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    Wyświetlanie 1-14 z 14
    Tytuł:
    Effect of Surface Abrasive Treatment on the Strength of Galvanised Steel Sheet Adhesive Joints
    Autorzy:
    Miturska-Barańska, Izabela
    Rudawska, Anna Rudawska
    Powiązania:
    https://bibliotekanauki.pl/articles/2022377.pdf
    Data publikacji:
    2022
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    adhesive joints
    strength
    galvanised sheet metal
    abrasive treatment
    Opis:
    The aim of this study was to determine the effect of abrasive treatment as a method of surface preparation on the strength of adhesive joints made of galvanised steel sheet. The subject of experimental investigations were adhesive joints of samples made of galvanised steel sheet DX51, 0.7 mm thick. The surfaces of the samples were abraded with coated abrasive tools of grain sizes P120, P180, P220, P400 and P600, and then degreased with PIKKO extraction solvent. The surface properties in terms of roughness and 3D surface topography were examined using a Hommel-Etamic T8000 RC120-400. The adhesive joints were made using Epidian 53 epoxy resin adhesive composition and IDA curing agent in a 100:40 weight ratio. Samples of single-lap adhesive joints were tested for strength on a Zwick/Roell Z150 testing machine, in accordance with the PN - EN 1465:2009 standard. The tests showed that the samples mechanically processed with an abrasive tool of P220 gradation show the best strength properties. Adhesive joints, in which the surface of the joined elements was mechanically processed with an abrasive tool of P120 gradation, obtained negative results. The obtained test results were subjected to further statistical analysis. The Shapiro-Wilk test was used to assess the normality of the distribution. Then, the non-parametric Kruskal-Wallis test and the median test were applied, which showed that there were no significant differences in the results obtained between the adhesive joints whose surfaces were prepared with P220 and P400 abrasive paper, i.e. both methods of surface preparation can be considered as the most favourable among those analysed during the adhesive bonding of DX51 galvanised sheets.
    Źródło:
    Advances in Science and Technology. Research Journal; 2022, 16, 1; 75-84
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of Machining Settings and Tool Geometry on Surface Quality After Machining of Al/CFRP Sandwich Structures
    Autorzy:
    Doluk, Elżbieta
    Rudawska, Anna
    Powiązania:
    https://bibliotekanauki.pl/articles/2201775.pdf
    Data publikacji:
    2022
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    sandwich structure
    milling
    material height difference
    cutting parameters
    helix angle
    Opis:
    The paper describes the effect of cutting parameters and tool geometry on the surface quality after machining of an Al/CFRP (aluminium alloy/ Carbon Fibre Reinforced Plastics) sandwich structure. A two-layer sandwich structure made of an EN AW 2024 aluminium alloy and Carbon Fibre Reinforced Plastics (CFRP) was examined. The experiment used the process of peripheral milling. The experiment investigated the effects of cutting speed (vc), feed per blade (fz) and helix angle (λs) on surface quality as defined by differences in the height of materials. It was also analysed how the machining conditions described above affected the values of cutting force components. In the experimental stage of the study, uncoated, double-bit carbide mill cutters with working diameter Dc = 12mm and a variable helix angle (λs = 20˚, λs = 35˚, λs = 45˚) were used. The results have shown that cutting parameters and tool geometry do affect the surface quality and cutting forces after milling of the sandwich structure. The lowest material height difference was achieved when machining with the helix angle λs = 45˚, cutting speed vc = 300m/min and feed per blade fz = 0.08mm/blade. The highest material height difference occurred after machining under the following conditions: vc = 300m/min, fz = 0.08mm/min, λs = 20˚. The minimum cutting force value was obtained for cutting parameters: vc = 80m/min, fz = 0.08mm/blade during milling with the helix angle λs = 45˚. The maximum cutting force was recorded during machining with the helix angle λs = 20˚, cutting speed vc = 400m/min and feed per blade fz = 0.08 mm/blade.
