The purpose of this study was to establish the noise characteristics of noise sources and the corresponding noise reduction measures during each manufacturing process closest to the workers in the metalworking factory. To this end, the noise generated in the manufacturing process of metal products was measured and analyzed, and the frequency characteristics of noise sources and the causes of noise were identified. The noise map was used to predict the noise reduction effect. Moreover, it is expected that this will ultimately contribute to the reduction of human risks caused by the noise of the civil environment around metalworking factories.

ABSTRACT
1. 서 론
2. 소음원 전수조사
3. 소음원 측정 분석 및 원인규명
4. 소음지도 제작 및 공장 주변지역 소음도 영향분석
5. 결 론
References

• 장명(Department of Mechanical Engineering, Wonkwang University) | Ming Zhang
• 김병삼(Department of Mechanical Engineering, Wonkwang University, Department of smart automobile engineering, Wonkwang University) | Byoung-Sam Kim Corresponding Author
• 이동필(Department of Mechanical Engineering, Wonkwang University) | Dong-Pil Lee