High Precise Milling Process by cBN End Mills
Katsumi Naganuma and Masato Mori
NS Tool Co., Ltd., 4-5-9 Minamioi, Shinagawa-ku, Tokyo 140-0013, Japan
Molding technology is one way of producing the micro-precision parts required by various industries. To Advance this molding technology, various elemental technologies related to materials, construction and machiningmethods are evolving together. One of these elemental technologies is milling by end mill. Further research and development of end mill is underway in response to improvement and requirement of molding technologies. There are various demands for end mills such as improvement of tool life and stable machining quality. Here we report the small diameter cBN end mill, developed as a tool to provide with stable machining accuracy with long tool life for high hard materials. We report the investigations and characteristics at the time of development and show the machining test.
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