High-Speed Cast Iron Turning

Sumitomo's AC401K grade consists of two types of coating layers--the Super FF Alumina layer and the Super FF TiCN layer--both of which provide excellent peeling resistance and improved overall insert stability, the company says. Its ultra-thick, inner Alumina layer is designed to provide thermal resistance, while the outer TiCN layer is designed to excel in chipping resistance. The grade combines these coatings with a hard carbide substrate, resulting in excellent wear resistance in continuous to light interrupted machining of gray and ductile cast iron.

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Sumitomo's AC410K grade consists of two types of coating layers--the Super FF Alumina layer and the Super FF TiCN layer--both of which provide excellent peeling resistance and improved overall insert stability, the company says. Its ultra-thick, inner Alumina layer is designed to provide thermal resistance, while the outer TiCN layer is designed to excel in chipping resistance. The grade combines these coatings with a hard carbide substrate, resulting in excellent wear resistance in continuous to light interrupted machining of gray and ductile cast iron.

The wear resistance and toughness of the grade is available in positive insert styles for light to medium cutting applications and negative insert styles for light to rough cutting applications.

The grade is available in positive insert styles for light to medium cutting applications and negative insert styles for light to rough cutting applications.