Mitsubishi is expanding its MC6100 range of inserts to include MC6135, a tough grade for

applications that range from continuous turning through to rough and interrupted cutting. This new grade will complement the existing range and provide end users with a choice to machine a vast array of steels and of different applications.

MC6135 utilises crystal-orientation control technology that enables thinner but

still impact-resistant coatings for improved chipping and wear resistance. Such features are optimal for use on the tough MC6135 grade. Additionally, the coating is 50% thinner compared with previous types.

In cutting trials of interrupted cutting on DIN 41CrMo4 material, Mitsubishi found the tool life of MC6135 to be 20% more than conventional grades.

Regarding the existing range, MC6115 is a CVD-coated turning grade for steel workpieces that is capable of high-speed machining with its high levels of cutting edge stability. MC6125 grade is versatile, enabling an easy first choice start point when choosing an insert for turning steels and thereby reducing inventory levels.

Both grades have CVD coatings that provide the double benefit of cutting edge stability

and long tool life for machining a wide range of steels, reports the company. MC6115 has the combination of a high hardness base material and new thick Al2O3 outer coating with

improved wear and peeling resistance at high temperatures, while MC6125 has the combination of a tough base material and the advantages of Al2O3 coating. It also has higher peeling resistance and cutting edge stability, achieved through the application of super Tough-Grip technology. This enhances adhesion between the Al2O3 and TiCN base coating layers.

More information www.mmc-carbide.com