SANDVIK COROMANT unveiled the second generation of its CoroTurn® Prime B-type inserts. The new, double-sided negative insert features four cutting edges and is designed for roughing and finishing in steel, stainless steel and duplex stainless steel, HRSA, and titanium.
Since it was introduced in 2017, PrimeTurning™ has made it possible to conduct turning in all directions, and is a productive and efficient alternative to conventional machining. The technology portfolio consists of the PrimeTurning method, CoroTurn Prime A- and B-type tools and the CoroPlus® Tool Path for PrimeTurning software.
The second-generation CoroTurn Prime B-type tools have been updated. “We are continuously working on developing our PrimeTurning offering,” according to Staffan Lundström, product manager at Sandvik Coromant. “The new B-type tools are improved in all aspects to further support all-directional turning.”
A noteworthy revision to the design is that the new insert is negative and double-sided. Four cutting edges — twice as many edges, compared to the previous insert — allow more cost-efficient machining. Also, the new tool is equipped with a tough, tip seat design that prevents tool breakage if the insert breaks and allows shifting of feed directions without insert movements. Furthermore, the geometries are updated for better chip control even in very challenging materials, such as duplex stainless steel and ductile steels.
Comprehensive test results have shown productivity increases ranging from 50 percent to over 100 percent. In one example offered by Sandvik Coromant, an automotive customer producing pump housings – using the new CoroTurn Prime B-type inserts with turning grade GC4415 – the -M7 geometry and R1.6 mm gave predictable edge wear and better chip control. Productivity and tool life increased by 115 percent and 200 percent, respectively.
The new CoroTurn Prime B-type inserts are available for external and internal turning in a range of high-performing grades, including the new steel turning grades GC4415 and GC4425. Programming support is available in the most common CAM platforms and with CoroPlus Tool Path for PrimeTurning.
Learn more at www.sandvik.coromant.com