Sumitomo Turning Grade for Enhanced Chip Control
The AC8020P turning grade is designed to enable high-efficiency machining of medium carbon and high carbon steel.
Sumitomo’s AC8020P grade is said to feature increased strength of the alumina layer for enhanced chip control. Photo Credit: Sumitomo
Sumitomo’s AC8020P grade was developed to enable high-efficiency turning of hard steel (~1030), medium and high carbon steel (alloy steel, 1053, 4140, 4137 and bearing steel 52100).
Sumitomo has added this grade to complement its existing AC8000P Series grades (AC8015P, AC8025P, and AC8035P) in order to help users find the best turning solution for machining steel.
The grade is said to feature increased strength of the alumina layer for enhanced chip control and showcases the golden surface color for improved wear visibility. According to the company, AC8020P has shown results of more than 2.5 times the chipping resistance versus conventional grades. The company recommends its EGU chipbreaker for increased cutting speeds and feed rates.
Sumitomo’s full lineup of steel turning grades in the AC8000P Series includes AC8015P (high speed grade) which is light silver, AC8020P (for high efficiency) which is distinguished by its gold color, AC8025P (for general purpose) features a bright polish appearance and the AC8035P grade (for interrupted machining) has a dull silver look.
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