An efficient finite element model of surface pit reduction on stainless steel in metal forming processes

Stephany, Antoine; Le, Huirong; Sutcliffe, M.P.F.

doi:10.1016/j.jmatprotec.2005.05.008

Cited by 6 publications

(2 citation statements)

References 15 publications

(16 reference statements)

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“…In order to reduce friction and to better control workpiece final roughness, most metal forming processes require mixed lubrication regime at tool workpiece interface [1][2][3]. The main peculiarity of the mixed lubrication regime is that the contact pressure between tools and workpieces is partly managed by the contact between asperities, and partly by the lubricant.…”

Section: Introductionmentioning

confidence: 99%

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Local approach strategy to predicting final roughness in cold rolling of stainless steel strips

Deltombe

Belotserkovets

Dubar

et al. 2011

Proceedings of the Institution of Mechanical Engineers, Part J:

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Good surface finish is an important requirement for many stainless steel products essentially in terms of brightness. This article deals with an original numerical approach proposed in order to better control workpiece roughness during cold rolling. As a first step, to supply the numerical model, the blasted strip rheology is identified using an inverse finite element methodology based on Vickers indentations. As a second step, a fluid-structure strong coupling model is proposed to determine the flattening of steel strip asperities during the first passes of a cold rolling sequence. Fluid flowrate between each valley is solved using local Reynolds' equations. The volume of the lubricant trapped and its pressure are updated on the cold rolling model. At the same time, asperities are deformed from the entry to the exit to reach their final shape. Roughness sensitivity to the industrial process parameters, to the rheological parameters, and to the lubricant rheology is discussed.

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Section: Introductionmentioning

confidence: 99%

“…Two main ways have been developed. The first one is based on hydrostatic approaches and takes into account the lubricant as a given pressurized volume with or without fluid linkage [3,6]. The second relies on hydrodynamic approaches.…”

Section: Introductionmentioning

confidence: 99%