Multiobjective optimization of tribological characteristics of 3D printed texture surfaces for ABS and PLA Polymers

Mourya, Vishal; Bhore, Skylab P; Wandale, Parag G

doi:10.1177/08927057231185710

Cited by 12 publications

(4 citation statements)

References 54 publications

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“…Figure 6 represents the flow chart of GRA technique to obtain the optimized tribological behavior (LC and FF) of bump FJB. Our previous study briefly explains all these GRA steps [37,38]. Based on the RSM design matrix, the numerical analysis evaluates the LC and FF of bump FJB.…”

Section: Gra Optimizationmentioning

confidence: 99%

Comparative study on tribological behavior of foil journal bearings with micro pocket

Mourya,

Bhore

2024

Surf. Topogr.: Metrol. Prop.

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This study explore the tribological performance of bump foil journal bearings (FJBs) equipped with micro-pockets. The influence of micro-pockets on the load capacity (LC) and friction factor (FF) of FJBs is evaluated for various foil materials, including Inconel X750 (IN), Spring steel EN42J (SP), SS 316, Beryllium copper (BC), and Phosphor bronze (PB). The compressible Reynolds equation is solved numerically to assess the tribological behavior of bump FJBs under various operating conditions. Initially, the impact of micro pocket on the tribological characteristics such as load capacity and friction factor of bump FJBs is examined by comparing their performance with plain FJB. Subsequently, the effect of operating parameters such as pocket depth (PD), bearing number (Λ), and eccentricity (ɛ), on the tribological behavior is analysed by using response surface methodology (RSM). The multi-objective grey relational analysis (GRA) technique is employed to determine the optimal values of input variables for each foil material. The findings reveal that micro-pockets enhance the dimensionless LC of bump FJBs beyond a bearing number of 2.061. Moreover, micro-pockets reduce the friction factor of bump FJBs. SS 316 exhibits the most significant impact among the tested foil materials, while phosphor bronze exhibits the least. For SS 316, the optimal values pocket depth (PD), bearing number (Λ), and eccentricity ratio (ɛ) are 3μm, 2.061, and 0.5 respectively. Under these optimal conditions, the LC and FF of bump FJBs are 0.7740 and 13.645, respectively. Micro-pocket reduce the friction factor by 2 to 15%. The pocket depth in bump FJB is significant for the phosphor bronze foil material. Additionally, increasing the pocket depth enhances the dimensionless LC of bump FJBs while decreasing the friction factor.

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Section: Gra Optimizationmentioning

confidence: 99%

Comparative study on tribological behavior of foil journal bearings with micro pocket

Mourya,

Bhore

2024

Surf. Topogr.: Metrol. Prop.

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“…The mathematical relationship between the HT variables (temperature and time duration) and the rubbing behavior (i.e., WR and SR) of bump-type FJB is developed using Design Expert software [39][40][41]. The developed mathematical equations for the wear rate and surface roughness of bump-type FJB are as follows:…”

Section: Regression Studymentioning

confidence: 99%

Impact of Heat Treatment on the Rubbing Behavior of Bump-Type Foil Journal Bearing

Mourya,

Bhore

2024

Tribology Online

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Under low-speed or start/stop conditions, the rubbing of top foil in foil journal bearing (FJB) prompting the application of heat treatment to improve the rubbing behavior of the foil bearing. During heat treatment, various factors can influence the thermo-physical properties of foil. Therefore, the present study is carried out to analyze the impact of heat treatment variables on the rubbing behavior of FJB. To obtain it, bump-type FJBs are fabricated using SS 316 foil material with a corrugated die. Subsequently, experimental investigations of the developed bump-type FJB are conducted based on response surface methodology. The rubbing behavior of the FJB, including wear rate and surface roughness, is evaluated under various heat treatment conditions. The results indicate that both the wear rate and surface roughness of bump-type FJB decrease with increasing HT time duration. Furthermore, it is observed that the temperature distribution of the heated foil becomes more uniform with longer HT time durations. At the optimal HT variables of 500°C and 3 hours, the surface roughness and rubbing temperature of bump-type FJB are measured at 1.295 μm and 55.20°C, respectively. Additionally, the rubbing temperature of bump-type FJB is thoroughly evaluated.

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“…Impact on metal-polymer composites, finding optimal processing variables, and revealing 20 % aluminum enhances tensile strength, yield, and ductility [6]. Tribological characteristics of 3D-printed textured samples using FDM for ABS and PLA polymers [7]. Fused filament fabrication enhances mechanical and thermal properties in polymer-based composites, with isotropic thermal diffusivity and analyses of radial extrudate temperature distribution in thermoplastic filament extrusion additive manufacturing, finding a maximum 300 °C/mm gradient for local thermal conduction [8].…”

Section: Introductionmentioning

confidence: 99%

Optimizing mechanical properties of virgin and recycled PLA components using Anova and neural networks

P V R,

2024

Math. models, eng.

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The increasing demand for polymers in additive manufacturing (AM) has led to a significant increase in plastic waste, with over 300 million metric tons used in recent years. This research article explores the use of Poly Lactic Acid (PLA) as a biodegradable thermoplastic recycled material for 3D printed components, comparing its properties with virgin PLA and discussing solutions for variation and mechanical features improvement. Fused Deposition Modeling (FDM) is a widely used additive manufacturing process that allows for the creation of three-dimensional objects by depositing molten material layer by layer. This study investigates the impact of infill density, layer thickness, and raster angle for recycled 3D printing material, focusing on their dimensions and their influence on processing efficiency. This research paper aims to investigate the mechanical effects of recycled 3d printed components which are printed by using FDM with the combination of different process parameters compared with virgin PLA. From results optimal process parameters are found to enhancing quality and performance of recycled 3D printed components. Later results are compared by Analysis of Variance (ANOVA) as a statistical tool and also with ANN technique, which minimizes error deviation.

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Multiobjective optimization of tribological characteristics of 3D printed texture surfaces for ABS and PLA Polymers

Cited by 12 publications

References 54 publications

Comparative study on tribological behavior of foil journal bearings with micro pocket

Comparative study on tribological behavior of foil journal bearings with micro pocket

Impact of Heat Treatment on the Rubbing Behavior of Bump-Type Foil Journal Bearing

Optimizing mechanical properties of virgin and recycled PLA components using Anova and neural networks

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