Experimental and Numerical Analysis of Injection Molding of Ti-6Al-4V Powders for High-Performance Titanium Parts |
| |
Authors: | Dongguo Lin Tae Gon Kang Jun Sae Han Seong Jin Park Seong Taek Chung Young-Sam Kwon |
| |
Affiliation: | 1.Department of Mechanical Engineering,Pohang University of Science and Technology,Pohang,Republic of Korea;2.School of Aerospace and Mechanical Engineering,Korea Aerospace University,Goyang-si,Republic of Korea;3.CetaTech, Inc, GTIC 296-3,Sacheon,Republic of Korea |
| |
Abstract: | Both experimental and numerical analysis of powder injection molding (PIM) of Ti-6Al-4V alloy were performed to prepare a defect-free high-performance Ti-6Al-4V part with low carbon/oxygen contents. The prepared feedstock was characterized with specific experiments to identify its viscosity, pressure–volume–temperature and thermal properties to simulate its injection molding process. A finite-element-based numerical scheme was employed to simulate the thermomechanical process during the injection molding. In addition, the injection molding, debinding, sintering and hot isostatic pressing processes were performed in sequence to prepare the PIMed parts. With optimized processing conditions, the PIMed Ti-6Al-4V part exhibits excellent physical and mechanical properties, showing a final density of 99.8%, tensile strength of 973 MPa and elongation of 16%. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|