The possibility to apply the best insert shape to maximize strength and to apply the most suitable entering angle is dependant on how extensive a turning tool program is. It is also for the necessary cutting edge to be available in the right insert form and size to both optimize the operation but also provide good tool economy. The choice between round insert and square insert with a specific geometry and nose radius can be decisive in optimizing operations — in both roughing and finishing operations.

Insert Geometry: Various Shapes

Insert geometry HD, for rough turning steel, is a new development in double-sided inserts. Available in various insert shapes to maximize strength in S-shaped inserts or add versatility in C-shape inserts. This is an ideal insert, specifically developed for large cutting depths in steel forgings. Very strong cutting edges and wide chipbreaking areas mean it can withstand heavy variations throughout a large feed range.

A particular advantage with this new geometry is that when combined with the right insert-grade of the GC4000 series, performance can be optimized to new, higher levels. Particular issues such as with plastic deformation of and crater wear on the cutting edge can be contained throughout a longer tool life.

Insert Evolution

Wiper technology for finish-turning inserts has evolved considerably since its introduction a decade ago. This new way of designing the nose radius of an insert did away with the conventional problem of radius size to feed per revolution and its effect on surface finish. Feeds could be doubled while maintaining the same surface finish through a carefully developed nose shape for the engagement of the finishing cut.

New Geometry Equals Larger Feed Rate

WMX is the new generation of wiper inserts that can achieve the required surface finish much faster than inserts with a conventional nose radius. The main radius with multiple complimentary radii has been designed as part of a new chipbreaking geometry that has provided the insert with a much larger feed range. The WMX wiper insert can also be applied to medium roughing operations. Compared to the previous generation of wipers, the insert also gives even better surface finish, is less prone to vibration tendencies, better chip control and smoother cutting action. The large central application range of WMX is complimented by a range of additional wiper geometries which can be used for optimization at very low feed/depth-of-cut values or for even larger depths of cut.