of 62 new inserts for 5 different milling cutters are now available. This expansion was driven by the high performance and success of the first tranche of MV grade inserts that were released for 7 popular milling cutters.

The feedback from the market was that the MV1020 and MV1030 grades should be available for a wider range of milling inserts for more types cutter. These new inserts can be used on the larger AHX640 cutter, the APX series and in the popular round type ARP and BRP cutter bodies. Last but not least, the popular, high feed AJX type cutters can now be fitted with the MV grades.

MILLING – PERFORMANCE and VERSATILITY
The MV1000 series includes 2 grades for milling, MV1020 and MV1030 for machining a wide range of materials from alloy and stainless steels through to cast iron.

MV1020 : This grade has advanced wear and thermal shock resistance and also achieves stable cutting at unprecedented cutting speeds, especially when machining steel and ductile cast iron, this provides the benefit of greatly reducing work time.

MV1030 : The new Al-Rich coating also provides excellent wear resistance. With an extreme ability to prevent sudden breakage, class leading reliability was also realised especially during problematic wet cutting where thermal shock is prevalent. This same benefit of reliability is also realised when machining stainless steels.
The key feature of these innovative grades is due to the adoption of the newly developed AL-Rich coating method.

This advanced CVD coating of aluminium titanium nitride (Al,Ti)N is a compound of aluminium and titanium that is widely used as a coating for advanced cutting tools because of its extremely hard and heat-resistant properties. The hardness of (Al,Ti)N increases as the Al content ratio increases, but with conventional technology, when the Al content ratio exceeds 60%, the crystal structure changes and the hardness of the (Al,Ti)N decreases.

Using a new coating process based on Mitsubishi Materials‘ own original technology. This a way in which the Al-Rich coating does not change its crystal structure even when the Al content is increased. This enables a higher Al content and a provides a higher hardness (Al,Ti)N.