Development of the methods of coupling quality measurement between steel-aluminium castings elements
DOI:
https://doi.org/10.15587/2312-8372.2016.59836Keywords:
metrological support of measurement, bimetallic castings, temperature distribution, weldability quality of the elementsAbstract
Structural components made of the same metal are not optimal in terms of the ratio of their shape and weight to mechanical properties, chemical resistance, wear characteristics, etc. Significant deficiencies have "single alloy" when trying to simultaneously solve the double, or even triple problems, such as to provide the required strength for some detail at a high thermal conductivity and low cost. Meet these conflicting demands is only possible through the use of bimetallic products. In the manufacture of such products it is drastically increased demands on the culture of production and, above all, to the strict maintenance of process parameters within the strict boundaries. In these circumstances, comes to the fore the need for methods and tools to accurately measure these parameters.
Methods and means for measuring the surface temperature of the steel insert are developed for automated control systems of bimetallic casting process, including the use for primary metrological data of the thermal imager and the further computer processing of digital video stream from the latter. Methods and means of measuring the degree of weldability are developed for automated control systems of bimetallic casting process, which are non-destructive ultrasonic testing of the inner cylindrical surface of the steel-tube insertion at the complex translational and rotational motion of the measuring head. Advantages of the main characteristics of the proposed methods in relation to their prototypes are experimentally confirmed.
The results have been implemented in a foundry with a positive technical effect.
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Copyright (c) 2016 Оксана Степанівна Савєльєва, Ігор Валентинович Прокопович, Олександр Васильович Шмараєв, Маріанна Олександрівна Духаніна, Сергій Вікторович Кошулян, Ігор Анатолійович Саух
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