    Źródło:
    Advances in Science and Technology. Research Journal; 2022, 16, 3; 22--33
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of Adhesive Compound Viscosity on the Strength Properties of 1.0503 Steel Sheets Adhesive Joints
    Autorzy:
    Miturska-Barańska, Izabela
    Rudawska, Anna
    Powiązania:
    https://bibliotekanauki.pl/articles/2180221.pdf
    Data publikacji:
    2022
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    adhesive joints
    carbon steel
    shear strength
    epoxy adhesives
    viscosity
    Opis:
    The presented study concerned the comparison of the adhesive joints strengths of 1.0503 carbon steel sheets of higher quality, which were made using adhesive compounds characterized by different viscosity index of the components. Three types of commercial epoxy resins were used: Epidian 5, Epidian 53 and Epidian 57, as well as two types of curing agents: polyamide (PAC) and amine (Z-1). The surfaces of the test specimens were subjected to a pre-treatment operation in the process of a mechanical machining with an abrasive coated tool of P320 gradation. The surface roughness measurements were carried out as a control. The single-lap adhesive joints were the subject of the strength testing. The strength tests carried out on a Zwick/Roell Z150 testing machine concerned the comparison of the strength of the adhesive joints loaded in shear. Statistical analysis was performed on the results obtained. It was observed, among others, that the adhesive joints prepared with the epoxy adhesive compounds containing the polyamide curing agent showed much higher the shear strength than the adhesive joints made with the epoxy adhesive compounds containing the amine curing agent. Moreover, the use of the polyamide curing agent in the adhesive compounds with the epoxy resins resulted in formation of a more elastic adhesive layer, for which higher elongation was observed than in the case of the epoxy compound with the amine curing agent.
    Źródło:
    Advances in Science and Technology. Research Journal; 2022, 16, 2; 196-205
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Influence of Technological Factors on the Strength of Adhesive Joints of Steel Sheets
    Autorzy:
    Doluk, Elżbieta
    Rudawska, Anna
    Brunella, Valentina
    Powiązania:
    https://bibliotekanauki.pl/articles/102066.pdf
    Data publikacji:
    2020
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    adhesive joint
    shear strength
    surface roughness
    połączenie klejowe
    wytrzymałość na ścinanie
    chropowatość powierzchni
    Opis:
    The paper evaluates the effect of the surface treatment on the strength of the single‑lap adhesive joints made of the C45 steel. The samples were joined using an adhesive composition consisting of Epidian 57 epoxy resin and PAC curing agent. The study also used Greinplast mosaic plaster with a grain size of 1.0–1.6 mm as coating. The experiment was carried out for 3 variants of joints: sheet/sheet, sheet+plaster/sheet+plaster, sheet/sheet+plaster. Each variant was divided into 3 methods of surface treatment. The strength tests were carried out on the Zwick/Roell Z150 testing machine. The roughness parameters of the surface’s samples were measured using a HOMMEL TESTER T1000 profilometer.
    Źródło:
    Advances in Science and Technology. Research Journal; 2020, 14, 1; 107-115
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Industrial usage of hydrodynamic cavitation device
    Autorzy:
    Vitenko, Tatiana
    Droździel, Paweł
    Rudawska, Anna
    Powiązania:
    https://bibliotekanauki.pl/articles/102367.pdf
    Data publikacji:
    2018
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    hydrodynamic cavitationdevice
    mass transfer processes
    cavitation bubbles
    system solid phase - liquid
    kawitacja hydrodynamiczna
    proces przenoszenia masy
    pęcherzyk kawitacyjny
    układ faza stała-ciecz
    Opis:
    In the paper the results of research on the use of cavitation effects in certain technologiesare presented. Intensification of mass transfer processes in the system ‘solid phase - liquid’ is reviewed taking into account solid phase cavitation crashing, turbulization of boundary diffusion layer of fluid by cavitation bubbles, the emergence of non-stationary aspects of mass transfer, changes in physical and chemical properties of the liquid phase. Prospects of practical use of cavitation equipment in industryare also described.
