Susceptibility of iron castings to heat absorption from an electric arc and to hardened-layer shaping |
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Authors: | Antoni W?adys?aw Or?owicz Andrzej Trytek |
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Affiliation: | (1) the Department of Foundry and Welding Engineering, Technical University Rzeszów, 35-959 Rzeszów, Poland |
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Abstract: | Surface fusions were performed by the gas tungsten arc welding (GTAW) surfacing process on plate castings of spheroidal graphite
cast iron with a travel speed from 200 to 800 mm/min. Their geometry and hardness were measured. Calorimetric measurements
of the net heat input for the GTAW process have been conducted. A stepwise regression method was used to develop the relationship
between GTAW process parameters and those of fusion geometry, microhardness, arc efficiency, and melting efficiency for the
obtained data set. |
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Keywords: | |
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