Experimental investigation on the factors affecting the quality of titanium alloy overhang via selective laser melting forming
Selective laser melting (SLM) technology has attracted wide attention because it can produce parts with complex shape or internal characteristics that are difficult to process in traditional ways. SLM process is very easy to produce dross formation and balling defects on the overhanging surface of t...
| Main Authors: | , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2023
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/171250 |
| _version_ | 1826110895430828032 |
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| author | Su, Chunjian Cao, Jiazhen Li, Guangzhen Wang, Enmin Naveen, Balasundaram Selvan Lou, Shumei Huang, Wei Min |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Su, Chunjian Cao, Jiazhen Li, Guangzhen Wang, Enmin Naveen, Balasundaram Selvan Lou, Shumei Huang, Wei Min |
| author_sort | Su, Chunjian |
| collection | NTU |
| description | Selective laser melting (SLM) technology has attracted wide attention because it can produce parts with complex shape or internal characteristics that are difficult to process in traditional ways. SLM process is very easy to produce dross formation and balling defects on the overhanging surface of titanium alloy when forming the overhanging characteristic structural parts, which makes the surface of the formed parts rough. Therefore, how to improve the forming quality of titanium alloy overhanging parts by adding material becomes an urgent problem to be solved. In this paper, the influence factors and mechanism of quality of titanium alloy suspension parts formed by SLM process are experimentally studied. Through analysis and comparison of forming parts under different geometric dimensions and process parameters, appropriate geometric dimensions and process parameters are obtained to improve the quality of forming parts. In terms of scanning strategy, a compound scanning path of “vertical island zoning + contour remelting” is put forward to solve the problems of stress concentration and dross formation on the overhanging surface. This strategy is based on vertical island zoning and improves the heat dissipation at the edge of the part by remelting the contour of the formed layer. The result shows that this method can effectively reduce the residual stress of the overhanging part and improve the dross formation phenomenon. |
| first_indexed | 2024-10-01T02:41:59Z |
| format | Journal Article |
| id | ntu-10356/171250 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:41:59Z |
| publishDate | 2023 |
| record_format | dspace |
| spelling | ntu-10356/1712502023-10-18T00:55:11Z Experimental investigation on the factors affecting the quality of titanium alloy overhang via selective laser melting forming Su, Chunjian Cao, Jiazhen Li, Guangzhen Wang, Enmin Naveen, Balasundaram Selvan Lou, Shumei Huang, Wei Min School of Mechanical and Aerospace Engineering Engineering::Mechanical engineering Overhanging Structure Titanium Alloy Selective laser melting (SLM) technology has attracted wide attention because it can produce parts with complex shape or internal characteristics that are difficult to process in traditional ways. SLM process is very easy to produce dross formation and balling defects on the overhanging surface of titanium alloy when forming the overhanging characteristic structural parts, which makes the surface of the formed parts rough. Therefore, how to improve the forming quality of titanium alloy overhanging parts by adding material becomes an urgent problem to be solved. In this paper, the influence factors and mechanism of quality of titanium alloy suspension parts formed by SLM process are experimentally studied. Through analysis and comparison of forming parts under different geometric dimensions and process parameters, appropriate geometric dimensions and process parameters are obtained to improve the quality of forming parts. In terms of scanning strategy, a compound scanning path of “vertical island zoning + contour remelting” is put forward to solve the problems of stress concentration and dross formation on the overhanging surface. This strategy is based on vertical island zoning and improves the heat dissipation at the edge of the part by remelting the contour of the formed layer. The result shows that this method can effectively reduce the residual stress of the overhanging part and improve the dross formation phenomenon. The authors would like to acknowledge the financial support provided by the National Science Foundation of China (Grant No. 51705295), Shandong Provincial Natural Science Foundation, China (ZR2022ME032), and Support Program for Youth Innovation Technology in Colleges and Universities of Shandong Province (2019KJB015). 2023-10-18T00:55:11Z 2023-10-18T00:55:11Z 2023 Journal Article Su, C., Cao, J., Li, G., Wang, E., Naveen, B. S., Lou, S. & Huang, W. M. (2023). Experimental investigation on the factors affecting the quality of titanium alloy overhang via selective laser melting forming. International Journal of Advanced Manufacturing Technology, 128(7-8), 3391-3402. https://dx.doi.org/10.1007/s00170-023-12170-x 0268-3768 https://hdl.handle.net/10356/171250 10.1007/s00170-023-12170-x 2-s2.0-85168346349 7-8 128 3391 3402 en International Journal of Advanced Manufacturing Technology © 2023 The Author(s), under exclusive licence to Springer-Verlag London Ltd., part of Springer Nature. All rights reserved. |
| spellingShingle | Engineering::Mechanical engineering Overhanging Structure Titanium Alloy Su, Chunjian Cao, Jiazhen Li, Guangzhen Wang, Enmin Naveen, Balasundaram Selvan Lou, Shumei Huang, Wei Min Experimental investigation on the factors affecting the quality of titanium alloy overhang via selective laser melting forming |
| title | Experimental investigation on the factors affecting the quality of titanium alloy overhang via selective laser melting forming |
| title_full | Experimental investigation on the factors affecting the quality of titanium alloy overhang via selective laser melting forming |
| title_fullStr | Experimental investigation on the factors affecting the quality of titanium alloy overhang via selective laser melting forming |
| title_full_unstemmed | Experimental investigation on the factors affecting the quality of titanium alloy overhang via selective laser melting forming |
| title_short | Experimental investigation on the factors affecting the quality of titanium alloy overhang via selective laser melting forming |
| title_sort | experimental investigation on the factors affecting the quality of titanium alloy overhang via selective laser melting forming |
| topic | Engineering::Mechanical engineering Overhanging Structure Titanium Alloy |
| url | https://hdl.handle.net/10356/171250 |
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