等断面積を保ち形状を変化させた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 develops a new pressing method to produce severe plastic deformation in which materials are deformed during going through a die changing its shape with keeping its area. 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