The development team at Sumitomo Electric Hardmetal has released AC6000M, a new series of turning insert grades and three chipbreaker styles to cover roughing, semi-finishing and the finish machining of ferritic high chrome, Martensitic, austenitic, two-phase austenitic/ferritic materials as well as precipitation hardening stainless steels.


The range comprising AC6020M, AC6030M and AC6040M inserts are suitable for continuous, light interrupted and heavy interrupted cutting conditions at speeds up to 250m/min demonstrating longer in-cut tool life, high resistance to wear and chipping. Thus they are able to create a stable machined surface compared to more conventional insert grades used on stainless steel materials.

Meanwhile, the three types of chipbreaker NEF, NEG and NEM help to manage the chipping process across the insert grades, enhance performance and reduce wear on the insert when cutting difficult materials.

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