    Źródło:
    Advances in Science and Technology. Research Journal; 2018, 12, 3; 158-167
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Strength of Assembly Butt Joints of Plastic Pipes
    Autorzy:
    Miturska, Izabela
    Rudawska, Anna
    Brunella, Valentina
    Powiązania:
    https://bibliotekanauki.pl/articles/102688.pdf
    Data publikacji:
    2020
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    adhesive
    welding
    sleeve joints
    permanent joint
    klej
    spawanie
    połączenia tulejowe
    połączenia trwałe
    Opis:
    The aim of the study was to compare the welded and adhesive joints made of polypropylene pipes. The pipes were butt jointed. Two pipe diameters were used: ø20 mm and ø25 mm. The welded joints were made by hot gas welding, while the adhesive joints were made by two epoxy adhesive compositions. The base for both compositions was Epidian 6 epoxy resin, which was mixed with IDA and TFF curing agents in the recommended quantitative ratios. The experimental tests consisted in determination and comparison of the strength properties of the made joints; therefore, the analyzed joints were subjected to the destructive strength tests, which determined their tensile strength in accordance with the ISO 527–1 standard. On the basis of the obtained results, it was observed that welded joints obtained the highest average strength. The lowest strength was characteristic for the adhesive joints made with Epidian 6/TFF/100:27 adhesive. The obtained results were subjected to a statistical analysis, which showed that the strength of ø20 mm diameter pipe joints did not differ significantly from the strength of ø25 mm diameter pipe joints, comparing the results for each type of joint with the assumed level of confidence α = 0.05.
    Źródło:
    Advances in Science and Technology. Research Journal; 2020, 14, 1; 10-17
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Strength of Epoxy-Bonded Aluminium Alloy Joints After Sandblasting
    Autorzy:
    Rudawska, Anna
    Wahab, Magd Abdel
    Müller, Miroslav
    Powiązania:
    https://bibliotekanauki.pl/articles/2180222.pdf
    Data publikacji:
    2022
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    sandblasting
    aluminium alloy
    epoxy adhesive
    adhesive joints strength
    surface roughness
    statistical analysis
    Opis:
    The purpose of this article is to investigate the effect of sandblasting surface treatment, before the bonding process, on the strength of the adhesive joints of the three types of aluminium alloy sheets. Three values of pressure were used during the sandblasting process, i.e. 0.41 MPa, 0.51 MPa and 0.56 MPa. After mechanical treatment, the samples of aluminium alloys sheets were degreased three times with acetone by immersion. The elements were bonded with single-lap joints using two components epoxy adhesive. After the curing process, the shear strength tests of the aluminium alloy adhesive joints were conducted, according to the DIN EN 1465 standard. The surface topography of all samples was measured, and the most important surface roughness parameter and its waviness were determined. Based on the experimental results, it was noticed that, among others, while using the same pressure value during sandblasting of different aluminium alloys, the roughness parameters Ra and Rz of the obtained surfaces differed depending on the type of alloy. It is also to notice that more than two times strength of the joints was obtained by those made of the aluminium alloy sheet, which was subjected to heat treatment.
    Źródło:
    Advances in Science and Technology. Research Journal; 2022, 16, 2; 262--279
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Substantiation of the Optimal Parameters for Dough Pinning-Out Rollers
    Autorzy:
    Vitenko, Tetiana
    Stadnik, Igor
    Droździel, Paweł
    Rudawska, Anna
    Powiązania:
    https://bibliotekanauki.pl/articles/101868.pdf
    Data publikacji:
    2020
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    rolls shape
    pouring process
    rheological parameters
    kształt rolek
    proces zalewania
    parametry reologiczne
    Opis:
    The article defines the rather complex and unpredictable movement of the dough in the gap between the working rolls and suggests the calculation for the optimal parameters for the rolls shape (particularly the parameters and their effect on the dough). The functional dependences of the permissible diameter and the gap between rotating rollers were substantiated. The block diagram of the geometric bounding parameters of the gradient field of the viscous fluid flow was proposed and the equation on the basic constructive parameters (h, r) affecting the pouring process efficiency was presented. The analysis of the experimental results revealed that the main features of the machine provide the necessary stable shape products and good rheological parameters of these products. The rheological testing indicators allow for a rational approach to the decision to operate a rolling process. At the same time, they improve the quality control methods and have an influence on the design parameters of rollers and modes of chambers. The proposed method not only allows obtaining a predetermined pressure, but also enables defining the optimal shape of the gap, wherein the pressure gradient is constant.
