IPC, France
Fabrice Lion
Biography
I did my studies at INSA Lyon where I graduated in the material science programs. I then decided to began a PhD program and I am currently doing my project on additive manufacturing of high strength steels by laser powder bed fusion and fused pellet fabrication technologies. I am doing a CIFRE program with a company called IPC in collaboration with INSA Lyon and ECAM Lassale.
Conferences
Room |
Date |
Hour |
Subject |
|---|---|---|---|
| Room 7 |
25-03-2026 |
5:20 pm – 5:40 pm |
13 Processability and microstructure of M2 tool steel produced by laser powder bed fusion |
Conferences Details
13 Processability and microstructure of M2 tool steel produced by laser powder bed fusion
LPBF printability of high hardness tool steel is challenging due to high cracking risks. This study investigates process parameters of M2 tool steel to establish a printability map. Volume energy density (VED) of around 80-100 J/mm3 can produce high-density parts ( 99.99%) without cracking. Pore size and sphericity were characterized alongside major phases (residual austenite/martensite) to determine the main factor leading to cracking. In this study, low VED (40-60 J/mm3) promote residual austenite, a lower hardness (620 HV), high porosity and cracking. Intermediate VED with less residual austenite, a higher hardness (700 HV) and high density are less susceptible to cracking. Therefore, cracking risks are mainly governed by pore size and number rather than as-built hardness.
Keywords: LPBF – Tool Steel – Processability – Cracking susceptibility
