Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Development of Automatic Voltage Control Equipment using LabVIEW Software

LabVIEW를 이용한 TIG 용접 자동 전압 제어 장치 개발

  • Song, Sang-Eun (Dept. of Mechanical Engineering, Colleges of mechatronics, Changwon National University) ;
  • Jeong, Young Cheol (Dept. of Mechanical Engineering, Colleges of mechatronics, Changwon National University) ;
  • Cho, Young Tae (Dept. of Mechanical Engineering, Colleges of mechatronics, Changwon National University) ;
  • Jung, Yoon-Gyo (Dept. of Mechanical Engineering, Colleges of mechatronics, Changwon National University)
  • 송상은 (창원대학교 메카트로닉스대학 기계공학부) ;
  • 정영철 (창원대학교 메카트로닉스대학 기계공학부) ;
  • 조영태 (창원대학교 메카트로닉스대학 기계공학부) ;
  • 정윤교 (창원대학교 메카트로닉스대학 기계공학부)
  • Received : 2016.06.30
  • Accepted : 2016.09.13
  • Published : 2017.02.28
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Abstract

The arc, generated by Tungsten Inert Gas(TIG) welding, is stable and provides excellent quality of the weld. Since automation is difficult, a lot of work is performed by hand. In addition, to obtain the uniform weld quality is difficult when using a base metal having a nonuniform welding line, or when welding inside a pipe. Generally, TIG welding power has the characteristic of constant-current. The welding voltage is changed in proportion to the arc length. Hence, the automatic voltage control equipment should be applied at the TIG welding system. The automatic voltage control equipment has been designed using LabVIEW software. It consists of a manufactured voltage divider circuit, and jig for moving the torch. The voltage measurements and driving of the motor were performed through the algorithm implementation in LabVIEW. Welding was conducted while increasing the arc length. In this process, it was confirmed that the automatic voltage control equipment kept the arc length constant.

Keywords

References

  1. Lee, G. W., "Development of TIG Welding Monitoring System", A Thesis for Master's Degree, Pukyong National University, Republic of Korea, 2005.
  2. Cho, S. M., Son, M. S., Park, J. H., "Development of Welding Quality Monitoring Method for TIG Cladding", Journal of KWJS Vol. 31, No. 6, pp. 90-95, 2013.
  3. Kim, H. H., Kim, I. S., "A study on development of the automated system for in-pipe welding" Journal of KWJS Vol. 26, No. 5, pp. 16-21, 2008.
  4. Kim, J. S., Kim, B. H., Lee, C. S., Kim, Y. J. Park, Y. H., "Study on the status of welded parts according to the types of shielding gas in TIG welding", Journal of KSMPE, Vol. 14, No. 2, pp. 38-43, 2015. https://doi.org/10.14775/ksmpe.2015.14.2.038
  5. Jeong, H. S., "Measurement of Voltage and Current in Fusion Welding" Journal of KWJS Vol. 19, No. 3, pp. 1-3, 2001.
  6. Jeon, G. S., Park, J. S., Park, S. U., Kim, S. H., Ahn, H. W., "DC link voltage control method in the sinusoidal current drive system for dental hand-piece PMSM", Journal of KSMPE, Vol. 12, No. 4, pp. 16-21, 2013.
  7. Kim, J. S., Kim, B. H., Lee, C. S., Kim, Y. J., Park, Y. H., "Study on The Status of Welded Parts According to The Types of Shielding Gas in TIG Welding", Journal of KSMPE, Vol. 14, No. 2, pp. 38-43, 2015. https://doi.org/10.14775/ksmpe.2015.14.2.038
  8. Jeong, G. H., Jeong, Y. C., Cho, Y. T., Jung, Y. G., "Development of the molten pool monitoring and voltage / current measurement system using labview software", Proceeding of KSMPE Autumn Conference 2015, pp. 177, 2015.
  9. Cho, Y. T., "A study on process analysis in pipe inside girth welding using GTAW", A Thesis for Master's Degree, Korea Advanced Institute of Science and Technology, Republic of Korea, 1999.
  10. Park, I. K., Ham, H. S., Cho, S. M., "The Eeffect of Arc Length and Shield Gas on Penetration Aspect Ratio in A-TIG welding", Journal of KWJS, Vol. 26, No. 6, pp. 42-47, 2008.

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