Conclusions
From the above relation, it is apparent that input power is directly related to melting rate, electrode density, and a weighted sum of the ingot and electrode cross-sectional areas. Also, since the data used in the analysis were obtained from seven different melting facilities, it can be concluded that existing differences between melting practices and furnace designs have little or no effect on the correlation among the variables of several sources. A higher degree of correlation, however, might have resulted if sufficient data had been available from a single source and a single alloy composition.
The general significance of the development of this relationship by semiempirical analytic means may be summarized as follows:
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1)
A known relationship among the arc-melting variables will aid current efforts to optimize tungsten-base alloy arc-melting practice.
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2)
With arc-melting practices optimized, use of the relationship would contribute to consistency among these practices and hence to quality control in the production of tungsten-base alloy ingots.
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3)
The arc-melting process for other metals might also be defined by a relationship similar to the one that has been developed for tùngsten.
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Ratliff, J.L., Ogden, H.R. A statistical analysis applied to arc melting tungsten-base alloys. JOM 16, 950 (1964). https://doi.org/10.1007/BF03378309
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DOI: https://doi.org/10.1007/BF03378309