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Key Properties:
Exceptional Hot Hardness: It maintains its cutting edge and resists deformation at very high temperatures encountered during high-speed machining.
Superior Abrasion Resistance: The ceramic material offers outstanding resistance to abrasive wear, making it suitable for machining hardened materials.
High Chemical Stability: It is resistant to oxidation and diffusion, which helps in reducing crater wear.
Primary Applications:
High-Speed Machining: Ideal for finishing and semi-roughing of hardened steels and cast irons.
Hard Turning: Can be used to machine materials with hardness up to approximately Rockwell C 65, often serving as an alternative to grinding operations.
Dry Machining: Its ability to withstand high temperatures makes it a good candidate for dry machining, reducing the need for cutting fluids.
Selection and Usage Guidance:
Confirm Material Compatibility: The DCMT KT60 ceramic insert is specifically designed for machining hardened steels and cast irons. It is not suitable for aluminum, titanium alloys, or most non-ferrous metals due to the chemical reactivity and potential for excessive wear.
Ensure System Rigidity: Ceramic inserts are brittle compared to carbide. Successful application requires a very rigid machine tool, holder, and setup to avoid chipping from vibrations or minor impacts.
Optimize Cutting Parameters: To leverage their advantages, ceramic inserts typically require very high cutting speeds. It is crucial to follow the manufacturer's recommendations for speed, feed, and depth of cut to achieve optimal tool life and performance.
