Francesco Lambiase
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View article: Real-time electrical resistance monitoring for quality control in titanium Grade2-Aluminum 7075 dissimilar joints through electrically assisted joining
Real-time electrical resistance monitoring for quality control in titanium Grade2-Aluminum 7075 dissimilar joints through electrically assisted joining Open
This study establishes electrical resistance monitoring as a real-time quality control method for titanium-aluminum dissimilar joints produced via Electrically Assisted Joining (EAJ). Experiments systematically varied power (5–7 kW) and he…
View article: Design guidelines for FDM-processed PEEK lattice structures: mechanical properties, energy absorption under compressive loading, and process-induced defects
Design guidelines for FDM-processed PEEK lattice structures: mechanical properties, energy absorption under compressive loading, and process-induced defects Open
Additive manufacturing of polyetheretherketone (PEEK) through fused deposition modeling (FDM) enables the fabrication of complex lattice structures for aerospace and biomedical applications. However, a systematic understanding of topology-…
View article: Thermal history and microstructural evolution in MIG-Wire Arc Additive Manufacturing of low carbon steel: influence of key process parameters
Thermal history and microstructural evolution in MIG-Wire Arc Additive Manufacturing of low carbon steel: influence of key process parameters Open
This study investigates the influence of wire feed rate (WFR) and travel speed (TS) on Wire Arc Additive Manufacturing (WAAM) through a comprehensive experimental approach. Using an instrumented CNC machine with integrated voltage and curr…
View article: Thermal, microstructural, and mechanical characterization of early-stage deposition in wire arc additive manufacturing
Thermal, microstructural, and mechanical characterization of early-stage deposition in wire arc additive manufacturing Open
This study investigates the evolution of process conditions, microstructure, and mechanical properties during multi-layer wire arc additive manufacturing (WAAM), focusing on initial layers. Using a multi-sensor approach with electrical sig…
View article: In-plane transverse mechanical properties in material extrusion components: critical evaluation of sample preparation methodologies
In-plane transverse mechanical properties in material extrusion components: critical evaluation of sample preparation methodologies Open
Material extrusion (MEX) components exhibit anisotropic mechanical behavior due to their layer-by-layer fabrication process. While extensive research has focused on interlayer properties, the in-plane transverse mechanical behavior remains…
View article: Mechanical characterization of FDM components made of polyaryletherketone (PAEK) for aerospace applications: a comparison of direct printing and box-cut sample manufacturing strategies
Mechanical characterization of FDM components made of polyaryletherketone (PAEK) for aerospace applications: a comparison of direct printing and box-cut sample manufacturing strategies Open
This study delves into the manufacturing strategies employed for fabricating tensile samples utilized in the mechanical characterization of material extrusion (MEX) components constructed with polyaryletherketone (PAEK) for aerospace appli…
View article: The effect of the interlayer time and deposition speed on the tensile properties of material extrusion components
The effect of the interlayer time and deposition speed on the tensile properties of material extrusion components Open
This study investigates the influence of the substrate temperature in material extrusion (MEX) on tensile behavior of PLA samples. A full factorial experimental plan was conducted by varying the deposition speed and the interlayer time. In…
View article: A multidisciplinary approach to investigate the influence of process parameters on interlayer adhesion in material extrusion additive manufacturing
A multidisciplinary approach to investigate the influence of process parameters on interlayer adhesion in material extrusion additive manufacturing Open
This study investigates the influence of deposition conditions in material extrusion (MEX) on fracture toughness, with a specific focus on the interlayer adhesion. A full factorial experimental design was employed, varying three key parame…
View article: Unraveling the main issues of direct sample printing and sample cutting from a sheet of tensile test samples for characterization of Material Extrusion components
Unraveling the main issues of direct sample printing and sample cutting from a sheet of tensile test samples for characterization of Material Extrusion components Open
This research investigates the influence of varied sample manufacturing strategies on the mechanical properties of Material Extrusion (MatExt) Additive Manufacturing components. Two procedures were investigated: direct sample printing and …
View article: Improving bonding strength of aluminium-PEEK hybrid metal-polymer joints by two-step laser surface treatment
Improving bonding strength of aluminium-PEEK hybrid metal-polymer joints by two-step laser surface treatment Open
The present study investigates the adoption of laser surface treatments to improve the bonding strength of dissimilar material hybrid structures made by the thermomechanical joining process. Aluminium AA7075 alloy was joined to Polyether-e…
View article: Error introduced by direct 3D printing of compression samples of PLA made by FDM process
Error introduced by direct 3D printing of compression samples of PLA made by FDM process Open
This study delves into the crucial aspect of sample preparation methodology and its profound impact on characterizing the physical and mechanical properties of components fabricated through the material extrusion (fused deposition modeling…
View article: Influence of the deposition pattern on the interlayer fracture toughness of FDM components
Influence of the deposition pattern on the interlayer fracture toughness of FDM components Open
The present work is aimed at studying the influence of the deposition strategy on the fracture toughness behavior of the inter-layer zone of fused deposition modeling (FDM) 3D-printed parts. Double cantilever beam (DCB) specimens were prod…
View article: Yielding and post-yielding behavior of FDM parts under compression stress at different strain rates
Yielding and post-yielding behavior of FDM parts under compression stress at different strain rates Open
