Temat: Surface roughness - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Optimizing cutting parameters in hard turning of AISI 52100 steel using TOPSIS approach
Autorzy:: Umamaheswarrao, Ponugoti
Ranga Raju, D.
Suman, Koka Naga Sai
Ravi Sankar, B.
Powiązania:: https://bibliotekanauki.pl/articles/95287.pdf
Data publikacji:: 2019
Wydawca:: Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:: machining force
surface roughness
TOPSIS
optimization
siła skrawania
chropowatość powierzchni
optymalizacja
Opis:: In the present work optimization of cutting parameters is performed while hard turning of AISI 52100 steel with polycrystalline cubic boron nitride (PCBN) tools using Technique for Order Preference by Similarity to Ideal Solution (TOPSIS). Experiments are planned and conducted based on Center Composite Rotatable Design (CCD) of the Response Surface Method (RSM). Cutting speed, feed, depth of cut, nose radius and negative rake angle are considered as input parameters. In this study machining force (F) and surface roughness (Ra) are measured during the experiment. Analysis of variance (ANOVA) is deployed to determine the influence of process parameters. Obtained optimal parameters are speed 200 rpm, feed 0.1 mm/rev, depth of cut 0.8 mm, nose radius 1.2 mm and negative rake angle 45º.
Źródło:: Journal of Mechanical and Energy Engineering; 2019, 3, 3; 227-232
2544-0780
2544-1671
Pojawia się w:: Journal of Mechanical and Energy Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Contemporary applications of magnetoreological fluids for finishing process
Autorzy:: Sutowska, M.
Sutowski, P.
Powiązania:: https://bibliotekanauki.pl/articles/95187.pdf
Data publikacji:: 2017
Wydawca:: Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:: magnetorheological fluid
magnetorheological finishing
surface roughness
ciecz magnetoreologiczna
obróbka wykończeniowa
chropowatość powierzchni
Opis:: The article presents the current state of knowledge on the use of magnetorheological fluids for finishing processes. The paper descsribes the type of the materials and surfaces to be machined and the composition of the magnetorheological fluids used in this area. The most interesting applications were described in more detail, paying particular attention to the schematic diagram of the test stands, obtained results of experimental tests and the results of roughness measurements of the surfaces exposed to magnetically controlled fluids. The article also describes the directions of the newest experimental and simulation research on the application of magnetorheological fluids in the field.
Źródło:: Journal of Mechanical and Energy Engineering; 2017, 1, 2; 141-152
2544-0780
2544-1671
Pojawia się w:: Journal of Mechanical and Energy Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Sequential treatment process in a rotary container polishing machine with periodic workpiece location changes in working abrasives areas
Autorzy:: Juniewicz, Mateusz
Plichta, Jarosław
Powiązania:: https://bibliotekanauki.pl/articles/2201643.pdf
Data publikacji:: 2022
Wydawca:: Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:: mass finishing
active holder
stainless steel
surface roughness
obróbka wykończeniowa
uchwyt aktywny
stal nierdzewna
chropowatość powierzchni
Opis:: This paper presents the process of a 3-step machining process involving pre-treatment, smoothing and polishing, placing the workpiece in different energy levels of the working load in a rotary-cascade container smoother, by moving it towards the radial direction of the working chamber of the smoother. Studies show the ability to control the course of pre-treatment, smoothing and finishing intensity, both in terms of process parameters and treatment time. Such a structure of the machining process, it also allows you to influence the structure geometry of the machined surfaces in successive stages of machining, and consequently on the final quality. The proposed organization and structure of the process allows for the creation of a new one surface treatment strategy.
Źródło:: Journal of Mechanical and Energy Engineering; 2022, 6, 2; 1--6
2544-0780
2544-1671
Pojawia się w:: Journal of Mechanical and Energy Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Comparative analysis of turning and traverse grinding of bearing steel parts in hardened state
Autorzy:: Plichta, J.
Nadolny, K.
Wojcieszak, S.
Powiązania:: https://bibliotekanauki.pl/articles/95378.pdf
Data publikacji:: 2018
Wydawca:: Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:: turning
traverse grinding
bearing steel
surface roughness
process efficiency
toczenie
szlifowanie osiowe
stal łożyskowa
chropowatość powierzchni
efektywność procesu
Opis:: The article describes the results of experiments which were intended to compare the results of turning and traverse grinding of internal cylindrical surfaces of rings made of bearing steel (100Cr6) in hardened state (62±2HRC). During experimental investigations, particular attention was paid to the machining performance and roughness of the machined surface. The results of the research presented in this article confirm the advantage of the turning process over traverse grinding using grinding wheels with zone-diversified structure.
Źródło:: Journal of Mechanical and Energy Engineering; 2018, 2, 2; 89-94
2544-0780
2544-1671
Pojawia się w:: Journal of Mechanical and Energy Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Optimization of machining parameters during end milling of super alloys using grey based taguchi method coupled with entropy measurement technique
Autorzy:: Sreenivasulu, Reddy
Rao, Chalamalasetti Srinivasa
Powiązania:: https://bibliotekanauki.pl/articles/95277.pdf
Data publikacji:: 2020
Wydawca:: Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:: CNC end milling
inconel 718 super alloy
burr height
surface roughness
grey based Taguchi method
entropy measurement
frezowanie CNC
superstop Inconel
chropowatość powierzchni
metoda Taguchi
pomiary entropii
Opis:: High-quality products include those with better surface quality and texture, close dimensional tolerances and form accuracies at precise level, increase fatigue life and burr-free. Burr formation is one of the most common inevitable facts occurring in all material removal processes, reduces assembly and machined part quality. But, burr formation during milling is a more complex mechanism compare to remaining machining burrs and leads to numerous difficulties during the deburring process. To prevent this, one should optimize the combination of cutting parameters during machining itself. In order to build up a link between quality and productivity and to attain the same in the cost-effective way, the present work concentrate on multi objective optimization of CNC end milling process parameters. Multiple performance characteristics with respect to surface quality and performance index like assembly work have been put up, to assess an equivalent single quality index (called grey relational grade) has been optimized finally by Grey based Taguchi method. After that priority weight of individual quality and performance attributes has been estimated by entropy measurement technique on the basis of relative significance and check the feasibility of the proposed technique has been demonstrated in this context.
