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Design and development of a milling tool-holder with differentiated damping using additive manufacturing

Grant number: 22/15409-0
Support Opportunities:Scholarships abroad - Research
Effective date (Start): September 01, 2023
Effective date (End): August 31, 2024
Field of knowledge:Engineering - Mechanical Engineering - Manufacturing Processes
Principal Investigator:Armando Ítalo Sette Antonialli
Grantee:Armando Ítalo Sette Antonialli
Host Investigator: Giovanni Totis
Host Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil
Research place: Università degli Studi di Udine, Italy  


The dynamic evaluation of machining processes, especially those related to interrupted cutting, as milling, has been the very first motivation for several research groups on manufacturing all around the world. Lots of efforts has been focused on identifying conditions that may reduce or suppress self-excited vibration, also called chatter, as they directly impair tool life, surface integrity of the machined parts, and consequently the productivity of those operations. Some of them may be highlighted: construction of new algorithms for prediction of the stability limits from experimental data, development of special tools with geometric features to avoid resonance conditions and adoption of technologies to the improvement of damping capacity of the system including machine, tool, fixture and workpiece. In this project, topology optimization technique is proposed to the formulation of a tool holder for the mitigation of chatter on milling. Due to the specificity regarding geometrical features, it will be produced by additive manufacturing through selective laser melting. Finally, this product provided differentiated damping will be tested under several cutting conditions along with vibration monitoring in order to validate the project. (AU)

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