| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Microstructural and Mechanical Long-term Stability of AM Materials
|
| Presentation Title |
Investigation of M2 Tool Steel Fabricated by Selective Laser Melting Compared to Binder Jetting: Microstructural, Mechanical, and Tribological Insights |
| Author(s) |
Amit Choudhari, Manoj Mugale, Sanoj Karki, Sambhaji Kusekar, Satyavan Digole, Tushar Borkar |
| On-Site Speaker (Planned) |
Amit Choudhari |
| Abstract Scope |
SLM and BJ are promising additive manufacturing technologies for industrial applications, yet they are often plagued by defects that compromise printed part quality. This study explores the feasibility of processing M2 tool steel using SLM, focusing on optimizing process parameters to improve mechanical and tribological properties. Various combinations of volumetric energy density(VED), laser powers(100-180W), scanning speeds(200-1600 mm/s), and layer thicknesses(20- 40 µm) were evaluated. Preliminary results show that warpage, cracking, and base plate separation are strongly influenced by VED, with warpage increasing at VED > 70J/mm³, relative densities falling below 98% at VED < 37J/mm³, and the optimal VED range being 40-60J/mm³. Microstructural analysis revealed non-uniform carbides (MC, M2C, M6C) distribution. Consequently, SLM-produced samples had hardness ranging from 650 to 750 HV, while BJ-produced parts exhibited 600 to 970 HV. This talk will discuss strategies to enhance SLM and BJ part quality, along with microstructure, mechanical, and wear properties |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Iron and Steel, Mechanical Properties |