Abstract
To clarify the effect of using high-pressure coolant supply in combination with the intermittent cutting of hardened steel ASTM D2, intermittent cutting of hardened steel was performed with various sintered cubic boron nitride compact (cBN) tools. The result revealed that it was effective to use a high-pressure coolant supply method in combination for intermittent cutting of hardened steel. An effective tool material had a bonding phase of WC-Co-Al and a high content of cBN particles. Furthermore, the more suitable cutting edge shape was "a negative-land width of 0.13mm, a negative-land angle of 45°, and R honing of 0.04 mm".
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