Experimental and Numerical Study of Media Action During Tribofinishing in the Case of SLM Titanium Parts

Salvatore, Ferdinando; Grange, Fabien; Kamiński, Radosław; Claudin, C.; Kermouche, Guillaume; Rech, Joël; Texier, Alain

doi:10.1016/j.procir.2017.03.251

Cited by 22 publications

(11 citation statements)

References 12 publications

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“…The transversal impact has a minimal effect on the plastic deformation, and it is mainly responsible for the material erosion. By contrast, the normal impact is evident in the form of material depression that significantly transforms the surface topology compared to the as‐built state, Figure 3a, b [8, 33, 43]. A similar observation was observed in the heat‐treated samples; however, the impression was shallow than the as‐built state, considering the high hardness of the aged samples, Figure 4.…”

Section: Resultssupporting

confidence: 61%

“…In this study, the drag finishing process was selected for the surface treatment of the maraging samples. Drag finishing is an advanced form of vibratory surface finishing process popularly used for mass finishing operations in industries [33]. Here, the samples are attached to the fixture and dragged for several hours inside a container, having a large number of small granules to flatten the surface and impart necessary compressive stresses.…”

Section: Introductionmentioning

confidence: 99%

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The impact of aging and drag‐finishing on the surface integrity and corrosion behavior of the selective laser melted maraging steel samples

Khan

Özer

Tarakçı

et al. 2021

Materialwissenschaft Werkst

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The maraging steel components fabricated using the selective laser melting process exhibit remarkable static strength. However, high pore density and large surface imperfections impede their overall mechanical and chemical performance. Thus, the components are often post‐treated with mechanical‐ and thermal‐based treatments to overcome their inherent imperfections and enhance their final mechanical properties. Although the post‐processing treatments are useful in enhancing the selective laser melted components’ mechanical performance, their effect on corrosion behavior is not comprehensively evaluated. In this study, the selective laser melting prepared maraging steel samples’ corrosion behavior was examined in the as‐built condition and compared with the post‐processed samples subjected to aging and drag finishing operations. Compared to the as‐built condition, both aging and drag‐finishing post‐processing treatments increased the selective laser melting samples’ corrosion even though the surface integrity was improved.

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Section: Resultssupporting

confidence: 61%

Section: Introductionmentioning

confidence: 99%

The impact of aging and drag‐finishing on the surface integrity and corrosion behavior of the selective laser melted maraging steel samples

Khan

Özer

Tarakçı

et al. 2021

Materialwissenschaft Werkst

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“…Numerical simulations of the experimental device have been developed by Salvatore et al in order to simulate the continuous flow of the abrasive around the work sample [17]. Numerical simulations were performed with the discrete element method in order to identify the local conditions of contact (pressures and velocities).…”

Section: Literature Reviewmentioning

confidence: 99%

Determining kinetic energy distribution of the working medium in a centrifugal disc finishing process—part 1: theoretical and numerical analysis with DEM method

Sutowski

Plichta

Kaldunski

2019

Int J Adv Manuf Technol

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The centrifugal disc finishing process is an abrasive technique of mass machining, and it is very effective but very frequently time consuming. In this paper, a simulation of the centrifugal disc finishing process was presented in order to estimate the kinetic energy distribution of the working medium and to find its regions that make the process more efficient. Numerical results were obtained using an explicit method in the Ansys/Ls-Dyna program. Due to the fact that the physical properties of numerous objects in free motion need to be calculated in a simulation process, the discrete element method (DEM) was used. Results from the numerical simulations indicate that the velocity and energy of particles is variable in an axial cross-section of working medium. The article presents particle velocity distributions in the working chamber for various rotational speeds of the rotor. The typical changes in velocity in the function of time are also discussed. Statistical important functions of the average kinetic energy of the working medium and accumulated energy by machining surface have been estimated in respect to the rotational speed and machining time with a high value of adjustment coefficients. This article constitutes the first stage of research, which is continued in order to experimentally verify the results in the real process, as presented in the companion paper (Part 2: Experimental analysis with the use of acoustic emission signal).

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“…Most notably, Gillespie [1] is recognised as one of the earliest and major contributors in this field, with his book being used as a guide to research. Further important publications [2,3] are a reference for the scientific community and professionals alike. A more recent key paper [4] on topographical development and areal characterization provides guidance on the optimal parameters and sampling method to characterise this surface type for a given application.…”

Section: Introductionmentioning

confidence: 99%

Design Process Control for Improved Surface Finish of Metal Additive Manufactured Parts of Complex Build Geometry

Jamal

Morgan

2017

Inventions

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Abstract:Metal additive manufacturing (AM) is increasingly used to create complex 3D components at near net shape. However, the surface finish (SF) of the metal AM part is uneven, with surface roughness being variable over the facets of the design. Standard post-processing methods such as grinding and linishing often meet with major challenges in finishing parts of complex shape. This paper reports on research that demonstrated that mass finishing (MF) processes are able to deliver high-quality surface finishes (Ra and Sa) on AM-generated parts of a relatively complex geometry (both internal features and external facets) under select conditions. Four processes were studied in this work: stream finishing, high-energy (HE) centrifuge, drag finishing and disc finishing. Optimisation of the drag finishing process was then studied using a structured design of experiments (DOE). The effects of a range of finishing parameters were evaluated and optimal parameters and conditions were determined. The study established that the proposed method can be successfully applied in drag finishing to optimise the surface roughness in an industrial application and that it is an economical way of obtaining the maximum amount of information in a short period of time with a small number of tests. The study has also provided an important step in helping understand the requirements of MF to deliver AM-generated parts to a target quality finish and cycle time.

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Experimental and Numerical Study of Media Action During Tribofinishing in the Case of SLM Titanium Parts

Cited by 22 publications

References 12 publications

The impact of aging and drag‐finishing on the surface integrity and corrosion behavior of the selective laser melted maraging steel samples

The impact of aging and drag‐finishing on the surface integrity and corrosion behavior of the selective laser melted maraging steel samples

Determining kinetic energy distribution of the working medium in a centrifugal disc finishing process—part 1: theoretical and numerical analysis with DEM method

Design Process Control for Improved Surface Finish of Metal Additive Manufactured Parts of Complex Build Geometry

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