In this research, the welding experiment was carried out with both the steel materials (SS400+SS400, SUS304+SUS304) and the different steel materials (SS400+ SUS304), where SS400 is a general structural rolled steel material and SUS304 is a cold strip stainless steel sheet. The average of yield point of a SS400 experimental piece was the most highest point with 2015.54 N/m2. Although welding defects were not found with the naked eye, it was sure that there were some wilding defects because there were no stress against load through experiments. The rate of yield point of experimental piece A, experimental piece B and experimental piece C was respectively 1.7mm, 1.3mm and 2.6mm. The rate of breakdown was respectively 39.77mm, 17.97mm and 2.6mm. So considering price and efficiency with use condition is very important. SS400 and SUS304 will be profited from considering price and mechanical property with use condition.

ABSTRACT
 1. 서론
 2. 실험재료 및 방법
  2.1 실험재료
  2.2 실험방법
 3. 결과 및 고찰
  3.1 시험편
  3.2 인장시험
  3.3 성능분석
 4. 결론
 후기
 참고문헌

• 김창수(경북대학교 기계공학부 교수) | S. C. Kim
• 민병로(성균관대학교 생명공학부 겸임교수) | B. R. Min
• 김종택(김천폴리텍 VI대학 산업설비학과 교수) | J. T. Kim