Results 41 to 50 of about 8,050 (217)
On the interplay of microstructure and residual stress in LPBF IN718 [PDF]
Journal of Materials Science, 2020 AbstractThe relationship between residual stresses and microstructure associated with a laser powder bed fusion (LPBF) IN718 alloy has been investigated on specimens produced with three different scanning strategies (unidirectional Y-scan, 90° XY-scan, and 67° Rot-scan).
Itziar Serrano-Munoz +9 more
openaire +4 more sources
, 2023 This work discusses the combined effect of the microstructure and geometry on the deformation modes and energy-absorbing characteristics of laser powder bed fusion (LPBF)-manufactured Inconel 718 (IN718) hexagonal honeycomb structures tested under quasi ...
Paul Wood +4 more
core +1 more source
Influence of LPBF-Surface Characteristics on Fatigue Properties of Scalmalloy® [PDF]
Metals, 2021 Laser powder bed fusion (LPBF) has indisputable advantages when designing new components with complex geometries due to toolless manufacturing and the ability to manufacture components with undercuts. However, fatigue properties rely heavily on the surface condition.
Jens Musekamp +5 more
openaire +2 more sources
Penelope: A Novel Prototype for In Situ Defect Removal in LPBF
JOM, 2020 A new laser powder bed fusion prototype for in situ monitoring of defects and in situ and inline flaw removal has been developed at and patented by Politecnico di Milano (Italy). This prototype allows the identification of a defective layer thanks to an innovative in situ monitoring approach that combines image and video-image data in the visible and ...
Colosimo B. M. +3 more
openaire +2 more sources
Additive Hybridfertigung mittels LMD und LPBF für Inconel 718
, 2022 The additive manufacturing processes Laser Metal Deposition (LMD) and Laser Powder Bed Fusion (LPBF) are established processes in turbomachinery manufacturing for new part production as well as for repair applications. The application spectrum of each of
Alkhayat, Moritz
core +1 more source
Combination of LPBF and welding: A practical application Manufacturing of the epee for Dominique Perrault [PDF]
, 2023 One of the limiting factors of the actual LPBF machines is the size of their build chamber, their productivity, and the process stability. The welding of LPBF parts can be used to overcome these problems, but at the moment it is mostly shown on ...
Dizdar, Guel +2 more
core +1 more source
Applied Sciences, 2022 Laser powder bed fusion (LPBF) provides a rapid and cost-effective solution for fabricating metallic parts with near full density and high precision, strength, and stiffness directly from metallic powders. In LPBF, process variables are widely recognised
Zuyu Li +3 more
doaj +1 more source
Optimization of process parameters for laser powder bed fusion of K439B superalloy
Cailiao gongchengK439B nickel-based alloy is a novel high-temperature material capable of operating at 800 ℃， which has been widely used in critical components such as combustion chamber housings for aerospace engines.
SONG Jialong +7 more
doaj +1 more source
Scan path resolved thermal modelling of LPBF
Additive Manufacturing Letters, 2022 Laser powder bed fusion product quality depends on process parameters (e.g. laser power, scan speed, etc.) and on the scan strategy. The accuracy by which a feature outline is printed defines the surface finish, workpiece fatigue behavior and the extent of post processing needed to achieve surface quality specifications. In this paper we develop a semi-
Emil Duong +4 more
openaire +2 more sources
Advanced Engineering Materials, EarlyView.A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi +3 more
wiley +1 more source