Manufacturing Technology Journal, 2022 (vol. 22), issue 6
Technological Modernity Management in Anti-Corrosion Protection Processes
Renata Stasiak-Betlejewska
Manufacturing Technology 2022, 22(6):645-654 | DOI: 10.21062/mft.2022.090 
The article presents results of the use ABC method applied to technological machines modernity level assessment in anti-corrosion protection of steel structures. Research findings enables identifying and analysis of the technological modernity level of machines used in the anti-corrosion protection process that is crucial for the final quality of the process and product manufactured in the steel construction production. The paper proves effectiveness of using ABC method of the machines modernity level as-sessment in the analysis and improvement of the steel construction corrosion ensuring process.
Processing of Deep-sea Nodules by Silicothermic Reduction
Klára Borkovcová, Pavel Novák, Eliška Chmelíková
Manufacturing Technology 2022, 22(6):655-659 | DOI: 10.21062/mft.2022.080
Deep-sea nodules are ores formed on the sea floor at depths of 3000 to 6000 m as a result of sedimen-tation. They range in size from 1 cm to 15 cm and contain mainly manganese and iron and other ele-ments that are collected from the nodules by complex pyrometallurgical and hydrometallurgical pro-cesses. These other elements of interest are bound in the nodules mainly in the form of manganese and iron oxides. In order to achieve a high yield of metals bound in nodules in the form of oxides, it is necessary to disintegrate this arrangement in the lattice. This can be achieved by exposing the deep-sea nodules to a reducing condition. This paper deals...
Tools for Advanced Control Processes in Plastic Injection Moulding Technology
Eliška Cézová
Manufacturing Technology 2022, 22(6):660-668 | DOI: 10.21062/mft.2022.077
This paper describes some tools usable for quality control in plastic injection moulding. The introductory part presents tools for quality management, the use of which is demonstrated in the next part using a practical example. The selection of suitable methods was based on proven methods for quality management. They were selected to work in synergy. The author's contribution is the modification of the PDCAI method, which was enriched by another step, namely, innovation. The last part of the article presents is a demonstration of FMEA, Ishikawa diagram, and Pareto diagram.
Reverse Engineering and Rapid Prototyping in the Process of Developing Prototypes of Automotive Parts
Michal Fabian, Róbert Huňady, František Kupec
Manufacturing Technology 2022, 22(6):669-678 | DOI: 10.21062/mft.2022.084
The presented article deals with the application of Reverse Engineering and Rapid Prototyp-ing processes in the development process in the automotive industry. In our case, we will focus on the design of the exterior rear view mirror. We obtained the information about the shape and as well as the data used to model the part in a virtual CAD computer environment by scanning it with a Leica laser scanner. The obtained point cloud was imported into CATIA V5 software, which is often used in the automotive industry. In the CATIA software modules, section curves were translated into cloud points. Based on these curves, free shaped surfaces of the mirror...
Evaluation of the Effect of Machining Technologies on the Surface Texture Analysis of Ertacetal C Polymer
Lucie Hrbackova, Josef Sedlak, Felicita Chromjakova, Lucie Macurova, Eva Jurickova, David Dobrocky, Filip Skerik
Manufacturing Technology 2022, 22(6):679-692 | DOI: 10.21062/mft.2022.083
The surface created by machining significantly affects the service life and functional reliability of the component. As part of this study, four different chip machining technologies were evaluated on the surface texture of the polymer material Ertacetal C. The samples were processed by turning, milling, grinding and polishing technologies, 5 samples for each technology. Within the given technology, different cutting conditions were chosen to compare the effect of cutting conditions on the resulting surface roughness. The machined surfaces were comprehensively evaluated on the basis of 16 profile and surface roughness parameters due to the practical...
