Lorenzo Pedrolli- PhD
- Professor (Assistant) at University of Deusto
Lorenzo Pedrolli
- PhD
- Professor (Assistant) at University of Deusto
CFD and DEM Study of metallic powder flow characteristics in Laser Metal Deposition
About
10
Publications
2,429
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19
Citations
Introduction
Current institution
Additional affiliations
January 2025 - present
October 2021 - present
Position
- PhD Student
Description
- PhD student in the 6i-DIRS project, within the European Commission´s Marie Skłodowska-Curie COFUND Action. I will be working on Computational Fluid Dynamics and Discrete Element Modelling Study of metallic powder flow characteristics in Laser Metal Deposition.
February 2018 - present
Position
- Lecturer
Description
- I teach the course of Oleodynamics an Pneumatics as an external professional.
Education
September 2012 - July 2015
September 2008 - July 2012
Publications
Publications (10)
Through additive technologies, a multitude of functional parts can be manufactured thanks to the versatility of the manufacturing process. Some of these advantages include the ability to create rapid metal prototypes, the option to fabricate with various materials, flexibility in production, and cost savings. This technology is constantly evolving...
Many industrial processes require a consistent material flow in the form of powders, typically achieved through pneumatic conveying. This work presents a dataset of high-speed video recordings capturing the horizontal pneumatic conveying of metallic powders in thin capillary pipes. Additionally, pressure and photodiode recordings are included. The...
Directed Energy Deposition (DED) processes necessitate a consistent material flow to the melt pool, typically achieved through pneumatic conveying of metal powder via thin pipes. This study aims to record and analyze the multiphase fluid–solid flow. An experimental setup utilizing a high-speed camera and specialized optics was constructed, and the...
Directed Energy Deposition (DED) processes necessitate a consistent material flow to the melt pool, typically achieved through pneumatic conveying of metal powder via thin pipes. This study aims to record and analyze the multiphase fluid-solid flow. An experimental setup utilizing a high-speed camera and specialized optics was constructed, the flow...
![Injection rates for gas [·] g and particles [·] p](publication/378121380/figure/tbl1/AS:11431281223176739@1707571992918/Injection-rates-for-gas-g-and-particles-p_Q320.jpg)
Pneumatic conveying of fine powders is essential for many industrial processes, including Laser Metal Deposition (LMD), a Direct Metal Additive Manufacturing (DMAM) technology that builds solid objects layer-by-layer using a laser to melt metal powder. To optimize the process, it is necessary to have a correct understanding of the powder’s behaviou...
The Johnson-Kendall-Roberts (JKR) contact model is widely accepted for the elastic adhesive contacts of particles. In this work, we present a novel interpretation of the JKR model that allows for the development of a test procedure with practical hardware called the Kinetic Adhesion Test.
The Kinetic Adhesion Test is based on the balance between k...
A new hardware is described to quantify the particle surface energy by assuming that the Johnson Kendall and Roberts theory of elastic-adhesive contacts is applicable. The setup is used in the active section of the measurement, where newly designed elements provide the sharp impact needed to detach the particles under the action of their own kineti...
In this work, a novel optimization approach is used to define the shape of a flywheel for energy storage. The procedure acts on a two-dimensional axisymmetric finite element method model, in which many parameters are used to describe the geometry. The optimization is performed by an evolutive system method, whereby the population’s genome is descri...
An evolutive system optimization strategy is presented and applied to a real-case scenario for the optimization of a flywheel for energy storage.
This is a report of a work made for a course on Fluidodynamics. It's in italian, reviewed by our professor.
This work analyzes an thhe pump originally designed by Nikola Tesla, exploring the application possibilities. An explanation of the working principle is given. Strong points are discussed, as well as its critical aspects, in order to be prepa...
