Analysis of the neutral layer offset of bimetal composite plate in the straightening process using boundary element subfield method

Gui, Hu; Ma, Lifeng; Wang, X.G.; Xia, Yang; Huang, Qingxue; Li, Q.

doi:10.1016/j.apm.2017.04.038

Cited by 11 publications

(5 citation statements)

References 8 publications

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“…Wang et al [15] conducted research on the neutral layer of the interface during secondary processing of bimetal composite plates, and found that the secondary processing parameters have a certain influence on interface morphology. Meanwhile, numerical solutions were also obtained using boundary element [16,17] and finite element methods [18,19].…”

Section: Introductionmentioning

confidence: 99%

Research on the Solid–Liquid Composite Casting Process of Incoloy825/P110 Steel Composite Pipe

Gui,

Hu,

Liu

et al. 2024

Materials

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Bimetallic composites have a wide range of application prospects in various industries. Different bonding temperatures, as one of the influencing factors, directly affect the bonding effectiveness as well as the performance and application of the materials. Using metallurgical bonding techniques ensures a strong bond at the interface of bimetallic materials, resulting in high-quality composite pipe billets. This paper describes an Incoloy825/P110 steel bimetal composite material made by the solid–liquid composite method. By utilizing ProCAST 14.5 software for simulation and deriving theoretical formulas, an initial range of temperatures for bimetallic preparation has been tentatively determined. And this temperature range will be utilized for on-site experiments to prepare bimetallic samples. After the preparation process is completed, samples will be selected. The influence of the external mold temperature on the interface bonding of Incoloy825/P110 steel solid–liquid composite material is studied using an ultra-depth three-dimensional morphology microscope and a scanning electron microscope. Through research, the optimal preheating temperature range for the solid–liquid composite outer mold of Incoloy825/P110 bimetallic composite material has been determined. The casting temperature of the inner mold has a significant impact on the interface bonding of this bimetal composite material. As the casting temperature of the inner mold increases, the interface thickness gradually increases. At lower temperatures, the interface thickness is lower and the bonding is poorer. At higher temperatures, melting may occur, leading to coarse grains at the interface. When the temperatures of the inner and outer molds are within a certain range, a new phase appears at the interface. Indeed, it increases the strength of the interface bonding. Due to co-melting of the bimetal near the interface, element migration occurs, resulting in increased Ni and Cr content at the interface and enhanced corrosion resistance.

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Section: Introductionmentioning

confidence: 99%

Research on the Solid–Liquid Composite Casting Process of Incoloy825/P110 Steel Composite Pipe

Gui,

Hu,

Liu

et al. 2024

Materials

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“…In our previous work, the straightening of the S304/Q235 composite plate and Mg alloy was analyzed by the boundary finite element method and the elastic-plastic method [30][31][32][33][34]. On the one hand, the influences of neutral layer offset and Bauschinger effect on straightening accuracy were explored in straightening.…”

Section: Introductionmentioning

confidence: 99%

Investigation on the Interface Morphology of Mg/Al Corrugated Composite Plate in the Straightening Process

Xing

Liu

et al. 2022

Materials

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The Mg/Al composite plate was developed in aerospace and other fields. At present, through the corrugated rolling method, the bonding strength of Mg/Al composite plate could be increased and the warpage could be reduced. However, this still requires the straightening process to reach the parameters’ range. In this work, the original interface morphology of Mg/Al corrugated composite plate was obtained by experimental characterization. Based on the principle of elastoplastic mechanics, the equations of straightener parameters and straightening process parameters were obtained and the influencing factors were deduced. So, the straightening model was established in an Abaqus. The effects of straightener parameters and straightening process parameters on the interface morphology were analyzed and the interface morphology was expressed by amplitude and period length of the equation. The results showed that bending moment, shear strength and the reduction of second roll played roles on the interface morphology. After the first straightening unit, the amplitude increased by 1.1% and the period length increased by 3%. Finally, a complete straightening parameter was designed, which included straightener parameters, straightening process parameters and straightening temperature. The aim of this work was to provide a theoretical basis for establishing a high precision Mg/Al corrugated composite plate straightening model, which could improve the bonding strength while ensuring the straightening effect.

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“…Brauneis et al presented a fast and robust mathematical model for the leveling process of steel plates to calculate the leveling forces for a given plate and a given roll configuration of the leveler [22]. Among all the plate leveling processes, the heavy and composite plate leveling process is the most complex [23,24]. Fan et al established a stress neutral layer offset model based on three-point bending theory, steel plate bending characteristics, and layered theory in the straightening process to obtain the relationship between the neutral layer offset values and the reverse bending radius [25].…”

Section: Introductionmentioning

confidence: 99%

A Novel Modeling Method in Metal Strip Leveling Based on a Roll-Strip Unit

Wang

2020

Mathematical Problems in Engineering

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In the metal strip-multiroll leveling process, the action behavior of each roll is different. However, modeling each roll individually will result in redundancy which is not conducive to the modeling of the entire leveling process. To overcome this problem, a roll-strip unit (RSU) model is proposed to uniformly describe the behavior of each roll during the leveling process. The RSU and its equivalent model are defined on the basis of analyzing the force relationship between the roll and the strip. According to the linear distribution of the bending moment in the longitudinal direction of the strip, the position of the zero bending moment, that is, the virtual fulcrum, is obtained to determine the interval of the RSU. A plastic deformation function is established to describe the influence of plastic extension on the tension and velocity of the strip. The fitting of the deformation curve of the strip is optimized by the tension influence factor and the zero curvature moment. The static friction condition between the roll and the strip which ensures the normal operation of the RSU is given. The AMESim model of the RSU is established to lay the foundation for the dynamic modeling of the multiroll leveler.

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Analysis of the neutral layer offset of bimetal composite plate in the straightening process using boundary element subfield method

Cited by 11 publications

References 8 publications

Research on the Solid–Liquid Composite Casting Process of Incoloy825/P110 Steel Composite Pipe

Research on the Solid–Liquid Composite Casting Process of Incoloy825/P110 Steel Composite Pipe

Investigation on the Interface Morphology of Mg/Al Corrugated Composite Plate in the Straightening Process

A Novel Modeling Method in Metal Strip Leveling Based on a Roll-Strip Unit

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