scholarly journals Numerical Simulation of Stainless Steel-Carbon Steel Laminated Plate Considering Interface in Pulsed Laser Bending

Materials ◽  
2019 ◽  
Vol 12 (9) ◽  
pp. 1410 ◽  
Author(s):  
Zihui Li ◽  
Xuyue Wang
Keyword(s):  
Stainless Steel ◽  
Carbon Steel ◽  
Plastic Zone ◽  
Pulsed Laser ◽  
Recrystallization Temperature ◽  
Laminated Plate ◽  
Thickness Direction ◽  
Laser Bending ◽  
Bending Angle ◽  
Steel Layer

According to ANSYS software and an electron probe experiment, a multi-layer finite element model (FEM) of pulsed laser bending of stainless steel-carbon steel laminated plate (SCLP) including interfaces has been established. Compared with a single-layer stainless steel plate (SLSP), based on a temperature gradient mechanism considering the depth of the plastic zone, the influence of the interfaces and carbon steel layer in the model of the SCLP on the bending angle has been studied by analyzing the distributions of the temperature field, stress field and strain field in the thickness direction. The simulation results show that the temperature of the SCLP in the thickness direction is lower than that of the SLSP due to interfacial thermal resistance of the interface and fast heat conduction of the carbon steel layer, resulting in a smaller depth of the plastic zone of the SCLP defined by the recrystallization temperature. Affected by the temperature distribution, the plastic stress and strain of the SCLP in the plastic zone are smaller than those of the SLSP, leading to a smaller bending angle of the SCLP. When the laser power is 140 W, the scanning speed is 400 mm/min, the defocus distance is 10 mm, and the scanning time is 1, the bending angle of the SCLP is 1.336°, which is smaller than the bending angle 1.760° of the SLSP. The experimental verifications show that the maximum error of the bending angle is 3.74%, which verifies that the model of laser bending is usable and contributes to refining the laser bending mechanism of the SCLP.

scholarly journals Equivalent Properties of Transition Layer Based on Element Distribution in Laser Bending of 304 Stainless Steel/Q235 Carbon Steel Laminated Plate

Materials ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 2326 ◽  
Author(s):  
Zihui Li ◽  
Xuyue Wang ◽  
Yonghao Luo
Keyword(s):  
Stainless Steel ◽  
Carbon Steel ◽  
Transition Layer ◽  
Volume Fraction ◽  
Element Distribution ◽  
304 Stainless Steel ◽  
Laminated Plate ◽  
Laser Bending ◽  
Bending Angle ◽  
Equivalent Method

Compared with the single-component metal plate, there is a special transition layer on the joint interface between two kinds of materials in the stainless steel-carbon steel laminated plate (SCLP). In order to describe the finite element model of laser bending accurately, it is of great significance to determine material properties of the transition layer. Based on the element distribution, an equivalent method is adopted to calculate thermal conductivity, thermal expansion coefficient, elastic modulus, density, Poisson’s ratio, and specific heat capacity of transition layer. The electron probe experiments show that the transition layer is formed by interfacial element diffusion with thickness of 7 μm. Besides, the volume fraction of stainless steel (46.63%) and carbon steel (53.37%) in the transition layer is tested by energy dispersive spectrometer, respectively. Through the equivalent method, a laser bending model of SCLP is simulated by ANSYS software to predict the bending angle under different parameters. The experimental verification shows that the maximum of bending angle errors is 3.74%, which is lower than the maximum 4.93% of errors calculated by the mean value method. The analysis verifies that the laser bending model is feasible and contributes to improving the accuracy of modeling SCLP in the laser bending process.

Numerical Simulation on Stainless Steel-Carbon Steel Laminated Sheet Considering Interface During Pulsed Laser Bending

2014 ◽  
Vol 41 (11) ◽  
pp. 1103002 ◽  
Author(s):  
池闪闪 Chi Shanshan ◽  
王续跃 Wang Xuyue ◽  
徐文骥 Xu Wenji
Keyword(s):  
Numerical Simulation ◽  
Stainless Steel ◽  
Carbon Steel ◽  
Pulsed Laser ◽  
Laser Bending

Experiments on Laser Bending of Stainless Steel-Carbon Steel Laminated Sheet

2012 ◽  
Vol 49 (9) ◽  
pp. 091403 ◽  
Author(s):  
杨冰冰 Yang Bingbing ◽  
王续跃 Wang Xuyue ◽  
徐文骥 Xu Wenji ◽  
郭东明 Guo Dongming
Keyword(s):  
Stainless Steel ◽  
Carbon Steel ◽  
Laser Bending

scholarly journals Microstructure Characterization and Mechanical Properties of Stainless Steel Clad Plate

Materials ◽  
2019 ◽  
Vol 12 (3) ◽  
pp. 509 ◽  
Author(s):  
Hao Li ◽  
Liyuan Zhang ◽  
Boyang Zhang ◽  
Qingdong Zhang
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Carbon Steel ◽  
Diffusion Layer ◽  
Mechanical Performance ◽  
Carbon Diffusion ◽  
Thickness Direction ◽  
Strong Bond ◽  
Microstructure And Mechanical Properties ◽  
Stainless Steel Clad Plate

In this study the microstructure and mechanical properties of stainless steel clad plate are researched. Due to element diffusion (Fe, Cr, Ni, Mn), a 20 μm thick diffusion layer is formed between stainless steel and carbon steel clad plate. The diffusion layer has a stable mechanical performance without obvious grain microstructure, and its internal mechanical properties show a graded change in the thickness direction. This is beneficial to a strong bond between stainless steel and carbon steel and the stable transition of mechanical performance in the thickness direction, as well as further carbon diffusion changes in the microstructure and mechanical properties near the diffusion layer of clad plate. Carburization stainless steel with a thickness of 150 μm is formed in the stainless steel side and decarburization carbon steel with a thickness of 80 μm is formed in the carbon steel side.

Study on Thickening of Laser Bending Zone for Stainless Steel-Carbon Steel Laminated Sheet

2014 ◽  
Vol 41 (8) ◽  
pp. 0803001 ◽  
Author(s):  
马绪鹏 Ma Xupeng ◽  
王续跃 Wang Xuyue ◽  
徐文骥 Xu Wenji ◽  
郭东明 Guo Dongming
Keyword(s):  
Stainless Steel ◽  
Carbon Steel ◽  
Laser Bending

Finite Element Analysis of Pulsed Laser Bending: The Effect of Melting and Solidification

2004 ◽  
Vol 71 (3) ◽  
pp. 321-326 ◽  
Author(s):  
X. Richard Zhang ◽  
Xianfan Xu
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Laser Energy ◽  
Pulsed Laser ◽  
Element Model ◽  
Stress And Strain ◽  
Laser Bending ◽  
Element Analysis ◽  
Bending Angle ◽  
Melting And Solidification

This work developes a finite element model to compute thermal and thermomechanical phenomena during pulsed laser induced melting and solidification. The essential elements of the model are handling of stress and strain release during melting and their retrieval during solidification, and the use of a second reference temperature, which is the melting point of the target material for computing the thermal stress of the resolidified material. This finite element model is used to simulate a pulsed laser bending process, during which the curvature of a thin stainless steel plate is altered by laser pulses. The bending angle and the distribution of stress and strain are obtained and compared with those when melting does not occur. It is found that the bending angle increases continulously as the laser energy is increased over the melting threshold value.

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