Closed-Loop Radiographic Process Control of ARC Welding

Date
1989
Authors
Rokhlin, S.
Guu, A. C.
Cho, K.
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Altmetrics
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Research Projects
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Abstract

Two different approaches may be applied to the nondestructive evaluation of welds. The conventional one consists in the application of nondestructive inspection after welding. The second, new, approach is in-process nondestructive evaluation where the production and testing operations are integrated into a single procedure. In this combined approach information received from nondestructive evaluation may be used in feedback with other process parameters for process control. Such a concept gives a significant cost saving [1]. Because the non-destructive system is included as a part of the sensing system in the feedback loop of the process control the quality control is integrated with the process itself.

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