Sumitomo Expands Steel Turning Grade Series
Sumitomo’s new AC8020P turning grade features increased strength of the alumina layer, which enhances chip control and chipping resistance, as well as improves wear visibility.
Share





Sumitomo’s new AC8020P turning grade is designed to machine medium carbon and high carbon steel (alloy steel, 1053, 4140, 4137 and bearing steel 52100), as well as hard steel (~1030). Sumitomo says the new AC8020P grade was designed to compliment its existing AC8000P Series grades (AC8015P, AC8025P and AC8035P).
The new grade features increased strength of the alumina (Al2O3) layer, which Sumitomo claims enhances chip control and showcases the golden surface color for improved wear visibility. AC8020P has reportedly shown results of more than 2.5 times chipping resistance compared to conventional grades. Sumitomo recommends the EGU chipbreaker for increased cutting speeds. For applications that require increased feed rates, Sumitomo recommends the EGE chipbreaker.
Sumitomo’s full lineup of the AC8000P steel turning grades series includes the AC8015P (high speed grade) in light silver, AC8020P (high efficiency) in gold, AC8025P (general purpose) in bright polish and AC8035P (interrupted machining) in dull silver.
Related Content
-
Inside a CNC-Machined Gothic Monastery in Wyoming
An inside look into the Carmelite Monks of Wyoming, who are combining centuries-old Gothic architectural principles with modern CNC machining to build a monastery in the mountains of Wyoming.
-
Quick-Change Tool Heads Reduce Setup on Swiss-Type Turning Centers
This new quick-change tooling system enables shops to get more production from their Swiss turning centers through reduced tool setup time and matches the performance of a solid tool.
-
4 Commonly Misapplied CNC Features
Misapplication of these important CNC features will result in wasted time, wasted or duplicated effort and/or wasted material.