Walter has introduced the MP6 geometry for turning operations.
The MP6 rounds off Walter’s range for medium machining of steel (ISO P). The geometry also has secondary applications in stainless steels, cast iron, and super alloys (ISO M, K, S). The MP6 combines features for medium machining, such as a positive rake angle, with features optimaized for roughing inserts, for example a strong cutting edge. This positions the MP6 as a link between the existing MP4 geometry for medium machining (with its optimized chip breaking on soft steels) and the RP4 for roughing operations (with its tough cutting edge for high feeds) The straight cutting edge of MP6 also makes it a suitable geometry for internal boring operations.
To cover a broad range of applications, Walter offers the MP6 geometry in CCMT, DCMT, TCMT and VBMT basic shapes. Its short protective chamfer, which is characteristic of roughing inserts, ensures a high strength of cutting edge, even in challenging conditions, for example when machining forged parts or components with interrupted cuts. The 18° positive rake angle maintains chip control during medium machining.
To prevent vibration, for example with thin-walled components, Walter has given the MP6 geometry an open chip breaker groove. This reduces the cutting pressure even when cutting at a higher depth of cut. This also makes the MP6 ideal for unstable workholding setups and components with long overhangs, for example during internal turning. The new Tiger-tec Gold grades also have a positive impact on tool life. The WPP10G, WPP20G and WPP30G grades are adapted to different operating conditions, thereby improving tool life and performance across a broad range. Walter specifies feeds from 0.004-0.014 in. and depths of cut from 0.016-0.157 in. as the range for the machining parameters.
