Creep Age Forming of Aluminum 7075 Tailor-Machined Blanks: Statistical Modeling, Sensitivity Analysis and Multi-objective Optimization

Safari, Mehdi; Hamidipour, S.; Elahi, S. Hossein; Tahmasbi, Vahid

doi:10.1007/s12666-019-01836-4

Cited by 2 publications

(5 citation statements)

References 13 publications

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“…RSM is usually applied together with a factorial design to reduce experimentation cost (Ref [44][45][46][47][48]. This method has a long history and nowadays has numerous applications in industrial and manufacturing (Ref 49,50); it is specifically used in combination with finite element models. ( Ref 51,52).…”

Section: Response Surface Methodsmentioning

confidence: 99%

Statistical and Experimental Analysis of Process Parameters of 3D Nylon Printed Parts by Fused Deposition Modeling: Response Surface Modeling and Optimization

Moradi

Aminzadeh

Rahmatabadi

et al. 2021

J. of Materi Eng and Perform

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In the current study, the additive manufacturing of nylon by fused deposition modeling is conducted based on statistical analysis. Besides, the aim of this study is the influence of process parameters, namely layer thickness (0.15 mm-0.35 mm), infill percentage (15-55%), and the number of contours (2-6) on the maximum failure load, parts weight, elongation at break, and build time. The experiment approach was used to optimize process parameters based on the statistical evaluates to reach the best objective function. The minimum value of build time and maximize of the failure load were considered as objective functions. The response surface method is regarded as an optimization process parameter, and optimum conditions were studied by experimental research to evaluate efficiency. Based on the results, the layer thickness is the significant primary variable for all responses. The experimental evaluation showed that the maximum values of failure load and elongation were obtained by changing the layer thickness from the lowest to the highest. By reduction in layer thickness at the same printing speed, the cooling rate increases, which results in greater strength and less elongation. As a result, it could be concluded that by increasing the number of contour layers from 2 to 6, the maximum failure force increased 42%. Increasing the contours due to the similar effect to increasing the infill density, increases the failure force and production time, which is also confirmed by the ANOVA.

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Section: Response Surface Methodsmentioning

confidence: 99%

Statistical and Experimental Analysis of Process Parameters of 3D Nylon Printed Parts by Fused Deposition Modeling: Response Surface Modeling and Optimization

Moradi

Aminzadeh

Rahmatabadi

et al. 2021

J. of Materi Eng and Perform

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“…Therefore, as the time and temperature increase and elastic strains decreases, the creep strains increase and hence, the springback decreases. (Adapted from [27], with permission from Springer Nature, 2021).…”

Section: Resultsmentioning

confidence: 99%

“…They showed that the springback of AA7075 decreases b increasing time and temperature. Safari et al [27] studied the statistical modeling, sensi tivity analysis and multi-objective optimization of CAF of aluminum AA7075 tailor-ma chined blanks (TMB). They investigated the effects of time and temperature on springbac of TMBs after the CAF process.…”

Section: Fml Preparationmentioning

confidence: 99%

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Creep Age Forming of Fiber Metal Laminates: Effects of Process Time and Temperature and Stacking Sequence of Core Material

et al. 2021

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Fiber metal laminates (FMLs) are a type of hybrid materials interlacing composites and metals. In the present work, FMLs with aluminum alloy 6061 as the skin and E-glass fiber-reinforced polypropylene (PP) as the core material are fabricated and formed by the creep age forming (CAF) process. The effects of time and temperature as the process parameters and thickness and stacking sequences of composites layers as the FML parameters are evaluated on the springback of glass-reinforced aluminum laminates (GLARE) FMLs. After the CAF process, the springback of creep age-formed FMLs is calculated. The results show that the FMLs can be successfully formed with the CAF process by considering appropriate time and temperature. In addition, the stacking sequence of composite layers can affect the springback behavior of FMLs significantly.

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Creep Age Forming of Aluminum 7075 Tailor-Machined Blanks: Statistical Modeling, Sensitivity Analysis and Multi-objective Optimization

Cited by 2 publications

References 13 publications

Statistical and Experimental Analysis of Process Parameters of 3D Nylon Printed Parts by Fused Deposition Modeling: Response Surface Modeling and Optimization

Statistical and Experimental Analysis of Process Parameters of 3D Nylon Printed Parts by Fused Deposition Modeling: Response Surface Modeling and Optimization

Creep Age Forming of Fiber Metal Laminates: Effects of Process Time and Temperature and Stacking Sequence of Core Material

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