... melt pool size do not have significant statistical correlations. However, a preliminary finding suggests users may identify the extremely large overhang dross formation by monitoring melt pool features in multiple layers above the overhang. additive manufacturing powder bed fusion overhang...

... Abstract Metal additive manufacturing (AM) processes entail complex physical phenomena, leading to intricate process-structure-property (PSP) relationships. As PSP relationships are highly linked with thermal fields in metal AM, the appropriate selection of process parameters and their real...

... Abstract Laser Powder Bed Fusion (L-PBF) is one of the most widely applied additive manufacturing processes to fabricate metallic parts with high geometric accuracy. Due to the highly concentrated heating power and fast scanning speed used in the L-PBF process, voids could be produced during...

... Abstract The reduction and neutrality of carbon emissions have emerged as major concerns spanning various stages of product life cycles. Additive manufacturing (AM), with its process efficiency and decentralized production characteristics, has been seen as an enabler for more sustainable...

... Abstract Material Extrusion additive manufacturing (MatEx) based on Fused Filament Fabrication (FFF) enables inexpensive bottom-up fabrication of thermoplastics and thermoplastic composites for structural, biomedical, energy, and tooling applications. The to-scale realization of these lab-scale...

... Abstract The depowdering process in Binder Jetting Additive Manufacturing is indispensable for the integrity of 3D-printed objects, necessitating the removal of excess powder from their surfaces. However, this step poses a formidable challenge to the productivity of powder-based AM...

... Abstract Thermoelectric generators convert heat energy to electricity and can be used for waste heat recovery, enabling sustainable development. Selective Laser Melting (SLM) based additive manufacturing process is a scalable and flexible method that has shown promising results in manufacturing...

... Abstract With the rapid growth of the manufacturing industry, laser-based metal additive manufacturing, such as laser powder bed fusion, has the potential to usher in a revolution. However, its widespread adoption is contingent on the resolution of several challenges. A significant challenge...

.... Against this background, a prototype tool holder was designed and additively manufactured in this work. The tool holder allows to vary the nozzle cross-section area without changing the cooling channels and the inclination of the nozzles. Experimental results revealed the optimal cross-section area...

... Abstract Additive manufacturing defects are often cited as being detrimental to the final product and significant effort has been expended to mitigate said defects. However, in applications where failure of the component is a necessity to prevent undo wear and tear, these defects may...

... additive manufacturing process using real-time data from a high-speed imaging meltpool sensor. The laser wire directed energy deposition process combines the advantages of powder directed energy deposition and other wire-based additive manufacturing processes, such as wire arc additive manufacturing...

...Proceedings of the ASME 2024 19th International Manufacturing Science and Engineering Conference MSEC2024 June 17-21, 2024, Knoxville, Tennessee MSEC2024-125262 BRIEF PAPER: EVALUATING EFFECTS OF ULTRAVIOLET EXPOSURE STRATEGIES ON MULTI-MATERIAL INTERFACES IN DIRECT INK WRITE ADDITIVE MANUFACTURING...

... Abstract This work concerns process monitoring in the laser powder bed fusion additive manufacturing process. In this work, we developed and applied a novel in-situ solution for process stability monitoring and flaw detection using acoustic emission sensing. Current process monitoring methods...

... Abstract Among the wide range of additive manufacturing — or “three-dimensional (3D) printing” — technologies, “material jetting” approaches are distinctively suited for multi-material fabrication. Because material jetting strategies, such as “PolyJet 3D printing”, harness inkjets that allow...

.... Scale-inspired structures have also been integrated into architecture and building materials. Despite some examples, there has been limited exploration of bio-inspired design of scales, which have received a lot of attention with the progress made in computational design and additive manufacturing. We...

... Abstract Laser Powder Bed Fusion (L-PBF) is a renowned additive manufacturing technique, celebrated for its capability to construct intricate metal components with remarkable precision. However, one of the main challenges with L-PBF is the formation of complex microstructures, which can...

... and fast production, additive manufacturing (AM) emerges as a promising candidate for cost-effective mold design and fabrication. This innovative approach not only circumvents the high initial investment of tooling associated with traditional injection molding but also offers significant advantages...

... Abstract Rapid characterization of mechanical properties and material structure of additively manufactured (AM) components via non-destructive techniques (NDT) is crucial for their wider adoption. However, accurate characterization of AM components using NDT remains a challenge. To this end...

... it on an Ender 3 desktop FFF 3D printer. A fault detection accuracy of over 95% is achieved. Furthermore, MScan’s robustness to lighting variations is experimentally demonstrated. fault detection additive manufacturing fused filament fabrication non-contact sensor laser triangulation Proceedings...

... Abstract Warpage in Additive Manufacturing (AM) is one of the major unsolved problems, especially with Fused Filament Fabrication (FFF). As layers cool, internal stresses cause non-uniform shrinkage, resulting in undesirable shapes and therefore limited applicability in precision industrial...