Material characterization for numerical simulation of manufacturing of automotive part made of magnesium alloy

Pietrzyk, M.; Kuziak, R.; Bzowski, Krzysztof; Rauch, Ł.; Ambroziński, M.; Gronostajski, Z.; Chorzępa, Władysław

doi:10.1007/s43452-019-0001-0

Cited by 4 publications

(3 citation statements)

References 16 publications

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“…knee point) and an “utopia point” obtained using the optimal values of each individual objective. Mathematically, the method is stated as 44 where m is the number of objective functions ( m = 2), fik is the i th objective value in the k th Pareto solution and d =2, 4, 6, … . The obtained Knee point is the (IPF = 45.76 kN, SEA = 24.05 kJ/kg).…”

Section: Resultsmentioning

confidence: 99%

Experimental, numerical, and multi-objective optimization investigations on the energy absorption features of single- and bi-layer deep-drawn cups

Ghasemabadian

Kadkhodayan

Altenhof

2020

Proceedings of the Institution of Mechanical Engineers, Part L:

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In this article, the energy absorption features of single- and bi-layer deep-drawn cups (S- and B-cups, respectively) under a quasi-static axial loading are investigated experimentally and numerically. The S-cups were made of 304L stainless steel and explosively welded B-cups were composed of aluminum and 304L stainless steel layers. A multi-objective optimization was performed on specific energy absorption and initial peak force based on the polynomial response surface method. Furthermore, to compare the energy absorption features of deep-drawn cups, two groups of 304L stainless steel tubes (with the same mass or the same height as the S-cups) were axially compressed. The experimental results indicated that the S-cups experienced total energy absorption and mean crush force approximately 24% and 51% greater than those of tubes with the same mass and thickness, respectively. Furthermore, the total efficiency and specific total efficiency of the S-cups were approximately 0.23 and 1.82 times greater than those of tubes with the same height and thickness. Moreover, the energy absorbing effectiveness factor of B-cups was approximately twice of the S-cup.

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Section: Resultsmentioning

confidence: 99%

Experimental, numerical, and multi-objective optimization investigations on the energy absorption features of single- and bi-layer deep-drawn cups

Ghasemabadian

Kadkhodayan

Altenhof

2020

Proceedings of the Institution of Mechanical Engineers, Part L:

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“…6 Among lightweight materials, magnesium alloys are less dense materials which are preferred for automotive applications. [7][8][9][10] The overall weight of the vehicle can be reduced up to 70% by the use of components of magnesium alloys. 5 In implementation of magnesium alloys in vehicles, many challenges have been reported by earlier researchers.…”

Section: Introductionmentioning

confidence: 99%

Influence of post welding heat treatment on the microstructure and mechanical properties of friction stir welding joint of AZ31 Mg alloy

Singh

Singh²,

Singh

2021

Proceedings of the Institution of Mechanical Engineers, Part E:

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At present, magnesium alloys are extensively used in numerous applications due to their light weight and better characteristics. Welding of magnesium alloys is regarded as one of the most complex phenomena in various industries. The friction stir welding of magnesium alloys has encouraged abundant scientific and industrial interest as it has the potency to form a good quality joint. Post welding heat treatment is an appropriate process to further improve the properties or performance of FSW joints. Therefore, the present work aims to join AZ31 Mg alloy plates by friction stir welding, and microstructural and mechanical properties of the joint have been examined. Furthermore, the consequence of post welding heat treatment on the microstructure and mechanical properties of FSW joint has been evaluated. Tensile strength and elongation of FSW joint were about 145.4 ± 4.9 MPa and 9.5 ± 0.9%, respectively. It was found that post welding heat treatment was beneficial in homogenizing grains and to enhance mechanical properties. Tensile strength and elongation of the joint were improved by 4.74% and 15.78% respectively after PWHT. The highest microhardness of stir zone decreased about 6.84% (73 Hv to 68 Hv) after heat treatment and hardness pattern of weld became relatively smooth. Toughness of PWHT joint was 4.5 ± 0.17 Joules. The mode of tensile failure of as-welded and PWHT joint was ductile.

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“…High specific strength, ductility, and low density of magnesium (Mg) alloys enhance its importance as a lightweight material in construction [1], transportation [2] and aerospace industries [3]. But, the scarcity of potential welding techniques is an obstacle in using Mg alloys for the industries [4].…”

Section: Introductionmentioning

confidence: 99%

Microstructural and Mechanical Behaviour Evaluation of Mg-Al-Zn Alloy Friction Stir Welded Joint

Singh¹,

Singh²,

Singh³

2020

IJAME

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The weight reduction concept is most effective to reduce the emissions of greenhouse gases from vehicles, which also improves fuel efficiency. Amongst lightweight materials, magnesium alloys are attractive to the automotive sector as a structural material. Welding feasibility of magnesium alloys acts as an influential role in its usage for lightweight prospects. Friction stir welding (FSW) is an appropriate technique as compared to other welding techniques to join magnesium alloys. Field of friction stir welding is emerging in the current scenario. The friction stir welding technique has been selected to weld AZ91 magnesium alloys in the current research work. The microstructure and mechanical characteristics of the produced FSW butt joints have been investigated. Further, the influence of post welding heat treatment (at 260 °C for 1 h) on these properties has also been examined. Post welding heat treatment (PWHT) resulted in the improvement of the grain structure of weld zones which affected the mechanical performance of the joints. After heat treatment, the tensile strength and elongation of the joint increased by 12.6 % and 31.9 % respectively. It is proven that after PWHT, the microhardness of the stir zone reduced and a comparatively smoothened microhardness profile of the FSW joint obtained. No considerable variation in the location of the tensile fracture was witnessed after PWHT. The results show that the impact toughness of the weld joints further decreases after post welding heat treatment.

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Material characterization for numerical simulation of manufacturing of automotive part made of magnesium alloy

Cited by 4 publications

References 16 publications

Experimental, numerical, and multi-objective optimization investigations on the energy absorption features of single- and bi-layer deep-drawn cups

Experimental, numerical, and multi-objective optimization investigations on the energy absorption features of single- and bi-layer deep-drawn cups

Influence of post welding heat treatment on the microstructure and mechanical properties of friction stir welding joint of AZ31 Mg alloy

Microstructural and Mechanical Behaviour Evaluation of Mg-Al-Zn Alloy Friction Stir Welded Joint

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