剛塑性有限要素法による穿孔圧延の近似三次元シミュレーション

概要

論文の詳細を見る
A method for simulating three-dimensional deformation in rotary piercing of a seamless pipe from a round bar with skewed rolls is proposed on the basis of the rigid-plastic finite element method using generalized plane-strain modeling. In this method, the rotary piercing is approximated to be a roll forging process, and the elongation of the workpiece in the rolling direction is kept uniform in the cross-section. The effect of the shear deformation in the rolling direction is included in the generalized plane-strain modeling. In addition to the short computing time, the treatment of the contact boundary conditions for the rolls and plug becomes simple. The effects of working conditions on deformation behavior and the occurrence of a central crack in the rotary piercing are examined.
社団法人日本機械学会の論文
1998-06-25