Influence of turning parameters on residual stresses and roughness of 42CrMo4 + QT

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F24%3A00376910" target="_blank" >RIV/68407700:21220/24:00376910 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1007/s00170-024-14257-5" target="_blank" >https://doi.org/10.1007/s00170-024-14257-5</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00170-024-14257-5" target="_blank" >10.1007/s00170-024-14257-5</a>

Result language

angličtina

Original language name

Influence of turning parameters on residual stresses and roughness of 42CrMo4 + QT

Original language description

Residual stresses and surface roughness have been recognized to play a critical role in the fatigue strength of metal components. Machining processes can induce different roughness and residual stress conditions depending on the parameters used in the process. Therefore, it is essential to develop knowledge that helps to predict the residual stresses and roughness that would be obtained from different machining conditions. Due to the growing interest from the industry in the use of 42CrMo4 steel because of its excellent mechanical properties, the main objective of this work is to establish two phenomenological models to accurately predict the residual stress and roughness values in turned specimens of this material. The models are derived from data of four process variables: (a) insert tip radius; (b) feed rate; (c) cutting speed; and (d) depth of cut. For this purpose, a wide experimental campaign has been developed, which includes the machining of 68 specimens under various cutting scenarios, and their subsequent measurement of residual stresses and roughness. Once the experimental data were obtained, the response surface method based on the central composite design was used to fit the models, obtaining a correlation index R^2 higher than 0.9 in both cases. In this article, it is concluded that feed rate and insert radius have a greater effect on the residual stress and roughness obtained, while cutting speed and depth of cut have a lesser impact on the results. It is hoped that the findings will establish a groundwork for the machining of this material type, ensuring controlled conditions of residual stress and roughness.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20301 - Mechanical engineering

Project

<a href="/en/project/GF23-06130K" target="_blank" >GF23-06130K: Procedure for fatigue estimation in contacts: Local multiaxial analysis of stress-related and tribological effects</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

The International Journal of Advanced Manufacturing Technology

ISSN

0268-3768

e-ISSN

1433-3015

Volume of the periodical

134

Issue of the periodical within the volume

5-6

Country of publishing house

GB - UNITED KINGDOM

Number of pages

23

Pages from-to

2897-2919

UT code for WoS article

001299791400002

EID of the result in the Scopus database

2-s2.0-85202164779