Walter says it has introduced a new and innovative cutting geometry, the MS3, teamed with a new high tech grade, WSM01. The new WSM01 grade, manufactured using the HiPIMS (high-power impulse magnetron sputtering) method, provides extremely smooth surfaces that are characterized by excellent layer thickness, outstanding layer bonding and high-level wear resistance, according to the company.

The combination of the HiPIMS PVD coating and the new MS3 geometry is ideal for machining ISO S materials with difficult cutting properties, such as high-temperature alloys, titanium, cobalt-based and nickel-based alloys. Secondary applications for this new grade/geometry combination are steel, stainless steel and nonferrous material groups (ISO P, M and N).

Negative inserts with MS3 geometry are available with both sintered and fully ground circumference. Their smooth surface and extremely sharp cutting edges keep build up to a minimum and ensure a high quality surface finish. This makes it significantly easier to reliably manufacture burr-free components. The new insert is particularly suitable for machining unstable or thin-walled components and setups with long overhangs, since its highly positive geometry provides low cutting pressure and prevents vibration. The MS3 insert – much like Walter's RM5 – is equipped with coolant jet guiding geometry to ensure optimal cooling directly on the cutting edge. It is well-suited to turning applications and to medium machining applications in the aerospace industry, medical components manufacturing, general mechanical engineering and the automotive industry.