An Investigation on Internal Material Loads and Modifications in Precision Turning of Steel 42CrMo4
The functional properties of a workpiece are determined by a modification of the surface and subsurface materials. In this work, the correlation between thermo-mechanical material loads and the modification of the residual stresses is presented. While the resulting residual stresses were measured by...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-05-01
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| Series: | Micromachines |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2072-666X/12/5/526 |
| _version_ | 1797535086787166208 |
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| author | Tjarden Zielinski Andrey Vovk Oltmann Riemer Bernhard Karpuschewski |
| author_facet | Tjarden Zielinski Andrey Vovk Oltmann Riemer Bernhard Karpuschewski |
| author_sort | Tjarden Zielinski |
| collection | DOAJ |
| description | The functional properties of a workpiece are determined by a modification of the surface and subsurface materials. In this work, the correlation between thermo-mechanical material loads and the modification of the residual stresses is presented. While the resulting residual stresses were measured by X-ray diffraction after machining experiments, the material loads were determined using a process simulation. The experimental data (measured process forces and results from previous experiments) are used to validate the simulation, which is then applied to calculate the internal thermo-mechanical loads of the maximal temperature and the equivalent von-Mises-stresses per volume element during the machining experiments. In conclusion, a higher depth impact of mechanical loads compared to a lower depth impact of thermal loads in precision machining is observed. For the sake of novelty, the thermo-mechanical loads were plotted and interpreted in a three-dimensional fashion. Finally, cross sections of this mutual representation at certain constant material loads—thermal and mechanical—result in a process signature, which can prospectively improve the prediction of functional workpiece properties. |
| first_indexed | 2024-03-10T11:39:21Z |
| format | Article |
| id | doaj.art-80986f57d7bf4e769f50a7e1eda649b0 |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-03-10T11:39:21Z |
| publishDate | 2021-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj.art-80986f57d7bf4e769f50a7e1eda649b02023-11-21T18:36:58ZengMDPI AGMicromachines2072-666X2021-05-0112552610.3390/mi12050526An Investigation on Internal Material Loads and Modifications in Precision Turning of Steel 42CrMo4Tjarden Zielinski0Andrey Vovk1Oltmann Riemer2Bernhard Karpuschewski3Leibniz-Institut für Werkstofforientierte Technologien—IWT, 28359 Bremen, GermanyLeibniz-Institut für Werkstofforientierte Technologien—IWT, 28359 Bremen, GermanyLeibniz-Institut für Werkstofforientierte Technologien—IWT, 28359 Bremen, GermanyLeibniz-Institut für Werkstofforientierte Technologien—IWT, 28359 Bremen, GermanyThe functional properties of a workpiece are determined by a modification of the surface and subsurface materials. In this work, the correlation between thermo-mechanical material loads and the modification of the residual stresses is presented. While the resulting residual stresses were measured by X-ray diffraction after machining experiments, the material loads were determined using a process simulation. The experimental data (measured process forces and results from previous experiments) are used to validate the simulation, which is then applied to calculate the internal thermo-mechanical loads of the maximal temperature and the equivalent von-Mises-stresses per volume element during the machining experiments. In conclusion, a higher depth impact of mechanical loads compared to a lower depth impact of thermal loads in precision machining is observed. For the sake of novelty, the thermo-mechanical loads were plotted and interpreted in a three-dimensional fashion. Finally, cross sections of this mutual representation at certain constant material loads—thermal and mechanical—result in a process signature, which can prospectively improve the prediction of functional workpiece properties.https://www.mdpi.com/2072-666X/12/5/526process signaturesmaterial loadsmaterial modificationsprecision machiningsteel |
| spellingShingle | Tjarden Zielinski Andrey Vovk Oltmann Riemer Bernhard Karpuschewski An Investigation on Internal Material Loads and Modifications in Precision Turning of Steel 42CrMo4 Micromachines process signatures material loads material modifications precision machining steel |
| title | An Investigation on Internal Material Loads and Modifications in Precision Turning of Steel 42CrMo4 |
| title_full | An Investigation on Internal Material Loads and Modifications in Precision Turning of Steel 42CrMo4 |
| title_fullStr | An Investigation on Internal Material Loads and Modifications in Precision Turning of Steel 42CrMo4 |
| title_full_unstemmed | An Investigation on Internal Material Loads and Modifications in Precision Turning of Steel 42CrMo4 |
| title_short | An Investigation on Internal Material Loads and Modifications in Precision Turning of Steel 42CrMo4 |
| title_sort | investigation on internal material loads and modifications in precision turning of steel 42crmo4 |
| topic | process signatures material loads material modifications precision machining steel |
| url | https://www.mdpi.com/2072-666X/12/5/526 |
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