    Źródło:
    Advances in Science and Technology. Research Journal; 2020, 14, 1; 32-41
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A choice of the optimum cutting ranges for cutting nozzles A-SD for selection of metallurgical material
    Autorzy:
    Stančeková, Dana
    Rudawska, Anna
    Kulla, Albert
    Petrů, Jana
    Holubják, Jozef
    Powiązania:
    https://bibliotekanauki.pl/articles/102340.pdf
    Data publikacji:
    2018
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    cutting nozzles
    data from catalogues
    cutting parameters
    final results
    dysze tnące
    dane z katalogów
    parametry cięcia
    ostateczne rezultaty
    Opis:
    On the market there are plenty of machines for cutting of steel via a mixture of oxygen and flammable gases. Various manufacturers provide several types of torches, cutting nozzles and other equipment in their product range. Cutting nozzles are a component that significantly affects quality of cutting based in set parameters. However, data from catalogues and manuals by manufacturers on cutting parameters of nozzles are rarely in use in real conditions. That is why optimum cutting conditions for cutting via nozzles A-SD made by RHONA were tested and the final results were compared with those in the catalogue for a proper use in practice.
    Źródło:
    Advances in Science and Technology. Research Journal; 2018, 12, 3; 106-113
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Selected strength aspects of adhesive lap joints and butt welded joints of various structural materials
    Autorzy:
    Rudawska, Anna
    Niedziałkowski, Paweł
    Miturska, Izabela
    Szabelski, Jakub
    Grzesiczak, Dominik
    Powiązania:
    https://bibliotekanauki.pl/articles/102735.pdf
    Data publikacji:
    2018
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    adhesive joints
    welded joints
    tensile strength
    MIG/MAG
    failure load
    połączenia klejowe
    połączenia spawane
    wytrzymałość na rozciąganie
    Opis:
    The present paper evaluates the effect of joining method on the strength of joint assemblies of selected structural materials: DX51+Z275 galvanised steel, OH18N9 stainless steel and DC01 low carbon steel. The objects of the study are: the lap adhesive joint and the butt welded joint with continuous and spot weld. Welded joints were produced latter by means of one of the two welding methods, MIG or MAG. The choice of the welding method depended on the type substrate material. Welding was conducted at the following constant technological parameters: strength of current, electrode deposition rate, filler metal diameter, type and flow rate of shielding gas. The adhesive joint was bonded with Epidian 53/Z1/100:10 epoxy adhesive. The substrates were pre-treated in a three-stage surface preparation process involving: mechanical treatment with P60 and P320 abrasive tools and degreasing with Loctite 7063 degreasing agent. The tensile strength tests, conducted under the study, provided strength characteristics of the tested joint assemblies, indicating differences in the values of strength that depended on the applied joining method or, in the case of welded joints, the structure of the seam.
    Źródło:
    Advances in Science and Technology. Research Journal; 2018, 12, 1; 135-141
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Strength of the Adhesive Joints of the Medium-Density Fireboards and Particle Boards with the PVC Film
    Autorzy:
    Rudawska, Anna
    Stančeková, Dana
    Müller, Mirosław
    Vitenko, Tetiana
    Iasnii, Vlodymyr
    Powiązania:
    https://bibliotekanauki.pl/articles/102951.pdf
    Data publikacji:
    2020
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    adhesive joints
    strength
    MDF
    particleboard
    PVC film
    połączenia klejone
    wytrzymałość
    płyta wiórowa
    folia PVC
    Opis:
    The aim of the present article was to analyse the adhesive joints of different types of the furniture boards used for the furniture production. The present article included a comparative analysis of the adhesive joints of the particle board and the medium-density fireboard (MDF) pressed with the following types of film: A 0.3 mm thick PVC film and a 0.8 mm thick acrylic film, made with use of a single-component reactive hot-melt adhesive based on the PUR 706.2 ME polyurethane. It was observed that, among others, the adhesive joints made of the particle board with a pressed 0.3 mm thick PVC film and the adhesive’s basis weight of 24 g/m2 is characterised by better strength properties than the adhesive joints of the particle board with the adhesive’s basis weight of 48 g/m2.
