Material Flow in Infeed Rotary Swaging of Tubes
Rotary swaging is an incremental metal forming process widely used to reduce the cross–section of parts. For tubular parts, the final wall thickness also changes during the process. The lubricant condition is a factor, which affects these geometry changes. Beneath the change of the geometry, the com...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-12-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/14/1/58 |
| _version_ | 1797543602033786880 |
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| author | Yang Liu Jing Liu Marius Herrmann Christian Schenck Bernd Kuhfuss |
| author_facet | Yang Liu Jing Liu Marius Herrmann Christian Schenck Bernd Kuhfuss |
| author_sort | Yang Liu |
| collection | DOAJ |
| description | Rotary swaging is an incremental metal forming process widely used to reduce the cross–section of parts. For tubular parts, the final wall thickness also changes during the process. The lubricant condition is a factor, which affects these geometry changes. Beneath the change of the geometry, the complex material flow during the process determines the final geometry and the mechanical properties. Therefore, with a thorough insight into the material flow, it could be understood how to control it in order to achieve desired properties. Producing tubes with uniform outer diameter and changing inner profiles is an application of this method. Furthermore, applying this method, different local cold hardening could be achieved by different total strain. In this study, the dependency of the material flow on the lubrication conditions was investigated. Simulations with combined hardening material models were verified by the change of the wall thickness of tubes. It was found that friction condition significantly influences the back shifting of the workpiece and the elongation caused by each stroke. Results from simulations and experiments showed that a certain lubricant condition leads to the highest axial elongation of the workpiece. |
| first_indexed | 2024-03-10T13:47:58Z |
| format | Article |
| id | doaj.art-f1b6e54a54cf4ac4b406a9a5709ec608 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T13:47:58Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-f1b6e54a54cf4ac4b406a9a5709ec6082023-11-21T02:30:41ZengMDPI AGMaterials1996-19442020-12-011415810.3390/ma14010058Material Flow in Infeed Rotary Swaging of TubesYang Liu0Jing Liu1Marius Herrmann2Christian Schenck3Bernd Kuhfuss4Bremen Institute for Mechanical Engineering–bime, Badgasteiner Str. 1, 28359 Bremen, GermanyKey Laboratory of Materials Processing Engineering, School of Material Science and Engineering, Xi’an Shiyou University, Xi’an 710065, ChinaBremen Institute for Mechanical Engineering–bime, Badgasteiner Str. 1, 28359 Bremen, GermanyBremen Institute for Mechanical Engineering–bime, Badgasteiner Str. 1, 28359 Bremen, GermanyBremen Institute for Mechanical Engineering–bime, Badgasteiner Str. 1, 28359 Bremen, GermanyRotary swaging is an incremental metal forming process widely used to reduce the cross–section of parts. For tubular parts, the final wall thickness also changes during the process. The lubricant condition is a factor, which affects these geometry changes. Beneath the change of the geometry, the complex material flow during the process determines the final geometry and the mechanical properties. Therefore, with a thorough insight into the material flow, it could be understood how to control it in order to achieve desired properties. Producing tubes with uniform outer diameter and changing inner profiles is an application of this method. Furthermore, applying this method, different local cold hardening could be achieved by different total strain. In this study, the dependency of the material flow on the lubrication conditions was investigated. Simulations with combined hardening material models were verified by the change of the wall thickness of tubes. It was found that friction condition significantly influences the back shifting of the workpiece and the elongation caused by each stroke. Results from simulations and experiments showed that a certain lubricant condition leads to the highest axial elongation of the workpiece.https://www.mdpi.com/1996-1944/14/1/58metal formingcold forgingcombined hardening |
| spellingShingle | Yang Liu Jing Liu Marius Herrmann Christian Schenck Bernd Kuhfuss Material Flow in Infeed Rotary Swaging of Tubes Materials metal forming cold forging combined hardening |
| title | Material Flow in Infeed Rotary Swaging of Tubes |
| title_full | Material Flow in Infeed Rotary Swaging of Tubes |
| title_fullStr | Material Flow in Infeed Rotary Swaging of Tubes |
| title_full_unstemmed | Material Flow in Infeed Rotary Swaging of Tubes |
| title_short | Material Flow in Infeed Rotary Swaging of Tubes |
| title_sort | material flow in infeed rotary swaging of tubes |
| topic | metal forming cold forging combined hardening |
| url | https://www.mdpi.com/1996-1944/14/1/58 |
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