Characterization of Residual Stresses Induced into Bearing Rings by Means of Turning in Soft State Using Different Turning Parameters

Zaghal, Jawad; Mertinger, Valéria; Filep, Ádám; Varga, Gyula; Benke, Márton

doi:10.36897/jme/144299

Cited by 2 publications

(1 citation statement)

References 12 publications

(16 reference statements)

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“…Table 3 shows the average of these measured values. The examination of the stress states after the turning operation was carried out during a previous study [48]. During the comparison with simulation results, the absolute difference values are taken as a basis.…”

Section: Resultsmentioning

confidence: 99%

2D FEM Investigation of Residual Stress in Diamond Burnishing

Felhő

Varga

2022

JMMP

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Sliding friction diamond burnishing is a finishing machining operation whose purpose is to improve the surface integrity of previously machined surfaces and increase their surface hardness. When analyzing a complex process involving plastic deformation, friction, and the interaction between solids, finite element models (FEMs) involve a significant amount of simplification. The aim of this study is to investigate a 2D FEM of the residual stress occurring during diamond burnishing. Before burnishing, the samples were processed by fine turning. Based on the simulations and laboratory experiments performed, it can be concluded that the diamond burnishing process can be modeled with relatively good approximation using two-dimensional modeling. It was also concluded that it is important to consider the initial surface topography in two-dimensional tests. The results indicate that the diamond burnishing process improved the residual stress properties of EN 1.4301 austenitic stainless steel by creating relatively high compressive stress, whose magnitude was between 629 and 1138 MPa depending on the applied force. However, the stress distribution is not uniform; it is mostly concentrated under the roughness peaks.

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Section: Resultsmentioning

confidence: 99%

2D FEM Investigation of Residual Stress in Diamond Burnishing

Felhő

Varga

2022

JMMP

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Effects of forming techniques on residual stresses in stiffening ribs of sandwich panels

Al-Sabur,

Kubit,

Khalaf

et al. 2024

Discov Appl Sci

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This study investigates residual stresses in stiffening ribs of composite materials formed by stamping in a punch-die system. Using two-dimensional X-ray diffraction (XRD), we measured residual stresses on both the anterior and posterior sides. Three LITECOR® composite types, with core thicknesses of 0.8, 1.25, and 1.6 mm, were examined. Results indicate that as core thickness increases, residual stress values decrease on both sides. Notably, anterior side stresses on the y-axis are relatively higher (1027–1199 MPa) compared to the x-axis, exceeding posterior side values (998–1083 MPa) at 0.8 mm core thickness. Moreover, the study compares these values with Single Point Incremental Forming (SPIF) and finds that SPIF generally yields lower stress values for all core thicknesses. These findings suggest that SPIF is favourable for achieving minimal residual stress in LITECOR® composites. Addressing residual stresses is crucial for enhancing structural integrity and extending the service life of sandwich panels and composite materials.

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Characterization of Residual Stresses Induced into Bearing Rings by Means of Turning in Soft State Using Different Turning Parameters

Cited by 2 publications

References 12 publications

2D FEM Investigation of Residual Stress in Diamond Burnishing

2D FEM Investigation of Residual Stress in Diamond Burnishing

Effects of forming techniques on residual stresses in stiffening ribs of sandwich panels

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