There are no files associated with this item.
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.citation.conferencePlace | SI | - |
dc.citation.endPage | 236 | - |
dc.citation.startPage | 232 | - |
dc.citation.title | 3rd International Conference on Progress in Additive Manufacturing, Pro-AM 2018 | - |
dc.contributor.author | Choe, Jungho | - |
dc.contributor.author | Jung, Im Doo | - |
dc.contributor.author | Yun, Jaecheol | - |
dc.contributor.author | Yang, Sangsun | - |
dc.contributor.author | Yu, Ji-Hun | - |
dc.contributor.author | Yang, Dong-Yeol | - |
dc.contributor.author | Kim, Yong-Jin | - |
dc.date.accessioned | 2023-12-19T15:51:36Z | - |
dc.date.available | 2023-12-19T15:51:36Z | - |
dc.date.created | 2020-09-22 | - |
dc.date.issued | 2018-05 | - |
dc.description.abstract | AISIH13 tool steel structures were fabricated by selective laser melting which is one of the metal additive manufacturing process. Scanning speed of laser was controlled in the ranging of 100-1000 mm/s to optimize the process parameter to fabricate the highly densified structure. Laser power, hatch space and layer thickness were fixed at 90 W, 80 urn and 25 urn. Under 200 mm/s, spherical shape pores were observed and irregular shape pores were observed in over 400 mm/s samples. Residual pores were not easily removed by changing laser scanning speed alone and laser re-melting technique was applied to solve the pore problem. Each layers were exposed twice to laser with various scanning speed before re-coating the powder for next layer. Spherical shape pores were observed from all of the specimen exposed under 200 mm/s irrespective of another exposed laser speed. While re-melting over scanning speed of 800 mm/s did not showed effect on the densification, the combination of first scanning speed (400 mm/s) and second scanning speed (600 mm/s) showed the significant reduction of pores. Copyright © 2018 by Nanyang Technological University | - |
dc.identifier.bibliographicCitation | 3rd International Conference on Progress in Additive Manufacturing, Pro-AM 2018, pp.232 - 236 | - |
dc.identifier.doi | 10.25341/D4DW27 | - |
dc.identifier.issn | 2424-8967 | - |
dc.identifier.scopusid | 2-s2.0-85053634546 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/48550 | - |
dc.language | 영어 | - |
dc.publisher | Pro-AM | - |
dc.title | Densifying method in additive manufacturing process of H13 tool steel: Laser re-melting | - |
dc.type | Conference Paper | - |
dc.date.conferenceDate | 2018-05-14 | - |
Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Tel : 052-217-1404 / Email : scholarworks@unist.ac.kr
Copyright (c) 2023 by UNIST LIBRARY. All rights reserved.
ScholarWorks@UNIST was established as an OAK Project for the National Library of Korea.