Study on the control method of flatness of thin-walled parts milled from 7075 aluminum alloy based on ice-fixation
Investigation of a new process and method to control the planarity of thin-walled parts can provide an important theoretical and application foundation for the high-precision, high-quality fabrication of thin-walled components in aerospace and other areas. A planarity control method based on ice fix...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
KeAi Communications Co., Ltd.
2023-12-01
|
| Series: | International Journal of Lightweight Materials and Manufacture |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2588840423000239 |
| _version_ | 1827615716929437696 |
|---|---|
| author | Gang Jin Qiyun Zhan Wenshuo Li Zhanjie Li Huaixin Lin |
| author_facet | Gang Jin Qiyun Zhan Wenshuo Li Zhanjie Li Huaixin Lin |
| author_sort | Gang Jin |
| collection | DOAJ |
| description | Investigation of a new process and method to control the planarity of thin-walled parts can provide an important theoretical and application foundation for the high-precision, high-quality fabrication of thin-walled components in aerospace and other areas. A planarity control method based on ice fixation for the milling of thin-walled parts is proposed for thin-walled aluminum alloy 7075 flat parts. The heart of the method is the application of a low temperature of about −5 °C to a flat thin-walled part using a freezing tray to hold the workpiece in place in order to control the flatness of the thin wall face grinding process. Investigation of the influence of the machining process and workpiece shape parameters on the machining flatness of thin-walled parts was conducted based on the practicality and efficiency of the method. Experimental results demonstrate that: compared to traditional milling (non-ice fixation), this method of fixing the ice can significantly improve the milling flatness of thin-walled parts, with the reduction of flatness ranging from 16.4% to 60.0%; however, the reduction of flatness is accompanied by the phenomenon of increasing milling force, with the mean increase in milling strength ranging between 5.8% and 40.3%; the flatness of the machining process decreases with increasing workpiece thickness (15.6%–65.0%) and increases with an increasing aspect ratio of the workpieces (17.4%–48.7%). The orthogonal test results show that the best-machined flatness can be achieved at large spindle speed, high feed rate, and low cutting depth working conditions, i.e. spindle speed 3000r·min−1, feed rate 350 mm·min−1, and cutting depth 0.01 mm. |
| first_indexed | 2024-03-09T09:15:39Z |
| format | Article |
| id | doaj.art-3ee9dae87cda4a8d8551e752735ba28e |
| institution | Directory Open Access Journal |
| issn | 2588-8404 |
| language | English |
| last_indexed | 2024-03-09T09:15:39Z |
| publishDate | 2023-12-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | International Journal of Lightweight Materials and Manufacture |
| spelling | doaj.art-3ee9dae87cda4a8d8551e752735ba28e2023-12-02T07:06:36ZengKeAi Communications Co., Ltd.International Journal of Lightweight Materials and Manufacture2588-84042023-12-0164563573Study on the control method of flatness of thin-walled parts milled from 7075 aluminum alloy based on ice-fixationGang Jin0Qiyun Zhan1Wenshuo Li2Zhanjie Li3Huaixin Lin4Tianjin University of Technology and Education, Tianjin 300222, China; Tianjin Key Laboratory of High-Speed Cutting and Precision Machining, Tianjin 300222, ChinaTianjin University of Technology and Education, Tianjin 300222, China; Tianjin Key Laboratory of High-Speed Cutting and Precision Machining, Tianjin 300222, China; Corresponding author. Tianjin University of Technology and Education, Tianjin 300222, China.Tianjin University of Technology and Education, Tianjin 300222, China; Tianjin Key Laboratory of High-Speed Cutting and Precision Machining, Tianjin 300222, ChinaTianjin University of Technology and Education, Tianjin 300222, China; Tianjin Key Laboratory of High-Speed Cutting and Precision Machining, Tianjin 300222, ChinaTianjin University of Technology and Education, Tianjin 300222, China; Tianjin Key Laboratory of High-Speed Cutting and Precision Machining, Tianjin 300222, ChinaInvestigation of a new process and method to control the planarity of thin-walled parts can provide an important theoretical and application foundation for the high-precision, high-quality fabrication of thin-walled components in aerospace and other areas. A planarity control method based on ice fixation for the milling of thin-walled parts is proposed for thin-walled aluminum alloy 7075 flat parts. The heart of the method is the application of a low temperature of about −5 °C to a flat thin-walled part using a freezing tray to hold the workpiece in place in order to control the flatness of the thin wall face grinding process. Investigation of the influence of the machining process and workpiece shape parameters on the machining flatness of thin-walled parts was conducted based on the practicality and efficiency of the method. Experimental results demonstrate that: compared to traditional milling (non-ice fixation), this method of fixing the ice can significantly improve the milling flatness of thin-walled parts, with the reduction of flatness ranging from 16.4% to 60.0%; however, the reduction of flatness is accompanied by the phenomenon of increasing milling force, with the mean increase in milling strength ranging between 5.8% and 40.3%; the flatness of the machining process decreases with increasing workpiece thickness (15.6%–65.0%) and increases with an increasing aspect ratio of the workpieces (17.4%–48.7%). The orthogonal test results show that the best-machined flatness can be achieved at large spindle speed, high feed rate, and low cutting depth working conditions, i.e. spindle speed 3000r·min−1, feed rate 350 mm·min−1, and cutting depth 0.01 mm.http://www.sciencedirect.com/science/article/pii/S2588840423000239Ice fixation machiningThin-walled partsMillingAluminum alloy 7075FlatnessCutting force |
| spellingShingle | Gang Jin Qiyun Zhan Wenshuo Li Zhanjie Li Huaixin Lin Study on the control method of flatness of thin-walled parts milled from 7075 aluminum alloy based on ice-fixation International Journal of Lightweight Materials and Manufacture Ice fixation machining Thin-walled parts Milling Aluminum alloy 7075 Flatness Cutting force |
| title | Study on the control method of flatness of thin-walled parts milled from 7075 aluminum alloy based on ice-fixation |
| title_full | Study on the control method of flatness of thin-walled parts milled from 7075 aluminum alloy based on ice-fixation |
| title_fullStr | Study on the control method of flatness of thin-walled parts milled from 7075 aluminum alloy based on ice-fixation |
| title_full_unstemmed | Study on the control method of flatness of thin-walled parts milled from 7075 aluminum alloy based on ice-fixation |
| title_short | Study on the control method of flatness of thin-walled parts milled from 7075 aluminum alloy based on ice-fixation |
| title_sort | study on the control method of flatness of thin walled parts milled from 7075 aluminum alloy based on ice fixation |
| topic | Ice fixation machining Thin-walled parts Milling Aluminum alloy 7075 Flatness Cutting force |
| url | http://www.sciencedirect.com/science/article/pii/S2588840423000239 |
| work_keys_str_mv | AT gangjin studyonthecontrolmethodofflatnessofthinwalledpartsmilledfrom7075aluminumalloybasedonicefixation AT qiyunzhan studyonthecontrolmethodofflatnessofthinwalledpartsmilledfrom7075aluminumalloybasedonicefixation AT wenshuoli studyonthecontrolmethodofflatnessofthinwalledpartsmilledfrom7075aluminumalloybasedonicefixation AT zhanjieli studyonthecontrolmethodofflatnessofthinwalledpartsmilledfrom7075aluminumalloybasedonicefixation AT huaixinlin studyonthecontrolmethodofflatnessofthinwalledpartsmilledfrom7075aluminumalloybasedonicefixation |