Evaluation of chilled casting and extrusion-shear forming technology based on numerical simulation and experiments
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H. J. Hu
Prof. Dr. Hong-Jun Hu received his BSc and MSc degrees from Hubei University of Technology, Wuhan City, Hubei Province, China in 2003, and his PhD from Chongqing University, China in 2010. He has coauthored four books, and has over 30 publications on various aspects of casting, extrusion and special extrusion. He is also an owner of patents in the field of formation technologies for magnesium alloy. Currently, he is a full-time professor at Chongqing University of Technology.
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S. L. Gan
Songlin. Gan and Y.Tian are graduate student at the College of Materials Engineering, Chongqing Institute of Technology, P. R. China.
Songlin. Gan and Y.Tian are graduate student at the College of Materials Engineering, Chongqing Institute of Technology, P. R. China.
Dingfei Zhang is a Professor at Chongqing University, Chongqing, P. R. China, with a major research interest in advanced magnesium alloy.
Jinkai Feng is a PhD student at Chongqing University, Chongqing, P. R. China, with a major research interest in advanced magnesium alloy.
Zhongwen Ou is a Professor at Sichuan University of Science & Engineering, Zigong, China, with a major research interest in advanced material surface treatment.
Yan Zhi is a lecturer at the College of Materials Science and Engineering, Chongqing University of Technology, P. R. China.
Abstract
Magnesium alloys on the surface of billets might be refined by chilled casting process, but the grains of the center of billets are coarse, and there are a lot of void defects in the center of billets. These defects can be eliminated by hot extrusion, while fibrous microstructures and strong basal textures might be formed. This paper presents a new short process technology which includes chilled casting and extrusion-shear (CCES). It is crucial to understand the effects of die structures on the deformation behaviors, strain distribution and load requirements. Three selections of processes and die structures were done by simulations and experiments which include CCES process with 4 times consecutive shearings plastic deformation, CCES process by lateral extrusion with 90° shearing angle, and combined CCES process mode. The research results show the third selection is recommended. Three-dimensional (3D) geometric models with different channel angles (30°, 45°) for the third selection CCES dies were designed. The heterogeneities of plastic deformation by CCES dies with different channel angles were analyzed from the simulation results. The simulation results show strains decrease with rising of channel angles. The lower channel angles improve the deformation heterogeneity of magnesium alloy billets. Smaller channel angles obtain higher strains and produce tinier sub-grains. The forces of the CCES process decrease with rising of channel angles. The analysis results showed that finer and uniform microstructures can be obtained if channel angles in the CCES dies are appropriate.
About the authors
Prof. Dr. Hong-Jun Hu received his BSc and MSc degrees from Hubei University of Technology, Wuhan City, Hubei Province, China in 2003, and his PhD from Chongqing University, China in 2010. He has coauthored four books, and has over 30 publications on various aspects of casting, extrusion and special extrusion. He is also an owner of patents in the field of formation technologies for magnesium alloy. Currently, he is a full-time professor at Chongqing University of Technology.
Songlin. Gan and Y.Tian are graduate student at the College of Materials Engineering, Chongqing Institute of Technology, P. R. China.
Songlin. Gan and Y.Tian are graduate student at the College of Materials Engineering, Chongqing Institute of Technology, P. R. China.
Dingfei Zhang is a Professor at Chongqing University, Chongqing, P. R. China, with a major research interest in advanced magnesium alloy.
Jinkai Feng is a PhD student at Chongqing University, Chongqing, P. R. China, with a major research interest in advanced magnesium alloy.
Zhongwen Ou is a Professor at Sichuan University of Science & Engineering, Zigong, China, with a major research interest in advanced material surface treatment.
Yan Zhi is a lecturer at the College of Materials Science and Engineering, Chongqing University of Technology, P. R. China.
Acknowledgement
This work was supported by the National Science Foundation of China (52071042, 51771038 and 51571040), and Chongqing Talent Project (cqyc202003047), as well as Chongqing Natural Science Foundation Project of cstc2018jcyjAX0249 and cstc-2018jcyjAX0653.
