Phase Evolution of M2 High Speed Steel During Selective Laser Melting: Experimental Investigation and Modelling
This work studies the phase evolution in SLM where the resultant melt is considered as a moving volumetric heat source modeled as a double ellipsoidal heat source. The cooling rates and temperatures at different locations along the substrate and away from the heat source during the SLM process were...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Conference Paper |
| Language: | English |
| Published: |
2016
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| Online Access: | https://hdl.handle.net/10356/84410 http://hdl.handle.net/10220/41754 |
| _version_ | 1811689689696960512 |
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| author | Liu, Zhong Hong Zhang, Dan Qing Chua, Chee Kai Leong, Kah Fai |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Liu, Zhong Hong Zhang, Dan Qing Chua, Chee Kai Leong, Kah Fai |
| author_sort | Liu, Zhong Hong |
| collection | NTU |
| description | This work studies the phase evolution in SLM where the resultant melt is considered as a moving volumetric heat source modeled as a double ellipsoidal heat source. The cooling rates and temperatures at different locations along the substrate and away from the heat source during the SLM process were simulated with the MATLAB program. Thermal gradient graphs were generated and the range of HAZ was identified from the corresponding theoretical austenitising temperature of M2 HSS. The associated HAZs were examined from their melt cross sections and validated with the simulated results. The evaluated HAZs from the experiments were found to be very close to the simulated HAZ range. The development of this model also provides the temperature distribution and cooling profiles in SLM. |
| first_indexed | 2024-10-01T05:52:06Z |
| format | Conference Paper |
| id | ntu-10356/84410 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:52:06Z |
| publishDate | 2016 |
| record_format | dspace |
| spelling | ntu-10356/844102020-09-24T20:12:44Z Phase Evolution of M2 High Speed Steel During Selective Laser Melting: Experimental Investigation and Modelling Liu, Zhong Hong Zhang, Dan Qing Chua, Chee Kai Leong, Kah Fai School of Mechanical and Aerospace Engineering Proceedings of the 1st International Conference on Progress in Additive Manufacturing (Pro-AM 2014) Singapore Centre for 3D Printing This work studies the phase evolution in SLM where the resultant melt is considered as a moving volumetric heat source modeled as a double ellipsoidal heat source. The cooling rates and temperatures at different locations along the substrate and away from the heat source during the SLM process were simulated with the MATLAB program. Thermal gradient graphs were generated and the range of HAZ was identified from the corresponding theoretical austenitising temperature of M2 HSS. The associated HAZs were examined from their melt cross sections and validated with the simulated results. The evaluated HAZs from the experiments were found to be very close to the simulated HAZ range. The development of this model also provides the temperature distribution and cooling profiles in SLM. Published version 2016-12-08T04:10:21Z 2019-12-06T15:44:37Z 2016-12-08T04:10:21Z 2019-12-06T15:44:37Z 2014 Conference Paper Liu, Z. H., Zhang, D. Q., Chua, C. K., & Leong, K. F. (2014). Phase Evolution of M2 High Speed Steel During Selective Laser Melting: Experimental Investigation and Modelling. Proceedings of the 1st International Conference on Progress in Additive Manufacturing (Pro-AM 2014), 151-157. https://hdl.handle.net/10356/84410 http://hdl.handle.net/10220/41754 10.3850/978-981-09-0446-3_099 en © 2014 by Research Publishing Services. 7 p. application/pdf |
| spellingShingle | Liu, Zhong Hong Zhang, Dan Qing Chua, Chee Kai Leong, Kah Fai Phase Evolution of M2 High Speed Steel During Selective Laser Melting: Experimental Investigation and Modelling |
| title | Phase Evolution of M2 High Speed Steel During Selective Laser Melting: Experimental Investigation and Modelling |
| title_full | Phase Evolution of M2 High Speed Steel During Selective Laser Melting: Experimental Investigation and Modelling |
| title_fullStr | Phase Evolution of M2 High Speed Steel During Selective Laser Melting: Experimental Investigation and Modelling |
| title_full_unstemmed | Phase Evolution of M2 High Speed Steel During Selective Laser Melting: Experimental Investigation and Modelling |
| title_short | Phase Evolution of M2 High Speed Steel During Selective Laser Melting: Experimental Investigation and Modelling |
| title_sort | phase evolution of m2 high speed steel during selective laser melting experimental investigation and modelling |
| url | https://hdl.handle.net/10356/84410 http://hdl.handle.net/10220/41754 |
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