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논문 기본 정보

자료유형
학술저널
저자정보
Amrinder Singh (Wayne State University) Abhishek Ramakrishnan (Wayne State University) Guru Dinda (Wayne State University)
저널정보
대한용접·접합학회 대한용접·접합학회지 大韓熔接·接合學會誌 第35卷 第4號
발행연도
2017.8
수록면
67 - 73 (7page)

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Recently, Al-Si alloys samples have been manufactured at lab scale using various additive manufacturing processes, but so far there is no literature available to investigate the feasibility of fabricating Al-Si alloy component for automotive component applications using Direct Laser Metal Deposition (LMD) technique. This paper deals with the practical challenges of building single wall and block deposition (cuboid shapes) of eutectic Al-Si alloy using direct laser metal deposition process for developing automotive applications. Two scanning pattern, hatch pattern and single wall pattern were chosen to study the effect of scanning direction on mechanical properties as well as microstructural evolution. Microstructural investigation of single wall and block deposition using optical and scanning electron microscopy revealed a 99.9% dense component with very fine hypoeutectic microstructure. Tensile test sample extracted from block deposition showed an impressive elongation of 9% with an ultimate tensile strength of 225 MPa and tensile test sample of single wall showed an average elongation of 9.4% with an ultimate tensile strength of 225 MPa. This investigation revealed that direct laser metal deposition could successfully print the eutectic Al-Si alloy bracket on shock tower hood without any distortion or bending.

목차

Abstract
1. Introduction
2. Experimental procedures
3. Results and Discussion
4. Conclusion
Acknowledgement
References

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