Iranian Journal of Manufacturing Engineering

Iranian Journal of Manufacturing Engineering

Influence of the position of the center of the pipe relative to the rollers in the design of flower pattern in reshaping of cold roll forming

Document Type : Original Article

Authors
Hosein Arzandeh 1
Hassan Moslemi Naeini 1, 2
Mehdi Tajdari 3
Siamak Mazdak 4
Manabo Kiuchi 5
1 Department of Mechanical Engineering, Tarbiat Modares University, Tehran, IR Iran
2 Department of Mechanical Engineering, Faculty of Engineering, University of Science and Culture, Tehran, IR Iran
3 Department of Mechanical Engineering, University of Eyvanekey, Tehran, IR Iran
4 Faculty of Engineering, Arak University, Arak, IR Iran
5 Kiuchi Laboratory (KILAMETEC), Towa-Shiba-Coup, Shiba, Minato-ku, Tokyo, Japan
10.22034/ijme.2024.456656.1956
Abstract
In this article, several different flower patterns are designed for the folded section that is called the 507, with the “Forward-Backward” method. This method is an automatic method for designing the primary flower pattern. In this method, it is assumed that if the number of stands and the flower pattern are suitable, the initial pipe section can be reached by reverse shaping. In the design of flower pattern of complex sections with this method, how to position the center of the initial pipe relative to the final product is very important. In order to investigate the effect of the position of the pipe, the reshaping of the 507 section has been evaluated with three different positioning methods. The reduction of energy consumption and uniformity of wear of rollers have been used as two criteria to identify the most suitable flower pattern. The controllable factor in the uniform wear of the rollers is the adjustment of the vertical force on the rollers by improving the design of the flower pattern. For this purpose, numerical simulation has been used along with experimental testing. The dimensional characteristics of the formed pipe have been evaluated. The results show that choosing the right position for the center of the pipe affects the dimensional quality of the output section. This is effective in reducing the energy consumption by about 1%, improving the dimensions by about 55% and the uniformity of vertical force distribution by about 14% compared to the common method of flower pattern design.
Keywords
Reshaping of Cold Roll Forming
Flower Pattern Design
Folded Section 507
Forward-Backward Method
[1] Naeini HM, Kiuchi M, Kitawaki T, Kuromatsu R. Design method of rolls for reshaping processes of pipes with pentagonal cross-sections. Journal of materials processing technology. 2005 Oct 30;169(1):5-8. doi: 10.1016/j.jmatprotec.2004.06.034
[2] Mazdak, S, Design and Manufacturing Rolls for Reshaping process of pipes with cross section include fold in Factually of Mechanical Engineering. 2011, [dissertation], Tarbiat Modares University: Tehran-Iran. [In Persian]
[3] Yang X, Li S, Zhao Y. The Computer-Aided Design of Pass for the High Extremely Thin Wall Elliptical Welded Pipe. In2009 Second International Symposium on Knowledge Acquisition and Modeling 2009 Nov 30 (Vol. 3, pp. 164-166). IEEE.
[4] HUANG YM. Elasto-plastic finite element analysis of squaring circular tube. Transactions of Nonferrous Metals Society of China. 2008 Jun 1;18(3):665-73. doi: 10.1016/S1003-6326(08)60116-8
[5] Bayoumi LS. Cold drawing of regular polygonal tubular sections from round tubes. International Journal of Mechanical Sciences. 2001 Nov 1;43(11):2541-53.
[6] Leu DK, Wu JY. Finite element simulation of the squaring circular tube. The International Journal of Advanced Manufacturing Technology. 2005 Apr;25(7):691-9.
[7] Abrinia K, Farahmand HR. An upper bound analysis for the reshaping of thick tubes with experimental verification. International Journal of Mechanical Sciences. 2008 Feb 1;50(2):342-58. doi: 10.1016/j.ijmecsci.2007.06.007
[8]   Zheng B, Shu G, Wang J, Gu Y, Jiang Q. Predictions of material properties in cold-rolled austenitic stainless steel tubular sections. Journal of Constructional Steel Research. 2020 Jan 1;164:105820.
[9]   Arzandeh H, Moslemi Naeini H, Tajdari M, Mazdak S, Kiuchi M, Effect of Flower Pattern on Uniform Distribution of Force on Rollers in Reshaping of Cold Roll Forming. Journal of Applied and Computational Sciences in Mechanics, 2022. 34(1):49-60. doi: 10.22067/jacsm.2022.74655.1090 [In Persian]
[10] Kiuchi M, Naeini HM, Shintani K. Computer aided design of rolls for reshaping processes from round pipes to “channel-type” pipes. Journal of Materials Processing Technology. 2001 Apr 25;111(1-3):193-7. doi: 10.1016/S0924-0136(01)00511-8
[11] Mazdak S, Naeni HM, Sheykholeslami MR, Kiuchi M, Validi H. The effect of the roller profile on cave-in defect in reshaping process by considering nonlinear combine strain hardening. Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture. 2022 Apr;236(5):509-21. doi: 10.1177/09544054211036895
[12] Moslemi Naeini H, Kiuchi M, Shintani K, Kitawaki T, Kuromatsu R, A new design method of rolls for reshaping process of non-circular pipes. Iranian Journaol Of Science & Technology, 2003:521-534. doi: 10.22099/IJSTM.2013.983
[13] Salmani Tehrani M, Khodabande Shahraki R, Validi H. Analysis of roll wear in reshaping using finite element simulation. Journal of Simulation and Analysis of Novel Technologies in Mechanical Engineering. 2009 Jun 22;2(1):1-9. [In Persian]