Details
| Translated title of the contribution | Study on the surface integrity of aisi 4140 steel after turning |
|---|---|
| Original language | Portuguese |
| Article number | e-12627 |
| Pages (from-to) | 1-12 |
| Number of pages | 12 |
| Journal | Revista Materia |
| Volume | 25 |
| Issue number | 2 |
| Publication status | Published - 2020 |
Abstract
Machine components are usually subjected to cyclic loads, which may lead to failure, even when the component is subjected to elastic deformations only. Manufacturing processes are capable of affecting roughness and inducing residual stresses of distinct levels and depths, being able to affect the component performance and lifespan. This work investigates the influence of turning parameters (cutting speed, feed and depth of cut) on surface roughness, residual stress and fatigue life of hardened AISI 4140 steel (40 HRC). Feed is the most influential parameter affecting surface roughness. It was noticed that the cutting parameters did affect the residual stress profile, i.e., tensile residual stresses of higher intensity were induced when higher cutting speeds were employed and reaching deeper layers when higher feed and lower depth of cut values were used. The fatigue life was evaluated under rotating bending tests, which indicated a combined influence of feed and depth of cut. At lower feeds, the increase of depth of cut resulted in longer lives, however, an opposite behavior was noted at higher feeds. Longer fatigue lives were observed after turning at higher cutting speeds and depths of cut combined with lower feeds.
Keywords
- AISI 4140 steel, Fatigue life, Roughness, Surface quality, Turning
ASJC Scopus subject areas
- Chemistry(all)
- General Chemistry
- Materials Science(all)
- General Materials Science
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: Revista Materia, Vol. 25, No. 2, e-12627, 2020, p. 1-12.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Estudo sobre a integridade superficial do aço abnt 4140 após a operação de torneamento
T2 - Study on the surface integrity of AISI 4140 steel after turning
AU - Martins, Augusto Moura
AU - Souza, Poliana Santos
AU - Santos, Anderson Júnior Dos
AU - Abrão, Alexandre Mendes
AU - Denkena, Berend
AU - Breidenstein, Bernd
AU - Meyer, Kolja
N1 - Funding information: O presente trabalho foi realizado com apoio da Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - Brasil (CAPES) - Código de Financiamento 001, da Fundação de Amparo à Pesquisa do Estado de Minas Gerais – FAPEMIG (projeto TEC-APQ-00241-11) e do Conselho Nacional de Desenvolvimento Cientí-fico e Tecnológico – CNPq.
PY - 2020
Y1 - 2020
N2 - Machine components are usually subjected to cyclic loads, which may lead to failure, even when the component is subjected to elastic deformations only. Manufacturing processes are capable of affecting roughness and inducing residual stresses of distinct levels and depths, being able to affect the component performance and lifespan. This work investigates the influence of turning parameters (cutting speed, feed and depth of cut) on surface roughness, residual stress and fatigue life of hardened AISI 4140 steel (40 HRC). Feed is the most influential parameter affecting surface roughness. It was noticed that the cutting parameters did affect the residual stress profile, i.e., tensile residual stresses of higher intensity were induced when higher cutting speeds were employed and reaching deeper layers when higher feed and lower depth of cut values were used. The fatigue life was evaluated under rotating bending tests, which indicated a combined influence of feed and depth of cut. At lower feeds, the increase of depth of cut resulted in longer lives, however, an opposite behavior was noted at higher feeds. Longer fatigue lives were observed after turning at higher cutting speeds and depths of cut combined with lower feeds.
AB - Machine components are usually subjected to cyclic loads, which may lead to failure, even when the component is subjected to elastic deformations only. Manufacturing processes are capable of affecting roughness and inducing residual stresses of distinct levels and depths, being able to affect the component performance and lifespan. This work investigates the influence of turning parameters (cutting speed, feed and depth of cut) on surface roughness, residual stress and fatigue life of hardened AISI 4140 steel (40 HRC). Feed is the most influential parameter affecting surface roughness. It was noticed that the cutting parameters did affect the residual stress profile, i.e., tensile residual stresses of higher intensity were induced when higher cutting speeds were employed and reaching deeper layers when higher feed and lower depth of cut values were used. The fatigue life was evaluated under rotating bending tests, which indicated a combined influence of feed and depth of cut. At lower feeds, the increase of depth of cut resulted in longer lives, however, an opposite behavior was noted at higher feeds. Longer fatigue lives were observed after turning at higher cutting speeds and depths of cut combined with lower feeds.
KW - AISI 4140 steel
KW - Fatigue life
KW - Roughness
KW - Surface quality
KW - Turning
UR - http://www.scopus.com/inward/record.url?scp=85090639095&partnerID=8YFLogxK
U2 - 10.1590/S1517-707620200002.1027
DO - 10.1590/S1517-707620200002.1027
M3 - Article
AN - SCOPUS:85090639095
VL - 25
SP - 1
EP - 12
JO - Revista Materia
JF - Revista Materia
SN - 1517-7076
IS - 2
M1 - e-12627
ER -