Calculation of brake-force distribution on three-axle agricultural trailers using simulation methods

Properties of WC-Co coatings with Al2O3 addition on the C45 mild steel surface in acidic chloride solution were examined. The WC-Co-Al2O3 coatings on steel surfaces were deposited by an electro-spark (ESD) technique. The anti-corrosion properties of the coatings were mainly investigated by electrochemical methods. Moreover, the scanning electron microscope (SEM) was employed for the observation of the surface of materials. The structure of coatings depended on the composition of electrospark electrodes. In the WC80-Co5-Al2O315 coating, the largest corrosion resistance was shown. The corrosion rate of the specimen was approximately eight times smaller than the coating without of Al2O3 addition. The aim of the research was to obtain, by adding alumina, an improvement in the functional properties of WC-Co coatings produced by the ESD method. Due to the original features of ESD coatings, they can be used in sliding friction pairs and as anti-wear coatings on cutting tools.

Section: Introductionmentioning

confidence: 99%

Properties of WC-Co coatings with Al₂O₃ addition

Radek

2023

“…The approach proposed here can also be effectively used to significantly improve quality in other industrial production processes (e.g. materials (Szczotok and Roskosz, 2005;Ulewicz et al, 2010;Radzymińska-Lenarcik et al, 2018), machinery (Radek, 2009;Pliszka and Radek, 2017;Danielewski et al, 2021;Kurp and Danielewski, 2022), rail (Radek and Dwornicka, 2020;Czyczuła and Rochel, 2021;Regulski and Abramek, 2022), agricultural machinery (Lipiński and Wach, 2014;Lipiński, 2017;Radzajewski, 2021;Sawicki, 2021), automation (Morawski et al, 2021;Naik, 2021;Wysoczański et al, 2021)) and services (e.g. water supply (Bielski, 2021;Wójcicka, 2021), maintenance (Traneva et al, 2019a;Kubecki et al, 2021;Markovic et al, 2021;Słowiński et al, 2021)).…”

Section: Introductionmentioning

confidence: 99%

The use of combined quality management instruments to analyze the causes of non-conformities in the castings of the cover of the rail vehicle bearing housing

Czerwińska

Pietraszek

2022

The most critical activities influencing the success of each company are continuous improvement of the quality of manufactured products and monitoring of the production process. Skillful use of available technologies and quality management tools allows for eliminating casting non-conformities and preventing their repetition in the future. The research aimed to analyze the types of defects occurring in castings, the location of their most frequent occurrence areas, and to identify the causes of defects in castings of bearing housings used in rail vehicles. The benefits of a combination of quality management tools for diagnosing material discontinuities in the analyzed castings are presented in this article.

Thermal comfort assessment in the modern passenger car under actual operational conditions

Dębska

Krawczyk

2023

People’s ever-increasing needs encourage designers of various vehicles to search for solutions that will provide the most comfortable internal environment conditions. Currently, partly due to the COVID-19 threat, many people use their individual cars to travel to work, college, shops, trips, and holidays. Proper internal air parameters that need to be maintained in vehicles are critical in the summer. The article discusses the thermal comfort of four passengers of a modern car produced in 2017 to verify if contemporary production technology can successfully meet the thermal needs of people under actual conditions in the Polish climate. For this purpose, five temperature values were tested: 20°C, 22°C, 24°C, 26°C, and 28°C for the car located in the shade and sun. In addition, the Testo 400 meter was used to control and measure the internal parameters, and questionnaires were used to find out about the thermal impressions of the respondents. The research was carried out in July when the air temperature in Poland was high.