Źródło:: Journal of Mechanical and Energy Engineering; 2020, 4, 1; 47-56
2544-0780
2544-1671
Pojawia się w:: Journal of Mechanical and Energy Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Optimum combination of machining parameters during drilling of aluminium 7075 alloys using Grey based Taguchi approach
Autorzy:: Sreenivasulu, Reddy
Rao, Chalamalasetti Srinivasa
Powiązania:: https://bibliotekanauki.pl/articles/1819169.pdf
Data publikacji:: 2020
Wydawca:: Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:: drilling
burr size
surface roughness
roundness error
thrust force
torque
Taguchi method
grey relational analysis
wiercenie
chropowatość powierzchni
błąd okrągłości
siła odporowa
moment obrotowy
metoda Taguchi
szara analiza relacyjna
Opis:: From ancient days to till today manufacturing industries, especially making of holes on the parts during drilling process for precision assembling of parts facing problems with burr formation. Drilling operation is one of the finishing operation in the production cycle, removing of burrs during drilling process is a time consuming and non-value added process to the manufacturing sector. So reducing the size of burrs is the main aim of the present study. In the present work, optimization of burr size is considered during drilling of aluminium 7075 alloy. In this connection, experiments are conducted based on Grey based Taguchi. From Grey relational grades of responses selected optimal combination of parameters to attain multiple performance characteristics of responses with a corresponding higher grey relational grade. For identifying the most significant input parameters that influence the output responses ANOVA is conducted. Based on interaction effect plots of data means of responses from results of ANOVA, confirmation tests are conducted by choosing most significant parameters. Finally, observations reveals that feed rate, point and clearance angles are the most influential factors on burr size and also experimental results divulge that the lower the thrust force causes to decrease the burr height. The proposed approach is helpful to the budding entrepreneurs in the related areas to select optimal combination of drilling parameters to attain multiple performance characteristics of responses especially in burr size to prevent the post finishing operations up to certain extent.
Źródło:: Journal of Mechanical and Energy Engineering; 2020, 4, 3; 227--238
2544-0780
2544-1671
Pojawia się w:: Journal of Mechanical and Energy Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Regeneration of industrial cutting blades made from X39Cr13 steel used in skinning process of pleuronectidae-family flatfishes
Autorzy:: Zieliński, B.
Kapłonek, W.
Nadolny, K.
Powiązania:: https://bibliotekanauki.pl/articles/95225.pdf
Data publikacji:: 2018
Wydawca:: Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:: industrial cutting blade
wear of the cutting edge
regeneration process
CNC grinding machine
precision grinding
surface roughness analysis
ostrze tnące
zużycie krawędzi skrawającej
proces regeneracji
szlifierka CNC
szlifowanie precyzyjne
analiza chropowatości powierzchni
Opis:: One of the important and still current problems occurring in the fish processing industry is the intensive wear of the cutting surface of industrial cutting blades used to separate the fish raw material. In the paper, the proposes aproprietary solution to the above problem consisting in the regeneration of worn surfaces realized in the process of precise grinding by the use of a prototype 5-axis CNC grinding machine was presented. The obtained machining results were verified, among others on the basis of measurements of values of the cutting edges inclination angles and analysis of values of selected surface roughness parameters. The proposed solution along with the developed methodology can be an interesting alternative to typical ways of renewing the cutting ability of cutting tools in applications from the fish processing industry.
Źródło:: Journal of Mechanical and Energy Engineering; 2018, 2, 4; 277-284
2544-0780
2544-1671
Pojawia się w:: Journal of Mechanical and Energy Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Influence of Abrasive Treatment of Steel Fibers on the Effectiveness of Anchoring in Concrete
Autorzy:: Janikowska, Dorota
Powiązania:: https://bibliotekanauki.pl/articles/2174913.pdf
Data publikacji:: 2022
Wydawca:: Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:: steel fibre
pull-out test
concrete
bond characteristics
roughness
fibre surface
Opis:: The article presents an original proposal to improve the efficiency of anchoring steel fibers in fibroconcrete mixtures. The expected effect was obtained by developing the surface of the fibers by mechanical abrasive treatment with electrocorundum. The main part of the work presents the results of the conducted experimental studies. The effect of the surface treatment of the fibers was investigated through metallographic techniques, using a metallographic microscope and equipment to determine the surface roughness. On the other hand, the direct method of assessing the effectiveness of fiber anchoring in the concrete was determined using the pull-out test. The results of these studies were subjected to detailed analysis and statistical processing. The results of metallographic and pull-out tests indicate that the proposed method of treating the fibers significantly affects their anchoring efficiency in the concrete matrix. According to the author, this may be of great practical importance because the discussed method of treating the fibers can significantly improve the general properties of fibrocomposite mixtures.
Źródło:: Rocznik Ochrona Środowiska; 2022, 24; 83--96
1506-218X
Pojawia się w:: Rocznik Ochrona Środowiska
Dostawca treści:: Biblioteka Nauki

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