Optimising Surface Roughness and Density in Titanium Fabrication via Laser Powder Bed Fusion

Micromachines, Journal Year: 2023, Volume and Issue: 14(8), P. 1642 - 1642

Published: Aug. 20, 2023

The Ti6Al4V alloy has many advantages, such as being lightweight, formal, and resistant to corrosion. This makes it highly desirable for various applications, especially in the aerospace industry. Laser Powder Bed Fusion (LPBF) is a technique that allows production of detailed unique parts with great flexibility design. However, there are challenges when comes achieving high-quality surfaces porosity formation material, which limits wider use LPBF. To tackle these challenges, this study uses statistical techniques called Design Experiments (DoE) Analysis Variance (ANOVA) investigate optimise process parameters LPBF making components improved density surface finish. examined laser power, scan speed, hatch space. optimisation results show using specific settings, like power 175 W, speed 1914 mm/s, space 53 µm, produces high relative 99.54% low top side roughness 2.6 µm 4.3 respectively. promising outcome demonstrates practicality optimising other metal materials wide range thereby overcoming existing limitations further expanding potential while minimising inherent issues.

Language: Английский

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Measuring Procedures for Evaluating the Surface Roughness of Machined Parts

Applied Sciences, Journal Year: 2023, Volume and Issue: 13(16), P. 9385 - 9385

Published: Aug. 18, 2023

This article deals with the problems that arise during evaluation of surface components, which can have a fundamental impact on functionality and service life component as well entire product. A fast method for estimating condition maximum error tester used assessing roughness components was proposed. Using secondary standard, uniform distribution law measured data experimentally identified suitable model, according to it is then possible determine coverage factor determining measurement uncertainty. The design methodology Ra determination critical when selecting optimal settings conditions parameters various types treatment technologies. mainly due effect selection speed, setting cut-off filter quantity Ra. Etalon samples realized by different technologies were experimental verification these phenomena. Large sets measurements carried out selected from each technology, and, accordingly, proposed number investigated component, represents an important achieving results minimal uncertainties at low financial costs.

Language: Английский

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Beyond the spark: the impact of tool electrode materials, polarities, and pulse distribution on machined surface texture in the electrical discharge machining of Inconel 718 superalloy

The International Journal of Advanced Manufacturing Technology, Journal Year: 2024, Volume and Issue: 133(5-6), P. 2951 - 2965

Published: June 12, 2024

Language: Английский

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Orientation of Linear Liquid Alkane on Solid Surface of Face Centered Cubic Lattice of (100), (110) and (111)

Journal of Advanced Research in Applied Mechanics, Journal Year: 2024, Volume and Issue: 124(1), P. 152 - 162

Published: Aug. 30, 2024

Solid-liquid (S-L) interfaces are found in numerous engineering applications, such as lubrication and coating systems well thermal interface materials. Understanding the interactions between is crucial for optimizing various applications. The main objective of this study to provide insight regarding liquid adsorption on solid surfaces using non-equilibrium molecular dynamics simulations. To achieve goal, a confined will be modeled match real state contact constant temperature baseline. results highlight significant relationship peak height values layer, density profile, radius gyration. Specifically, at S-L crystal plane (110) 784.756 kg/m3, followed by (100) 801.786 finally highest (111), 966.940 kg/m3. Whereas gyration planes (111) approximately 7.45 × 10-21 m2, but it less measures 7.06 m2. Conclusion, layer near solid-liquid significantly influenced solid's density. Higher higher interfaces. number layers does not affect liquids.

Language: Английский

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Analysis of Surface Topography Changes during Friction Testing in Cold Metal Forming of DC03 Steel Samples

Coatings, Journal Year: 2023, Volume and Issue: 13(10), P. 1738 - 1738

Published: Oct. 7, 2023

Predicting changes in the surface roughness caused by friction allows quality of product and suitability for final treatments varnishing or painting to be assessed. The results DC03 steel sheets after testing are presented this paper. Strip drawing tests with a flat die forced oil pressure lubrication were carried out. experiments conducted under various contact pressures lubricant pressures, was out using oils intended deep-drawing operations. Multilayer perceptrons (MLPs) used find relationships between process parameters other (Sa, Ssk Sku). following statistical measures force as inputs MLPs: average value force, standard deviation, kurtosis skewness. Many analyses order best network. It found that viscosity most significantly affected parameter, Sa, sheet metal process. Increasing reduced parameter (Sa). In contrast, skewness (Ssk) increased increasing pressure. (Sku)

Language: Английский

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