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New range of miniature shoulder-milling cutters

Posted on 26 Apr 2022 and read 935 times
New range of miniature shoulder-milling cuttersCannock-based Tungaloy UK Ltd has launched a new series of products. The global launch of Addforce introduces the very latest cutting tool innovations for improving customer productivity by accelerating machining operations. As part of this new brand launch, Tungaloy has also extended its indexable square shoulder milling system Tung-Tri with an extremely small new size 04 insert which has a 3.5mm cutting edge length that makes this new arrival compatible with tool body diameters from 8 to 25mm diameter.

The Tung-Tri 04 insert has a 4mm inscribed circle, yet it delivers the same benefits of light cutting and long tool life that existing Tung-Tri inserts have already been providing for manufacturers.

This enables the Tung-Tri 04 to generate up to double the tooth density when compared to alternate similar tools and subsequently higher feed rates. This compact configuration enables a 16mm diameter Tung-Tri 04 cutter to offer four inserts per cutter whereas the 25mm diameter cutter can facilitate six teeth. This insert density is common throughout the Tung-Tri series, ensuring that all tool body diameters and insert designations can offer maximum productivity levels and feed rates for end users.

Complementing the new compact 04 inserts are tool bodies for size 06, 10 and 15 inserts. The 06 inserts are suitable for 12 to 50mm diameter tool bodies with 25 to 100mm diameter for the size 10 inserts and 40 to 160mm diameter bodies for the size 15 inserts. This expansive range now ensures maximum productivity levels for components that demand high-speed cutting.

Three-edged inserts

The new Tung-Tri series uses three-edged inserts that are developed specifically to deliver precision, productivity and cost efficiency for shoulder milling applications. This allows users to choose an optimal tool set up according to the given part sizes and the required material removal volume.

For the high-speed machining of components that are near-net-shape that require minimal machining such as additive manufactured parts and forged or cast components, the Tung-Tri is the ideal solution. The cutter also offers an impressive alternative to face mill cutters when face milling long reach areas. This is credit to its wiper edge geometries that create excellent surface finish, eliminating the need for secondary processes for high-quality surface finishes.

As an economical shoulder milling series with an extensive line-up, Tung-Tri offers cost-efficient three-edged inserts that have helical cutting edges with large axial and radial rake angles. This design generates extremely low cutting forces making it suitable for lower-powered machines, it also enhances precision when machining work to tight tolerances.

The inserts are now available in three different chip former styles — the general-purpose MJ geometry, the AJ geometry for non-ferrous applications and the NMJ with a serrated-edge chip splitter for efficient large-volume material removal. The tool bodies are available in small-diameter cylindrical shanks, shell styles toolholders or as large-diameter porcupine cutters for roughing processes. This ensures the new Tung-Tri can be applied to a diverse range of machining applications.

The insert cutting edge is designed with an innovative flank profile with multiple relief angles providing sharpness that generates low cutting forces and robustness that minimises the potential for insert fracture. In addition, the variable-pitch cutter body reduces chatter generation and creates a smooth cutting action.