College - Author 1
College of Engineering
Department - Author 1
Mechanical Engineering Department
Degree Name - Author 1
BS in Mechanical Engineering
College - Author 2
College of Engineering
Department - Author 2
Mechanical Engineering Department
Degree - Author 2
BS in Mechanical Engineering
College - Author 3
College of Engineering
Department - Author 3
Materials Engineering Department
Degree - Author 3
BS in Materials Engineering
Date
6-2016
Primary Advisor
Xuan Wang, College of Engineering, Industrial and Manufacturing Engineering Department
Additional Advisors
Christoph Maurer, College of Engineering, Materials Engineering Department
Abstract/Summary
The metallic additive manufacturing process known as selective laser melting requires highly spherical, normally distributed powder with diameters in the range of 10 to 50 microns. Previous observations have shown a degradation in powder quality over time, resulting in unwanted characteristics in the final printed parts. 21-6-9 stainless steel powder was used to fabricate test parts, with leftover powder recycled back into the machine. Powder samples and test specimens were characterized to observe changes across build cycles. Few changes were observed in the physical and mechanical properties of the specimens, however, there were indications of chemical changes across cycles. Potential areas of research were identified for future investigation into this subject.
URL: https://digitalcommons.calpoly.edu/mesp/415
Included in
Applied Statistics Commons, Manufacturing Commons, Materials Chemistry Commons, Metallurgy Commons, Other Materials Science and Engineering Commons, Structural Materials Commons