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The paper presents a new method for reconditioning of automotive parts in an ultrasonic field by reworking. Experimental results were obtained in the case of using different material couples. Using three couples of different materials, three technological metallization processes were studied: - oxy-fuel flame and wire; - three-wire electric arc - oxy-fuel flame and powder In experimental work the following material couples were studied: X30NiMoVCr11-STELLITE 12 AWS, X30NiMoCr11-TP 4000, FxMo1Si24-STELLITE 12AWS. D...

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...