Aluminum and its alloys are essential in construction due to their lightweight nature and recyclability. To enhance durability, protection against corrosion is vital, with cataphoretic painting being particularly effective. This study evaluated the damage rate of cataphoresis coatings on AW 1050 H24 aluminum, focusing on the impact of different degreasing solutions. By analyzing temperature, concentrati (…)
A growing number of steel components are being fabricated by 3D metal printing. Using metallic powder as the material fed into the laser is selective laser melting (SLM), one of the most popular and precise techniques. The main focus of this article is the investigation that Renishaw conducted on the powder that was supplied. The powder is made using the gas atomization method, and the powder obtained f (…)
This study delves into the comparative analysis of vibrational tumbling and electrolytic polishing, two distinct surface finishing techniques, on the surface roughness parameters of additively manufactured Inconel 718 alloy. Surface roughness significantly impacts the functionality of components, especially in aerospace and automotive applications where Inconel 718 superior mechanical properties are sou (…)
Mobile robots (MRs) are exerting a significant influence in industrial as well as residential settings. Concurrently with the escalating advancement of technology, the incorporation of artificial intelligence algorithms into the obstacle evasion issue of MRs is gaining increasing attention. The paper utilizes Deep Reinforcement Learning (DRL) to a MR that is furnished with a camera. Images captured by a (…)
While dealing with dynamic scenarios, mobile robot (MR) path planning (PP) has proven to be extremely challenging. To overcome difficulties with grid-map representation, the paper proposes a hybrid path planning strategy. In a typical setting, an A-star algorithm first generates a global path planning (GPP). To ensure safe obstructive avoidance, the modified heuristic function is enhanced with a risk co (…)
The paper presents results on accuracy assessment of scanning procedure and of subsequent 3D printing of the object copies. The investigated object was an archeological artifact made out of burnt constructional clay, found at the archaeological site No. 6 in Gasawa, Poland, assigned to the end of 2nd or of 3rd century C.E. The analysis enabled to determine the taxonomic marking, the type and species of (…)
The performance of the final part of the turning process, a topic of practical importance, heavily depends on the cutting parameters. Surface quality, a crucial product attribute in manufacturing, often tops consumer demands during machining due to its significant influence on product functionality. This paper assesses the correlation between the detected vibration signal, statistical parameters (Crest, (…)
This study investigates the influence of saline environments, including conditions arising in the vicinity of roads with winter maintenance by de-icing salts, and exposure in other specific environments affected by chloride ion deposition, on the material properties of EOS PA2200 (PA12). The research focuses on assessing weight gain and mechanical properties using tensile testing. The experimental findi (…)
The article focuses on easily adjustable technological parameters controlling the effectiveness of pulsating water jet (PWJ). The first technological parameter is standoff distance; this parameter controls water cluster development and should be set optimal according to process hydraulic parameters. The second parameter is feedrate, this parameter, when considering linear trajectory, controls the impact (…)
This work uses a novel stir-ultrasonic-squeeze casting technique to fabricate hybrid nanocomposites based on aluminium alloy 6061 (AA6061). Owing to its excellent strength, ability to withstand corrosion, and formability as a matrix material, AA6061 was chosen. The process involves adding boron carbide (B4C) & graphite and (Gr) nanoparticles (np) to the aluminium melt, followed by mechanical stirring, u (…)
Manufacturing of bent composite tubes with variable cross-section is a challenge. The traditional process in composite materials uses retractable mandrels that in case of inflated or bent tubes cannot be applied. The tubular composite elements are often used in high performance bicycles, in the manufacturing of frames, handlebars, saddle pipe supports, etc. This paper presents research on the design of (…)
Titanium carbo-nitride (TiCN) comes under the metal nitride group which can provide a combined property of titanium carbide (TiC) and titanium nitride (TiN) coating. TiCN Coating possess an excellent mechanical and tribological, properties which leads its application in many industries particularly in the Automotive and aerospace industries. TiCN films can be very hard and strong based on the compositio (…)
This study assesses the geometric distortion of cantilevers fabricated from stainless steel 316L with varying internal structures using Selective Laser Melting (SLM) technology. The cantilevers were printed under identical conditions and subsequently post-processed with Wire Electrical Discharge Machining (WEDM) and heat treatment. The geometric deviations were evaluated using a micrometer and a Coordin (…)