Microscopic Analysis of the Surface Morphology of Multilayer Structures of the AluminumAlloy – Silicon Type after Water Jet Cutting
Jerzy Józwik, Alessandro Ruggiero, Michał Leleń
Manufacturing Technology 2022, 22(6):693-702 | DOI: 10.21062/mft.2022.076
The paper presents the results of an experimental work on the assessment of microscopic morphology of the surfaces obtained as a result of cutting with a Water Jet (WJ) water abrasive beam. The examination of microscopic structures was carried out with the use of Nova NanoSem 450 scanning electron micro-scope. The subject of analysis were the interfacial structures of multilayer structures connected in a vul-canization process with the surface of thin-walled parts made of AW-5754 aluminum alloy. The results of the research were compiled as a function of the technological WJ cutting conditions, such as feedrate and abrasive material flow.
ATF Claddings after High-Temperature Steam Oxidation: WDS and Nanoindentation Studies to Characterize in-depth Material Changes
Jitka Klaisnerová, Leoš Křivský, Petra Gávelová, Jakub Krejčí
Manufacturing Technology 2022, 22(6):703-708 | DOI: 10.21062/mft.2022.078
After the Fukushima accident in 2011 year, ATF nuclear fuel cladding concept was accelerated to achieve the reactor operation with the new accident tolerant structural materials. However, several designed solutions do not fulfil the accident tolerant concept but particularly increase the corrosion resistance of Zr-cladding tubes at normal operating conditions, so-called “Advaced Technology Fuel, EATF”. Cr-coated zirconium claddings following the first concept, have been the widely tested and the first full Cr-coated fuel rods have been planned to operate in LWR reactor conditions around the 2022 year. Our contribution describes the Cr-coated...
Research of Mechanical Properties of the Aluminium Alloy Amag 6000 Under the Plane Stress State Conditions
David Koreček, Pavel Solfronk, Jiří Sobotka
Manufacturing Technology 2022, 22(6):709-712 | DOI: 10.21062/mft.2022.081
Today's demands directly encourage to utilize the light alloy materials in industrial production. In the automotive industry, there is an increasing tendency to reduce the total weight of the car and thus also the weight of the individual car-body parts. A correct description of the material deformation behaviour with respect to the different stress states is very necessary for the own possibility to use these materials in the production. This paper describes a measurement of the mechanical properties and deformation behaviour of aluminium alloy Amag 6000 under the plane strain conditions. Thus these properties are monitored and evaluated by means...
Geometric Features of a Multilayer Surface After Water Jet Cutting in Variable Cutting Conditions
Michał Leleń, Alessandro Ruggiero, Jerzy Józwik
Manufacturing Technology 2022, 22(6):713-723 | DOI: 10.21062/mft.2022.086
The paper presents the results of experimental work on the assessment of 3D geometry of surface stereometry obtained as a result of Water Jet (AWJ) water-abrasive beam cutting using an Eckert Opal WaterJet COMBO hydro-abrasive cutter. Studies of geometric structures were conducted using the Alicona Infinite Focus microscope. The article analyses selected spatial roughness parameters of the multilayer structure surfaces combined as a result of the vulcanization process with an aluminium alloy surface. The results of the research work are summarized in the technological function of the WJ cutting conditions, such as the cutting speed and the mass flow...
Modification of Diffusion Layers by Laser Shock Peening
Jiri Prochazka, Jindrich Vilis, David Dobrocky, Petr Sperka
Manufacturing Technology 2022, 22(6):724-732 | DOI: 10.21062/mft.2022.085
The article deals with a possibilities of an enhancement of functional properties of highly stressed components by specific combination of surface technology. Two surface technologies such as plasma nitriding and laser shock peening were selected for the experiment. Those technologies were applied upon steel 42CrMo4 frequently utilized in manufacturing of strained components. Properties obtained by applied surface technologies were tested by following experimental methods. The chemical composition was verified by optical emission spectrometer Tasman Q4 Bruker. The surface morphology was inspected by scanning electron microscope TESCAN MIRA 4. The microstructure...
