Influence of processing parameters on different metal alloys processed by PBF-LB using a laser with programmable shape and beam diameter

• Grant number: 24/21005-5
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: April 01, 2025
• End date: March 31, 2026
• Field of knowledge: Engineering - Materials and Metallurgical Engineering - Physical Metallurgy
• Principal Investigator: Éder Sócrates Najar Lopes
• Grantee: Gabriel Janowski Pozzer
• Host Institution: Faculdade de Engenharia Mecânica (FEM). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
• Associated research grant: 18/06045-0 - Advanced manufacturing: exploration of methods for control and validation of powder bed fusion process in additive manufacturing process, AP.JP

Abstract

Metal additive manufacturing (AM) is a recent manufacturing process that has been evolving constantly in recent years. Various approaches have been proposed to reduce printing time and increase the productivity of this method, making it cheaper and more attractive for industrial use. This project aims to optimize laser fusion processes in AM, focusing on using a programmable diameter and shape laser beam to process the H13 and M300 steels and the CuCrZr alloy. Combining computational simulation and experimental validation, the main goal is to develop technical sheets of the ferrous materials for Ansys Additive software while defining optimized processing parameters for all the alloys. The study will evaluate the influence of beam shape and diameter, platform temperature, and other parameters on melt pool morphology and microstructure, in addition to developing a predictive model to simulate melt pool formation and temperature distribution. The results will contribute to the simulation of new material usage, aiding in the characterization and understanding of the evolution of melt pool morphology and size, as well as evaluating the technical and economic feasibility of using variable diameter and shape lasers in AM.