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논문 기본 정보

자료유형
학술저널
저자정보
Yong Jin Cho (Dong-Eui University) Yeong Do Park (Dong-Eui University)
저널정보
한국비파괴검사학회 비파괴검사학회지 비파괴검사학회지 제38권 제2호
발행연도
2018.4
수록면
107 - 113 (7page)
DOI
10.7779/JKSNT.2018.38.2.107

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초록· 키워드

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A thermography system collects the radiant energy emitted from the target by a detector, converts it into an electrical signal, computes the quantitative physical value through the input algorithm, and visualizes the heat distribution on the surface of the target. Thermography systems, which are representative of non-contact measuring instruments, have been steadily expanding in various fields such as military, medical, electrical, and machine defects owing to the development and popularization of infrared technology. Herein, the heat generation and defect analysis of projection welding and the cold metal transfer (CMT) welding process were performed using a thermography system. The factors considered in the projection welding and the CMT welding process are the chemical constituting the material and the amount of energy input to the unit length. From the study, we present the results of the fracture strength of the welded material and the heat distributing on the surface of the material during the two welding processes. Through this study, we confirmed that the heat distribution and physical properties of the material surface, as obtained by a thermal imaging system, are critical to ensure the quality, strength, and stability of welding.

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Abstract
1. Introduction
2. Experimental Method
3. Experimental Results
5. Conclusions
References

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