FM4 Positive Inserts

September 09, 2016

Walter has launched a major extension of its turning geometry program with new products that bring Walter precision and reliability to a range of new applications. Extensions include the FM4 positive inserts. Engineered for finishing stainless and high temperature alloys (ISO M, S), these inserts have excellent chipbreaking capabilities at low feed rates and low cutting depths. They are available in grades WSM10S, WSM20S and WSM30S.

Walter’s RM4 positive inserts are targeted at stainless and high-temperature alloys (ISO M, S) for roughing and medium machining operations. They are available in grades WSM10S, WSM20S, WSM30S and WMP20S.

The new FP6 positive inserts excel at finishing steels (ISO P) and provide superior chip control. They are available in grades WPP10S and WPP20S. The FP6 is a productive alternative to FP4 and MP4 and replaces PS5 in steel applications.

Walter’s FK6 positive inserts, available in grades WKK10S and WKK20S, are engineered specially for finish to medium machining. They are an alternative to MK4 and replace PS5 in iron applications.

Importantly, the Walter turning program extension also includes positive wiper inserts for PF and PM geometries. These inserts provide high surface quality and high feed rates. They also give users the flexibility of choosing to maintain their current surface quality with double the feed rate or 50 percent lower surface roughness with their current feed rate.  

Related Glossary Terms

  • alloys

    alloys

    Substances having metallic properties and being composed of two or more chemical elements of which at least one is a metal.

  • feed

    feed

    Rate of change of position of the tool as a whole, relative to the workpiece while cutting.

  • turning

    turning

    Workpiece is held in a chuck, mounted on a face plate or secured between centers and rotated while a cutting tool, normally a single-point tool, is fed into it along its periphery or across its end or face. Takes the form of straight turning (cutting along the periphery of the workpiece); taper turning (creating a taper); step turning (turning different-size diameters on the same work); chamfering (beveling an edge or shoulder); facing (cutting on an end); turning threads (usually external but can be internal); roughing (high-volume metal removal); and finishing (final light cuts). Performed on lathes, turning centers, chucking machines, automatic screw machines and similar machines.

  • wiper

    wiper

    Metal-removing edge on the face of a cutter that travels in a plane perpendicular to the axis. It is the edge that sweeps the machined surface. The flat should be as wide as the feed per revolution of the cutter. This allows any given insert to wipe the entire workpiece surface and impart a fine surface finish at a high feed rate.

Additional Products from Walter USA LLC

Walter has developed the Insert Converter app, which quickly shows the insert selection with the latest Walter grades and chipbreaker geometries for an application. It is aimed at anyone who wants to enhance their machining process, increase tool life and process reliability, or improve their…

The DA110 Perform drill from Walter can be used universally and cost-effectively for a wide range of materials. It delivers maximum accuracy thanks to its precision-ground surfaces and a tip geometry that has been engineered for optimum centering accuracy, while keeping production costs as a…

The M4258 modular helical milling cutter from Walter, the most recent addition to its M4000 family of high-performance helical milling cutters, brings cost efficiency and excellent process reliability to slot milling, and can be used for ramping, pocket milling, shoulder milling and circular…

The new versatile high-performance TC420 Supreme thread former from Walter features a new substrate and a new polygon geometry that provides better forming behavior, less friction and longer tool life. In addition, its polished surface yields a better surface finish than is achieved with thread…

Walter has introduced the new A60 and AG60 inserts for small to medium pitch threads. Just like the existing MX geometries (CF5 and GD8 for grooving and parting, RF5 for grooving and copy turning), the new MX geometries A60/AG60 provide long tool life, fine surface quality and process reliability.…

The new Cermet WEP10 indexable turning inserts from Walter deliver long tool life and high productivity. Their fine-grain titanium carbide substrate with Ni/Co binder produces a stable cutting edge. Combined with an extremely hard TiCN outer layer, this grade provides multiple advantages during…

Walter has introduced WSM01, a premier grade for demanding machining applications. Coupled with Walter’s new MS3 negative geometry, it produces burr-free results with high surface finish quality in the hardest materials.

The versatile new DC160 Advance solid-carbide drill from Walter delivers high productivity in a wide variety of materials and can be used universally in an extremely broad range of applications. The newly designed drill offers many advantages. The margins are located in an advanced forward position…

Walter has introduced the D4140 indexable insert drill, a tough and versatile new drill that delivers enhanced process reliability and extended tool life. The D4140 advantage stems from its design and construction, featuring a hardened and polished surface that offers exceptional resistance to…

Walter has introduced the Walter Prototyp ceramic milling cutters MC275/MC075. These two new tools deliver significantly increased productivity, cutting speeds and high metal-removal rates in the machining of nickel-based alloys.

PRODUCTS

11/20/2024
Jorgensen Conveyor and Filtration Solutions, Mequon, Wisconsin, highlighted its distinctive…

10/23/2024
The Starrett AVR400 offers full CNC capabilities including X-Y-Z positioning and comprehensive zoom…

10/23/2024
TIN Coated Thread Gages have high dimensionally stable HSS construction with TIN coating that…