NMS and NRS geometries

Description

For high temperature alloys

When machining materials that are difficult to cut (ISO S), there is a wider range of workpiece materials than with steel and cast iron machining. Walter has therefore developed two geometry ranges for ISO S machining. Walter NMS and NRS for high temperature alloys, such as Inconel 718, and Walter NFT, NMT and NRT for titanium alloys, such as Ti₆Al₄V.

The main sign of wear when machining high temperature alloys is the formation of notches and cutting edge build-up. In contrast to this, in titanium machining, indexable inserts must above all be resistant to crater wear.

• low cutting pressure for reliable machining of unstable components (e.g. turbine housings)
• reduced heat development when machining highly heat-resistant alloys
• up to 150% increases in tool life for NMS and NRS geometries thanks to Tiger•tec® WSM10 and WSM20 coating.
• NMS geometry - medium machining/semi-finishing

• NRS geometry - roughing