    Źródło:
    Advances in Science and Technology. Research Journal; 2020, 14, 1; 58-68
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Solutions of the Roller Conveyor in Terms of Logistics Provider
    Autorzy:
    Madleňáková, Lucia
    Matúšková, Mária
    Madleňák, Radovan
    Rudawska, Anna
    Rybicka, Iwona
    Powiązania:
    https://bibliotekanauki.pl/articles/957997.pdf
    Data publikacji:
    2018
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    conveyor
    belt
    sorting
    transporter
    pas
    sortowanie
    Opis:
    Implementation of modern handling facilities contributes to the quality performance of each business subject. Nowadays, mechanization and automation of processes associated with the handling of shipments finds an important place especially under the conditions of the postal and logistics sector, which is growing due to ecommerce. The method of allocating large mechanization and automation, the performance and other characteristics significantly influence the realization of processing shipments in relation to the quality of service but also labour intensity and human performance. The paper deals with the issue of the appropriate location of the conveyor within the space available depot, as well as calculation of performance and technical parameters and multi-criteria evaluation for an appropriate choice of the conveyor. Such factors as energy performance, noise, safety at work, location and so on, were considered.
    Źródło:
    Advances in Science and Technology. Research Journal; 2018, 12, 4; 1-9
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Mechanical properties of hand-making polyester composites
    Autorzy:
    Rudawska, Anna
    Malczarski, Mateusz
    Stančeková, Dana
    Wahab, Magd Abdel
    Schindlerová, Vladimira
    Powiązania:
    https://bibliotekanauki.pl/articles/102140.pdf
    Data publikacji:
    2018
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    polymer composites
    plies orientation
    strength
    kompozyty polimerowe
    orientacja warstwowa
    siła
    Opis:
    The aim of this paper is to determine the effect of arrangement of fibreglass fabric plies in a polymer composite on a strength. Based on the experimental results, the real effect of plies arrangement and their most favourable configuration with respect to strength is determined. The experiments were performed on 4 types of handmade composites which had different fibre orientations and thicknesses. The first three of the composites had three plies of fabric. The plies arrangement in Composite I was unchanged, in Composite II the central ply had the 45o orientation, while in Composite III the outside ply (tangential to the adhesive layer) was oriented at 45o. In contrast, Composite IV consisted of five plies with unchanged arrangement. Composite plates were first cut into smaller specimens and then after stabilizing, the composite specimens were subjected to strength tests. The highest tensile strength and elongation are obtained for Composite IV, which was the higher the thickness from the tested composite samples, but for this composite the tensile modulus was lowest value. Composite II has the lowest values of strength parameters among the tested composites, which contain three plies and central ply has the 45o orientation.
    Źródło:
    Advances in Science and Technology. Research Journal; 2018, 12, 2; 112-120
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The influence of selected factors on the strenght of wood adhesive joints
    Autorzy:
    Rudawska, Anna
    Maziarz, Marek
    Šajgalík, Michał
    Valášek, Petr
    Zlamal, Tomas
    Iasnii, Volodymyr
    Powiązania:
    https://bibliotekanauki.pl/articles/102152.pdf
    Data publikacji:
    2018
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    adhesive joint
    strength
    pine wood
    oak wood
    połączenie klejowe
    siła
    drewno sosnowe
    drewno dębowe
    Opis:
    This paper examines the effect of selected factors on the wood bonded joint strength. The structural factor under scrutiny was the geometry of the surface area; however, other major dimensions of adherends were compared as well. The tests were performed on 6 joint types: butt, v-shaped, interlocking, scarf, tongue & groove, and single lap joints, which were formed on two types of substrate materials – pine and oak wood, and adhesively bonded. The joints were bonded with Prefere 6312 wood adhesive and Loctite 3430 two-component epoxy adhesive. Strength testing of the joints was performed on Zwick/Roell Z150 material testing machine, according to DIN EN 1465 standard. The results obtained from the tests indicate that bonded joints of oak wood exhibit higher strength properties than those of pine wood adherends, which was confirmed in nearly all strength tests.
    Źródło:
    Advances in Science and Technology. Research Journal; 2018, 12, 3; 47-54
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-14 z 14

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