A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Effect of strain hardening capability on plastic deformation behaviors of material during metal forming
Highlights A pre-heat-treated steel with high strength and low strain hardening is useful. The pre-heat-treated steel PHTS can exclude post-work due to bending or twisting. PHTS has quite different behaviors of plastic deformation from SCM435. Material with negligible strain hardening flows relatively well around die corners. New process design rules for PHTS are essential because of its unique features.
Abstract A comparative study of a pre-heat-treated steel PHTS and the SCM435 steel is made by simulations and experiments. PHTS is characterized by high initial yield strength and negligible strain-hardening capability while SCM435 is a typical strain hardening material. Material identification is first conducted. To characterize the plastic deformation behaviors of the two materials, predictions of cone indentation are compared. Predictions and experiments of axial compression of cylindrical specimens are also compared. In addition, a forward extrusion process, a backward extrusion process, a heading process, a forward and backward extrusion process and a four-stage forging process are simulated to examine the difference between the two steels. The findings has shown significant differences in metal flow between PHTS and SCM435, which is due to the difference in strain-hardening capabilities, indicating that experience-oriented design rules for common commercial materials may lead to failures in process design if the new material PHTS is used without considering its plastic deformation behavior.
Effect of strain hardening capability on plastic deformation behaviors of material during metal forming
Highlights A pre-heat-treated steel with high strength and low strain hardening is useful. The pre-heat-treated steel PHTS can exclude post-work due to bending or twisting. PHTS has quite different behaviors of plastic deformation from SCM435. Material with negligible strain hardening flows relatively well around die corners. New process design rules for PHTS are essential because of its unique features.
Abstract A comparative study of a pre-heat-treated steel PHTS and the SCM435 steel is made by simulations and experiments. PHTS is characterized by high initial yield strength and negligible strain-hardening capability while SCM435 is a typical strain hardening material. Material identification is first conducted. To characterize the plastic deformation behaviors of the two materials, predictions of cone indentation are compared. Predictions and experiments of axial compression of cylindrical specimens are also compared. In addition, a forward extrusion process, a backward extrusion process, a heading process, a forward and backward extrusion process and a four-stage forging process are simulated to examine the difference between the two steels. The findings has shown significant differences in metal flow between PHTS and SCM435, which is due to the difference in strain-hardening capabilities, indicating that experience-oriented design rules for common commercial materials may lead to failures in process design if the new material PHTS is used without considering its plastic deformation behavior.
Effect of strain hardening capability on plastic deformation behaviors of material during metal forming
Eom, J.G. (author) / Son, Y.H. (author) / Jeong, S.W. (author) / Ahn, S.T. (author) / Jang, S.M. (author) / Yoon, D.J. (author) / Joun, M.S. (author)
2013-08-30
9 pages
Article (Journal)
Electronic Resource
English
| British Library Online Contents | 2014
Strain-hardening behaviors of TRIP-assisted steels during plastic deformation
| British Library Online Contents | 2008
Hardening Viscous Failure and Strain Localization during Severe Plastic Deformation
| British Library Online Contents | 2006
| British Library Online Contents | 2018
Plastic deformation behaviors and hardening mechanism of M7C3 carbide
| British Library Online Contents | 2016