The research model of panel data analysis in this study was used as the dependent variables and the business characteristics of the welding industry were reflected in the research model for systematic analysis of the effect of welding technology on the welding industry. As a result of the existing research, the domestic welding technology is seriously encroaching on the domestic welding industry between the United States, Japan and China. There is no quantitative statistical analysis on this aspect. In this study, the panel data analysis is used to indicate differences in explanatory power by numerical values of POLS model, fixed effect and random effect. And the prior studies on the current status of welding industry related to arc welding, special welding, multiple welding, welding and bonding technology are applied by the panel data analysis. Therefore, the problems of existing research are diagnosed while presenting the future research directions.

ABSTRACT
1. 서 론
    1.1 용접분야 시장현황 및 전망에 대한 연구배경
    1.2 아크용접, 특수용접, 다수용접, 용접․접합 기술과 관련된용접산업의 연구동향
2. 본 론
    2.1 통계분석 절차
    2.2 통계분석 결과
3. 결 론
References

• 안덕현(Ph. D Course in Department of Mechanical Engineering, Graduate School, Kongju National University) | Duck-Hyun An
• 조재웅(Division of Mechanical & Automotive Engineering, Kongju National University) | Jae-Ung Cho Corresponding Author