Proceedings ArticleDOI
A Simulation of Surface Roughness in Hot Strip Rolling
Jianning Tang,A. Kiet Tieu,Zhengyi Jiang +2 more
- Vol. 712, Iss: 1, pp 630-635
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TLDR
In this paper, the authors considered a model of surface roughness based on Gaussian distribution function, where a rough surface profile or surface section profile with specified roughness parameters can be generated easily and analyzed.Abstract:
In hot strip rolling the temperature range is 800–1000 °C where an oxide scale layer is formed on the steel surface. In this paper, the authors consider a model of surface roughness based on Gaussian distribution function, where a rough surface profile or surface section profile with specified roughness parameters can be generated easily and analysed. The effect of roughness parameters on the change of surface roughness is also considered. The aim of this study is to determine the surface roughness and the asperity deformation at the scale‐steel interface and the final roughness profile of the rolled strip after the hot finishing mill. Based on the MSC‐MARC package, a finite element method (FEM) model is used to simulate the hot strip rolling asperity deformation and surface roughness transfer of the oxide scale and the steel surface roughness. The generated profile of surface roughness is verified by the scanned surface profile of the oxidized hot strip.read more
Citations
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Journal ArticleDOI
Effects of surface roughness on micro deep drawing of circular cups with consideration of size effects
TL;DR: In this article, a voronoi finite element model that considers size effects of material was developed for micro-deep drawing of circular cups and the surface roughness information was assigned to this model through different elemental thickness distributions.
Journal ArticleDOI
Influence of metal forming parameters on surface roughness and establishment of surface roughness prediction model
TL;DR: In this article, a prediction model of surface roughness for metal forming parts was established on the basis of analyzing the influence of metal forming parameters on surface roughs, such as the contact normal pressure, the initial roughness of a workpiece, the sliding distance between the workpiece and the die, and the surface area enlargement.
Dissertation
Modélisation de l'interface lopin/outil lors des opérations de matriçage
TL;DR: Baillet as discussed by the authors defined a mode of frottement based on the theory of vague plastique of Challen et Oxley, a contribution hydrostatique du lubrifiant piege entre les vallees des asperites.
A study of oxide scale deformation and surface roughness transformation in hot strip rolling
TL;DR: A court may impose penalties and award damages in relation to offences and infringements relating to copyright material as discussed by the authors, and higher penalties may apply, and higher damages may be awarded, for offences and inferences involving the conversion of material into digital or electronic form.
Journal ArticleDOI
Improving the Surface Roughness of Pickled Steel Strip by Control of Rolling Temperature
TL;DR: In this article, the surface roughness problem of low carbon pickled steel strips from the view points of prior hot rolling conditions and the hot-rolled scales was analyzed, and the results showed that, compared with other parameters, the most important factor in hot rolling was the rolling temperature.
References
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Book
Hot Rolling of Steel
TL;DR: A history of hot rolling can be found in this article, where the basic principles of rolling and pass design Blooming, Slabbing, and Billet Mills are discussed. But the authors do not discuss the effects of nonuniform deformation in hot rolling.
Journal ArticleDOI
Surface deformation vs. bulk plastic deformation—a key for microscopic control of surfaces in metal forming
TL;DR: In this paper, the surface deformation should be stressed if the normal stress with frictional stress can be activated on the very top of the forming surface microgeometry, and especially if no bulk plasticity can be utilized.
Journal ArticleDOI
A finite element simulation of micro-mechanical frictional behaviour in metal forming
TL;DR: In this article, the effect of roughness and relative speed of contact surfaces on friction coefficient was examined in the finite element (FE) model for the microscopic friction behavior, and the analysis was performed using an explicit FE formulation.