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A Study of a New Precision Finishing Process for Inside Surface of Silicon Nitride Fine Ceramic Pipe by Application of Magnetic Abrasive Machining
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 Title & Authors
A Study of a New Precision Finishing Process for Inside Surface of Silicon Nitride Fine Ceramic Pipe by Application of Magnetic Abrasive Machining
Park, Won-Gyu; Shinmura, Takeo;
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 Abstract
Results ar presented of a new process for internal precision finishing of slender fine ceramic pipes using a magnetic field generated by a permanent magnets. For finishing the interior surface of a long pipe, a new type of finishing equipment was developed which can be very easily used in an industrial surrounding. In general, the pipe is so slender that a conventional finishing tool is hardly inserted into the pipe deeply, being impossible to finish. Therefore, a new technology has been considered to finish inside of a slender ceramic pipe by a simple technique. In this experimental, Magnetic Abrasive Machining is applied for the inner surface of silicon nitride fine ceramic pipe using ferromagnetic particles mixed with chromium-oxide powder. It is shown the initial roughness of 2.6㎛ Ry(0.42㎛ Ra) in the inside surface can be precisely finished to the roughness of 0.1㎛ Ry(0.01㎛ Ra). This paper discusses the outline of the processing by the application of magnetic abrasive machining and a few finishing characteristics.
 Keywords
Silicon Nitride Fine Ceramic Pipe;Magnetic Abrasive Machining;Precision Finishing;
 Language
Korean
 Cited by
 References
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