Sandvik Coromant Carbide Grades for Machining ISO-P Steels

Sandvik Coromant, introduces a new range of turning inserts called GC4415 and GC4425, for machining ISO-P steels to deliver increased toughness, heat resistance, and predictable wear. These new carbide grades are ideal for manufacturers operating in mass and batch production set-ups (external & internal) machining low alloyed (P 2.1-2.6) and unalloyed (P 1.1-1.5) steels. GC4415 is designed to complement GC4425 when enhanced performance and more heat resistance is needed.

The latter outperform competing inserts in most of the steel turning applications and both can be used for finishing to roughing in applications with continuous cuts and light interruptions. Furthermore, the materials’ new post-treatment is found to boost performance in intermittent cutting operations, avoiding any sudden breakages and enabling both insert grades to outperform over a broad application range. The inserts superior wear resistance over competitive inserts are attributed to the second generation Inveio technology, an alumina coating layer characterised by uni-directional crystal orientation. Each crystal is lined up towards the cutting edge, creating a strong barrier that increases crater and flank wear resistance. Heat is also led away from the cutting zone more quickly, which keeps the cutting edge in shape for longer.

The result is a harder wearing tool, with minimized material waste, both from the workpiece and the insert, in addition to contributing towards extended tool-life in some of the most challenging cutting conditions. For better sustainability, the carbide substrate of these new grades contains a high proportion of recycled carbide material.

With the new carbide inserts the customers have been able to implement higher cutting speeds (vc) and multiplied feed rates (fn), as well as achieving higher productivity, a lower cost-per-part, and more profitable production. The company has also developed its online CoroPlus Tool Guide to help customers optimise their cutting speeds and feed rates and identify the best insert or tool for their requirements.

“Generally, every manufacturer wants to achieve the following goals: increased metal removal rates, more pieces per edge, reduced cycle times, minimized waste and optimized inventory use,” said Johan Anderstedt, Global Product Manager Turning, Sandvik Coromant. “For manufacturers with a batch production set-up, this also means having the flexibility to machine multiple steel materials with the same grade. Our new GC4415 and GC4425 grades can help you achieve this — even with tough and complex ISO-P materials.”

Image Source: Sandvik Coromant

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