Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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A Preliminary Study on the Application of Three-Dimensional (3D) Printing Technologies to Hot Bulk Forming Processes - Example of Preform Design and Investigation of Hot-working Tool Steel Deposited Surface

3 차원 프린팅 기술의 열간 체적 성형 공정 적용에 관한 기초 연구 - 예비형상 설계 예 및 열간 금형강으로 적층된 표면 특성 분석

  • Ahn, Dong-Gyu (Department of Mechanical Engineering, Chosun University) ;
  • Kim, Se-Hun (Design Support Team, Hyundai Welding Ltd.) ;
  • Lee, Ho-Jin (Department of Mechanical Engineering, Graduate School, Chosun University)
  • 안동규 (조선대학교 기계공학과) ;
  • 김세훈 (현대종합금속(주) 설계지원팀) ;
  • 이호진 (조선대학교 일반대학원 기계공학과)
  • Received : 2014.09.22
  • Accepted : 2014.11.01
  • Published : 2014.12.01
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Abstract

The goal of this paper is to investigate preliminary the applicability of 3D printing technologies for the development of the hot bulk forming process and die. 3D printing technology based on the plastic material was applied to the preform design of the hot forging process. Plastic hot forging dies were fabricated by Polyjet process for the physical simulation of the workpiece deformation. The feasibility of application of Laser-aided Direct Metal Rapid Tooling (DMT) process to the fabrication of the hot bulk metal forming die was investigated. The SKD61 hot-working tool steel was deposited on the heat treated SKD61 using the DMT process. Fundamental characteristics of SKD 61 hot-working tool steel deposited specimen were examined via hardness and wear experiments as well as the observation of the morphology. Using the results of the examination of fundamental characteristics, the applicability of the DMT process to manufacture hot bulk forming die was discussed.

Keywords

References

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