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http://hdl.handle.net/10397/81782
| Title: | Reduction of minimum cutting thickness of titanium alloys in micro cutting by a magnetic field assistance | Authors: | Yip, WS To, S |
Issue Date: | 2019 | Source: | IEEE access, 4 Oct. 2019, v. 7, p. 152034-152041 | Abstract: | Ultra-precision diamond cutting (UPDC) is a promising machining technology to generate precise components with optical grade surface. However, a tool rake angle turns to be negative when the tool radius is significantly larger than cutting depth during UPDC. The resulted plowing motion, which is the well-known size effect, causes undeformed and uncut materials remaining on the machined surface and thus affects the surface integrity of final components. In this study, the tribology behavior of tool/workpiece was altered in order to resolve the problematic size effect. A magnetic field was superimposed into titanium alloys during UPDC to increase the friction coefficient at the tool/workpiece interface in order to minimize the size effect and reduce minimum chip thickness (MCT) in UPDC. The experimental results showed the friction coefficient at the tool/workpiece interface increased under the magnetic field influence and a better surface quality was achieved in the presence of magnetic field. MCT of titanium alloys was reduced to by utilizing the proposed machining technology which the reduction percentage reached to A lower MCT value means the feasibility of machining under smaller depth of cut and thus enhances the existing precise level of components fabricated in ultra-precision machining. | Keywords: | Titanium alloys Precision machining Magnetic field Friction |
Publisher: | Institute of Electrical and Electronics Engineers | Journal: | IEEE access | ISSN: | 2169-3536 | DOI: | 10.1109/ACCESS.2019.2945526 | Rights: | This work is licensed under a Creative Commons Attribution 4.0 License. For more information, see http://creativecommons.org/licenses/by/4.0/ The following publication W. S. Yip and S. To, "Reduction of Minimum Cutting Thickness of Titanium Alloys in Micro Cutting by a Magnetic Field Assistance," in IEEE Access, vol. 7, pp. 152034-152041, 2019 is available at https://dx.doi.org/10.1109/ACCESS.2019.2945526 |
| Appears in Collections: | Journal/Magazine Article |
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| File | Description | Size | Format | |
|---|---|---|---|---|
| Yip_Reduction_Minimum_Cutting.pdf | 1.17 MB | Adobe PDF | View/Open |
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