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© 2021 Walter de Gruyter GmbH, Berlin/Boston, Germany
Articles in the same Issue
- Frontmatter
- Materialography
- Long term heating effects at 1173 K and 1273 K on microstructural rejuvenation in various modified alloys based on GTD-111
- Mechanical testing
- Effect of tempering temperature on impact energy of AISI 410 martensitic stainless steel at low temperatures
- Fatigue testing
- Evaluation of S-N curves including failure probabilities using short-time procedures
- Statistical evaluation of fatigue tests using maximum likelihood
- Materials testing for joining and additive manufacturing applications
- Microstructure and mechanical properties of 6082-T6 aluminum alloy–zinc coated steel braze-welded joints
- Mechanical testing/Numerical simulations
- Evaluation of chilled casting and extrusion-shear forming technology based on numerical simulation and experiments
- Materials testing for welding and additive manufacturing applications
- Effects of laser and GMA hybrid welding parameters on shape, residual stress and deformation of HSLA steel welds
- Analysis of physical and chemical properties
- Vibration damping capacity of deep cryogenic treated AISI 4140 steel shaft supported by rolling element bearings
- Component-oriented testing and simulation
- Optimal design and experimental investigation of teeth connection joint on a filament wound composite transmission shaft
- Mechanical testing
- Mitigation of heat treatment distortion of AA 7075 aluminum alloy by deep cryogenic processing using the Navy C-ring test
- Production and desin-oriented testing
- Optimal design of differential mount using nature-inspired optimization methods
- Fatigue testing
- Fatigue Life and Stress Analysis of the Crankshaft of a Single Cylinder Diesel Engine under Variable Forces and Speeds
- Analysis of physical and chemical properties
- Effect of Bi dopant on morphological and optical properties of ZnO semiconductor films produced by the sol-gel spin coating process
- Mechanical Testing
- Husking and mechanical properties of ISAF N231/SAF N110 carbon black filled XNBR-ENR blend rubber compound for rice husk removal applications
Articles in the same Issue
- Frontmatter
- Materialography
- Long term heating effects at 1173 K and 1273 K on microstructural rejuvenation in various modified alloys based on GTD-111
- Mechanical testing
- Effect of tempering temperature on impact energy of AISI 410 martensitic stainless steel at low temperatures
- Fatigue testing
- Evaluation of S-N curves including failure probabilities using short-time procedures
- Statistical evaluation of fatigue tests using maximum likelihood
- Materials testing for joining and additive manufacturing applications
- Microstructure and mechanical properties of 6082-T6 aluminum alloy–zinc coated steel braze-welded joints
- Mechanical testing/Numerical simulations
- Evaluation of chilled casting and extrusion-shear forming technology based on numerical simulation and experiments
- Materials testing for welding and additive manufacturing applications
- Effects of laser and GMA hybrid welding parameters on shape, residual stress and deformation of HSLA steel welds
- Analysis of physical and chemical properties
- Vibration damping capacity of deep cryogenic treated AISI 4140 steel shaft supported by rolling element bearings
- Component-oriented testing and simulation
- Optimal design and experimental investigation of teeth connection joint on a filament wound composite transmission shaft
- Mechanical testing
- Mitigation of heat treatment distortion of AA 7075 aluminum alloy by deep cryogenic processing using the Navy C-ring test
- Production and desin-oriented testing
- Optimal design of differential mount using nature-inspired optimization methods
- Fatigue testing
- Fatigue Life and Stress Analysis of the Crankshaft of a Single Cylinder Diesel Engine under Variable Forces and Speeds
- Analysis of physical and chemical properties
- Effect of Bi dopant on morphological and optical properties of ZnO semiconductor films produced by the sol-gel spin coating process
- Mechanical Testing
- Husking and mechanical properties of ISAF N231/SAF N110 carbon black filled XNBR-ENR blend rubber compound for rice husk removal applications
