Improving mechanical properties of additive manufactured AZ31 by mechanical rolling
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Senthilvelan Veerasamy
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Rameshbabu Sankaran
Abstract
The mechanical performance of AZ31, a popular aerospace structural material, manufactured using CMT-WAAM was studied in this paper. A wall of 70 × 200 × 4 mm was built by layer-by-layer deposition of 4 mm thick beads. The influence of rolling along the direction of welding on hardness, tensile strength and residual stress was investigated and compared with the control build fabricated using “synergic” parameters recommended by Fronius, Austria. The specimens extracted from the AM (Additive Manufacturing) built walls were subjected to cross-section reduction up to 22.5% compared to control specimens. The rolled specimens displayed up to 10% increase in the tensile strength values compared to control specimens and a generally lower elongation value. A similar trend was observed in the hardness examination as well. A peak hardness of 77 HV0.5 was observed in the specimen subjected to 22.17% reduction. The rolled samples exhibit a 14.32% reduction in residual stresses.
Acknowledgements
The authors acknowledge and thank Welding Research Cell, Sri Venkateswara College of Engineering, Sriperumbudur for all support required to carry out this research.
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Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
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Research funding: None declared.
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Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
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Articles in the same Issue
- Frontmatter
- Original Papers
- Modeling the band gap of spinel nano-ferrite material using a genetic algorithm based support vector regression computational method
- Influence of surfactant concentration on structural properties and corrosion behaviour of electrodeposited Ni–SiO2 nanocomposite coatings
- Synthesis of RGO/γ-Fe2O3 nanocomposite for the removal of heavy metals from aqueous solutions
- Synthesis of nickel oxide nanoparticles as an agent for antibacterial and wastewater remediation applications by calcination
- Synthesis and efficient electrocatalytic performance of Bi2O3/Dy2O3 nanoflakes
- Finite element assisted self-consistent simulations to capture texture heterogeneity during hot compression
- Improving mechanical properties of additive manufactured AZ31 by mechanical rolling
- News
- DGM – Deutsche Gesellschaft für Materialkunde
