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2024 Vol.34, Issue 10

Review

Failure Cases according to Photocuring-Based Alumina 3D Printing
So-Young Ko1
,
Shin-Il Go2
,
Kyoung-Jun Jang3
,
Sang-Jin Lee14†
1Department of Advanced Materials Science and Engineering, Mokpo National University, Muan 58554, Republic of Korea
2Research Institute, HK Tech Co., Ltd., Mokpo 58618, Republic of Korea
3Research Institute, 3D Controls Co., Ltd., Busan 46721, Republic of Korea
4Research Institute of Ceramic Industry and Technology, Mokpo National University, Muan 58554, Republic of Korea
†Corresponding author E-Mail : lee@mokpo.ac.kr (S.-J. Lee, Mokpo Nat’l Univ.)
27 October 2024. pp. 457-463
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Abstract

3D printing using ceramic powder to produce precision ceramic parts has been studied with various additive manufacturing methods. This study analyzed problems occurring in alumina additive manufacturing that uses digital light processing (DLP) as well as methods to address such problems. For efficient analysis, we have classified alumina additive manufacturing into three types according to the driving method of the build platform - lifting type (LT), tilting type (TT) of the vat, and blade movement type (BT). LT had a problem with detachment and cracking of the alumina green body. However, this could be prevented by carefully controlling the cure depth of the suspension slurry and the bonding force between layers and improving the material used for coating the vat. TT, which resulted in non-uniform alumina additive manufacturing, could be improved by modifying the bidirectionality of the axis and the fluidity of the highly viscous alumina suspension slurry. BT resulted in detachment of the specimen as well as non-uniform results, but this could be avoided by shortening the shifting distance of the alumina suspension when it is introduced to the build platform, and enabling effective spreading.

Keywords
additive manufacturing
alumina 3D printing
suspension slurry
photocuring
digital light processing
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Information
  • Publisher :Materials Research Society of Korea
  • Publisher(Ko) :한국재료학회
  • Journal Title :Korean Journal of Materials Research
  • Journal Title(Ko) :한국재료학회지
  • Volume : 34
  • No :10
  • Pages :457-463
  • Received Date : 2024-08-17
  • Revised Date : 2024-09-29
  • Accepted Date : 2024-09-30
  • DOI :https://doi.org/10.3740/MRSK.2024.34.10.457
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