DOI QR코드

DOI QR Code

Finite Element Simulation of Hot Forging Process for Tank Transmission Ring Component

전차 변속기 링 형상 부품의 열간 단조 공정 성형 해석

  • Chul-Kyu Jin (School of mechanical engineering, Kyungnam University )
  • 진철규 (경남대학교 기계공학부)
  • Received : 2024.09.30
  • Accepted : 2024.10.14
  • Published : 2024.10.31

Abstract

In this study, the formability was predicted using a finite element method-based forming simulation program to manufacture ring-shaped parts with multiple rectangular grooves through a hot forging process. The hot forging process was designed into four processes. In the first and second processes, the disk-shaped raw material was transformed into the shape of a bowl. In the third process, the inner lower part of the bowl was sheared to form a ring shape. In the fourth process, the outer surface of the upper part of the ring was partially sheared to create multiple rectangular grooves. Since the lower mold for the first and second processes is the same, mold costs can be reduced. In the third process, burrs are expected to occur on the shear surface, so burr removal work is required in the actual process. The fourth process requires more than one forging operation because the rectangular groove cannot be made uniformly in one operation.

Keywords

Acknowledgement

본 논문은 국방기술품질원의 방산혁신클러스터 지원사업의 지원을 받아 수행된 연구임(DCL2020L).

References

  1. https://namu.wiki/w/K-9%20자주곡사포.
  2. https://ko.wikipedia.org/wiki/k9_자주포.
  3. M. Li, M. Khonsari, and R. Yang, "DYNAMICS ANALYSIS OF TORSIONAL VIBRATION INDUCED BY CLUTCH AND GEAR SET IN AUTOMATIC TRANSMISSION," International Journal of Automotive Technology, vol.19, no. 3, pp. 473-488, (2018).
  4. J. Cho, Y. Lee, W. Kim, and S. Jang, "WET SINGLE CLUTCH ENGAGEMENT BEHAVIORS IN THE DUAL-CLUTCH TRANSMISSION SYSTEM," International Journal of Automotive Technology, vol.19, no. 3, pp. 463-472, (2018).
  5. E. Boege, and R. Bohnsack, "Closed die technologies for hot forging," Journal of Materials Processing Technology, vol.98, no. 2, pp. 165-170, (2000).
  6. A. R. Jo, M. S. Jeong, S. K. Cho, and S. K. Hwang, "Development of Hot and Cold Forging Process for Manufacturing a Hub of Dual Clutch Transmission," Transactions of Materials Processing, vol.28, no. 6, pp. 321-327, (2019).
  7. C. K. Jin, "Forming Analysis and Experiment of Hard to Forming T Shape Aluminum Part," Journal of The Korean Society of Industry Convergence, vol.20, no. 2, pp. 141-148, (2017).
  8. J. H. Kang, H. J. Kim, and H. W. Lee, "Forging process design of cup shaped large forging using finite element method," J. Korean Soc. of Marine Engineering, vol.39, no. 7, pp. 729-734, (2015).
  9. Y. S. Jang, D. C. Ko, and B. M . Kim, "Application of the finite element method to predict microstructure evolution in the hot forging of steel," Journal of Materials Processing Technology, vol.101, no. 1-3, pp. 85-94, (2000).
  10. M. S. Lee, J. S. An, S. K. Hwang, M. C. Song, and Y. H. Moon, "Assessment of process-induced cracks in hot-working operations using crack susceptibility index based on plastic instability criteria," Journal of Materials Research and Technology, vol.29, pp. 5282-5294, (2024).
  11. D. Y. Ahn, O. D. Lim, and M. S. Lee, "FE analysis of forming limit diagram of 22MnB5 sheet using fracture energy theory," International Journal of Precision Engineering and Manufacturing, vol.24, no. 10, pp. 1805-1811, (2023).
  12. J. H. Byun, S. D. Byun, C. H. Yi, "A Study on SCr420HB Helical Gear Deformative Simulation by Heat Treatment Quenching Method," International J. of the Korean Society for Heat Treatment., vol.28, no. 1, pp. 24-31, (2015).