The present study investigates the compression behavior of components made by material extrusion, also known as fused filament fabrication (FFF) or fused deposition modeling (FDM). An experimental plan was conducted by adopting a high-dens…
View article: Experimental characterization of the interlayer fracture toughness of FDM components
Experimental characterization of the interlayer fracture toughness of FDM components Open
The present work is aimed at determining the inter-layer fracture toughness behavior of FDM parts. Double-cantilever beam specimens were produced and tested using already-established testing standards to capture the fracture toughness beha…
View article: Moisture-induced defects produced by direct laser joining of AA7075 aluminum and PEEK
Moisture-induced defects produced by direct laser joining of AA7075 aluminum and PEEK Open
The present investigation aims to determine how polymer moisture and volatile compounds influence the mechanical behavior of hybrid metal-polymer joints made by Laser-Assisted Joining. Experimental laser joining tests were performed on AA7…
View article: Yielding and post-yielding behavior of FDM parts under compression stress
Yielding and post-yielding behavior of FDM parts under compression stress Open
The present study investigates the compression behavior of components made by material extrusion, also known as fused filament fabrication (FFF) or fused deposition modeling (FDM). An experimental plan was conducted by adopting a high-dens…
View article: Influence of laser texturing strategy on thermomechanical joining of AA7075 aluminum alloy and PEEK
Influence of laser texturing strategy on thermomechanical joining of AA7075 aluminum alloy and PEEK Open
The present investigation aimed to determine the influence of the texturing strategy on the mechanical behavior of metal-polymer hybrid joints made by friction-assisted joining. An experimental campaign was conducted on AA7075 aluminum all…
View article: Repairing aluminum-PEEK hybrid metal-polymer joints made by thermo-mechanical joining
Repairing aluminum-PEEK hybrid metal-polymer joints made by thermo-mechanical joining Open
Hybrid multi-material joints are demanded in several fields, including automotive, aerospace, defense, and biomedical. The repairing process of hybrid multi-material joints made of metal and polymer using friction-assisted joining is inves…
View article: Mechanical characterization of FDM parts through instrumented flat indentation
Mechanical characterization of FDM parts through instrumented flat indentation Open
Evaluating local mechanical properties of parts made by additive manufacturing processes can improve the deposition conditions. This study proposes a non-destructive characterization test to determine the mechanical behavior of fused depos…
View article: Mechanical characterization of FDM parts through instrumented flat indentation
Mechanical characterization of FDM parts through instrumented flat indentation Open
Evaluating local mechanical properties of parts made by Additive Manufacturing processes can improve the deposition conditions. This study proposes a non-destructive characterization test to determine the mechanical behavior of fused depos…
View article: Determination of local density in components made by fused deposition modeling through indentation test
Determination of local density in components made by fused deposition modeling through indentation test Open
The present study is aimed at determining the local density of components made by fused deposition modeling (FDM) through non-destructive indentation tests. An experimental campaign was performed to assess such a relationship. Specimens we…
View article: Novel Approach toward the Forming Process of CFRP Reinforcement with a Hot Stamped Part by Prepreg Compression Molding
Novel Approach toward the Forming Process of CFRP Reinforcement with a Hot Stamped Part by Prepreg Compression Molding Open
The use of carbon fiber-reinforced plastics (CFRP) is markedly increasing, particularly for the manufacturing of automotive parts, to achieve better mechanical properties and a light weight. However, it is difficult to manufacture multi-ma…
View article: A State-of-the-Art Review on Advanced Joining Processes for Metal-Composite and Metal-Polymer Hybrid Structures
A State-of-the-Art Review on Advanced Joining Processes for Metal-Composite and Metal-Polymer Hybrid Structures Open
Multi-materials of metal-polymer and metal-composite hybrid structures (MMHSs) are highly demanded in several fields including land, air and sea transportation, infrastructure construction, and healthcare. The adoption of MMHSs in transpor…
View article: Friction Stir Welding and Friction Spot Stir Welding Processes of Polymers—State of the Art
Friction Stir Welding and Friction Spot Stir Welding Processes of Polymers—State of the Art Open
In the last decade, the friction stir welding of polymers has been increasingly investigated by the means of more and more sophisticated approaches. Since the early studies, which were aimed at proving the feasibility of the process for po…
View article: Combined Fuzzy and Genetic Algorithm for the Optimisation of Hybrid Composite-Polymer Joints Obtained by Two-Step Laser Joining Process
Combined Fuzzy and Genetic Algorithm for the Optimisation of Hybrid Composite-Polymer Joints Obtained by Two-Step Laser Joining Process Open
In the present work, genetic algorithms and fuzzy logic were combined to model and optimise the shear strength of hybrid composite-polymer joints obtained by two step laser joining process. The first step of the process consists of a surfa…
View article: Analysis of Failure-Mode Dependent Joint Strength in Hole Clinching from the Aspects of Geometrical Interlocking Parameters
Analysis of Failure-Mode Dependent Joint Strength in Hole Clinching from the Aspects of Geometrical Interlocking Parameters Open
The hole-clinching process is one of the mechanical methods for joining dissimilar materials, such as aluminum alloy with advanced high-strength steel, hot-pressed steel, and carbon fiber reinforced plastics, employing forming technology-b…
View article: Grindability Assessment of Metal Matrix Composites
Grindability Assessment of Metal Matrix Composites Open
In this paper, an experimental study on the grindability evaluation of Metal Matrix Composites is reported. To this purpose, experimental data obtained from tests carried out on a horizontal surface grinder have been employed. Investigatio…