Effects of Gravity and Non-Perpendicularity during Powder-Fed Directed Energy Deposition of Ni-Based Alloy 718 through Two Types of Coaxial Nozzle [PDF]
, 2020 The consequences of gravity and the nozzle inclination angle in the powder-fed Directed Energy Deposition (DED) process were examined in this study.
Alberdi, Amaia +3 more
core +2 more sources
Improving tool wear and surface covering in polishing via toolpath optimization [PDF]
Journal of Materials Processing Technology, 2013 Abstract Polishing operations are commonly carried out manually, thus inducing variability on the surface quality. The aim of this paper is to automate the polishing of free-form surfaces in order to obtain high quality surfaces. Tool wear and toolpath surface covering have a great impact on surface properties.
Chaves-Jacob, Julien +2 more
openaire +1 more source
Process Parameters Optimization of Thin-Wall Machining for Wire Arc Additive Manufactured Parts
Applied Sciences, 2020 Additive manufacturing (AM) is an arising production process due to the possibility to produce monolithic components with complex shapes with one single process and without the need for special tooling.
Niccolò Grossi +3 more
doaj +1 more source
Simplified numerical approach for incremental sheet metal forming process [PDF]
, 2014 The current work presents a finite element approach for numerical simulation of the incremental sheet metal forming (ISF) process, called here ‘‘ISF-SAM’’ (for ISF-Simplified Analysis Modelling).
BATOZ, Jean-Louis +4 more
core +6 more sources
Postprocessor for Verification of Robot Movements with Additional Axis after Toolpath Optimization
Procedia CIRP, 2021 Abstract This paper discusses a postprocessor for milling robots connected to additional linear machine axes where toolpath is optimized with respect to variable properties of the robot in its workspace. A toolpath optimization method is proposed based on an experimentally verifiedrobot stiffness model.
Tomas Kratena +3 more
openaire +1 more source
Thickness control in a new flexible hybrid incremental sheet forming process [PDF]
, 2017 Incremental sheet forming is a cost-effective process for rapid manufacturing of sheet metal products. However, incremental sheet forming also has some limitations such as severe sheet thinning and long processing time.
Bin Lu +10 more
core +1 more source
Advanced Materials Technologies, EarlyView.This critical review presents a comprehensive roadmap for the precision 3D printing of cellulose. Quantitative correlations link ink formulation and rheological properties to print fidelity and final material performance. This framework guides the development of advanced functional materials, from biomedical scaffolds to electromagnetic shielding ...
Majed Amini +3 more
wiley +1 more source
Fixture Optimization in Turning Thin-Wall Components
Machines, 2019 The turning of thin-walled components is a challenging process due to the flexibility of the parts. On one hand, static deflection due to the cutting forces causes geometrical and dimensional errors, while unstable vibration (i.e., chatter) could ...
Lisa Croppi +3 more
doaj +1 more source
Hydrogel Confinement Strategies for 3D Cell Culture in Microfluidic Systems
Advanced Materials Technologies, EarlyView.Hydrogel confinement structures are key to organizing 3D cell cultures in microfluidic devices. This review classifies five structural strategies (micropillar, phaseguide, porous membrane, stepped‐height, and support‐free) and examines their trade‐offs alongside fabrication methods.
Soohyun Kim, Min Seok Lee, Sung Kyun Lee
wiley +1 more source
Alternative Trajectories for the Optimization of Trochoidal Milling in Hardened Steel [PDF]
Materials ResearchThis study investigates the machining performance of trochoidal toolpaths in hardened AISI 4340 steel. Three toolpaths—conventional, horizontal semi-ellipse, and vertical semi-ellipse—were analyzed in terms of machining time and machining forces under ...
Kaciê K.A. Trindade +5 more
doaj +1 more source