Effect of Direct Metal Laser Sintering Process Parameters on Dimensional Accuracy of AlSi10Mg Parts

Bağcı H. B., Sağbaş B., Durakbaşa M.

in: DAAAM International Scientific Book 2020, BRANKO KATALINIC, Editor, DAAAM International, Vienna, pp.171-180, 2020

  • Publication Type: Book Chapter / Chapter Research Book
  • Publication Date: 2020
  • Publisher: DAAAM International
  • City: Vienna
  • Page Numbers: pp.171-180
  • Editors: BRANKO KATALINIC, Editor
  • Yıldız Technical University Affiliated: Yes


Additive manufacturing (AM) is a rapidly growing technology that provides

opportunity to generate complex geometries, layer-by-layer without any tool, die and

fixture. AM was used just for rapid prototyping at first while it has been started to use

for generating near net shaped final product in these days. However, dimensional

accuracy is not at the desired level for the functional parts. Type of the AM method and

process parameters have important effect on dimensional deviations of the AM parts.

In this research study it is aimed to determine effect of process parameters on

dimensional accuracy of AlSi10Mg screw parts manufactured by Direct Metal Laser

Sintering (DMLS) method. Taguchi L9 orthogonal array was used for experimental

design. Laser power, scan speed, beam offset and build angle process parameters were

changed in three different levels. Dimensional measurements were taken by coordinate

measuring machine (CMM). Results were revealed that, process parameters had

important effects on dimensional accuracy of DMLS manufactured parts.