Tungaloy Launches DoFeedTri High-Feed Milling Series to Improve Productivity and Reduce Machining Costs in Mold Manufacturing!

Tungaloy-NTK America Inc. has introduced the DoFeedTri high-feed milling series at IMTS 2026, offering mold manufacturers a high-performance cutting tool solution designed to improve machining efficiency, increase productivity, and reduce tooling costs. Developed for complex mold and die machining applications, the new milling series features double-sided trigonal inserts with six usable cutting edges, enabling manufacturers to achieve a significantly lower cost per cutting edge while maintaining high levels of machining stability and precision. The DoFeedTri system is engineered to support demanding roughing and semi-finishing operations across a wide range of materials, making it a versatile solution for modern moldmaking environments.

As mold and die manufacturers continue to machine increasingly complex geometries using hardened steels and difficult-to-cut materials, the need for cutting tools that combine productivity, reliability, and cost efficiency has become increasingly important. High-feed milling has emerged as one of the most effective machining strategies for improving metal removal rates while reducing cutting forces and extending tool life. Tungaloy’s DoFeedTri series has been developed to maximise these advantages through an innovative insert design that enhances both machining performance and economic efficiency.

A key feature of the DoFeedTri system is its double-sided trigonal insert geometry, which provides six usable cutting edges from a single insert. Compared with conventional milling inserts that typically offer four cutting edges, the new design significantly reduces tooling cost per edge while increasing insert utilisation. This allows manufacturers to maximise the value obtained from each insert, lowering overall tooling expenses and improving production economics, particularly in high-volume mold manufacturing operations.

The trigonal-shaped insert has also been engineered to provide exceptional rigidity during machining. Its large contact surface ensures secure insert retention when clamped to the cutter body, preventing insert movement even under demanding cutting conditions. Stable insert positioning contributes to improved machining accuracy, consistent cutting performance, and enhanced tool reliability throughout extended production runs.

Another important design advantage is the cutter’s low entry angle of approximately 12 to 12.5 degrees. This geometry directs the majority of cutting forces in the axial direction rather than radially, reducing vibration and minimising chatter during machining. Lower cutting forces improve machining stability, particularly when using long-overhang tool assemblies that are commonly required in deep cavity mold machining. Improved stability also enables manufacturers to achieve better surface finishes while increasing confidence during aggressive machining operations.

The strong cutting edge design further contributes to longer tool life and reliable machining performance at higher feed rates. By maintaining edge integrity under demanding cutting conditions, the DoFeedTri series enables manufacturers to increase material removal rates while reducing the frequency of tool changes. Longer tool life not only lowers tooling costs but also minimises machine downtime associated with insert replacement, improving overall production efficiency.

The milling series has been specifically optimised for ramp-down operations, where efficient material removal is essential for reducing cycle times. A long inner cutting edge allows the insert to remove more material than conventional milling inserts during ramping operations. This design improves cutting efficiency while enabling higher maximum ramping angles, making the tool particularly effective for helical interpolation, pocket machining, cavity roughing, and complex mold machining applications.

Enhanced ramping capability provides greater flexibility for manufacturers machining intricate mold geometries where conventional cutters may struggle to maintain productivity. By supporting faster and more efficient entry into workpieces, the DoFeedTri system helps reduce overall machining time while maintaining excellent cutting stability throughout the process.

To address different machining requirements, Tungaloy offers the DoFeedTri inserts in two advanced grades. The AH3225 grade has been developed primarily for steel machining applications, delivering excellent wear resistance and stable cutting performance across a broad range of carbon and alloy steels. For more demanding applications involving hardened steels and heat-resistant superalloys, the AH8015 grade provides enhanced performance through improved wear resistance and cutting edge durability, making it suitable for machining difficult materials commonly used in moldmaking and aerospace industries.

The DoFeedTri cutter range is available in metric diameters from 16 mm to 80 mm, while imperial sizes range from 0.625 inches to 4.0 inches. This wide selection enables manufacturers to choose the most appropriate cutter size for various machining operations, ranging from smaller precision cavities to larger roughing applications. The availability of multiple cutter sizes increases the versatility of the system and allows shops to standardise tooling across different production requirements.

The introduction of the DoFeedTri series reflects the growing demand within the mold and die industry for cutting tools capable of delivering higher productivity while reducing manufacturing costs. As mold designs become increasingly complex and lead times continue to shorten, manufacturers require tooling solutions that improve machining efficiency without compromising precision or surface quality.

By combining six-edge double-sided inserts, stable cutter geometry, reduced chatter, superior ramping capability, and advanced insert grades, the DoFeedTri high-feed milling series provides mold manufacturers with a comprehensive solution for improving machining performance. The system enables higher metal removal rates, longer tool life, lower tooling costs, and greater process reliability across a broad range of moldmaking applications.

With the launch of the DoFeedTri series at IMTS 2026, Tungaloy continues to strengthen its portfolio of advanced cutting tool solutions that help manufacturers increase productivity, reduce operating costs, and achieve consistent machining performance in today’s increasingly demanding precision manufacturing environment.