An experimental investigation into the warm deep-drawing process on laminated sheets under various grain sizes

Afshin, Ehsan; Kadkhodayan, Mehran

doi:10.1016/j.matdes.2015.07.061

Cited by 42 publications

(24 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, the limit drawing ratio depended on the experimental setup and was lower when the aluminum layer faced toward the punch. A similar behavior was obtained by simulation by Takuda et al [21] and Afshin et al in warm deep drawing [22].…”

Section: Introductionsupporting

confidence: 87%

Tensile properties and drawability of thin bimetallic aluminum-scandium-zirconium / stainless steel foils and monometallic Al-Sc-Zr fabricated by magnetron sputtering

et al. 2018

View full text Add to dashboard Cite

Al-Sc-Zr alloys are interesting for the production of high strength micro components by micro deep drawing. These alloys show a good hardenability due to the formation of nanometer-scale spheroidal Al3(Sc, Zr) precipitates, which are highly coherent with the aluminum matrix. However, the formation of these precipitates in Al-Sc-Zr foils fabricated by conventional metallurgical methods dramatically reduces their ductility and drawability. In this work, magnetron sputtering was used to produce Al-Sc-Zr foils and Al-Sc-Zr / stainless steel bimetallic foils which are nearly free of these precipitates. Tensile tests were carried out to measure and compare the mechanical properties of monometallic Al-Sc-Zr foils and bimetallic Al-Sc-Zr / stainless steel foils deposited with varying plasma target powers and containing different volume fractions (layer thickness) of Al-Sc-Zr. Micro deep drawing was used to determine the drawability of selected monometallic and bimetallic foils. The results show that the density of monometallic Al-Sc-Zr foils can be improved significantly by increasing the DC target power and by using the high power impulse magnetron sputtering (HiPIMS) technology, resulting in foils with higher ductility. Bimetallic foils achieved higher strength and ductility than monometallic Al-Sc-Zr foils. Their mechanical properties vary with the target power and the volume fraction (thickness) of Al-Sc-Zr. The limit drawing ratio of HiPIMS deposited monometallic foil was 1.7 or 1.8 depending on the side of the foil facing the die, whereas a limit drawing ratio of 1.9 was observed for bimetallic foils.

show abstract

Section: Introductionsupporting

confidence: 87%

Tensile properties and drawability of thin bimetallic aluminum-scandium-zirconium / stainless steel foils and monometallic Al-Sc-Zr fabricated by magnetron sputtering

et al. 2018

View full text Add to dashboard Cite

show abstract

“…However, only a few studies have probed into the size effect phenomenon of the formability of multilayer metal composite sheets. Afshin and Kadkhodayan [30] investigated the effect of grain size of the aluminum layer on the warm deep drawing performance of aluminum/steel composite sheets. They concluded that the effect of grain size of the aluminum layer on formability was determined by blank hold force.…”

Section: Experimental Materialsmentioning

confidence: 99%

“…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%

“…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. By means of experiment and finite element simulation, Atrian and Fereshteh-Saniee [40] verified that, in the deep drawing process of laminated steel/brass sheets, the load-displacement curve and the influence extent of friction on forming load were significantly different under different stacking sequences.…”

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

“…In addition, effect of temperature, grain size (GS) and Blank Holder Force (BHF) on loaddisplacement curves were studied in the authors previous work [14,15]. The thickness distribution and fracture zone for each individual layer is also studied in the current study.…”

Section: Introductionmentioning

confidence: 97%

Thinning behavior of laminated sheets metal in warm deep-drawing process under various grain sizes

Kadkhodayan

Afshin

2016

MATEC Web Conf.

Self Cite

View full text Add to dashboard Cite

Abstract. The purpose of present research is to investigate the thickness distribution on the warm deep-drawing process of laminated sheets consisting of aluminum alloy series 1050, 5052 and stainless steel 304 (SUS), experimentally. Individually for each layer, the influences of blank temperature and grain size on thinning behavior are clearly demonstrated. In order to survey the thinning behavior in laminate sheet behavior during warm deepdrawing process; three blank temperatures namely, 25̊ C, 100̊ C and 160̊ C are examined. Moreover, to obtain different grain sizes, the aluminum sheets are annealed at 350̊ C, 400̊ C and 450̊ C for 1 hour. Results indicate that increasing temperature and grain size lead to maximum thinning in all layers in Al 1050/SUS and Al 5052/SUS specimens increase. In addition, the most susceptible zone to fracture in aluminum sheets (Al 1050 and Al 5052) is punch profile radius region; nevertheless, for stainless steel sheets this zone switch to central zone of formed cup. These can be attributed to the fact that the adhesive layer play a crucial role in thickness distribution of steel 304 layer, therefore the distribution of thickness strain for adhesive layer is also investigated.

show abstract

An experimental investigation into the warm deep-drawing process on laminated sheets under various grain sizes

Cited by 42 publications

References 26 publications

Tensile properties and drawability of thin bimetallic aluminum-scandium-zirconium / stainless steel foils and monometallic Al-Sc-Zr fabricated by magnetron sputtering

Tensile properties and drawability of thin bimetallic aluminum-scandium-zirconium / stainless steel foils and monometallic Al-Sc-Zr fabricated by magnetron sputtering

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

Thinning behavior of laminated sheets metal in warm deep-drawing process under various grain sizes

Contact Info

Product

Resources

About