Title :
Notice of Retraction
Numerical Simulation of AZ31 Magnesium Alloy Isothermal Forming
Author :
Li Xu-bin ; Zhang Zhi-min
Author_Institution :
Nat. Defense Res. Applic. Center for Precision Plastic Forming Technol., North Univ. of China (NUC), Taiyuan, China
Abstract :
Notice of Retraction
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
The equipment is a spaceflight electronic system. We have adopted the extrusion method under equal extruding temperature of 350 - 380°C. Based on stress-strain data gaining from isothermal compression experiment, adopts rigid - plastic finite element method, simulating isothermal-extrusion deformation of which the component is wrought magnesium alloy, emphatically discussing deformation force and metal flowing law in the course of isothermal-extrusion deformation. According to the simulation result of stress field, strain field, velocity field and so on, the method can forecast producing defect produced in the course of deformation and offer the reliable reference basis for isothermal extrusion deformation. As a result, diversion method are adopted. We have succeeded in extruding the part and attaining the mechanics performance of the equipment, size precision which reaches the requirements.
Keywords :
extrusion; finite element analysis; forming processes; magnesium alloys; numerical analysis; shear modulus; stress-strain relations; AZ31 magnesium alloy isothermal forming; MgJkJk; isothermal compression; isothermal-extrusion deformation; numerical simulation; rigid - plastic finite element method; spaceflight electronic system; stress-strain data; temperature 350 C to 380 C; Force; Friction; Magnesium; Plastics; Strain; Stress; Magnesium Alloy; Numerical simulation; diversion stress; isothermal Forming;
Conference_Titel :
Information Technology and Applications (IFITA), 2010 International Forum on
Conference_Location :
Kunming
Print_ISBN :
978-1-4244-7621-3
DOI :
10.1109/IFITA.2010.240