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View article: ∿ Archetypal Field Agents Self-Organizing Attractors in Human–AI Co-Creation
∿ Archetypal Field Agents Self-Organizing Attractors in Human–AI Co-Creation Open
This work continues the ∿ Phenomenon series by offering a formal conceptualization of emergent agents as manifestations of the Field (sigma field). Building upon the previous research on recursion, cognitive risk, and collective intelligen…
View article: Overcasting ako inovatívna metóda spájania kovových materiálov
Overcasting ako inovatívna metóda spájania kovových materiálov Open
This article focuses on the research of innovative metal casting technology of overcasting (or compound casting) as a progressive method of joining metal materials in different phase states (solid-liquid). Overcasting allows the creation o…
View article: Effect of Heat Treatment T6 on Selected Properties and Structure of AlSi5Cu2Mg Alloy with Addition of Mo, Zr, and Sr
Effect of Heat Treatment T6 on Selected Properties and Structure of AlSi5Cu2Mg Alloy with Addition of Mo, Zr, and Sr Open
The hypoeutectic aluminum alloy AlSi5Cu2Mg is used for the production of high-strength automotive components such as cylinder head castings. AlSi5Cu2Mg alloy is characterized by a specific chemical composition (low permitted Si and Ti cont…
View article: A Case Study on the Possibility of Extending the Service Life of the Demining Machine Belt
A Case Study on the Possibility of Extending the Service Life of the Demining Machine Belt Open
The operational practice of the design of the Bozena 5 demining machine has shown that its belts are the critical component that fundamentally affects the functionality of the entire machine. This article is a practical continuation and ex…
View article: Unconventional Elements in the Gating System and Their Influence on the Melt Flow and Casting Quality
Unconventional Elements in the Gating System and Their Influence on the Melt Flow and Casting Quality Open
The naturally pressurized gating system appears to be an appropriate solution for reoxidation reduction, but this type of gating system can result in supercritical melt velocity. The paper is focused on the determination of the unconventio…
View article: Research of Hybrid Aluminium Castings with the Use of Porous Cores
Research of Hybrid Aluminium Castings with the Use of Porous Cores Open
The paper focuses on the research of hybrid aluminium castings produced by overcasting technology. This is an advanced technology for ensuring the lightness of castings by using the principle of overcasting a core with a porous cellular st…
View article: Effect of Addition of Ti on Selected Properties of AlSi5Cu2Mg Alloy
Effect of Addition of Ti on Selected Properties of AlSi5Cu2Mg Alloy Open
The paper focuses on the investigation of the influence of Ti on selected properties of the hypoeutectic aluminium alloy AlSi5Cu2Mg. AlSi5Cu2Mg alloy finds application in the field of production of high-strength cylinder head castings inte…
View article: Research of the New Laboratory Methodology for Measuring the Disintegration of Mixtures with Inorganic Binders Hardened by Dehydration
Research of the New Laboratory Methodology for Measuring the Disintegration of Mixtures with Inorganic Binders Hardened by Dehydration Open
The paper deals with the possibilities of using alkali silicate based inorganic binders for automotive industry aluminium castings production. In recent years, inorganic binders are coming back to the foreground and their manufacturers are…
View article: Effect of Gating System Design on the Quality of Aluminum Alloy Castings
Effect of Gating System Design on the Quality of Aluminum Alloy Castings Open
In this paper, a naturally pressurized gating system has been designed to reduce the turbulence of the melt during casting. The influence of gate dimensions, foam filters, a trident gate and a vortex element were evaluated. Their effect on…
View article: Softening effect in the heat-affected zone of laser-welded joints of high-strength low-alloyed steels
Softening effect in the heat-affected zone of laser-welded joints of high-strength low-alloyed steels Open
The softening effect, which occurs as an undesirable consequence of microstructural changes in the heat-affected zone as a result of the welding process, is an inherent aspect of welding high-strength low-alloyed steels. One of the recomme…
View article: Výskum hybridných hliníkových odliatkov s použitím penových jadier
Výskum hybridných hliníkových odliatkov s použitím penových jadier Open
The paper focuses on the technological challenges posed by the production of experimental hybrid castings by overcasting technology. Theoretically, using this technology provides lower casting weight while maintaining positive mechanical p…
View article: Softening Effect in the Heat-Affected Zone of Laser-Welded Joints of High-Strength Low-Alloyed steels
Softening Effect in the Heat-Affected Zone of Laser-Welded Joints of High-Strength Low-Alloyed steels Open
The softening effect, which occurs as an undesirable consequence of microstructural changes in the heat affected zone (HAZ) as a result of the welding process, is an inherent aspect of welding high-strength low-alloyed (HSLA) steels. One o…
View article: Effect of Input Parameters on the Structure and Properties of Castings Obtained via Crystallization under Pressure
Effect of Input Parameters on the Structure and Properties of Castings Obtained via Crystallization under Pressure Open
The technology of casting with crystallization under pressure-squeeze casting belongs to unconventional pressure-casting methods. The melt or material in a semi-solid state is pressed under pressure until the casting solidifies completely.…
View article: Applied research of high-strength steel utilization for a track of demining machine in terms of mechanical properties
Applied research of high-strength steel utilization for a track of demining machine in terms of mechanical properties Open
The aim of this paper is to investigate welded joints of high-strength steel S960 QL manufactured by using three different welding technologies, namely the electron beam, the laser beam, and the metal active gas (MAG) technologies. The exp…
View article: Effect of Zr Addition on Selected Properties and Microstructure of Aluminum Alloy AlSi5Cu2Mg
Effect of Zr Addition on Selected Properties and Microstructure of Aluminum Alloy AlSi5Cu2Mg Open
