Fabrication of skin layer on aluminum foam surface by friction stir incremental forming and its mechanical properties

Matsumoto, Ryo; Tsuruoka, Hiroyuki; Otsu, Masaaki; Utsunomiya, Hiroshi

doi:10.1016/j.jmatprotec.2014.11.030

Cited by 37 publications

(19 citation statements)

References 12 publications

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“…Though adhesive is the most common method with low cost and simple operation [17], adhesive AFS has some drawbacks such as low joining strength and low-temperature resistance. In order to improve the joining strength and temperature resistance, metallurgical joining techniques such as casting, brazing [18] and soldering [19] are developed. Besides these traditional techniques, some other joining techniques based on metallurgical joining also have been proposed and investigated feasibility.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and Fatigue Behavior of Aluminum Foam Sandwich Panel via Liquid Diffusion Welding Method

Cheng

Fan

et al. 2019

Metals

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Aluminum Foam Sandwich panels were fabricated via liquid diffusion welding and glue adhesive methods. The Microstructure of the Aluminum Foam Sandwich joints were analyzed by Optical Microscopy, Scanning Electron Microscopy, and Energy Dispersive Spectroscopy. The metallurgical joints of Aluminum Foam Sandwich panels are compact, uniform and the chemical compositions in the diffusion transitional zone are continuous, so well metallurgy bonding between Aluminum face sheet and foam core was obtained. The joining strength of an Aluminum Foam Sandwich was evaluated by standard peel strength test and the metallurgical joint Aluminum Foam Sandwich panels had a higher peel strength. Moreover, a three-point bending fatigue test was conducted to study the flexural fatigue behavior of Aluminum Foam Sandwich panels. The metallurgical joint panels have a higher fatigue limit than the adhesive joining sandwich. Their fatigue fracture mode are completely different, the failure mode of the metallurgical joint is faced fatigue; the failure mode for the adhesive joint is debonding. Therefore, the higher joining strength leads to a longer fatigue life.

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Section: Introductionmentioning

confidence: 99%

Fabrication and Fatigue Behavior of Aluminum Foam Sandwich Panel via Liquid Diffusion Welding Method

Cheng

Fan

et al. 2019

Metals

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“…Different applications of AFS have led to the development of various Al-alloy foam manufacturing and Al-alloy foam/Al-alloy sheet joining techniques, such as casting, brazing [5], and soldering [6] techniques. The current practice of AFS components joining using adhesives and solders restrict the applications of AFS composite panels in the range 220 • C-380 • C. The fabrication of AFS composite panels for higher service temperatures requires alternative joining methods and materials, which is focused in this study.…”

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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“…In the process, the cell walls near the surface were plastically deformed by a rotating tool with a high rotation rate. A non-porous layer thinner than 0.4 mm was fabricated at the surface without internal fracture of the aluminium foam [27]. Kwon at al.…”

Section: Introductionmentioning

confidence: 99%

“…The result of such sheet metal forming is a fine-grained surface structure of the product. The structure is formed by dynamic recrystallization at high temperatures, caused by friction [27].…”

Section: Introductionmentioning

confidence: 99%

The Influence of Machining Parameters on the Surface Porosity of a Closed-Cell Aluminium Foam

Razboršek¹,

Gotlih²,

Karner³

et al. 2019

SV-JME

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Aluminium foam elements foamed into moulds, have a porous core, surrounded by a thin layer of non-porous outer surface. This layer affects the homogeneity and mechanical properties of the element significantly. To produce functional elements, the foams can be machined to a desired end shape. Machining deforms the surface structure, which results in a reduction of strength properties. This article describes an experimental approach to determine the effects of machining parameters on the surface porosity of closed-cell aluminium foam samples. The samples were machined by incremental forming and friction rolling with precisely defined processing parameters (deformation depth, feed rate and spindle speed). High-resolution digital photos of the treated surfaces were taken and analysed using image segmentation with a multispectral threshold algorithm. The change of surface porosity was calculated for each sample, and the influence of the selected machining parameters was determined by the use of response surface methodology. The optimal machining parameters are presented.

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Fabrication of skin layer on aluminum foam surface by friction stir incremental forming and its mechanical properties

Cited by 37 publications

References 12 publications

Fabrication and Fatigue Behavior of Aluminum Foam Sandwich Panel via Liquid Diffusion Welding Method

Fabrication and Fatigue Behavior of Aluminum Foam Sandwich Panel via Liquid Diffusion Welding Method

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

The Influence of Machining Parameters on the Surface Porosity of a Closed-Cell Aluminium Foam

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