Numerical Simulation of Hot Stamping Forming of AZ Series Magnesium Alloys and Optimization of Die Process

Qian, Fang

doi:10.1155/2022/6484242

Cited by 3 publications

(2 citation statements)

References 25 publications

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“…La force du serre flan a un impact sur la distribution d'épaisseur en engendrant un amincissement important. Un essai a été réalisé sur un flan en forme de coupelle en alliage de magnésium AZ31B (Qian, 2022), la figure 6 est une courbe tracée en prenant 8 points sur la pièce lorsque la profondeur d'emboutissage est de 12 mm :…”

Section: L'emboutissage Double Effetunclassified

Un aperçu sur l’emboutissage profond

Bouzaffour¹,

Nassraoui²,

Bouksour³

2023

IncertFia

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L'emboutissage profond et la technique de réalisation de formes non développable par déformation plastique à froid de la tôle en utilisant généralement des outils doubles effets et qui nécessite un grand effort d'emboutissage, les déformations engendrées par l'emboutissage profond conduisent à des modifications de l'épaisseur de tôle, qui dans certaines zones s'amincissent en entrainant à un amincissement excessif ou une rupture, alors que d'autres soumises à la compression ou au retreint ont tendance à s'épaissir en générant des plis ou des ondulations, ce qui rend ce process plus difficile et pose un grand problème aux industries de fabrication des grandes pièces, notamment l'automobile, d'où l'intérêt d'agir sur les paramètres impactant l'emboutissage profond pour supprimer ces défauts. Dans ce papier, un aperçu sur les différents facteurs impactant la formabilité des pièces issues du procédé d'emboutissage profond et qui engendrent des défauts d'aspects comme les plis, ondulations, casses. ABSTRACT. Deep drawing and the technique of making forms that cannot be developed by cold plastic deformation of the sheet, generally using double-acting tools and requiring a great effort of drawing, the deformations caused by deep drawing lead to changes in the thickness of the sheet, which in certain areas become thinner, leading to excessive thinning or rupture, while others subjected to compression or shrinkage tend to thicken by generating folds or ripples, which makes this process more difficult and poses a major problem for large parts manufacturing industries, especially the automotive industry, Hence the interest to act on the parameters impacting deep drawing to remove these defects. In this paper, an overview of the various factors impacting the formability of parts from the deep drawing process and which cause defects in aspects such as folds, ripples, breaks. MOTS-CLÉS. Emboutissage profond, Automobile.

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Section: L'emboutissage Double Effetunclassified

Un aperçu sur l’emboutissage profond

Bouzaffour¹,

Nassraoui²,

Bouksour³

2023

IncertFia

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“…Tis article has been retracted by Hindawi following an investigation undertaken by the publisher [1]. Tis investigation has uncovered evidence of one or more of the following indicators of systematic manipulation of the publication process:…”

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confidence: 99%

Retracted: Numerical Simulation of Hot Stamping Forming of AZ Series Magnesium Alloys and Optimization of Die Process

2023

Journal of Chemistry

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Process Optimization of the Hot Stamping of AZ31 Magnesium Alloy Sheets Based on Response Surface Methodology

Zhao

Yang³

et al. 2023

Materials

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Hot stamping is an important manufacturing process for sheet metal parts. However, it is easy to produce defects such as thinning and cracking in the drawing area during the stamping process. In this paper, the finite element solver ABAQUS/Explicit was used to establish the numerical model of the magnesium alloy hot-stamping process. The stamping speed (2~10 mm/s), the blank-holder force (3~7 kN), and the friction coefficient (0.12~0.18) were selected as the influencing factors. Taking the maximum thinning rate obtained through simulation as the optimization objective, the response surface methodology (RSM) was applied to optimize the influencing factors in sheet hot stamping at a forming temperature of 200 °C. The results showed that the maximum thinning rate of sheet metal was most influenced by the blank-holder force, and the interaction between the stamping speed and the blank-holder force/friction coefficient had a great influence on the maximum thinning rate. The optimal value of the maximum thinning rate of the hot-stamped sheet was 7.37%. Through the experimental verification for the hot-stamping process scheme, the maximum relative error between the simulation and the experimental results was 8.72%. This proves the accuracy of the established finite element model and the response surface model. This research provides a feasible optimization scheme for the analysis of the hot-stamping process of magnesium alloys.

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Numerical Simulation of Hot Stamping Forming of AZ Series Magnesium Alloys and Optimization of Die Process

Cited by 3 publications

References 25 publications

Un aperçu sur l’emboutissage profond

Un aperçu sur l’emboutissage profond

Retracted: Numerical Simulation of Hot Stamping Forming of AZ Series Magnesium Alloys and Optimization of Die Process

Process Optimization of the Hot Stamping of AZ31 Magnesium Alloy Sheets Based on Response Surface Methodology

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