Temat: surface roughness - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: A comparison between profile and areal surface roughness parameters
Autorzy:: He, Baofeng
Ding, Siyuan
Shi, Zhaoyao
Tematy:: profile surface roughness
areal surface roughness
filtration techniques
evaluation parameters; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/1849053.pdf Link otwiera się w nowym oknie
Opis:: Surface roughness has an important influence on the service performance and life of parts. Areal surface roughness has the advantage of accurately and comprehensively characterizing surface microtopography. Understanding the relationship and distinction between profile and areal surface roughness is conducive to deepening the study of areal surface roughness and improving its application. In this paper, the concepts, development, and applications of surface roughness in the profile and the areal are summarized from the aspect of evaluation parameters. The relationships and differences between surface roughness in the profile and the areal are analyzed for each aspect, and future development trends are identified.
Dostawca treści:: Biblioteka Nauki

Artykuł

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Skocz do pozycji: 2.

Tytuł:: A comparison between profile and areal surface roughness parameters
Autorzy:: He, Baofeng
Ding, Siyuan
Shi, Zhaoyao
Tematy:: profile surface roughness
areal surface roughness
filtration techniques
evaluation parameters; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/1849106.pdf Link otwiera się w nowym oknie
Opis:: Surface roughness has an important influence on the service performance and life of parts. Areal surface roughness has the advantage of accurately and comprehensively characterizing surface microtopography. Understanding the relationship and distinction between profile and areal surface roughness is conducive to deepening the study of areal surface roughness and improving its application. In this paper, the concepts, development, and applications of surface roughness in the profile and the areal are summarized from the aspect of evaluation parameters. The relationships and differences between surface roughness in the profile and the areal are analyzed for each aspect, and future development trends are identified.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 3.

