Finite Element Analysis of Large Plastic Deformation Process of Pure Molybdenum Plate during Hot Rolling
The rare molybdenum resources are being increasingly used in heavy industries. In this study, the common unidirectional and cross hot rolling operations, for pure molybdenum plates, were numerically simulated by using MSC. Marc software. An elastic–plastic finite element model was employed, together...
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| Format: | Article |
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MDPI AG
2023-01-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/13/1/101 |
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| author | Jiayu Han Quan Cheng Ping Hu Hairui Xing Shilei Li Songwei Ge Xingjiang Hua Boliang Hu Wen Zhang Kuaishe Wang |
| author_facet | Jiayu Han Quan Cheng Ping Hu Hairui Xing Shilei Li Songwei Ge Xingjiang Hua Boliang Hu Wen Zhang Kuaishe Wang |
| author_sort | Jiayu Han |
| collection | DOAJ |
| description | The rare molybdenum resources are being increasingly used in heavy industries. In this study, the common unidirectional and cross hot rolling operations, for pure molybdenum plates, were numerically simulated by using MSC. Marc software. An elastic–plastic finite element model was employed, together with the updated Lagrange method, to predict stress and strain fields in the workpiece. The results showed that there was a typical three-dimensional additional compressive stress (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>σ</mi><mi>y</mi></msub></mrow></semantics></math></inline-formula>> <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>σ</mi><mi>z</mi></msub></mrow></semantics></math></inline-formula> > <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>σ</mi><mi>x</mi></msub></mrow></semantics></math></inline-formula>) in the deformation zone, while strain could be divided into uniaxial compressive strain and biaxial tensile strain (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>ε</mi><mi>y</mi></msub></mrow></semantics></math></inline-formula> > <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>ε</mi><mi>x</mi></msub></mrow></semantics></math></inline-formula> > <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>ε</mi><mi>z</mi></msub></mrow></semantics></math></inline-formula>). Tensile stress <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>σ</mi><mi>x</mi></msub></mrow></semantics></math></inline-formula> increased with the accumulation of reduction and the decrease in friction coefficient at the edge of the width spread. More importantly, the interlaced deformation caused by cross-commutations, which were helpful in repairing the severe anisotropy created by unidirectional hot rolling. The evolution of the temperature field of pure molybdenum plate was investigated. The surface quenching depth of the pure molybdenum plate was about 1/6 H under different initial temperatures and reductions. In addition, the fundamental reason for the nonuniform distribution of stress and strain fields was the joint influence of rolling stress, contact friction, and external resistance. By comparing the theoretical simulation value of the model with the experimental verification data, we found that the model was aligning well with the actual engineering. |
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| spelling | doaj.art-e8c430c9babb429fbee1b51cb9404ceb2023-11-30T23:30:44ZengMDPI AGMetals2075-47012023-01-0113110110.3390/met13010101Finite Element Analysis of Large Plastic Deformation Process of Pure Molybdenum Plate during Hot RollingJiayu Han0Quan Cheng1Ping Hu2Hairui Xing3Shilei Li4Songwei Ge5Xingjiang Hua6Boliang Hu7Wen Zhang8Kuaishe Wang9School of Metallurgy Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, ChinaSchool of Metallurgy Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, ChinaSchool of Metallurgy Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, ChinaSchool of Metallurgy Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, ChinaSchool of Metallurgy Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, ChinaSchool of Metallurgy Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, ChinaSchool of Metallurgy Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, ChinaSchool of Metallurgy Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, ChinaNorthwest Institute for Non-Ferrous Metal Research, Xi’an 710016, ChinaSchool of Metallurgy Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, ChinaThe rare molybdenum resources are being increasingly used in heavy industries. In this study, the common unidirectional and cross hot rolling operations, for pure molybdenum plates, were numerically simulated by using MSC. Marc software. An elastic–plastic finite element model was employed, together with the updated Lagrange method, to predict stress and strain fields in the workpiece. The results showed that there was a typical three-dimensional additional compressive stress (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>σ</mi><mi>y</mi></msub></mrow></semantics></math></inline-formula>> <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>σ</mi><mi>z</mi></msub></mrow></semantics></math></inline-formula> > <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>σ</mi><mi>x</mi></msub></mrow></semantics></math></inline-formula>) in the deformation zone, while strain could be divided into uniaxial compressive strain and biaxial tensile strain (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>ε</mi><mi>y</mi></msub></mrow></semantics></math></inline-formula> > <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>ε</mi><mi>x</mi></msub></mrow></semantics></math></inline-formula> > <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>ε</mi><mi>z</mi></msub></mrow></semantics></math></inline-formula>). Tensile stress <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>σ</mi><mi>x</mi></msub></mrow></semantics></math></inline-formula> increased with the accumulation of reduction and the decrease in friction coefficient at the edge of the width spread. More importantly, the interlaced deformation caused by cross-commutations, which were helpful in repairing the severe anisotropy created by unidirectional hot rolling. The evolution of the temperature field of pure molybdenum plate was investigated. The surface quenching depth of the pure molybdenum plate was about 1/6 H under different initial temperatures and reductions. In addition, the fundamental reason for the nonuniform distribution of stress and strain fields was the joint influence of rolling stress, contact friction, and external resistance. By comparing the theoretical simulation value of the model with the experimental verification data, we found that the model was aligning well with the actual engineering.https://www.mdpi.com/2075-4701/13/1/101pure molybdenumunidirectional hot rollingcross hot rollingfinite element method |
| spellingShingle | Jiayu Han Quan Cheng Ping Hu Hairui Xing Shilei Li Songwei Ge Xingjiang Hua Boliang Hu Wen Zhang Kuaishe Wang Finite Element Analysis of Large Plastic Deformation Process of Pure Molybdenum Plate during Hot Rolling Metals pure molybdenum unidirectional hot rolling cross hot rolling finite element method |
| title | Finite Element Analysis of Large Plastic Deformation Process of Pure Molybdenum Plate during Hot Rolling |
| title_full | Finite Element Analysis of Large Plastic Deformation Process of Pure Molybdenum Plate during Hot Rolling |
| title_fullStr | Finite Element Analysis of Large Plastic Deformation Process of Pure Molybdenum Plate during Hot Rolling |
| title_full_unstemmed | Finite Element Analysis of Large Plastic Deformation Process of Pure Molybdenum Plate during Hot Rolling |
| title_short | Finite Element Analysis of Large Plastic Deformation Process of Pure Molybdenum Plate during Hot Rolling |
| title_sort | finite element analysis of large plastic deformation process of pure molybdenum plate during hot rolling |
| topic | pure molybdenum unidirectional hot rolling cross hot rolling finite element method |
| url | https://www.mdpi.com/2075-4701/13/1/101 |
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