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Purpose: The welding quality and reducing production cost could be achieved by developing the automatic on-line welding quality monitoring system. However, investigation of welding fault to quantify the welding quality on the horizontal-position welding has been concentrated. Therefore, MD (Mahalanobis Distance) method on the vertical-position welding process by analysing the transform arc voltage and welding current gained from the on-line monitoring system has been applied. Design/methodology/approach: The transformed welding current and arc voltage data were taken from the experiment whereby the data number was 2500 data/s. The prediction of Contact Tip to Work Distance (CTWD) to gain best welding quality using the waveform variations were then taken from the experimental results. MD was employed to quantify the welding quality by analysing the transformed arc voltage and welding current. Finally, the optimal CTWD setting has verified the developed algorithms through additional experiments. Two kinds of experiments has been carried out by changing welding parameters artificially to verify the sensitivity and feasibility of WQ (Welding Quality) based on the concepts of MD and normal distribution. Findings: The results represented that WQ was fully capable of quantifying and qualifying the welding faults for automatic vertical-position welding process. Research limitations/implications: The arc welding process on the vertical-position compared to a horizontal-position welding is much more difficult because the metal transfer is influenced by the gravity force. To solve the problem, a new algorithm to monitor and control the welding fault during the arc welding process has been developed. Furthermore, optimization of welding parameters for the vertical-position welding process was really difficult to use the developed algorithms because they are only useful in selecting stored data and not for evaluating the effect of the variation of welding parameters on the weld ability. Practical implications: The developed algorithm could be achieved the highest welding quality at 15mm CTWD setting which the welding quality is 99.50% for the start section and 99.68% at the middle section. Originality/value: This paper proposed a new algorithm which employed the concepts of MD (Mahalanobis Distance) and normal distribution to describe a good quality welding.
Wydawca
Rocznik
Tom
Strony
31--40
Opis fizyczny
Bibliogr. 18 poz.
Twórcy
autor
- Department of Mechanical Engineering, Mokpo National University 1666, Yeongsan-ro, Cheonggye-myeon, Muan-gun, Jeonnam, 534-729, South Korea
autor
- Department of Mechanical Engineering, Mokpo National University 1666, Yeongsan-ro, Cheonggye-myeon, Muan-gun, Jeonnam, 534-729, South Korea
autor
- Department of Mechanical Engineering, Mokpo National University 1666, Yeongsan-ro, Cheonggye-myeon, Muan-gun, Jeonnam, 534-729, South Korea
autor
- Environmentally Materials & Components Center, KITECH, Palbok-dong 2-ga, Deokijin-du, Jeonju City, Jeollabuk-do 561-212, South Korea
autor
- Environmentally Materials & Components Center, KITECH, Palbok-dong 2-ga, Deokijin-du, Jeonju City, Jeollabuk-do 561-212, South Korea
autor
- Department of Mechanical Engineering, Mokpo National University 1666, Yeongsan-ro, Cheonggye-myeon, Muan-gun, Jeonnam, 534-729, South Korea
Bibliografia
- [1] S.P. Tewari, A. Gupta, J. Prakash, Effect of welding parameters on the weldability of materiał, International Journal of Engineering Science and Technology 2/4 (2010) 512-516.
- [2] Z. Huilin, W. Changjian, Y. Xuemei, W. Xinsheng, L. Ran, Automatic welding technologies for long- distance pipelines by use of all-position self-shielded flux cored wires, Natural Gas Industry 1 (2014) 113¬118.
- [3] G. Yongdong, Z. Haiyan, Z. Hongzhou, The application of automatic welding technology in west- to-east gas pipeline project, Oil and Gas Storage and Transportation 22/12 (2013) 53-55.
- [4] W. Rui, R. Guo, Developments of automatic girth welding technology in pipelines, Electric Welding Machine41/9 (2011) 53-59.
- [5] H. Anxin, X. Su and S. Huafeng, Current situation of automatic welding of domestic long distance pipelines, Natural Gas Oil 24/2 (2006) 12-14.
- [6] L. Helin, L. Ji, T. Wei, High grade line pipe and high pressure transportation: significant progress of oil & gas transportation pipeline technology in China, China Engineering Sciences 12/5 (2010) 84-90.
- [7] Y. Zhifeng, Z. Wenwei, Z. Zhihong, Development trend of China's gas pipeline and relevant technical problem, Oil and Gas Storage and Transportation 31/5 (2012) 321-325.
- [8] L. Helin, L. Ji, T. Wei, Significant technical progress in west-east gas pipeline projects line one and two, Natural Gas Industry 30/4 (2010) 1-9.
- [9] D.W. Cho, S.J. Na, Cho, M.H. Cho, J.S. Lee, A study on v-groove GMAW for various welding positions, Journal of Materials Processing Technology 213/9 (2013) 1640-1652.
- [10] I.S. Kim, J.H. Lee, J.P. Lee, M.H. Park, C.K. Park, Y.S. Kim, A study on welding quality of pipe in overlay welding process using Mahalanobis Distance method, Muan-gun, Mokpo National University, 2015.
- [11] F. Shengqiang, O. Hiroyuki, T. Hidennori, K. Yuichi, H. Shengsun, Qualitative and quantitative Analysis of GMAW welding fault base on Mahalanobis Distance, International Journal of Precision Engineering and Manufacturing 12/6 (2011) 949-955.
- [12] R.R. Chand, A study on experimental and numerical studies on mechanical characteristics for multi-pass GMA Welding, Master thesis, Department of Mechanical Engineering, Mokpo National University, Mokpo, Korea.
- [13] S.W. Simpson, X. Li, Parametric approach to positional fault detection in short arc welding, Science and Technology of Welding and Joining 2/14 (2009) 146-151.
- [14] S. Adolfsson, A. Bahrami, G. Bolmsjo, I. Claeson, On-line quality monitoring in short-circuit gas metal arc welding, Welding Journal 78/2 (1999) 59-73.
- [15] M. Toshio, T. Hidenori, O. Hiroyuki, K. Yu-ichi, Developments real-time monitoring method of welding, Transaction of JWRI 39/2 (2010) 369-371.
- [16] K. Muzaka, M.H. Park, J.P. Lee, B.J. Jin, D.H. Kim, I.S. Kim, A study on prediction of vertical-position welding using mahalanobis distance method, International Journal of Innovative Research in Engineering & Management 3/3 (2016) 154-159.
- [17] P. Satiya, S. Aravindan, P.M. Ajith, B. Arivazhagan, A.N. Hag, Microstructural characteristics on bead-on- plate welding of AISI 904L super austenitic stainless steel using gas metal arc welding process, International Journal of Engineering, Science and Technology 2/6 (2010) 189-199.
- [18] J.S. Son, M.H. Park, B.J. Jin, T.J. Yun, I.S. Kim, A study on modeling and controlling bead height in the robotic GMA welding, International Journal of Applied Engineering Research 12/13 (2017) 3631¬3638.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-edb864e8-9daa-41f8-a53b-3857f3d0d4ee