GMA를 이용한 배관용접의 이면비드 형상예측에 관한 실험적 연구

An Experimental study on Prediction of Back-bead Geometry in Pipeline Using the GMA Welding Process

  • 투고 : 2011.01.05
  • 심사 : 2011.01.27
  • 발행 : 2011.02.15

초록

In this study, a variety of welding experiments were carried out to optimize root-pass welding process using GMA process. Based on the experimental results, optimal welding conditions were selected after analyzing correlation between welding parameters and back-bead geometry. Then, effectiveness of empirical models developed was compared and analyzed, and optimized empirical models were finally developed for predicting back-bead by analyzing the main effect of each factor which affects back-bead geometry and their influence on interaction. Also, functions proper for expressing the surface of back-bead were selected using diverse quadratic functions, and back-bead geometry was visualized using empirical models developed and quadratic functions.

키워드

참고문헌

  1. Jeong, J. W., Kim, I. S., Na, H. H., Lee, J. H., and Hong, S. H., 2010, "A Study on the Selection of Optimal Conditions in V-Groove Root-pass Welding of STS316L," Proceeding of the KAMES 2010 Joint Symposium, pp. 275-276.
  2. Lee, B. W., and Joe, S. M., 2010, "A Study on the Welds Characteristics of Stainless Steel 316L Pipe using Orbital Welding Process," Journal of the Korean Society for Power System Engineering, Vol. 14, No. 2, pp. 71-77.
  3. Son, J. S., Kim, I. S., Kim, H. H., Kim, I. J. Kang, B. Y., and Kim, H. J. 2007, "A study on the Prediction of Bead Geometry in the Robotic Welding System," Journal of Mechanical Science and Technology, Vol. 21, No. 10, pp. 1726-1731. https://doi.org/10.1007/BF03177401
  4. Park, H. S., Kim, T. H., and Rhee, S., 2002, "Optimization of Welding Parameters for Resistance Spot Welding of TRIP Steel using Response Surface Methodology," Journal of the Korea Welding and Joining Society, Vol. 2, No. 2, pp. 47-50.
  5. Cho, D. W., Na, S. J., and Lee, M. Y., 2009, "Exercitation of Bead Shape using Non-linear Multiple Regression and Piecewise Cubic Hermite Interpolation in FCA Fillet Pipe Welding," Journal of the Korea Welding and Joining Society, Vol. 27, No. 5, pp. 512-518.
  6. Olson, J. A., 1982, "Generalized Least Squares and Maximum Likelihood Estimation of the Logistic Function for Technology Diffusion," Journal of the Technical Forecasting and Social Change, Vol. 21, pp. 241-249. https://doi.org/10.1016/0040-1625(82)90053-1
  7. Lee, J .G., and Koh, B. K., 2007, "The Geometry Prediction of Back-bead in Arc Welding," Journal of the Korean Society of Manufacturing Technology Engineers, Vol.16, No. 5, pp. 84-89.