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Surface Quality Prediction in Aluminum Extrusion
Key Engineering Materials, 2011The surface quality of aluminium extrusion products can be hampered by undesired surface features like die lines and pickups. In particular the presence of pickups is considered as undesirable. Surface pickups appear as intermittent torn marks on the aluminium extrusion products, often terminated with a protruding lump rising above the surface up to ...
Rooij, M.B. de +3 more
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Evaluating surface quality by luminance and surface roughness
Precision Engineering, 2022Abstract In computer numerical control (CNC) machining, ensuring the production of high-quality of machined surfaces is important alongside factors such as high production speed and precision. However, existing surface quality evaluation methods are inconclusive, being largely based on photographic or human visual inspection. Therefore, a method must
Toshiaki Otsuki +2 more
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Surface mesh quality evaluation
International Journal for Numerical Methods in Engineering, 1999The aim of the paper is to present a method suitable to analyse if a given surface triangulation satisfies the requirements of a prescribed size map. The authors' method evaluates the size quality as well as the shape quality of constrained surface meshes.
Frey, Pascal J., Borouchaki, Houman
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Quality Improvement of Surface Triangulations
2006This paper presents a new procedure to improve the quality of triangular meshes defined on surfaces. The improvement is obtained by an iterative process in which each node of the mesh is moved to a new position that minimizes certain objective function.
Montenegro, R. +3 more
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Surface Water Quality Assessment by Environmetric Methods
Environmental Monitoring and Assessment, 2006This environmetric study deals with the interpretation of river water monitoring data from the basin of the Buyuk Menderes River and its tributaries in Turkey. Eleven variables were measured to estimate water quality at 17 sampling sites. Factor analysis was applied to explain the correlations between the observations in terms of underlying factors ...
Boyacioglu, Huelya, Boyacioglu, Hayal
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Surface Water Quality and Analysis
2021The fundamental of water quality management and analysis is to adopt several monitoring actions to save water bodies and protect users. Evaluation of physiochemical and biological parameters of surface water is an important aspect for water quality model formation and adopted suitable management actions.
Hamidi Abdul Aziz +2 more
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High‐quality surface remeshing using harmonic maps
International Journal for Numerical Methods in Engineering, 2010AbstractIn this paper, we present an efficient and robust technique for surface remeshing based on harmonic maps. We show how to ensure a one‐to‐one mapping for the discrete harmonic map and introduce a cubic representation of the geometry based on curved PN triangles.
Remacle, J.-F. +3 more
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Evaluation of WEDM Surface Quality
Advanced Materials Research, 2010The formation of WEDM surface is a complicated process. There are many factors which make machined surface topography have the characteristics of complex and irregular, and impact using performance of parts. The work investigated microscopic features of the WEDM surface topography based on power spectral density and fractal theory, and proposed power ...
Lei Geng, Hua Yan Zhong
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Quality surface finishing filtration
Filtration + Separation, 2018Surface finish quality is largely dependent on the cleanliness of the lubricating oil or coolant used, therefore identifying the best type of filtration is important. This article discusses the advantages and potential pitfalls of a range of filters and filtration methods.
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Surface roughening, surface melting and crystal quality
Faraday Discussions, 1993The modelling of crystal surfaces, both in equilibrium and during growth, is now at a stage where the relation between surface structure and crystal quality are accessible for future studies. The classical point of view is that the roughening transition marks the transition from step growth to rough growth with qualitative changes in the growth rate ...
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