Maria Rosaria Saffioti

Dr. Maria Rosaria Saffioti

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Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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13 January 2025 in Journal of Composites Science
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Journal Article
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MCMariateresa Caggiano
Mariateresa Caggiano
MSMaria Rosaria Saffioti
Maria Rosaria Saffioti
GRGiovanna Rotella
Giovanna Rotella
Fiber Metal Laminates (FMLs), a class of hybrid materials combining the benefits of metals and composites, have emerged as promising lightweight structural materials. Consequently, research interest in FML production technologies is growing. According to a thorough analysis of the state of the art, the effectiveness of surface treatments in influencing the bond strength, formability, and durability of components during FML manufacturing still needs to be better understood. This paper compares several functionalization strategies to optimize the surface characteristics that lead to superior FML quality: burnishing, laser texturing, sandblasting, and chemical etching. Each method will be appropriately set up to alter the surface’s initial characteristics and, consequently, the adhesion performance for the subsequent stages. Moreover, sustainability considerations are also considered during surface functionalization processes. This study aims to assess and optimize these techniques for reduced environmental impact, considering energy efficiency and waste reduction. By integrating sustainable practices into FML manufacturing, this research seeks to enhance the overall environmental profile of these advanced materials.

2 June 2023 in CIRP Annals
Verified
Journal Article
Closed access
GRGiovanna Rotella
Giovanna Rotella
Francesco CoscoFrancesco Cosco
Francesco Cosco
MSMaria Rosaria Saffioti
Maria Rosaria Saffioti
Domenico UmbrelloDomenico Umbrello
Domenico Umbrello

1 February 2022 in Journal of Industrial Engineering and Management
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Journal Article
Open access
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MSMichela Sanguedolce
Michela Sanguedolce
GRGiovanna Rotella
Giovanna Rotella
MSMaria Rosaria Saffioti
Maria Rosaria Saffioti
LFLUIGINO FILICE
LUIGINO FILICE
Purpose: This paper aims to provide a flexible solution to include additive manufacturing into a process chain complying with Industry 4.0 pillars, overcoming major drawbacks in terms of reliability and experimental effort.Design/methodology/approach: The study is based on the combination of real experimental activities and simulated ones.Findings: The main findings of this work consist of validation of the proposed process chain, which proves to be effective in terms of process flexibility (additive manufacturing, burnishing and process simulation acting synergistically), cost and time reduction and final output quality, encouraging customer involvement towards customization.Originality/value: This paper contributes to current research on the application of burnishing process, an easy way to implement and environmental friendly post-processing method to improve the performance of AM products, by providing a unique perspective integrating a reliable simulation model. Other researchers can use these outcomes towards manufacturing of the future.

19 April 2023 in Materials Research Proceedings
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Conference Paper
Open access
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MSMaria Rosaria Saffioti
Maria Rosaria Saffioti
GRG. Rotella
G. Rotella
DUD. Umbrello
D. Umbrello
The demand of biomedical implants characterized by more and more advanced performances is expected to grow as well as their service life is expected to increase. Therefore, the necessity to research new material properties and production techniques in producing biomedical implants, characterized by higher durability, is strongly required. Regarding permanent prosthesis, the surface conditions play a key role on the prostheses overall mechanical performance. This work aims, through the application of burnishing process, to combine innovative machining finishing operations coupled with environmentally friendly lubricooling techniques to improve the surface integrity of biomedical devices in order to increase their quality, durability and reliability.


20 March 2025 in The International Journal of Advanced Manufacturing Technology
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Journal Article
Open access
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SCSERAFINO CARUSO
SERAFINO CARUSO
MSMaria Rosaria Saffioti
Maria Rosaria Saffioti
Antonio Del PreteAntonio Del Prete
Antonio Del Prete
GRGiovanna Rotella
Giovanna Rotella
This study investigates the effects of laser surface treatment on Ti6Al4V titanium alloy using both experimental and finite element analysis. Experimental parameters included varying laser scanning speeds (30, 45, and 60 mm/s) while maintaining a fixed pulse frequency and average power. The temperature profiles during the treatment were monitored and used to calibrate the heat exchange coefficients in the numerical model. Metallographic analysis of the treated surfaces revealed increased hardness in the remelting zone while X-ray diffraction analysis confirmed the formation of the α’-phase martensite, particularly at lower scanning speeds. The 3D finite element model was calibrated against experimental data and effectively used to predict the molten pool geometry, including molten pool width and penetration depth. The numerical model accurately predicted the effects of laser treatment on microstructure and mechanical properties, offering a tool for optimizing laser surface treatment parameters for enhanced surface performance. The study demonstrates that laser scanning speed plays a critical role in controlling the molten pool dimensions and the resulting phase transformations, which can improve the alloy’s mechanical properties, including hardness and wear resistance.