Cutting Tool Coatings Improve Performance

MariTool offers a variety of cutting tools coated in diamond-like carbon (DLC) for increased hardness and in zirconium nitride (ZrN) for improved abrasion resistance.

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MariTool offers a variety of cutting tools coated in diamond-like carbon (DLC) for increased hardness and in zirconium nitride (ZrN) for improved abrasion resistance.

The DLC coating increases hardness and lubricity for machining aluminum, graphite, composites and carbon fiber. In aluminum, the coating is suited for high-production, light-finishing applications such as finish profiling and circle milling where holding a size and finish is critical. The DLC coating provides longer tool life than ZrN coating, but it is not suited for slotting or heaving milling because of its lower working temperature, the company says.

ZrN coating increases abrasion resistance, lubricity and tool life, and enables faster speed and feed rates, which can reduce cycle times and lower tooling costs.