Ensuring high-quality machining of the inner surface of the electric welded pipes during deburring in the mill line
| Authors: Shibanov A.V. | Published: 11.07.2023 |
| Published in issue: #7(760)/2023 | |
| Category: Mechanical Engineering and Machine Science | Chapter: Technology and Equipment for Mechanical and Physico-Technical Processing | |
| Keywords: electric welded pipe, internal deburring machine rod, internal deburring tool, cutting knife, shear-bar knife |
The paper presents results of reviewing literary and patent sources on design and technological solutions in grinding (notching) the internal burr in the electric welded pipes production. Based on the review data, optimal designs were determined of the internal deburring stabbing tool located on the deburring machine rod. Studies were carried out on stabbing the internal burr in the production of pipes with the diameter of 60.3...73.0 mm in the pipe electric welding unit line using various methods and design solutions. Quantitative indicators were analyzed of designs of the internal deburring machine rods with the deburring function. Based on results of the practical studies of various methods for dividing the internal burr into parts in the mill line, the optimal option for designing the internal deburring machine rod was determined. This design makes it possible to reduce the number of emergency stops at clogging with long segments of the remote burr by the mill transport line, increase coefficient of the equipment (mill) effective operation and the yield of the useful products, as well as ensure the high-quality washing out of small segments of the removed internal burr inside the pipe with a high-pressure water jet at the flushing operations.
References
[1] Shibanov A.V., Grubyy S.V. Optimization of the cutting tool for internal flash removing operations in the production of electric-welded tubes. Izvestiya vysshikh uchebnykh zavedeniy. Mashinostroenie [BMSTU Journal of Mechanical Engineering], 2021, no. 8, pp. 39–49, doi: http://dx.doi.org/10.18698/0536-1044-2021-8-39-49 (in Russ.).
[2] Micali L., Anesi A., Alberini G. et al. Device for adjusting cutting depth for removal of weld beads inside profile sections such as tubes and the like. Patent US 9486868B2. Appl. 08.12.2014, publ. 08.11.2016.
[3] Shirai T. Bead treatment device of resistance welded tube inner face. Patent JP 2001105184A. Appl. 12.10.1999, publ. 17.04.2001.
[4] Oishi K., Sato A. Internal surface beads cutting device for electric resistance welded tube. Patent JPH 1133814A. Appl. 22.07.1997, publ. 09.02.1999.
[5] Takagi Kh., Kono K., Kodjima S. et al. Cutting device for bead on internal surface of seam welded pipe. Patent JPH 04300115A. Appl. 27.03.1991, publ. 23.10.1992.
[6] Fukay T., Vakatsuki M., Matsumoto K. et al. Method and apparatus for removing internal burrs formed inside an electric-welded pipe. Patent JPS 57194814A. Appl. 22.05.1981, publ. 09.06.1986.
[7] Gleason P.J. Deburring welded pipe. Patent US 7695224B2. Appl. 31.01.2008, publ. 06.08.2009.
[8] Morisono M., Kuwabara K. Inner bead trimmer of electric resistance welded tube. Patent JPH 09103910A. Appl. 06.10.1995, publ. 22.04.1997.
[9] Micali L., Alberini G., Anesi A. et al. A device for adjusting cutting depth for removal of weld beads inside profile sections such as tubes and the like. Patent EP 2893999A1. Appl. 03.12.2014, publ. 13.02.2019.
[10] Engler B., Will H. Procedure and device for the generation of short chips at the internal burring of straight head welded pipes. Patent EP 0464331B1. Appl. 18.04.1991, publ. 14.12.1994.
[11] Engler B., Will H. Method of and device for obtaining short shavings trimmed from the seams inside longitudinally welded pipes. Patent US 5216792A. Appl. 02.06.1992, publ. 08.06.1993.
[12] Tsuda K., Morikava K., Sakamoto V. et al. Device for removing burr inside the pipe. Patent JPS 61192409A. Appl. 20.02.1985, publ. 27.08.1986.
[13] Numadzhiri K., Uryu S., Izumi K. et al. A device for removal of burr inside a pipe. Patent JPS 6445512A. Appl. 17.08.1987, publ. 20.02.1989.
[14] Nishimoto H. A welded pipe grate remover. Patent JPS 58143908A. Appl. 23.02.1982, publ. 26.08.1983.
[15] Sheleg V.K., Danilchik S.S. Analiz metodov i sposobov struzhkodrobleniya v protsesse tokarnoy obrabotki [Analysis of methods and ways of chip breaking during turning]. V: Mashinostroenie. Vyp. 27 [In: Mavhine building. Vol. 27]. Minsk, BNTU, pp. 73–80. (In Russ.).
