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Showing 1 to 20 of 36 for “"Hot Rolling"”.
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Recycling of aluminum scrap through direct Hot Rolling Process
… SSR methods exist, a process solely reliant on rolling is missing. To grasp the industrial importance of metal rolling in the industry, consider this: approximately 90% of steel, aluminum, and copper alloys are subjected to a rolling process at least once during their manufacturing. That’s why a …
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Numerical investigation of the edge profile in hot-rolling
During the hot-rolling of aluminium ingot into sheet, the material elongates in the rolling direction as it is reduced vertically. The spread which occurs in the lateral direction during the multiple pass schedules used in industry is minimal. However, the deformation on these edges is important. …
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The prediction of applied force and torque during flat hot rolling.
… and torque produced under a wide range of flat hot rolling conditions.The technique used is based on the numerical solution to the Von Karman equation developed by Alexander and applied to cold rolling conditions. In the present work, extensions have been made that allow the use of a yield …
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Some problems in hot rolling of al-alloys solved by the finite element method
… the finite element method (FEM) to simulate hot flat rolling process. The relevant work involves selecting a suitable constitutive equation, predicting the rolling load and roll torque, computing temperature changes and lateral deformation, simulating the evolution of substructure, modelling …
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Modeling and Simulation of Viscoplasticity, Recrystallization, and Softening of Alloyed Steel During Hot Rolling Process
<p>"Hot rolling is one of the most important and complex deformation processes in steel manufacturing and is essential to final product quality. The objective of this study is to investigate viscoplasticity, dynamic recrystallization, and static softening of alloyed metal during hot rolling …
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Experimental evaluation of hot rolling load predictions made using Orowan-Sims and Orowan-Pascoe methods
Includes bibliographical references.
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A thermo-mechanical finite element simulation of hot rolling for the prediction of roll forces
The main objective of this project was to provide Cooumbus Stainless (Mpumalanga, RSA) with a numerical stimulation model that would be able to accurately predict roll forces in the roughing mill. The materials used in the model is AISI 304 stainless steel. In order to model the material flow …
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Strip Crown Prediction: Developing a Refined Dynamic Roll-Stack Model for the Hot Rolling Process
… producing flat plates through the process of hot rolling since the late 1600s. Hot rolling uses a series of rolls to progressively thin a strip of steel to a desired thickness. In deforming the strip, the rolling process causes variations in thickness across the width of the strip. These …
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Non-Linear Finite Element Method Simulation and Modeling of the Cold and Hot Rolling Processes
A nonlinear finite element model of the hot and cold rolling processes has been developed for flat rolling stock with rectangular cross section. This model can be used to analyze the flat rolling of cold and hot steel rectangular strips under a series of different parameters, providing the rolling …
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A Response Surface Exit Crown Model Built from the Finite Element Analysis of a Hot-Rolling Mill
… of continuous derivatives and decouples rolling load from the determination of exit height. The data points to build the response surface are the product of a calibrated finite element model. The rolling dynamics in the finite element model creates a transient that requires nonlinear …
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The influence of the thermomechanical processing on the annealing response of 3CR12 steel
… various cooling treatments immediately following hot rolling. This was accomplished by water quenching, air cooling and insulatory cooling of the hot-rolled plates. Characterisation of the alloys in the hot-rolled and annealed conditions included optical and electron microscopy, macro- and …
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Investigating effects of interpass time during hot finish rolling on the evolution of texture in AA3104 Can Body Stock
During the hot rolling of aluminium strips, inter-pass time variability along the strip length leads to non-uniform microstructure and texture development, which impacts material properties. This study investigated the microstructure and texture evolution in AA3104 can body stock (CBS) during hot …
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Microstructure and texture development in AISI430 ferritic stainless steel
… of ferrite to austenite when subjected to hot rolling temperatures. Consequently, the alloys consist of ferrite and austenite during processing. The presence of austenite and ferrite influences the microstructure evolution and texture development during hot rolling and subsequent annealing …
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Investigating the influence of thermomechanical variables on ridging in aisi 430 stainless steel
… profile with ridges always elongated in the rolling direction of the sheet and are typically around 1 mm in wavelength. The formation of a ridged profile, while not having a detrimental effect of the mechanical properties, results in the product having an unatractive surface finish. Thus …
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Previsão de séries temporais aplicado aos indicadores de performance em um processo de laminação a quente
… have been found that applied these models in a hot rolling process, which raises the opportunity for investigation. The main objective of the dissertation is to develop a prediction model for performance indicators in a non-flat hot rolling processin a steel industry based on time series. The …
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Investigation of rolling variables on the structure of steel.
… present research has been critically reviewed. Hot deformation of Nb-free and Nb-containing stainless and C-Mn steels has been carried out by: upset-forging, rolling, and plane strain compression testing. Also, some gridded lead alloy and some mild steel containing Type I MnS inclusions as …
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Microstructural evolution of AISI304 stainless steel in the Steckel Mill rolling process
… of AISI304 stainless steel in the Steckel mill rolling process is investigated. This study includes the analysis of mill logs, microstructural examination of the mill product, deformation simulations and post deformation heat treatments. The mill logs from industry contains information about …
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Precipitation and fracture in a ferritic stainless steel
… failures during production. Following hot rolling and cooling while coiled and prior to annealing, the steel had been prone to shattering across its width during uncoiling. This project was initiated by the manufacturers, Columbus Stainless, so that the present understanding of this …
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Effect of microalloying on pearlite transformation of high carbon wire steels
… cooling tests persist through industrial hot rolling simulations. An industrially hot rolled 1080 wire rod with vanadium additions and three laboratory-prepared alloys were studied. The base alloy, denoted the V steel, had a composition of 0.80C-0.50Mn-0.24Si-0.20Cr-0.079V-0.0059N (wt …
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