Partition of Primary Shear Plane Heat in Orthogonal Metal Cutting
When assessing the effect of metal cutting processes on the resulting surface layer, the heat generated in the chip formation zone that is transferred into the workpiece is of major concern. Models have been developed to estimate temperature distributions in machining processes. However, most of the...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-08-01
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| Series: | Journal of Manufacturing and Materials Processing |
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| Online Access: | https://www.mdpi.com/2504-4494/4/3/82 |
| _version_ | 1797558462264115200 |
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| author | Lars Langenhorst Jens Sölter Sven Kuschel |
| author_facet | Lars Langenhorst Jens Sölter Sven Kuschel |
| author_sort | Lars Langenhorst |
| collection | DOAJ |
| description | When assessing the effect of metal cutting processes on the resulting surface layer, the heat generated in the chip formation zone that is transferred into the workpiece is of major concern. Models have been developed to estimate temperature distributions in machining processes. However, most of them need information on the heat partition as input for the calculations. Based on analytical and numerical models, it is possible to determine the fraction of shear plane heat transferred into the workpiece for orthogonal cutting conditions. In the present work, these models were utilized to gain information on the significant influencing factors on heat partition, based on orthogonal cutting experiments, experimental results from the literature, and a purely model-based approach. It could be shown that the heat partition does not solely depend on the cutting velocity, the uncut chip thickness, and the thermal diffusivity—combined in the dimensionless thermal number—but the shear angle also has to be taken into account, as already proposed by some researchers. Furthermore, developed numerical models show that a more realistic representation of the process kinematics, e.g., regarding chip flow and temperature-dependent material properties, do not have a relevant impact on the heat partition. Nevertheless, the models still assume an idealized orthogonal cutting process and comparison to experimental-based findings on heat partition indicates a significant influence of the cutting edge radius and the friction on the flank face of the tool. |
| first_indexed | 2024-03-10T17:30:46Z |
| format | Article |
| id | doaj.art-87f22eea8735430e8af0f1c01242ddd7 |
| institution | Directory Open Access Journal |
| issn | 2504-4494 |
| language | English |
| last_indexed | 2024-03-10T17:30:46Z |
| publishDate | 2020-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Manufacturing and Materials Processing |
| spelling | doaj.art-87f22eea8735430e8af0f1c01242ddd72023-11-20T10:01:23ZengMDPI AGJournal of Manufacturing and Materials Processing2504-44942020-08-01438210.3390/jmmp4030082Partition of Primary Shear Plane Heat in Orthogonal Metal CuttingLars Langenhorst0Jens Sölter1Sven Kuschel2MAPEX Center for Materials and Processes, Faculty of Production Engineering, University of Bremen, Badgasteiner Straße 1, 28359 Bremen, GermanyMAPEX Center for Materials and Processes, Faculty of Production Engineering, University of Bremen, Badgasteiner Straße 1, 28359 Bremen, GermanyMAPEX Center for Materials and Processes, Faculty of Production Engineering, University of Bremen, Badgasteiner Straße 1, 28359 Bremen, GermanyWhen assessing the effect of metal cutting processes on the resulting surface layer, the heat generated in the chip formation zone that is transferred into the workpiece is of major concern. Models have been developed to estimate temperature distributions in machining processes. However, most of them need information on the heat partition as input for the calculations. Based on analytical and numerical models, it is possible to determine the fraction of shear plane heat transferred into the workpiece for orthogonal cutting conditions. In the present work, these models were utilized to gain information on the significant influencing factors on heat partition, based on orthogonal cutting experiments, experimental results from the literature, and a purely model-based approach. It could be shown that the heat partition does not solely depend on the cutting velocity, the uncut chip thickness, and the thermal diffusivity—combined in the dimensionless thermal number—but the shear angle also has to be taken into account, as already proposed by some researchers. Furthermore, developed numerical models show that a more realistic representation of the process kinematics, e.g., regarding chip flow and temperature-dependent material properties, do not have a relevant impact on the heat partition. Nevertheless, the models still assume an idealized orthogonal cutting process and comparison to experimental-based findings on heat partition indicates a significant influence of the cutting edge radius and the friction on the flank face of the tool.https://www.mdpi.com/2504-4494/4/3/82heat partitionorthogonal cuttingthermal modelingcutting temperature |
| spellingShingle | Lars Langenhorst Jens Sölter Sven Kuschel Partition of Primary Shear Plane Heat in Orthogonal Metal Cutting Journal of Manufacturing and Materials Processing heat partition orthogonal cutting thermal modeling cutting temperature |
| title | Partition of Primary Shear Plane Heat in Orthogonal Metal Cutting |
| title_full | Partition of Primary Shear Plane Heat in Orthogonal Metal Cutting |
| title_fullStr | Partition of Primary Shear Plane Heat in Orthogonal Metal Cutting |
| title_full_unstemmed | Partition of Primary Shear Plane Heat in Orthogonal Metal Cutting |
| title_short | Partition of Primary Shear Plane Heat in Orthogonal Metal Cutting |
| title_sort | partition of primary shear plane heat in orthogonal metal cutting |
| topic | heat partition orthogonal cutting thermal modeling cutting temperature |
| url | https://www.mdpi.com/2504-4494/4/3/82 |
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