![]() There are several clear benefits of turning with a PCBN insert over the conventional grinding process for finishing hardened steel parts. The workpiece materials involved include various hardened alloy steels, tool steels, case-hardened steels, high temperature alloys, nitride irons, hard chrome coated steels, and heat-treated powder metallurgical parts with application across end markets such as transportation, general engineering, energy, and aerospace. As machining complexities continue to evolve with customers looking at new ways to balance precision with productivity, the advent of hard part turning has emerged as an ideal alternative to grinding.īroadly, hard part turning refers to machining of parts with a hardness of above 45 HRC, although most frequently the process concerns hardness of 58 to 68 HRC.
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