Increasingly, the fabrication of steel components is being done via 3D metal printing. One of the most commonly utilized reliable and precise methods is called selective laser melting (SLM), and it involves the use of metallic powder as the material that is fed into the laser. One of the famous problems that SLM technicians face is the roughness of the printed parts. The goal of this paper is to study t (…)
Additive technologies currently represent progressive technologies, both in the field of manufacturing itself and in materials engineering, where the main source is powder material. Powder material as a source material is characterized by the mechanical, physical and flow properties of fine powders. Targeted modification of these properties represents a research challenge in this area with the aim of cr (…)
The paper presents the results of metrological tests and measurements of dimensional accuracy of models manufactured using the photo-curing additive technology of POLYJET MATRIX - PJM. The material from which the samples were manufactured was a liquid polymer resin with the commercial name MED610, which is characterized by a high degree of biocompatibility, which increases the validity of the research i (…)
Additive technologies, also known as 3D printing technologies, are becoming more and more widely used in industrial conditions for the production of finished elements, especially for the production of parts that would be very difficult or even impossible to produce using existing technologies. Technologically difficult elements include parts with a thin-walled spatial structure. This work presents the r (…)
The present work investigates the variation of the surface roughness due to the build position of specimens with respect to the inert gas flow direction and re-coater movement direction. Selective laser melting (SLM) method was used to study this effect using Inconel 718 as workpiece material. A total of 21 samples were placed equidistant from each other on the built plate to observe the effect of gas f (…)
Service robots are of paramount importance in both industrial and residential environments. Nevertheless, these robots frequently encounter obstacles in the form of perilous elements present in their surroundings, which may result in their malfunction and hinder their optimal performance. Hence, autonomous robot applications heavily rely on coverage path planning algorithms, which facilitate the executi (…)
The rate of “Not Good” products due to the presence of abnormal objects during the quality control inspection of mobile phone’s panels is as high as 38 percent without supervision and 19 percent with naked eye’s inspection. To reduce the loss of small abnormal objects and improve the recognition rate of object detection of automatic panel quality monitoring, the paper proposes abnormal object recognitio (…)
In this study, the microstructural evolution of the microstructure and phase transformation of the biomedical Ti-6Al-4V alloys fabricated by Selective Laser Melting (SLM) at various solution treatment temperatures was investigated in order to achieve the formation and stabilization of (α + β) lamella structure for the final products. Solution heat treatments were conducted at 850℃ for 2.5 hours; at 950℃ (…)
Innovation is a key factor for maintaining competitiveness in today's dynamic environment. Innovation-focused management tools, such as the Balanced Scorecard (BSC) and Data Envelopment Analysis (DEA), play a crucial role in this process. BSC provides a comprehensive overview of a company's performance through a balanced set of indicators focused on both financial and non-financial aspects. In contrast, (…)
This article deals with the issue of the automatic setting of machines on their base. The focus is on machines with a self-supporting frame, freestanding, on more than three supports. The alignment uses the previously presented method of precise and repeatable machine placement on the foundation. As a result, the machine has the necessary parameters in terms of its geometry, and at the same time a defin (…)
The article presents a combined mathematical model that allows us to determine and investigate the dynamic characteristics of the latest type of non-contact sealing for pump and compressor shafts, which eliminates leakage of pumped products, which are important from the point of view of safe operation. The proposed method is based on the laws of conservation of energy and conservation of matter. The mod (…)
This article presents a novel approach to predicting the service life of mechanical systems. Forecasting is based on the assumption that the product's behavior under operating conditions should be considered as the system's behavior operating in a blow-up mode. According to this, the information signal recorded when monitoring the technical condition of a product must contain a periodic component. The m (…)
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