Mechanical and Microstructural Properties of Managing Steel Samples Produced by Additive Manufacturing (3D Printing)
Abstract
In recent years, additive manufacturing (AM) techniques have been compared to those of traditional manufacturing (TM) in order to compare and contrast part quality. Selective Laser Melting (SLM) is an AM technique which uses a standard triangle language (STL) file to 3D print a part layer by layer. A high-power laser is used to melt metal particles to obtain fully dense parts. This work studied the mechanical and microstructural properties of SLM parts by performing tensile and microhardness tests, along with optical and scanning electron microscopy (SEM) microscopy. Parts produced via SLM were found to be comparable to those produced by TM and to contain adequate mechanical properties. Feature quality of SLM parts was studied and mechanical and microstructural properties observed. Microhardness tests and optical microscopy revealed that feature quality increased with feature size. Furthermore, print parameters require optimization to produce adequate features and parts containing minimum porosity.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 2020
- Accession Number
- AD1114634
Entities
People
- Chantel Lavender
Organizations
- Naval Postgraduate School