PrimeTurning concept, solution

PrimeTurning concept, solution

April 6, 2017

Sandvik Coromant

Sandvik Coromant officials have unveiled a new turning concept that offers improved machining flexibility and the potential for significant productivity gains. The company’s PrimeTurning methodology and supporting tools provide manufacturers with an all-directional turning solution.

Unlike conventional turning operations, which have remained largely unchanged for decades, PrimeTurning allows machine shops to complete longitudinal (forward and back), facing, and profiling operations with a single tool. The methodology is based on the tool entering the component at the chuck and removing material as it travels towards the end of the component, allowing for the application of a small entering angle, higher lead angle, and the possibility of machining with higher cutting parameters. In addition, conventional turning (from part-end to chuck) can be performed using the same tools.

Some applications could see productivity increases in more than 50% through the deployment of PrimeTurning rather than conventional techniques, some a result of the small entering angle and higher lead angle, which creates thinner, wider chips that spread the load and heat away from the nose radius. The result is increased cutting data and extended tool life. In addition, as cutting is performed in the direction moving away from the shoulder, there is no danger of chip jamming (a common and unwanted effect of conventional longitudinal turning). Higher machine use as a result of reduced setup time and fewer production stops for tool changes also enhances overall productivity.

PrimeTurning is initially supported by the introduction of two dedicated CoroTurn Prime turning tools and the PrimeTurning code generator, which supplies optimized programming codes and techniques. CoroTurn Prime inserts have three edges/corners; one for longitudinal turning, one for facing, and one for profiling; thus, delivering efficient edge utilization and longer tool life.

Two inserts are offered: CoroTurn Prime A-type features three 35° corners and is designed for light roughing, finishing and profiling, while CoroTurn Prime B-type, with its ultra-strong corners, is designed specifically for rough machining. Suitable for ISO P (steel), S (heat-resistant super alloys and titanium), and M (stainless steel) category materials, nine CoroTurn Prime A-type and six CoroTurn Prime B-type inserts are currently available, with expansion to other materials planned for the future. The inserts are supported by 52 variants of tool holders, including Coromant Capto, CoroTurn QS, and shanks.

The PrimeTurning code generator not only ensures maximum output but also process security with suitably adjusted feed rate and entry radius parameters. It creates ISO codes that are compatible with various CNC systems.