Banca de QUALIFICAÇÃO: PEDRO MÁRCIO DO CARMO SILVA

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : PEDRO MÁRCIO DO CARMO SILVA
DATE: 26/09/2025
TIME: 09:00
LOCAL: on-line
TITLE:

COMPARISON OF THE DRILLING PROCESS IN CARBON FIBER COMPOSITE WITH TWO- AND THREE-EDGED DRILLS

KEY WORDS:

Drilling, Carbon fiber composites, Central Composite Design (CCD), Cutting forces, Hole quality.

PAGES: 15
BIG AREA: Engenharias
AREA: Engenharia Mecânica
SUBÁREA: Processos de Fabricação
SPECIALTY: Processos de Fabricação, Seleção Econômica
SUMMARY:

Drilling composite materials represents a strategic advancement for several high-tech industries, such as aerospace, automotive, and naval engineering. This is due to the combination of low density and high strength these materials present. However, challenges such as delamination, tool wear/type, and heat generation can influence the internal finish of holes, reducing surface quality and drilling efficiency. Therefore, these defects drive ongoing research to optimize machining processes. Mastering composite drilling not only keeps pace with the evolution of advanced tool materials but also establishes itself as an essential step for the future of high-performance manufacturing. Therefore, this study aimed to analyze the axial force, torque, and internal finish of holes generated during the drilling process of carbon fiber composites using two- and three-edge twist drills. Cutting speed, tool feed, and the number of edges were considered as input variables, using Central Composite Design (CCD) planning. Axial force, torque, roughness, circularity, and cylindricity were analyzed as response variables. The data were subjected to statistical modeling, allowing the identification of the main effects and significant interactions between the factors and the plotting of response surface graphs for each factor.
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BANKING MEMBERS:
Presidente - 2190171 - LINCOLN CARDOSO BRANDAO
Interno - 1860440 - CARLOS HENRIQUE LAURO
Externo ao Programa - 3287310 - ETORY MADRILLES ARRUDA
Externo à Instituição - ALEXANDRE MENDES ABRAO - UFMG