Affiliation:
1. Department of Mechanical Engineering, Pohang University of Science and Technology, Pohang 790-784, Korea
Abstract
Densification behavior of 316L stainless-steel powder under die pressing was studied. The friction effects between the powder and the die wall under different die pressing modes were also investigated. The elastoplastic constitutive equations, based on the yield functions by Fleck and Gurson and by Shima and Oyane, were implemented into a finite element program to simulate die compaction processes. The friction coefficient between the powder and the die wall was determined from the relationship between the compaction pressure and the ejection pressure. Finite element calculations were compared with experimental data for densification and deformation of 316L stainless-steel powder under single and double action die pressing.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
Reference27 articles.
1. ABAQUS, 1995, User’s I and II Manual Version 5.3, Hibbitt, Karlsson and Sorensen.
2. Aravas
N.
, 1987, “On the Numerical Integration of A Class of Pressure-Dependent Plasticity Models,” Int. J. Num. Meth. Engrg., Vol. 24, pp. 1395–1416.
3. Ashley
S.
, 1991, “Powder-Metal Forging: Connecting Rods That Crack by Design,” Mechanical Engineering, Vol. 113, pp. 5454.
4. Becker
R.
, NeedlemanA., RichmondO., and TvergaardV., 1988, “Void Growth and Failure in Notched Bars,” J. Mech. Phys. Solids, Vol. 36, pp. 317–351.
5. Boyer, H. E., 1987, Hardness Testing, ASM International.
Cited by
45 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献