- Title
- Evaluation of structural integrity of laser formed steel sheets for possible load bearing applications
- Creator
- Akinlabi, Stephen A., Shukla, M.
- Subject
- Structural integrity, Laser forming, Microstructural evolution
- Date
- 2016
- Type
- Article
- Identifier
- http://hdl.handle.net/10210/215436
- Identifier
- uj:21417
- Identifier
- Citation: Akinlabi, S.A & Shukla, M. 2016. Evaluation of structural integrity of laser formed steel sheets for possible load bearing applications.
- Description
- Abstract: Steel is a well-known material for various manufacturing applications because of its unique properties such as great formability and durability, good tensile and yield strength and good thermal conductivity. This paper reports on the evaluation of the structural integrity of laser formed steel sheets for possible load carrying applications. The tensile tests conducted revealed 46% elongation while the yield strength of the laser formed components were enhanced with about 18%. Furthermore, elongated grain structures were observed in the micrographs of the three components formed at the maximum parameter setting. It was revealed that this elongation varied indirectly to the applied line energy. The measured grain sizes further showed that the components formed at the optimized maximum process parameter window were characterized by smaller grain structures with about 60% of the grain sizes of the parent material. A progressive increase in the micro Vickers hardness of about 40% was also observed in the three laser formed components in comparison to the parent material. The analysis of the residual stresses conducted in this study revealed that the changes in the residual stresses are a function of the process condition to which the samples were subjected...
- Language
- English
- Rights
- ©2016, authors
- Full Text
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