Numerical and experimental investigations of hydro-mechanical deep drawing process of laminated aluminum/steel sheets

Bagherzadeh, Saeed; Mirnia, Mohammad Javad; Dariani, Bijan Mollaei

doi:10.1016/j.jmapro.2015.03.004

Cited by 76 publications

(46 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In previous studies, scholars found that the forming behavior of multilayer metal composite sheets was strongly influenced by the layer stacking sequence [27,28,30,[39][40][41][42][43]. Sun et al [27] came to the conclusion that the forming limit of the Al/Cu clad metals with Al in the inner layer contacted with the punch is higher than the clad metals with Cu in the inner layer.…”

Section: Feature Size Effect On Forming Depthmentioning

confidence: 99%

“…Karajibani et al [28] found that in deep drawing of two-layer Al/St sheets, a larger limit drawing ratio can be achieved when the steel layer is in contact with the punch. Bagherzadeh et al [39] discovered that a higher drawing ratio could be achieved when the Al layer was set to contact with the punch in the hydroforming process of aluminum-steel sheets. Afshin and Kadkhodayan [30] concluded that less forming load was needed when a stainless steel layer rather than an aluminum layer was set as the upper layer to contact with the punch.…”

Section: Feature Size Effect On Forming Depthmentioning

confidence: 99%

See 1 more Smart Citation

Feature Size Effect on Formability of Multilayer Metal Composite Sheets under Microscale Laser Flexible Forming

Liu

Zhang

Gau

et al. 2017

Metals

View full text Add to dashboard Cite

Abstract:Multilayer metal composite sheets possess superior properties to monolithic metal sheets, and formability is different from monolithic metal sheets. In this research, the feature size effect on formability of multilayer metal composite sheets under microscale laser flexible forming was studied by experiment. Two-layer copper/nickel composite sheets were selected as experimental materials. Five types of micro molds with different diameters were utilized. The formability of materials was evaluated by forming depth, thickness thinning, surface quality, and micro-hardness distribution. The research results showed that the formability of two-layer copper/nickel composite sheets was strongly influenced by feature size. With feature size increasing, the effect of layer stacking sequence on forming depth, thickness thinning ratio, and surface roughness became increasingly larger. However, the normalized forming depth, thickness thinning ratio, surface roughness, and micro-hardness of the formed components under the same layer stacking sequence first increased and then decreased with increasing feature size. The deformation behavior of copper/nickel composite sheets was determined by the external layer. The deformation extent was larger when the copper layer was set as the external layer.

show abstract

Section: Feature Size Effect On Forming Depthmentioning

confidence: 99%

Section: Feature Size Effect On Forming Depthmentioning

confidence: 99%

Feature Size Effect on Formability of Multilayer Metal Composite Sheets under Microscale Laser Flexible Forming

Liu

Zhang

Gau

et al. 2017

Metals

View full text Add to dashboard Cite

show abstract

“…In this study, equivalent plastic strain (PEEQ) criterion was used to predict necking in bending process. Scalar equivalent plastic strain quantity represents inelastic deformations where a positive PEEQ indicates yielding [12]. As it is known, when a piece is necked, the greatest strain will happen at the necking area to tear the piece.…”

Section: Necking Criterionmentioning

confidence: 99%

“…Bagherzadeh et al [12] used the present necking criterion to predict the necking of laminated aluminum/steel sheets in hydro-mechanical deep drawing process. To verify FE results, experimental works were conducted on the widely used laminated aluminum/steel sheets.…”

Section: Necking Criterionmentioning

confidence: 99%

Predicting the bending limit of AA8112 tubes using necking criterion in manufacturing of bent tubes

Elyasi

Mehrdad

Hosseinzadeh

2016

Int J Adv Manuf Technol

View full text Add to dashboard Cite

Nowadays, thin-walled tube bending at small bending ratios is a production process widely used in advanced industries. This research has been carried out to obtain the smallest bending ratio, and maximum applicable internal pressure in Hydro-rotary draw bending of thin-walled AA8112 alloy tube using necking criterion. To accomplish the objective, equivalent plastic strain of extrados critical region has been selected for necking criterion. The results showed that the selected necking criterion would be able to successfully determine the onset of rupture in bending. In order to validate FE simulation, the effects of bending ratio and internal pressure on defects, such as cross-section ovality and thickness changing, have also been investigated through simulation in ABAQUS software and experiments.

show abstract

“…It has been used for improvement of drawability, simplification of processing steps and promotion of product's quality [1][2][3][4]. In traditional hydro forming processes, for example, hydro deep drawing, the hydraulic pressure is generally corresponding with the drawing process [5,6].…”

Section: Introductionmentioning

confidence: 99%

Effects of hydraulic pressure on wrinkling and earing in micro hydro deep drawing of SUS304 circular cups

Luo

Wei

Wang

et al. 2016

Int J Adv Manuf Technol

View full text Add to dashboard Cite

Influences of hydraulic pressure on forming features in micro hydro deep drawing are different from those in normal drawing due to the small size of specimens. In this study, micro hydro deep drawing of SUS304 sheets was carried out in order to study the impacts of the hydraulic pressure on the quality of the drawn cup. Experimental results indicate that there is a critical hydraulic pressure range from 3 to 6 % of the blank's initial yield stress, where wrinkling and earing development trends change twice. The wrinkling and the earing of the drawn cup also reach their local extremes in the critical pressure range. The cup earing value moves in the opposite direction from the wrinkling value. Hydraulic pressure affects the wrinkling and the earing of the drawn cup through changes in the micro-frictional condition, the shape of the blank and its strain-stress state. Micro-finite element (FE) simulation which takes these factors as well as the material size effects into consideration showed similar results to the experimental ones, thus validating the experimental results and the suitability of the micro-simulation model for micro-forming FE simulation. The experimental and simulation results indicate that the critical hydraulic pressure based on the blank's initial yield stress can restrict the wrinkling and the earing of the drawn cup. Ultra-high pressure has the potential to avoid the cup wrinkling and earing. AbstractInfluences of hydraulic pressure on forming feature of cups are different in micro hydro deep drawing due to size effects. In this study, the micro hydro deep drawing of SUS304 sheets was conducted to study the impacts of the hydraulic pressure on drawn cups' quality. Experimental results indicate that there is a critical hydraulic pressure range from three to six percent of blank's initial yield stress, where wrinkling and earing developing trends change twice. The wrinkling and earing also reach their local extremums in the critical pressure range. The earing is strongly related to the wrinkling phenomenon. Friction plays an important role in micro hydro deep drawing and significantly affects the wrinkling and the earing of the drawn cup. Moreover, micro scale simulation with consideration of the size effects and friction change presents similar wrinkling development trend to that in the experiments, which proves the influence and importance of the size effects and friction change.

show abstract

Numerical and experimental investigations of hydro-mechanical deep drawing process of laminated aluminum/steel sheets

Cited by 76 publications

References 21 publications

Feature Size Effect on Formability of Multilayer Metal Composite Sheets under Microscale Laser Flexible Forming

Feature Size Effect on Formability of Multilayer Metal Composite Sheets under Microscale Laser Flexible Forming

Predicting the bending limit of AA8112 tubes using necking criterion in manufacturing of bent tubes

Effects of hydraulic pressure on wrinkling and earing in micro hydro deep drawing of SUS304 circular cups

Contact Info

Product

Resources

About