About this Abstract |
Meeting |
MS&T22: Materials Science & Technology
|
Symposium
|
Additive Manufacturing of Metals: Microstructure, Properties and Alloy Development
|
Presentation Title |
Laser Powder Bed Fusion Process: Effect of Laser Remelting/Scanning/Pulsing/Shaping |
Author(s) |
Prashanth Konda Gokuldoss |
On-Site Speaker (Planned) |
Prashanth Konda Gokuldoss |
Abstract Scope |
The laser-based powder bed fusion process (LBPF) is gaining rapid attention due to its ability to process a wide spectrum of materials with intricate shapes and complex geometries directly from 3D CAD data with improved/similar properties as their conventional counterparts. The main drawbacks in this SLM process are the presence of both internal (dislocation density, stacking faults, twins, etc.) and external (porosity, unmelted particles, etc.) that may lead to premature failure in these SLM processed materials. Both these internal and external defects were controlled by the process parameters including the laser power, laser scan speed, etc. It has been demonstrated that laser pulsing and or laser shaping also influence the microstructure and properties. Accordingly, this abstract will focus on the effect of laser re-melting/scanning/shaping/pulsing on the formation of microstructures and in turning their properties, which can be effectively used to tune the properties of LPBF fabricated materials. |