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Kyocera Industrial Ceramics Corp., Cutting Tool Div. announced its new CA4505 and CA4515 CVD-coated carbide grades of indexable cutting tool inserts for machining gray and nodular (ductile) cast iron. Featuring Kyocera's new Bright Black (BB) coating, the CA45-series resists premature insert wear and fractures, according to the company. There are several key advantages of the Bright Black CVD-coated CA45-series, including: Improved CVD coating adhesion provides enhanced anti-peeling performance through optimal layer composition consisting of an ultra-fine TiCN layer, an alpha-alumina layer and Kyocera's special-surface top layer. The special-surface top layer treatment reduces material build-up on the insert cutting edge and improves surface finishes on the workpiece, while reducing insert chipping during the machining process. The two new grades cover a variety of applications pertaining to the machining of gray and nodular cast iron: CA4505 reportedly offers excellent wear resistance for continuous machining, and CA4515 is for continuous or interrupted general-purpose machining.
Related Glossary Terms
- ceramics
ceramics
Cutting tool materials based on aluminum oxide and silicon nitride. Ceramic tools can withstand higher cutting speeds than cemented carbide tools when machining hardened steels, cast irons and high-temperature alloys.
- chemical vapor deposition ( CVD)
chemical vapor deposition ( CVD)
High-temperature (1,000° C or higher), atmosphere-controlled process in which a chemical reaction is induced for the purpose of depositing a coating 2µm to 12µm thick on a tool’s surface. See coated tools; PVD, physical vapor deposition.
- titanium carbonitride ( TiCN)
titanium carbonitride ( TiCN)
Often used as a tool coating. See coated tools.
- wear resistance
wear resistance
Ability of the tool to withstand stresses that cause it to wear during cutting; an attribute linked to alloy composition, base material, thermal conditions, type of tooling and operation and other variables.
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