Laser Powder Bed Fusion, Direct Energy Deposition and Hybrid Manufacturing of Metals and Alloys
A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Manufacturing Processes and Systems".
Deadline for manuscript submissions: closed (10 April 2023) | Viewed by 1756
Special Issue Editor
Interests: additive manufacturing; metrology; micro-manufacturing; high-performance machining
Special Issues, Collections and Topics in MDPI journals
Special Issue Information
Dear Colleagues,
Laser Powder Bed Fusion (L-PBF) and Direct Energy Deposition (DED) are nowadays versatile additive manufacturing processes with the capability to produce high-quality parts at high productivity rates and can be combined with subtractive manufacturing (machining processes) to improve surface characteristics. The industry is exponentially adopting these additive and hybrid manufacturing processes to fabricate functional parts for structural, biomedical, aerospace, and automotive applications among others. Nevertheless, the introduction of L-PBF and DED parts is still experiencing barriers to reach acceptable levels of product integrity, with high-performance functions and under strict service requirements. For example, the manufacturing of certain parts of aeronautical structures is still far from providing good reliability and said parts are prone to failure under certain fatigue and stress conditions. The causes are several but among them one can count the lack of fusion at different regions of the build, poor surface finish and excess of porosity, even after post-treatment processes such as hot isostatic pressing (HIP). The aim of this Special Issue is to collect valuable research in different fields affecting process and product integrity in L-PBF, DED and hybrid manufacturing, focusing on surface integrity, crystallography evolution, porosity, anisotropy effects, process calibration and laser–material interaction effects. Other research fields are welcome if their approach is related to the L-PBF, DED and hybrid manufacturing processes and product enhancement.
Dr. Hector R. Siller
Guest Editor
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Keywords
- laser powder bed fusion
- direct energy deposition
- hybrid manufacturing
- porosity
- anisotropy
- surface integrity
- laser–material interaction
