7 / 8
allied
academies
April 15-16, 2019 | Frankfurt, Germany
Applied Physics & Laser, Optics and Photonics
International Conference on
Page 20
Materials Science and Nanotechnology | Volume: 3
S
elective laser melting (SLM) is one of the
most promising additive manufacturing (AM)
processes. Each single track in SLM may affect the
forming defects and the resultant relative density
of final SLM parts. A three-dimensional randomly
distributed powder bed model of Ti6Al4V was
established to study the forming process of single
track. Thenumericalmodel is verifiedbyexperimental
tests. The numerical results show that—the typical
metallurgical defects associated with SLM such as
balling effect is significantly affected by line energy
density (LED). The optimal LED range is given by
numerical and experimental results.
Speaker Biography
Zhengying Wei has completed her PhD in 2003 from Xi’an Jiaotong
University, China. She is the professor and doctorial tutor at Xi’an Jiaotong
University, China. Her research interests are in the microstructure
designing and rapid manufacturing. In 2008, she won the province
award for Youth Science and Technology. She is also the author of several
international publications.
e:
zywei@mail.xjtu.edu.cnZhengying Wei
Yu Xiang
and
Junfeng Li
Xi'an Jiaotong University, China
Forming and defect analysis for single track scanning in selective
laser melting of Ti6Al4V