Austempered Ductile Iron (ADI)

Listing ID #3244705

A 40-50% reduction in tool-life compared to NCI can be expected. Tensile strength and ductility of ADI are near to steel, but the chip formation process classifies ADI as a ductile iron (segmented chip formation).
High thermal and mechanical loads, due to high strength and ductility, will concentrate wear near the cutting edge, due to the segmented chip formation process, and wear on the top rake. Hardening during chip formation results in high dynamic cutting forces. The cutting edge temperature is a strong factor for determining wear.
Grades to use are 3210 or 3225. The preferred geometries are -KF, -KM, -KR and -KRR. When finishing, consider wiper geometry WMX.