Efficient, economical and highly productive turning operations have been taken to a new level with the arrival of the new TurnTenFeed turning series from Wolverhampton-based Tungaloy UK (www.tungaloy.com/uk).

The new tool-holder and indexable insert line is suitable for heavy industrial applications that demand a productive ‘all-rounder’ for general and large-part machining.

The heavy-duty series has been developed with a double-sided 10 cornered M-class insert that can offer depths of cut up to 7mm and a maximum feed per revolution of 2mm.

To attain robust and rigid machining conditions, Tungaloy has introduced two tool-holder configurations: the HF tool-holder for high-feed turning and the HD tool-holder for large depths of cut.

Theses are available with shank dimensions of 25mm or 32mm square, and a precision seat ensures uncompromising positional repeatability and clamping stability, underpinned by a dovetail clamping system that improves chip flow.

Furthermore, with just a spring pin, lever and clamping screw, the TurnTenFeed allows rapid insert changes with a high level of positional repeatability.

These tool-holders have been developed with a 108deg obtuse angle; while this design has not been developed for machining corners, the material removal capabilities and productivity rates offer machining efficiency improvements up to 130% (proven under test conditions).

To achieve such productivity gains, the R&D engineers at Tungaloy have introduced a new MNW chip-breaker that features protrusions on the rake face to facilitate smooth and efficient swarf flow, while achieving exceptional crater- and wear-resistance.

In addition, the 10-sided inserts have been designed with a straight-wiper design that is built into the cutting edge to facilitate a high level of machining performance and high feed rates.

The new TurnTenFeed inserts have been produced with three different Tungaloy grade compositions that cater for the complete range of steel, stainless steel, cast iron and challenging aerospace-grade aluminium, nickel and cobalt alloys.

The T9125, T9215 and T9225 insert grades have a TiCN and TiAlN coating that maximises tool life, consistency and performance when machining large components or performing unmanned machining.