With its GC3225 and GC3210, Sandvik Coromant (
www.sandvik.coromant.com) has introduced two new grades for machining both grey and nodular cast irons. GC3225, which is a first-choice grade for cast-iron turning applications, is designed to provide secure and trouble-free machining in even the most difficult conditions.
Meanwhile, GC3210 is a grade with a high resistance to flank wear; it is suitable for turning in all cast-iron materials under good-to-average machining conditions. It enhances reliability and productivity when undertaking intermittent cuts, high cutting speeds and wet or dry machining — plus machined surfaces and light cast skin.
To provide the edge-line security and wear resistance necessary for optimised performance, GC3225 and GC3210 feature a CVD coating combined with a fine-grained hard substrate.
Additionally, these inserts feature optimised micro-geometries that provide a light cutting action for reduced cutting forces and improved tool life.
Cutting tests undertaken by customers have shown that, compared to a competitor’s grade, GC3225 can achieve a 70% increase in tool life when machining nodular iron. When using GC3210 to machine differential case covers, tool life increased by 38%.