Detecting Porosity Defects in 3D-Printed Metal Parts

A research team led by Tao Sun, Associate Professor, University of Virginia, has made new discoveries that can expand additive manufacturing in industries that rely on strong metal parts, including aerospace. The research addresses the issue of detecting the formation of keyhole pores, a major defect in laser powder bed fusion (LPBF), a common additive manufacturing technique introduced in the 1990s.