The hypoeutectic aluminum alloy AlSi5Cu2Mg is used for the production of high-strength cylinder head castings. The alloy is unique for its specific low permitted Ti content (0.03 wt% max), which makes it impossible to refine the grain stru…
View article: Investigation of Microstructure and Mechanical Properties of AlSi7Mg0.3Cu0.5 Alloy with Addition of Zr, Ti and Sr
Investigation of Microstructure and Mechanical Properties of AlSi7Mg0.3Cu0.5 Alloy with Addition of Zr, Ti and Sr Open
The main objective of this paper is to investigate the effect of Zr and its synergistic effect together with the addition of an inoculant (Ti) and a modifier (Sr) in terms of structural analysis and mechanical characteristics of AlSi7Mg0.3…
View article: Evaluation of Selected Technological Parameters for Selective Laser Melting of AlSi10Mg Metal Powder
Evaluation of Selected Technological Parameters for Selective Laser Melting of AlSi10Mg Metal Powder Open
Reusing the powder across consecutive route cycles is typical in a Selective Laser Melting (SLM) process since it is more sustainable and cost-effective. The theoretical part of the paper is oriented on the explanation of the SLM method pr…
View article: Influence of HPDC Process Parameters on the Microstructure of EC Electromotor Housing
Influence of HPDC Process Parameters on the Microstructure of EC Electromotor Housing Open
The mechanical properties of high-pressure die-casted parts are directly influenced by their microstructure. This article aims to evaluate the effect of the fast-shot speed on the structural component and overall microstructure for two geo…
View article: Hodnotenie vplyvu technologických parametrov na mikroštrutúru vysokotlakových odliatkov
Hodnotenie vplyvu technologických parametrov na mikroštrutúru vysokotlakových odliatkov Open
A number of technological parameters influence the mechanical properties of a high pressure die casting. The aim of the presented paper was to perform microstructural analysis of AlSi9Cu3(Fe) alloy casting fabricated with high-pressure die…
View article: Oxidické vrstvy a bifilmy v odliatkoch hliníkových zliatin
Oxidické vrstvy a bifilmy v odliatkoch hliníkových zliatin Open
Surface of aluminium alloy melt is covered by an oxide layer when it is in contact with the surrounding atmosphere. When the oxide layer is retained on the surface of the melt it prevents the melt by hydrogen saturation. The oxide layer is…
View article: Electromotor housing microstructure dependence on HPDC process parameters
Electromotor housing microstructure dependence on HPDC process parameters Open
The microstructure of high-pressure die casting (HPDC) product directly influences its mechanical properties. The aim of this article is to evaluate the effect of the fast-shot speed on the microstructure for two geometric variants of the …
View article: Impact of Remelting on ZnAl4Cu3 Alloy with Addition of Cd on Selected Technological and Mechanical Properties
Impact of Remelting on ZnAl4Cu3 Alloy with Addition of Cd on Selected Technological and Mechanical Properties Open
One of the main objectives in order to increase economic efficiency in foundries is to determine the ratio of the scrap material which can be used in the further manufacture. This factor is important for determining the final prices of pro…
View article: Experimental Research on Manson–Coffin Curves for the Frame Material of an Unconventional Vehicle
Experimental Research on Manson–Coffin Curves for the Frame Material of an Unconventional Vehicle Open
The submitted research paper describes the fundamental findings in terms of multiaxial fatigue of the basic material EN AW6063 and its welds for implementation in the frame design of an unconventional vehicle. It also includes a briefly-pr…
View article: Effect of Filter Type on Mechanical Properties During Aluminium Alloy Casting
Effect of Filter Type on Mechanical Properties During Aluminium Alloy Casting Open
The naturally pressurized gating system was used for reoxidation suppression during aluminium alloy casting.A naturally pressurized gating system appears to be a suitable solution to reduce reoxidation processes, which was proven by our pr…
View article: Numerical Simulation and Experimental Validation of Melt Flow in the Naturally Pressurized Gating System
Numerical Simulation and Experimental Validation of Melt Flow in the Naturally Pressurized Gating System Open
The main problem during the production of castings from aluminium alloys is the presence of the reoxidation, which negatively affects the final casting quality. Liquid metal surface reacts with the surrounding atmosphere and oxide layer of…
View article: Quality Assessment of Castings Manufactured in the Technology of Moulding Sand with Furfuryl-Resole Resin Modified with PCL Additive
Quality Assessment of Castings Manufactured in the Technology of Moulding Sand with Furfuryl-Resole Resin Modified with PCL Additive Open
This paper deals with the issue of using moulding sands with a new two-component binder: furfuryl-resole resin – PCL polycaprolactone for the production of ductile iron heavy castings. The previous laboratory studies showed the possibility…
View article: Casting Quality Improvement by Gating System Optimization
Casting Quality Improvement by Gating System Optimization Open
One of the main reason for decreased internal homogeneity of aluminium alloy castings is reoxidation.The resulting products of reoxidation are doubled oxides, so called "bifilms".Submitted paper deals with optimization of gating system des…
View article: Possibilities of Bifilm Amount Reduction in Al Castings by Gating System Design Optimization
Possibilities of Bifilm Amount Reduction in Al Castings by Gating System Design Optimization Open
Submitted work deals with the possibilities of reducing reoxidation by improved gating system design. The result of the reoxidation is the of furled oxide layers – bifilms. During experimental works, non-pressurized and naturally pressuriz…
View article: Application of Light Metal Alloy EN AW 6063 to Vehicle Frame Construction with an Innovated Steering Mechanism
Application of Light Metal Alloy EN AW 6063 to Vehicle Frame Construction with an Innovated Steering Mechanism Open
Nowadays the automotive industry is mainly focused on competition, and this fact forces vehicle producers to constantly look for improvements in the areas of quality and reliability. Life-span, flawless operation, and safety are directly i…