However, a big issue in this process is defects, especially keyhole pores, which are tiny holes that form when the laser melts too deeply. These pores weaken the final object, which is a ...

Researchers were able to demonstrate how well their real-time acoustic monitoring of laser weld seams works. With almost 90 percent reliability, they detected the formation of unwanted pores that ...

Defect and pore concentration simulation in an amorphous alloy of boron and cobalt Simulation of local microstructure of amorphous alloys Peer-Reviewed Publication ...

The goal is to create a system that not only detects defects but can enable repairs during 3D printing. An artificial intelligence-driven approach established by advanced characterization (X-ray and ...

Nov. 27, 2020 — Research reveals how pores form during metals additive manufacturing and become defects trapped in solidifying metal. The practical value of this research is that it can inform ...

With an X-ray experiment at the European Synchrotron ESRF in Grenoble (France), Empa researchers were able to demonstrate how well their real-time acoustic monitoring of laser weld seams works.