레이저 기반 표면 열처리 및 클래딩을 이용한 SUS 316 판재 성형성 향상

다국어 초록 (Multilingual Abstract)

We propose a practical method for increasing formability of a sheet metal plate using laser heat treatment (LHT) and cladding process. In this work, two kinds of process such as laser-induced heat treatment and cladding were utilized to evaluate the effect on formability of SUS316 sheets with different thickness of 1 and 3 mm. By using a vertically line-patterned tensile specimen that was LHTed or cladded on its surface, the process parameters of each surface treating method were studied and optimized. Through the basic test, we knew that the laser power of 900 W and scanning speed of 500 mm/min was the best condition for increase of formability. As the treatment results, ultimate tensile strength and elongation were increased as approximately 2.1 and 7.0%, respectively. To verify the usefulness of this work in industrial cases, we conducted a bulging test using with and without LHTed SUS316 sheet metal blanks. The results show that the bulging height of LHTed sheet was increased by 73% compared to that of the original one.

목차 (Table of Contents)

• ABSTRACT
• 1. 서론
• 2. 기계적 물성 실험
• 3. 성형성 해석
• 4. 성형성 실험
• 5. 결론
• REFERENCES

참고문헌 (Reference)

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