Tytuł:: A comparison between profile and areal surface roughness parameters
Autorzy:: He, Baofeng
Ding, Siyuan
Shi, Zhaoyao
Tematy:: profile surface roughness
areal surface roughness
filtration techniques
evaluation parameters; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/1849009.pdf Link otwiera się w nowym oknie
Opis:: Surface roughness has an important influence on the service performance and life of parts. Areal surface roughness has the advantage of accurately and comprehensively characterizing surface microtopography. Understanding the relationship and distinction between profile and areal surface roughness is conducive to deepening the study of areal surface roughness and improving its application. In this paper, the concepts, development, and applications of surface roughness in the profile and the areal are summarized from the aspect of evaluation parameters. The relationships and differences between surface roughness in the profile and the areal are analyzed for each aspect, and future development trends are identified.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Effects of soil surface roughness on soil processes and remote sensing data interpretation and its measuring techniques - a review
Autorzy:: Herodowicz, Karolina
Piekarczyk, Jan
Tematy:: soil surface roughness, tillage treatments, soil processes, remote sensing, soil surface roughness measuring techniques; Pokaż więcej
Wydawca:: Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Powiązania:: https://bibliotekanauki.pl/articles/763024.pdf Link otwiera się w nowym oknie
Opis:: Surface roughness is a very important physical feature of soil, affecting various soil processes and accuracy of remote sensing data interpretation. Thus, there is a need to describe it quantitatively. The main aim of the paper was to show needs and benefits of collecting quantitative information about soil surface roughness which is the most relevant parameter used as an index to predict water and wind erosion. Surface roughness can reduce soil erosion and soil losses even by up to 31%. Thereby, it increases the development of fauna and flora and improves the structure of soil and its biological quality. In the first section of the paper there are presented definitions of soil roughness proposed by different authors. The next section explains how various factors influence soil surface roughness. Then, the categorization of soil surface roughness discussed in literature is presented. The next part of the paper includes information about a role of soil roughness in agricultural, soil science and a hydrology research. Moreover, soil surface roughness plays an important role in a remote sensing of soils. The knowledge of quantitative soil surface roughness allows more accurate interpretation of the soil properties from remote sensing data, because this soil feature can decrease soil spectra even over 70% and makes their analysis difficult. In addition, deepening knowledge about soil roughness will allow more precise conclusions about the amount of reflected shortwave solar radiation indirectly shaping the Earth’s climate. In the final section, the techniques for measuring and indices for describing soil roughness are shown. However, the authors prefer a photogrammetry technique for collecting these data, because it is quick and easy to use, ensuring high resolution and accuracy of data (about 1 mm) and the image processing is currently simplifid as software to process is absolutely affordable.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: The evaluation of the influence of head implant surface roughness on the wear of UHMWPE cup
Autorzy:: Sedlacek, R.
Tuzarova, Z.
Tematy:: implants
head surface roughness
UHMWPE; Pokaż więcej
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Powiązania:: https://bibliotekanauki.pl/articles/286109.pdf Link otwiera się w nowym oknie
Opis:: The aim of this study was the evaluation of the influence of head surface roughness on the wear of the acetabular component of implant. The experiments were executed for the combination of UHMWPE (Ultra High Molecular Weight Polyethylene) implant cup and metal head of implant with several different surface roughnesses. Testing method was based on Pin-on-Disc principle. Finally the recommendation for head surface roughness was established. The special experiments were carried out in accredited “Mechanical Testing Laboratory” (quality system ISO 17025) in collaboration with the Academy of Sciences of the Czech Republic and company BEZNOSKA Corporation - developing and producing bone-substitute biomaterials and implants.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Effect of Ceramic Brush Treatment on the Surface Quality and Edge Condition of Aluminium Alloy after Abrasive Waterjet Machining
Autorzy:: Matuszak, Jakub
Tematy:: surface roughness
AWJM
brushing
deburring; Pokaż więcej
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Powiązania:: https://bibliotekanauki.pl/articles/2023313.pdf Link otwiera się w nowym oknie
Opis:: Material separation is one of the basic technological operations. Abrasive water jet machining (AWJM) is a universal cutting method; it is used for almost all structural materials, ranging from easy-to-cut materials such as aluminium alloys to materials that are difficult-to-cut after thermal treatment. In terms of assembly accuracy and product safety, surface quality and edge condition after cutting are of vital importance. Machining with ceramic brushes mounted on the machining centre is one of the methods for improving surface quality and removing burrs after AWJM. The aim of this study is to analyse the influence of machining conditions with ceramic brushes on the surface quality and effectiveness of deburring after abrasive water jet machining of EN AW-7075 aluminium alloy. For all tested brushing treatment conditions lower roughness parameters were obtained compared to the base surface after AWJM. A positive deburring effect was achieved for all fibre types after one brush pass. For the brush with the lowest stiffness fibres a rounded edge was obtained, while for the fibres with higher stiffness – the edges were chamfered.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Simulation of Superfinished Surface Formation
Autorzy:: Görög, Augustín
Tematy:: model
simulation
surface roughness
superfinishing; Pokaż więcej
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Powiązania:: https://bibliotekanauki.pl/articles/2023949.pdf Link otwiera się w nowym oknie
Opis:: The article deals with the simulation of single-oscillating grooves superfinishing. A model of the superfinishing tool was created according to the input information about the tool and the superfinishing process. Using this tool, a simulation of the cutting process was performed. The input parameters for the simulation were the cutting conditions, which determined the paths of tools individual grains (process kinematics). The simulation is realized by gradual removal of the workpiece material by individual grains of the tool. The result of the simulation is the profile of the superfinished surface at an evaluation length of 1.25 mm. It is possible to determine the surface roughness parameters from the profile. Creating and displaying multiple profiles side by side creates a graphical model of the superfinished surface. The simulation can be used for numerical simulation experiments, where both material and energy are saved. The article presents one such experiment together with the results – the surface roughness was influenced by individual factors. The simulation results (surface roughness parameters and surface appearance) were compared with the real superfinished surface on the outer ring of the bearing. This surface was manufactured under mass production conditions. The comparison confirmed that a simulation is a suitable tool for research of abrasive machining methods. At the end of the article is a discussion about a possible improvement of the simulation - considering 3D grains of the tool.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: The experimental investigation of surface roughness after dry turning of steel S235
Autorzy:: Molenda, Justyna
Tematy:: dry turning
turning parameters
turning results
surface roughness
arithmetic average surface roughness value; Pokaż więcej
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Powiązania:: https://bibliotekanauki.pl/articles/245799.pdf Link otwiera się w nowym oknie
Opis:: Nowadays lot of scientific work inspired by industry companies was done with the aim to avoid the use of cutting fluids in machining operations. The reasons were ecological and human health problems caused by the cutting fluid. The most logical solution, which can be taken to eliminate all of the problems associated with the use of cooling lubricant, is dry machining. In most cases, however, a machining operation without lubricant finds acceptance only when it is possible to guarantee that the part quality and machining times achieved in wet machining are equalled or surpassed. Surface finish has become an important indicator of quality and precision in manufacturing processes and it is considered as one of the most important parameter in industry. Today the quality of surface finish is a significant requirement for many workpieces. Thus, the choice of optimized cutting parameters is very important for controlling the required surface quality. In the present study, the influence of different machining parameters on surface roughness has been analysed. Experiments were conducted for turning, as it is the most frequently used machining process in machine industry. All these parameters have been studied in terms of depth of cut (ap), feed rate (f) and cutting speed (vc). As workpiece, material steel S235 has been selected. This work presents results of research done during turning realised on conventional lathe CDS 6250 BX-1000 with severe parameters. These demonstrate the necessity of further, more detailed research on turning process results.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Influence of grinding conditions on the topographic characteristic of machined surfaces
Autorzy:: Żak, K.
Tematy:: surface texture
surface roughness
hard machining
grinding; Pokaż więcej
Wydawca:: Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Powiązania:: https://bibliotekanauki.pl/articles/100111.pdf Link otwiera się w nowym oknie
Opis:: This paper compares the ability of grinding processes to enhance functional properties of the surface textures produced. The main objective of such a comparison is to facilitate the decision about precision grinding operations. The experimental study performed includes two grinding operations using electro-corundum Al2O3 and CBN wheels. For this purpose, the topographic features of ground surfaces with the Sa roughness parameter of about 0.2?m were compared. Apart from the set of 3D roughness parameters, the frequency, fractal, wavelet and motif characteristics were analyzed.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Optimization of cutting parameters on surface roughness and productivity when milling wood materials
Autorzy:: Loc, Nguyen Huu
Hung, Trinh Quoc
Tematy:: surface roughness
response surface
milling method
optimization; Pokaż więcej
Wydawca:: Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Powiązania:: https://bibliotekanauki.pl/articles/2052204.pdf Link otwiera się w nowym oknie
Opis:: The quality of the machined surface is one of the most important criteria when products are processed. For different materials, there are differentially fitting processing technologies and cutting modes to ensure that the parts have surface roughness in the allowed value range. In this paper, the research on surface roughness of machining tropical wood by milling method is presented. It is necessary to establish and solve the optimal problems with such aims as the highest surface quality, minimum cutting power and the highest productivity in the optimal cutting mode. Using a great amount of experimental planning and many constrained nonlinear optimization problem solving methods, the authors built a process and solved the problem to determine the optimal cutting parameters such as feed per tooth Sz, tool tip radius ρ, depth of cut h, etc. that satisfy the above object. Research object is tropical wood chukrasia and this is the database to design woodworking machines by milling method and choose a reasonable working mode when processing on CNC machines.
Dostawca treści:: Biblioteka Nauki

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