The second hardest material known. Used primarily for turning hardened steels.
Extremely hard and heat-resistant; ideal for high-speed turning of cast iron and heat-resistant superalloys (HRSA). modern metal cutting a practical handbook free
Correction: Reduce cutting speed, use a tool with a thicker chemical coating (such as CVD alumina), or apply high-pressure coolant. Chipping and Catastrophic Failure The second hardest material known
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