Napawanie krawędzi przedmiotów metodami TIG i PTA
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Abstract
W artykule przedstawiono badania zautomatyzowanego procesu napawania produkcyjnego i naprawczego krawędzi przedmiotów metodami TIG i PTA z materiałem dodatkowym w postaci zimnego drutu. Określono wpływ sposobu podawania drutu położenia jego końcówki względem jeziorka ciekłego metalu na stabilność procesu oraz kształt i jakość uzyskiwanych napoin. Zwrócono uwagę na zmienność warunków przebiegu procesu napawania przy zmianie stopnia koncentracji źródła ciepła. Wyznaczone pole parametrów optymalnych obu metod pozwoliło na opracowanie technologii napawania napoin o gładkim i równym licu na krawędziach przedmiotów oraz umożliwiło precyzyjne sterowanie kształtem i wymiarami geometrycznymi napoin.
The surfacing of the items edges by TIG and PTA methods
Abstract
The paper presents a test of automated manufacturing and repair surfacing by welding process of items edges. TIG and PTA with additional material in the form of a cold wire is used in the test. The influence of the method of wire supply and the wire tip position above the liquid metal on the process stability and also the shape and quality of padding welds are investigated. The variation of the process of surfacing in the change of concentration of the heat source is obtained. The designated field of optimal parameters of both methods led to the technology development of surfacing by welding which allows to produce high quality welds with a smooth and equal face on the edges of items and allowed to precise control of geometric shape and dimensions of padding welds.
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