Abstract
Recently, vibration of machine tools have become a serious problem because of improving surface roughness of work piece and tool life. In order to improve the structural properties of machine tools, we have developed a new material named ceramic resin concrete. This material have high stiffness, low density, and high logarithmic damping ratio. Therefor, in this paper, availability of tool post using ceramic resin concrete have investigated. It is concluded from the results that tool post using ceramic resin concrete is effective in order to reduce vibration of the lathe and to delay the period of chatter. In addition, middle cutting by a chip of large corner radius and finish cutting by a shaving chip could achieve without chatter from using this tool post.
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