電界付加バイオマシニングに関する研究

概要

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This paper deals with the possibility of electric field assisted biomachining using chemolithotrophic bacteria <I>Thiobachillus ferrooxidans</I> that usually lives in waste fluid of mine. It is pointed out that the removal rate of anode workpiece increases steeply in this method when stainless steel bar is used as a cathode tool electrode. The etch factor for copper in this method is approximately 2, which indicates that there is an anisotropic characteristic in the removal amount. The grain boundary of workpiece is likely to remove preferentially for copper and iron. After all, it was made clear that the removal rate of workpiece was controlled by the machining time and the applied voltage between workpiece and tool electrode. It is considered that some genetic technology will be needed in the future for controlling the activity of individual bacteria.
公益社団法人精密工学会の論文
1996-04-05