According to the Nikkei BP News Agency: Mitsubishi Materials Tool (Headquarters: Tokyo) listed a high-speed steel "DP coating hob" for gear dry machining. Heat resistance and wear resistance are improved by using the newly developed "DP coating". Improves the efficiency of high-speed dry machining while also extending the life of the hob.
The new coating has a film hardness of 3300 HV and an oxidation onset temperature of 1250 °C. Heat resistance and wear resistance are higher than the original (aluminum, titanium) N coating. In addition, the shape of the dry machining tool is carefully designed and the surface is smoothed, and a long life can be achieved even at a high speed of 200 m/min or more.
It has been confirmed by user evaluation that when working at a speed of 130 m/min, the life span is as long as 1.3 to 1.4 times that of the original product.
The new coating has a film hardness of 3300 HV and an oxidation onset temperature of 1250 °C. Heat resistance and wear resistance are higher than the original (aluminum, titanium) N coating. In addition, the shape of the dry machining tool is carefully designed and the surface is smoothed, and a long life can be achieved even at a high speed of 200 m/min or more.
It has been confirmed by user evaluation that when working at a speed of 130 m/min, the life span is as long as 1.3 to 1.4 times that of the original product.
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