Influence of anisotropy of additively manufactured AlSi10Mg parts on chip formation during orthogonal cutting

Segebade, Eric; Gerstenmeyer, Michael; Dietrich, Stefan; Zanger, Frederik; Schulze, Volker

doi:10.1016/j.procir.2019.04.043

Cited by 27 publications

(13 citation statements)

References 2 publications

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“…hardness, alpha lamellae strain and thickness, proving the model suitability to catch the AM metal peculiar behaviour during cutting (see Figure 6). For a proper numerical modelling, the anisotropic characteristics of the AM metal must be also taken into account, as was done in [22] where orthogonal cutting experiments, carried out on SLM AlSi10Mg aluminum alloy samples, were simulated using the Hill 1948 anisotropy model. It was found that the cutting direction with respect to the building direction mostly influenced the chip geometry and chip segmentation behavior, being the largest effect in case of 45°samples.…”

Section: Discussionmentioning

confidence: 99%

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Machining of Additive Manufactured Metal Alloys

Bruschi

Bertolini

Ghiotti

2022

KEM

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Additive Manufacturing of metal alloys offers unique advantages for producing net-shape components of complex geometries with very little waste of material. Nevertheless, machining operations may be needed on functional surfaces to get the required surface finish and geometrical tolerances. This poses challenging issues since the microstructural features characterizing the AM alloys are drastically different from those of the wrought alloys of the same chemical composition, which, in turn, may affect the mechanical and machining response to a great extent. This paper shows that both the machined surface integrity and tool wear are greatly affected by the microstructural features induced by the previous AM process as well as by the build-up orientation.

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Section: Discussionmentioning

confidence: 99%

“…6. Comparison between experimental and numerical outcomes when simulating turning of EBM Ti6Al4V: lamellae strain (left), and nanohardness under cryogenic cooling (right) (adapted from [22]).…”

Section: Discussionmentioning

confidence: 99%

Machining of Additive Manufactured Metal Alloys

Bruschi

Bertolini

Ghiotti

2022

KEM

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“…In this study, AlSi10Mg alloy produced by SLM method was used as target materials and 4340-H steel was selected as projectile material. Johnson-Cook strength and damage model parameters for AlSi10Mg [16] and 4340-H steel [17] were taken from the literature and tabulated in Table 1. Since the damage parameter was not added for steel, "EFFEPS" (maximum effective strain at failure) parameter was selected as 0.3 in the "MAT_ADD_EROSION" section of the model.…”

Section: Methodsmentioning

confidence: 99%

Effect of Unit Cell Height on the Ballistic Performance of the Body-Centered Lattice Structures

KAYA¹,

Hafizoglu

Babacan³

2022

International Journal of Innovative Engineering Applications

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Original scientific paperLattice structures, produced by metal additive manufacturing technology, can be a potential alternative in armor applications, which are important parts of defense technologies due to their shock wave damping, energy absorption and light-weight properties. Despite the fact that the protection of metal lattice structures against explosives has been frequently investigated in the literature, their perforation performance is rarely studied. In this research, numerical ballistic penetration tests were carried out with Johnson-Cook strength and failure model parameters by using LS-DYNA software. AlSi10Mg alloy was chosen as a lattice material, which has high energy absorption ability. Both width and length were chosen as 4 mm for the body-centered lattice structure, while eight different cell height (3,4,5,6,7,8,9 and 15 mm) were used as unit cell parameters. The results show that the ballistic performance of lattice structures could be improved by optimizing the unit cell height for the body-centered lattice structures.

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“…It is also influenced by the structure of the material resulting from its production technology. Research done by Segebade et al [17] revealed a strong influence of the AlSi10Mg sinter anisotropy on the shape and segmentation process of the chip during turning. Controlling and more efficient removal of chip from the cutting zone are possible thanks to the use of additional cooling [5].…”

Section: Introductionmentioning

confidence: 99%

“…Research conducted by Read et al [15] and Yan et al [16] show that the structure of castings is more homogeneous, while objects made by sintering have a clearly layered, porous structure and material discontinuities resulting from incomplete remelting of the powder and the presence of oxide inclusions [1,12,16]. Segebade et al [17] and Tang et al [18] noticed strong anisotropic properties of AlSi10Mg sinters. Zyguła et al [19] and Rosenthal et al [20] showed that the structural defects of such objects can be eliminated by optimizing the parameters of the sintering process as well as the subsequent heat treatment.…”

Section: Introductionmentioning

confidence: 99%

Study on Chip Breakability Index During Longitudinal Turning of Cast and DMLS Additively Manufactured AlSi10Mg Aluminum Alloy

Struzikiewicz¹,

Słodki²,

Zębala³

et al. 2022

Adv. Sci. Technol. Res. J.

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The article presents selected issues related to the process of turning samples made of the AlSi10Mg alloy with the use of various manufacturing technologies, i.e. casting and DMLS (Direct Metal Laser Sintering). Machining processes of cylindrical surfaces of samples made with these two methods were subjected to a comparative analysis. The main idea behind the research was to develop guidelines for turning parts obtained using laser powder sintering. Study on the infl uence of cutting parameters on the value of breakability index C in . as well as the type, shape and form of chips produced during longitudinal turning is presented. The chips were also measured and the results of the microscopic analysis of the chips form are described. Results showed that the values of C in index for turning of the cast AlSi10MG alloy depend mainly on the value of feed f. According to adopted chip classifi cation for the feed value of f > 0.1 mm/rev the chips had a favorable, short form. In the case of turning the sample obtained by the DMLS method, the values of the chip breakability index C in are not signifi cantly dependent on the adopted ranges of cutting parameters. The Taguchi method was used to develop the conclusions obtained on the basis of the research results.

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Influence of anisotropy of additively manufactured AlSi10Mg parts on chip formation during orthogonal cutting

Cited by 27 publications

References 2 publications

Machining of Additive Manufactured Metal Alloys

Machining of Additive Manufactured Metal Alloys

Effect of Unit Cell Height on the Ballistic Performance of the Body-Centered Lattice Structures

Study on Chip Breakability Index During Longitudinal Turning of Cast and DMLS Additively Manufactured AlSi10Mg Aluminum Alloy

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