Failure Analysis of a Working Roll Under the Influence of the Stress Field Due to Hot Rolling Process

2021 ◽  
Author(s):  
Reza Masoudi Nejad ◽  
Peyman Noroozian Rizi ◽  
Maedeh Sadat Zoei ◽  
Karim Aliakbari ◽  
Hossein Ghasemi
Keyword(s):  
Stress Field ◽  
Failure Analysis ◽  
Hot Rolling ◽  
Rolling Process ◽  
Hot Rolling Process

Hot Rolling Process Simulation: Application to UIC-60 Rail Rolling

2010 ◽  
Vol 3 (1) ◽  
pp. 65-71
Author(s):  
Armindo Guerrero ◽  
Javier Belzunce ◽  
Covadonga Betegon ◽  
Julio Jorge ◽  
Francisco J. Vigil
Keyword(s):  
Hot Rolling ◽  
Process Simulation ◽  
Rolling Process ◽  
Hot Rolling Process

scholarly journals 3D-FEM Simulation of Hot Rolling Process and Characterization of the Resultant Microstructure of a Light-Weight Mn Steel

Crystals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 569
Author(s):  
Ana Claudia González-Castillo ◽  
José de Jesús Cruz-Rivera ◽  
Mitsuo Osvaldo Ramos-Azpeitia ◽  
Pedro Garnica-González ◽  
Carlos Gamaliel Garay-Reyes ◽  
...  
Keyword(s):  
Hot Rolling ◽  
Thermomechanical Processing ◽  
Computational Simulation ◽  
Effective Strain ◽  
Fem Simulation ◽  
Rolling Process ◽  
3D Fem ◽  
Hot Rolling Process ◽  
Mn Steel

Computational simulation has become more important in the design of thermomechanical processing since it allows the optimization of associated parameters such as temperature, stresses, strains and phase transformations. This work presents the results of the three-dimensional Finite Element Method (FEM) simulation of the hot rolling process of a medium Mn steel using DEFORM-3D software. Temperature and effective strain distribution in the surface and center of the sheet were analyzed for different rolling passes; also the change in damage factor was evaluated. According to the hot rolling simulation results, experimental hot rolling parameters were established in order to obtain the desired microstructure avoiding the presence of ferrite precipitation during the process. The microstructural characterization of the hot rolled steel was carried out using optical microscopy (OM), scanning electron microscopy (SEM) and X-ray diffraction (XRD). It was found that the phases present in the steel after hot rolling are austenite and α′-martensite. Additionally, to understand the mechanical behavior, tensile tests were performed and concluded that this new steel can be catalogued in the third automotive generation.

Modelling the Temperature Distribution along the Length of Strip during Hot Rolling Process

2004 ◽  
Vol 75 (5) ◽  
pp. 330-338 ◽  
Author(s):  
Xiaochun Sha ◽  
Dianzhong Li ◽  
Yongjun Lan ◽  
Xiaogang Zhang ◽  
Yiyi Li
Keyword(s):  
Temperature Distribution ◽  
Hot Rolling ◽  
Rolling Process ◽  
Hot Rolling Process

Design of Pipe Steel Hot Rolling Technological Process Based on System Analysis

2021 ◽  
Vol 316 ◽  
pp. 449-454
Author(s):  
Elena Shiriaeva ◽  
Marina Polyakova
Keyword(s):  
Technological Process ◽  
Hot Rolling ◽  
Steel Sheet ◽  
System Analysis ◽  
Pipe Steel ◽  
Rolling Process ◽  
Technological Operation ◽  
Hot Rolling Process ◽  
Wide Range ◽  
Material Energy

Pipe steel sheet is manufactured by hot rolling technological process. Technological regimes of every technological operation can vary in a wide range affecting pipe steel sheet properties. It is shown that system analysis provides the effective way for searching out the basics for mathematical modeling of multi-variant technological processes. The detailed scheme of steel sheet hot rolling process is presented, determining its input and output parameters. Flows of material, energy, and information are presented for each technological operation. Metallurgical concept of pipe steel manufacturing is shown as the basics for competitive product manufacturing. It is proposed to analyze the hot rolling process as a set of target functions, which will make it possible to achieve the pipe steel sheet with the desired level of mechanical properties. The proposed approach based on system analysis allows to find tendencies for further development of hot rolling.

A special band structure perpendicular to the basal planes formed in a magnesium alloy during hot-rolling process

2017 ◽  
Vol 703 ◽  
pp. 244-250 ◽  
Author(s):  
Jinhua Peng ◽  
Zhen Zhang ◽  
Yaozu Li ◽  
Wei Zhou ◽  
Yucheng Wu
Keyword(s):  
Magnesium Alloy ◽  
Band Structure ◽  
Hot Rolling ◽  
Rolling Process ◽  
Hot Rolling Process

Finite Element Analysis of Transient Thermal Problems of Work Rolls in Hot Rolling Process

1999 ◽  
Author(s):  
James D. Lee ◽  
Majid T. Manzari ◽  
Yin-Lin Shen ◽  
Wenjun Zeng
Keyword(s):  
Finite Element ◽  
Hot Rolling ◽  
Three Dimensional ◽  
Thermal Characteristics ◽  
Rolling Process ◽  
Thermal Problem ◽  
Element Analysis ◽  
Hot Rolling Process ◽  
Transient Thermal ◽  
Work Rolls

Abstract The three-dimensional transient thermal problem of work rolls in the entire hot rolling process has been formulated. It includes the time-varying boundary conditions specified at the roll surface taking the schedule of both rolling and idling cycles into consideration. The corresponding finite element equations are derived and solved by the Runge-Kutta-Verner method. The finite element solutions indicate that the temperature variations in the circumferential direction are overwhelming. Case studies unveil the thermal characteristics of the work rolls in various kinds of mill operations. Numerical results are presented and compared with Guo’s analytical solutions.

Formulation Design and Experiments of Emulsion for Rolling Process of Magnesium Alloy

2011 ◽  
Vol 239-242 ◽  
pp. 2233-2239
Author(s):  
Zhi Qian Chen ◽  
Wen Bin Yu ◽  
Mei Tao Ouyang
Keyword(s):  
Magnesium Alloy ◽  
Hot Rolling ◽  
Anionic Surfactants ◽  
Rolling Process ◽  
Formulation Design ◽  
Base Oil ◽  
Microstructure And Properties ◽  
Hot Rolling Process ◽  
Main Components ◽  
Emulsifier Concentration

The formulation design and fundamental experiments of O/W type emulsions as lubricant and coolant in the hot rolling process of magnesium alloy were conducted in this work. The main components of emulsion were determined by the comparision of some candidates of base oil, polar oil additive and emulsifier in microstructure and properties, respectively. It is found that the conservation stability of emulsions is mainly dominated by the emulsifier concentration and type. The results showed that the suitable stability and microstructure was obtained by using compound emulsifier of nonionic and anionic surfactants. The feasible contents of both emulsifier and polar agents are about 10 percent, respectively.

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