Determination of Mechanical Properties of Plastic Components Made by 3D Printing
Josef Sedlak, Zdenek Joska, Lucie Hrbackova, Eva Jurickova, Denisa Hrusecka, Ondrej Horak
Manufacturing Technology 2022, 22(6):733-746 | DOI: 10.21062/mft.2022.082
The presented article deals with the determination of selected mechanical properties of additive ma-terials used for 3D printing (PETG, PLA, ABS, ABS +, PLA ESD, ASA, PC / ABS). Due to the fact that 3D printing has exploded over recent years and additive manufacturing has become popular in some industries, the quality of input materials and their mechanical properties is extremely im-portant. We used 3D printer Original Prusa MK3 to prepare samples for testing. Individual samples printed from all above mentioned materials were analyzed using selected mechanical tests (static tensile test, hardness tests). In the static tensile test, selected parameters...
Evaluation of the Strengthening Effect of Different Surface Treatment Techniques in Steel Crankshaft Manufacturing Industry
Songsong Sun, Xiaolin Gong
Manufacturing Technology 2022, 22(6):747-753 | DOI: 10.21062/mft.2022.087
At present, electromagnetic induction quenching and nitriding are two commonly used surface strengthening approaches applied in improving the strength of the steel parts. In this paper, a comparative study was proposed to research the strengthening effect of these two technologies in improving the fatigue strength of steel crankshaft. First a modified statistical analysis approach of the fatigue limit load was proposed to obtain the distribution of the fatigue limit load. Then two types of steel crankshafts were selected to be the object of research and treated by these two techniques. Finally the standard T and F hypothesis testing methods were conducted...
Modern Technical Solutions for Cleaning, Disinfection and Sterilization
Antonín Svoboda, Milan Chalupa, Josef Jelínek
Manufacturing Technology 2022, 22(6):754-763 | DOI: 10.21062/mft.2022.089
Abstract: The article describes a new technical solution for ensuring efficient and inexpensive cleaning, disinfection and sterilization of production facilities and their equipment, based on the principle of gen-erating the use of ozone gas. It describes the technical solution and construction of sterilization and cleaning equipment with ozone gas and the sterilization of small objects, especially textiles contaminat-ed with various viruses, including the Covid-19 virus. The device is designed as energy-saving, structur-ally simple, with high sterilization and cleaning efficiency. The sterilization device is small in size, mo-bile and its design enables...
Evaluation of the Influence of Process Parameters on the Mechanical Properties of Castings during High Pressure Die Casting
Miroslava Ťavodová, Monika Vargová, Dana Stančeková, Adam Hajdúch, Jozef Mrázik
Manufacturing Technology 2022, 22(6):764-770 | DOI: 10.21062/mft.2022.079
The article is devoted to the influence of mold filling parameters by the HPDC - High Pressure Die Casting method on the mechanical and structural properties of castings intended for technology and mechanization means in forestry. Three groups of AlSi10MnMg alloy samples were formed for the experiment. Three different settings of mold cavity filling parameters were chosen. Two castings were made from each setting. Two samples were taken from two places on the casts. Thus, 12 pieces of samples were used for the experiment. An analysis of their mechanical properties was performed using a static tensile test. tensile strength, yield strength and ductility...
Structural Optimization of Small Diameter Deep Well Rescue Robot Based on Hyperworks-Optistruct
Yi Zheng, Zhe Wu, Chao Ma
Manufacturing Technology 2022, 22(6):771-776 | DOI: 10.21062/mft.2022.088
This paper aims at the problems of poor motion continuity and abrupt acceleration of small diameter deep well rescue robot in the process of motion characteristics analysis. According to the movement characteristics and structural forms of the grasping mechanism and bracket mechanism of the deep well rescue robot, the finite element analysis of the key mechanism is carried out based on Hyperworks-Optistruct solver, according to the analysis results, the specific parameters to be optimized are obtained. And the topology optimization of the key mechanism is carried out, the optimal design scheme of clamping mechanism and bracket mechanism of deep well...