...Lucas M. Morand; Garrett J. Pataky Purpose The inherent strain method for laser powder bed fusion additive manufacturing ( AM ) allows for rapidly simulating process-induced distortion while still retaining the influence of thermomechanical physics. However, previous implementation of a single...

...Kanishka Chamod Surendra Archaryagie; Yunlong Tang; Chun Kit Sit; Qiong Wu Purpose This study aims to investigate the influence of protrusions, typical in-process defects arising on features like thin walls, overhangs and lattices on powder spreading quality in laser powder bed fusion ( LPBF...

...Tanja Stiller; Eliza Truszkiewicz; Theresia Schrank; Bernd Erwin Haar; Gerald Meier; Wolfgang Kraschitzer; Gerald Pinter; Jürgen Lackner; Michael Berer Purpose A key characteristic of powder bed fusion for polymers is that also the non-processed powder in the powder bed is exposed to elevated...

...; KPI = Key performance indicator; LS = Laser sintering; MEX-TRB = Material extrusion – thermal reaction bonding; MJF = Multi jet fusion; PBF-IrL = Powder bed fusion – infrared light; PBF-LB = Powder bed fusion – laser based; PR = Packing ratio; STL = Standard...

...Indrajeet Katti; Alistair Jones; Matthias Weiss; Dong Qiu; Joy H. Forsmark; Mark Easton Purpose Powder bed fusion-laser beam (PBF-LB) is a rapidly growing manufacturing technology for producing Al-Si alloys. This technology can be used to produce high-pressure die-casting (HPDC) prototypes...

...Raphael Timothy Steffen; Michael Robert Tucker; Francesco Sillani; Denis Schütz; Markus Bambach Purpose For additive manufacturing (AM) through laser-based powder bed fusion of polymers (PBF-LB/P), accurate characterization of powder flowability is vital for achieving high-quality parts. However...

... models, showcasing each one with its strengths and weaknesses. Furthermore, the improved Line Profiles model delivers compelling performance in detecting RCS. Powder bed fusion, the process in which thermal energy selectively fuses regions of a powder bed (Friel, 2015), is one of the most versatile...

...Sean McConnell; David Tanner; Kyriakos I. Kourousis Purpose Productivity is often cited as a key barrier to the adoption of metal laser-based powder bed fusion (ML-PBF) technology for mass production. Newer generations of this technology work to overcome this by introducing more lasers...

.... Taguchi method and response surface method were used to optimize process parameters (energy density, hatch spacing, scanning speed and beam diameter). Design/methodology/approach Laser powder bed fusion (LPBF) offers significant design freedom but suffers from residual stresses due to rapid melting...

... freedom, rapid product customization and manufacturing flexibility through its layer-by-layer technique. However, a very limited number of materials are printable because of rapid melting and solidification hysteresis. Melting-solidification dynamics in powder bed fusion are usually correlated...

... stainless steel PIM-quality powder and powder intended for powder bed fusion compounded with a recently developed environmentally benign binder. Rheological data obtained at the relevant temperatures were used to set up the process parameters of injection molding. The tensile and yield strengths as well...

...Markus Brummer; Karl Jakob Raddatz; Matthias Moritz Schmitt; Georg Schlick; Thomas Tobie; Rüdiger Daub; Karsten Stahl Purpose Numerous metals can be processed using the additive manufacturing process laser-based powder bed fusion of metals (PBF-LB/M, ISO/ASTM 52900). The main advantages...

...Christopher Stutzman; Andrew Przyjemski; Abdalla R. Nassar Purpose Powder bed fusion processes are common due to their ability to build complex components without the need for complex tooling. While additive manufacturing has gained increased interest in industry, academia and government, flaws...

...Jaydeepsinh M. Ravalji; Shruti J. Raval Purpose Selective laser melting and electron beam melting processes are well-known for the additive manufacturing of metal parts. Metal powder bed fusion (MPBF) is a common term for them. The MPBF process can empower the manufacturing of intricate shapes...

...Taylor Davis; Tracy W. Nelson; Nathan B. Crane Purpose dding dopants to a powder bed could be a cost-effective method for spatially varying the material properties in laser powder bed fusion (LPBF) or for evaluating new materials and processing relationships. However, these additions may impact...

... Emerald Publishing Limited Licensed re-use rights only 3D printing Color reproduction HP Jet Fusion 580 Multi-color Powder bed fusion Spectrophotometer Color plays an important role in how people perceive the world, as well as how particular products and systems are communicated...

..., the range of 1.3–2.0 m/s is a suitable gas field velocity during the multilaser powder bed fusion process. And printing quality using dual blow screens is better than single. Practical implications The optimization of gas field design and optimal gas velocity (1.3–2.0 m/s) applied during laser melting...

...Mehrshad Mehrpouya; Daniel Tuma; Tom Vaneker; Mohamadreza Afrasiabi; Markus Bambach; Ian Gibson Purpose This study aims to provide a comprehensive overview of the current state of the art in powder bed fusion (PBF) techniques for additive manufacturing of multiple materials. It reviews...

...Yue Zhou; El Mehdi Abbara; Dayue Jiang; Arad Azizi; Mark D. Poliks; Fuda Ning Purpose This study aims to uncover the multiscale relations among geometry, surface finish, microstructure and fatigue properties of curved-surface AlSi10Mg parts fabricated by powder bed fusion (PBF) additive...

...Jared Allison; John Pearce; Joseph Beaman; Carolyn Seepersad Purpose Additive manufacturing (AM) of thermoplastic polymers for powder bed fusion processes typically requires each layer to be fused before the next can be deposited. The purpose of this paper is to present a volumetric AM method...