Browse

The paper presents experimental results obtained in determining the chemical composition of the base material- heat affected zone пїЅ filler material in reworking by ultrasonic welding field. The work shows the curve of the concentration of carbon, nickel, chromium, molybdenum, iron, tungsten, silicon and cobalt in the resulted material couple. There are presented differences between reworking in ultrasonic field and common welding process. The analysis of the results obtained and presented in the paper shows the ...

The paper presents a method for calculating and determining the environmental impact of the metallic material production in the specific shop of the machine building plant. Using mass balance equation, main pollutant emissions and by-products like CO, SO2, NOx, Heavy metal particles, slag, mud or volatile organic compounds were determined in the case of 1000 Kg steel, copper, aluminum and zinc production. Measurements were made with an original stand measuring emissions and by-products even in the work area operat...