Experimental analysis of drill bit wear through monitoring of power, rotation speed, and chips during drilling

Authors

  • Ana Luysa Cavaleiro Azeredo Instituto Federal de Educação, Ciência e Tecnologia do Espírito Santo https://orcid.org/0009-0000-5812-4581
  • Mateus Augusto Mendes Figueiredo Instituto Federal de Educação, Ciência e Tecnologia do Espírito Santo, Vitória, Espiríto Santo, Brasil https://orcid.org/0009-0008-1773-6280
  • Luiz Rafael Resende da Silva Instituto Federal de Educação, Ciência e Tecnologia do Espírito Santo, Vitória, Espiríto Santo, Brasil https://orcid.org/0000-0002-1815-6842

DOI:

https://doi.org/10.47385/cadunifoa.v21.n56.6457

Keywords:

wear, drill, electrical power, chip

Abstract

Drilling is one of the most widely used machining processes in mechanical manufacturing, and drill bit wear is a factor that directly influences hole quality and process efficiency. This work aimed to analyze the influence of power consumption, drill rotation speed, and chip formation on the wear evolution of a twist drill during the drilling of an ASTM 1020 steel specimen. The methodology consisted of performing three consecutive holes using the same high-speed steel (HSS) drill bit, monitoring the electrical power, rotation speed, and machining time. After each test, visual analyses of the tool and chips were performed to identify wear mechanisms and thermal changes. The results showed that the reduction in rotation speed was accompanied by an increase in power consumption, indicating greater cutting resistance. Flank wear, built-up edge formation, and changes in the color of the drill bit and chips were also observed. It is concluded that monitoring these variables helps in evaluating drilling performance and optimizing machining conditions.

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Author Biographies

Ana Luysa Cavaleiro Azeredo, Instituto Federal de Educação, Ciência e Tecnologia do Espírito Santo

Mechanical Engineering Student

Mateus Augusto Mendes Figueiredo, Instituto Federal de Educação, Ciência e Tecnologia do Espírito Santo, Vitória, Espiríto Santo, Brasil

Graduando em Engenharia Mecânica

Luiz Rafael Resende da Silva, Instituto Federal de Educação, Ciência e Tecnologia do Espírito Santo, Vitória, Espiríto Santo, Brasil

Prof. PhD. Luiz Rafael Resende da Silva

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Published

2026-10-06

How to Cite

CAVALEIRO AZEREDO, Ana Luysa; MENDES FIGUEIREDO, Mateus Augusto; RESENDE DA SILVA, Luiz Rafael. Experimental analysis of drill bit wear through monitoring of power, rotation speed, and chips during drilling. Cadernos UniFOA, Volta Redonda, RJ, v. 21, n. 56, p. 1–13, 2026. DOI: 10.47385/cadunifoa.v21.n56.6457. Disponível em: https://revistas.unifoa.edu.br/cadernos/article/view/6457. Acesso em: 11 oct. 2026.

Issue

Section

Tecnologia e Engenharias