Thesis title: Additive manufacturing of structural elements via Laser Metal Deposition: Microstructure, Mechanical and Performance characterization
With the recent advances and investment in additive manufacturing technologies, laser metal deposition (LMD) techniques have become an alternative to conventional manufacturing methods. The advantages of metal additive manufacturing include the design of distinguishing material microstructures and properties, energy consumption reduction to fabricate complex geometrical components and efficient repairments of damaged metal components, all within a “one-step” fabrication process. Such advantages have been driving the innovation for high-end applications in the aerospace, medical, automotive, resources and consumer product sectors. Among the LMD alloys possibilities, tool steels attract attention due to its highly applicability in industry and improved mechanical performance opportunities via microstructure tuning. Still, the lack of quality assurance and poor mechanical performance due to microstructural discontinuities have been represented the principal barrier that prevents manufacturers from adopting additive manufacturing technologies for tool steels. This doctoral thesis will investigate the influence of Laser Metal Deposition strategies and parameters on the microstructure, mechanical properties and performance of tool steel structures obtained via laser cladding by powder injection.
Andre Hatem is an MSc Mechanical Engineer from the Pontifical Catholic University of Parana, Brazil. He has previous experience as an Application and Project Engineer in the manufacturing industry. Andre has impassioned by the scientific research thanks to an abroad year in Australia granted by the “Science without Borders” Brazilian mobility program. Since that year, Andre has participated in a CSIRO project, completed a Masters, published and presented his work in low friction thin hard coatings at international scientific conferences.