DOI QR코드

DOI QR Code

인발성형 시스템 고도화를 위한 특수합금 육각봉의 압연특성 비교 해석 연구

Comparative Study on Rolling Characteristics of Hexagonal Bar with Special Alloy for Advancing Drawing System

  • 투고 : 2020.12.13
  • 심사 : 2021.01.11
  • 발행 : 2021.05.31

초록

Hexagonal bolt, nut, fittings, and high-pressure valves with special alloy play an important role in many industrial products. Numerical analysis was conducted to obtain data for designing a new drawing system. This study aims to predict the rolling force of the new drawing system compared to that of the established drawing system. The rolling force of the new drawing system was predicted using numerical analysis by assuming that it is in proportion to deformation. The rolling forces of Mo, Ti, and W were approximately 1.4, 0.5, and 2.5 times those of SUS. Because the values of ultimate strength of special alloys were more close to numerical analysis, the values of ultimate strength could be used to predict the rolling force of the new drawing system without numerical analysis in field.

키워드

과제정보

이 논문은 2020년도 경상국립대학교 대학회계연구년 지원에 의하여 연구되었음.

참고문헌

  1. Lee, K., Lee, I. K. and Kim, B. M., "Review on Profile Drawing Process," The Korean Society for Technology of Plasticity, Vol. 25, No. 1, pp. 67-74, 2016.
  2. Jeong, J. H., Ko, S. H., Kim, M. J., Hwang, W. B. and Park, H. C., "Estimation of Strain at Skin Pass Rolling Under Rolling Force and Back Tension Conditions," Transactions of the Korean Society of Mechanical Engineers A, Vol. 44, No. 4, pp. 281-290, 2020. https://doi.org/10.3795/ksme-a.2020.44.4.281
  3. Byon, S. M., "Flow Stress Modeling of Ferrous Alloys and Comparative Study of Dynamic Recrystallization Behaviors during Hot Rolling," Transactions of the Korean Society of Mechanical Engineers A, Vol. 44, No. 6, pp. 421-428, 2020. https://doi.org/10.3795/ksme-a.2020.44.6.421
  4. Lee, C. W., Lee, D. N. and Kim, I., "Changes of Texture and Plastic Strain Ratio of Asymmetrically Rolled and Annealed Cu Sheet(I)," Transactions of Materials Processing, Vol. 28, No. 6, pp. 354-360, 2019. https://doi.org/10.5228/KSTP.2019.28.6.354
  5. Lee, I. S. and Kim, H. J., "A Study on the Optimum Shape of MQL Carbide End-mill for Machining of Aluminum Lithium Alloy," Journal of the Korean Society of Manufacturing Process Engineers, Vol. 12, No. 6, pp. 159-166, 2013. https://doi.org/10.14775/ksmpe.2013.12.6.159
  6. Lee, J. H., Kim, H. Y. and Yoon, H. S., "Sustainability Analysis in Titanium Alloy Machining," Journal of the Korean Society of Manufacturing Process Engineers, Vol. 18, No. 12, pp. 73-81, 2019.
  7. Kim, H. J., Kim, Y. J. and Kim, H. S., "Effect of Changes in Metal Characteristics of Hot-Forged Alloy Steel on Mechanical Properties of an Automotive Automatic Transmission Gear," Journal of the Korean Society of Manufacturing Process Engineers, Vol. 15, No. 3, pp. 135-146, 2016. https://doi.org/10.14775/ksmpe.2016.15.3.135
  8. Lee, Y. S. and Yang, Y. J., "Study on Structural Analysis of Variable Roll Unit for Drawing Process of SUS Hexagonal Bar," Journal of the Korean Society of Mechanical Technology, Vol. 19, No. 6, pp. 827-833, 2017. https://doi.org/10.17958/KSMT.19.6.201712.827
  9. Lee, Y. S. and Yang, Y. J., "Study on Analysis of Rolling Characteristics of Stainless Hexagonal Bar using Drawing System," Journal of the Korean Society of Mechanical Technology, Vol. 21, No. 2, pp. 234-241, 2019. https://doi.org/10.17958/ksmt.21.2.201904.234