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View article: Effects of Printing Angle, Infill Density and Cryogenic Pre-Treatment on the Tensile and Flexural Properties of FFF-Printed PLA
Effects of Printing Angle, Infill Density and Cryogenic Pre-Treatment on the Tensile and Flexural Properties of FFF-Printed PLA Open
Additive manufacturing of polymer materials, also known as 3D printing, is becoming a key technology for the production of functional parts with the ability to customize the structure and properties according to the application requirement…
View article: Mechanical Properties of PETG Parts Produced by the FFF Method with Different Infill Geometries
Mechanical Properties of PETG Parts Produced by the FFF Method with Different Infill Geometries Open
Additive technology (3D printing) is a method of manufacturing plastics that allows you to create sophisticated shaped parts at relatively low costs and in a short time. This method is particularly useful for rapid manufacturing, including…
View article: Design and Optimization of the Front Wing for Formula Student Monopost
Design and Optimization of the Front Wing for Formula Student Monopost Open
This paper focuses on the design and construction of the front wing for the FS TUL Racing team's monopost, which competes in Formula Student racing. The aim is to use knowledge of fluid mechanics, structural design, materials, CAD systems …
View article: Research on the Characteristics of Steels Essential for Increasing the Durability of Selected Special Equipment Structures
Research on the Characteristics of Steels Essential for Increasing the Durability of Selected Special Equipment Structures Open
Various steels with suitable properties can be used as barrel steel. Most of the steels intended for the production of barrels are low or medium alloy steels. Barrel steels are significantly stressed by high pressures and temperatures duri…
View article: Experimental Comparison of the Material Properties of Original and Aftermarket Gears
Experimental Comparison of the Material Properties of Original and Aftermarket Gears Open
Gear wear is the main factor affecting their performance and service life. In addition to the accuracy of production, the quality of the material from which the gears are made also depends on the degree of wear. The article compares the ma…
View article: Monitoring the Soft Sludge and Water Content of Hydraulic Oil Samples Using Drop Analysis
Monitoring the Soft Sludge and Water Content of Hydraulic Oil Samples Using Drop Analysis Open
Water or moisture contained in any form in hydraulic oil is not desirable in a hydraulic system. It can cause emulsification of the oil, which results in deterioration or rupture of the lubricating film, as well as corrosion of metal parts…
View article: Increasing the Corrosion Resistance of Structural Steels Using Plasma Nitriding
Increasing the Corrosion Resistance of Structural Steels Using Plasma Nitriding Open
Plasma nitriding (ion nitriding) is a plasma-supported thermochemical cementation of steel, during which the hardness of the surface and resistance to wear and fatigue of the material increases due to the formation of a hard layer. The pro…
View article: Study of the Influence of Perimeter Count on the Mechanical Properties of 3D-Printed PLA
Study of the Influence of Perimeter Count on the Mechanical Properties of 3D-Printed PLA Open
This study investigates the effect of perimeter number on the mechanical and viscoelastic properties of FFF-produced PLA prints. This study follows on from a previous study that focused on the type and volume of infill in 3D printed sample…
View article: Comprehensive Review: Technological Approaches, Properties, and Applications of Pure and Reinforced Polyamide 6 (PA6) and Polyamide 12 (PA12) Composite Materials
Comprehensive Review: Technological Approaches, Properties, and Applications of Pure and Reinforced Polyamide 6 (PA6) and Polyamide 12 (PA12) Composite Materials Open
This article presents a comprehensive analysis of polyamide 6 (PA6) and polyamide 12 (PA12) composites fabricated using additive manufacturing technologies such as Selective Laser Sintering (SLS) and Multi Jet Fusion (MJF). It focuses on t…
View article: Comprehensive Review: Optimization of Epoxy Composites, Mechanical Properties, & Technological Trends
Comprehensive Review: Optimization of Epoxy Composites, Mechanical Properties, & Technological Trends Open
Epoxy composites play a crucial role in modern materials technologies, with their exceptional properties such as high strength and thermal and chemical resistance, making them ideal for a wide range of industrial applications, including ae…
View article: Quantitative Risk Analysis with the Possibility of Stochastic and Deterministic Simulation of Failure Trends from the Point of View of Expressing the Probability of Two Parameters
Quantitative Risk Analysis with the Possibility of Stochastic and Deterministic Simulation of Failure Trends from the Point of View of Expressing the Probability of Two Parameters Open
The aim of this paper is to present theoretical starting points in the field of risk analysis. This paper is formulated as a systematic overview of the latest knowledge and trends, which are supported by the simulation of selected risk par…
View article: The Influence of the Geometry of Movement during the Friction Process on the Change in the Tribological Properties of 30CrNiMo8 Steel in Contact with a G40 Steel Ball
The Influence of the Geometry of Movement during the Friction Process on the Change in the Tribological Properties of 30CrNiMo8 Steel in Contact with a G40 Steel Ball Open
Experiments with changes in motion geometry can provide valuable data for engineering and development purposes, allowing a better understanding of the influence of tribological factors on the performance and service life of joints. The pre…
View article: Reliability Analysis during the Life Cycle of a Technical System and the Monitoring of Reliability Properties
Reliability Analysis during the Life Cycle of a Technical System and the Monitoring of Reliability Properties Open
The present review deals with the issues of ensuring and maintaining high reliability during the entire life cycle of a technical system in the engineering sector, i.e., determining the requirements, design, research, development, producti…
View article: Analysis of Tribological Properties of Powdered Tool Steels M390 and M398 in Contact with Al2O3
Analysis of Tribological Properties of Powdered Tool Steels M390 and M398 in Contact with Al2O3 Open
The present article examines special steels used for the production of injection screws in the plastic industry, with a glass fiber content of up to 30%. Experimental materials, M390 and M398, are classified as tool steels, which are produ…
View article: The Effect of Mechanical Properties of a Rubber Compound on Tyre Wear
The Effect of Mechanical Properties of a Rubber Compound on Tyre Wear Open
This article deals with the effect of mechanical properties of a rubber compound on tyre wear.For detection purposes, samples of thirteen types of rubber compounds were made, used, and processed in practice.Their hardness was measured with…
View article: Dry Sliding Friction of Tool Steels and Their Comparison of Wear in Contact with ZrO2 and X46Cr13
Dry Sliding Friction of Tool Steels and Their Comparison of Wear in Contact with ZrO2 and X46Cr13 Open
Tool steels are used in stamping, shearing processes, and as cutting tools due to their good mechanical properties. During their working cycle, steels are subject to aggressive conditions such as heat stress, fatigue, and wear. In this pap…
View article: The fault tree simulation modeling
The fault tree simulation modeling Open
This article explains differences in mathematical and simulation modeling approaches for solving quantitative analysis of the fault tree. With basic knowledge of reliability of complex systems and priorities in determining the phenomenon o…
View article: The fault tree stochastic analysis
The fault tree stochastic analysis Open
This article presents a solution of the fault tree quantitative analysis with application of knowledge of probability distribution type into the failure and distribution parameters in case of non-renewed objects or objects being restored. …