等断面積・等形状を保ち捻りと勇断を与える金型を用いた押し出し加工の有限要素法による解析

概要

論文の詳細を見る
The ultra refinement of grain size is one of the most promising methods for improving the mechanical properties of structural materials. Many experimental investigations have been conducted on various techniques such as a heat treatment, the addition of alloying elements and severe plastic deformation for ultra refinement of grain size. ECAP (equal-channel angular pressing), ARB (Accumulative Roll-Bonding) are used as a method of producing severe plastic deformation. It is necessary to develop a new processing method that improves the problems of the existing processing methods. We developed a new pressing method to produce severe plastic deformation in which materials are twisted, sheared or both through a die with the same shape of cross section from its entrance to exit Through FEM analysis, it is concluded that the process can produce uniform and high strain.
工学院大学の論文
2006-10-30