New Approaches to Aluminum Integral Foam Production with Casting Methods

Güner, Ahmet; Arikan, Mustafa; Nebioğlu, Mehmet

doi:10.3390/met5031553

Cited by 24 publications

(7 citation statements)

References 51 publications

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“…AFS are made of thin rigid Al-alloy sheets (facing sheets) joined with a porous, lightweight Al-alloy foam (core). The outer sheets bear the tensile loads while the foam core contributes to absorbing static and dynamic impact energies [3]. Most recently Al-alloy metal foam parts were developed by the Technical University Berlin and Pohltec Metalfoam used in the prototype of an ultra-light electric vehicle recently developed in a European project [4].…”

Section: Introductionmentioning

confidence: 99%

Joining of Aluminium Alloy Sheets to Aluminium Alloy Foam Using Metal Glasses

Bangash

Ubertalli

Saverio

et al. 2018

Metals

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Aluminium alloy foam is a lightweight material with high energy absorption properties and can potentially replace bulk Al-components. The aim of this work is to develop a brazing technique to join aluminium facing sheets to aluminium alloy foam to obtain aluminium foam sandwich panels for applications where high service temperature is a requirement. Al-6016 alloy sheets were brazed to aluminium alloy foam using two aluminium based (Al-Cu-Mg and Al-Si-Mg-Ti) metal glasses at 560 • C-590 • C in an argon atmosphere. Microstructure and microhardness profiles of the aluminium alloy sheet/aluminium alloy foam brazed joints were analysed using a microhardness tester and scanning electron microscope equipped with electron dispersion spectroscopy. A three-point bending test was conducted to study the flexural behaviour of the aluminium foam sandwich composite panels.

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Section: Introductionmentioning

confidence: 99%

Joining of Aluminium Alloy Sheets to Aluminium Alloy Foam Using Metal Glasses

Bangash

Ubertalli

Saverio

et al. 2018

Metals

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“…The metal was used to fill the landing leg and it crushed to absorb the landing impact to achieve soft landing. In addition, recent advances in casting technology and metal threedimensional additive manufacturing made it possible to fabricate metal foam with diverse mechanical properties and shapes [4][5][6][7]. Therefore, metal foam is being considered for application in various mechanical systems, including the bumper and crash box of vehicles as well as landing gear [8].…”

Section: Introductionmentioning

confidence: 99%

Motion analysis method of multibody system with contact and plastic deformation using linear complementarity problem

2021

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This study proposes a method to analyse the motion of a multibody system with components subjected to large plastic deformations by contact and collision. The method is based on the mathematical similarity between the non-smooth behaviour of the contact and collision phenomena and the complementarity associated with the nonlinearity of plastic deformation. The material nonlinearity of plastic deformation is described by the complementarity condition for stress and strain. An analysis method of rigid non-smooth contact and collision phenomena was previously reported to solve a linear complementarity problem by using the complementarity condition for state transition. In this study, by extending the concept of state transition in the previously reported method, the complementarity of stress and strain related to plastic deformation is expressed as a dynamics problem and formulated as a linear complementarity problem incorporating contact. Hence, the problem can be analysed considering both contact and yield phenomena by solving one linear complementarity problem. The proposed method is evaluated using numerical analysis.

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“…Use of metal foams as one of several components in multi-material, hybrid, and similar structures integral foams integral foam casting [ 53 , 54 , 55 ] integration of foam parts in metal castings two component processes for syntactic foams produced via metal injection molding (MIM) [ 56 ] sandwich structures Aluminium Foam Sandwich (AFS) [ 10 , 57 ] steel face sheet sandwich materials via foaming between face sheets [ 58 ] APM-based sandwich [ 59 ] CFRP-metal foam sandwich structures etc. foam-filled hollow components in situ foaming to achieve foam-filled tubes and extrusions [ 60 , 61 , 62 , 63 ] co-extrusion of conventional and foamable material followed by in situ foaming [ 8 ] ex situ foaming and subsequent adhesive bonding of cores to hollow metallic structures [ 61 , 64 , 65 ] ex situ foaming and subsequent adhesive bonding of cores to hollow CFRP structures, including use of metal foam parts as permanent core/mandrel in FRP production, e.g., filament winding [ 66 , 67 ] etc.…”

Section: Introductionmentioning

confidence: 99%

“…integral foams integral foam casting [ 53 , 54 , 55 ] integration of foam parts in metal castings two component processes for syntactic foams produced via metal injection molding (MIM) [ 56 ] …”

Section: Introductionmentioning

confidence: 99%

From Stochastic Foam to Designed Structure: Balancing Cost and Performance of Cellular Metals

et al. 2017

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Over the past two decades, a large number of metallic foams have been developed. In recent years research on this multi-functional material class has further intensified. However, despite their unique properties only a limited number of large-scale applications have emerged. One important reason for this sluggish uptake is their high cost. Many cellular metals require expensive raw materials, complex manufacturing procedures, or a combination thereof. Some attempts have been made to decrease costs by introducing novel foams based on cheaper components and new manufacturing procedures. However, this has often yielded materials with unreliable properties that inhibit utilization of their full potential. The resulting balance between cost and performance of cellular metals is probed in this editorial, which attempts to consider cost not in absolute figures, but in relation to performance. To approach such a distinction, an alternative classification of cellular metals is suggested which centers on structural aspects and the effort of realizing them. The range thus covered extends from fully stochastic foams to cellular structures designed-to-purpose.

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New Approaches to Aluminum Integral Foam Production with Casting Methods

Cited by 24 publications

References 51 publications

Joining of Aluminium Alloy Sheets to Aluminium Alloy Foam Using Metal Glasses

Joining of Aluminium Alloy Sheets to Aluminium Alloy Foam Using Metal Glasses

Motion analysis method of multibody system with contact and plastic deformation using linear complementarity problem

From Stochastic Foam to Designed Structure: Balancing Cost and Performance of Cellular Metals

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