Ural State Federal University (Ekaterinburg, Russia):

Erpalov M. V., Junior Scientific Fellow

Bogatov A. A., Dr. Eng., Prof., Head of the Chair of Metal Forming

E-mail (common): omd@mtf.ustu.ru

Pervouralsk New Tube Works (Pervouralsk, Russia):

Systerov S. V., Head of the shop No. 4 for oil range tubes

Konfratyeva G. N., Leading Research Engineer

The work is devoted to the technology of upsetting the ends of pumping and compression pipes at the SMS Meer hydraulic press and the problems of putting this technology into operation in the conditions of Pervouralsk New Tube Works. Technological scheme of tube ends upsetting in the hydraulic press is explained. Dimension range of the tubes with upset ends manufactured at Pervouralsk New Tube Works is displayed; it includes the tubes with external diameter 60.3–88.9 mm and wall thickness 5.0-6.5 mm. meeting the requirements of national (GOST 633–80 and GOST R 53366–2009) and American (API 5CT) standards. The ways of further development of upsetting technology, directed on improvement of the quality of finished products and lowering of operation expenses are presented. The results of tool testing after its nitridizing are shown; the surface hardness of extrusion stem and forming die increased by 1.4 times. The works connected with development of the new tool pass design, optimization of its manufacturing method and choosing of the efficient lubrication (Thermosyn SGV и Deltaforge F-578) are observed.

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2. Tkachenko V. A., Shevchenko A. A., Strizhak V. I., Pikiner Yu. S. Truby dlya neftyanoy promyshlennosti (Pipes for oil industry). Moscow : Metallurgiya, 1986. 256 p.

3. Ostrenko V. Ya., Ermolov I. V. Tekhnologicheskie osobennosti vysadki trub v zakrytykh matritsakh (Technological peculiarities of pipe-end upset in closed dies). Metallurgicheskaya i gornorudnaya promyshlennost = Metallurgical and Mining Industry. 1968. No. 1. pp. 33–36. 

4. GOST 633-80. Truby nasosno-kompressornye i mufty k nim. Tekhnicheskie usloviya (State Standard 633-80. Tubing pipes and their couplings. Technical requirements). Introduced: January 01, 1983. Moscow : Publishing Hoyuse of Standards, 2010. (in Russian) 

5. GOST 53366-2009. Truby stalnye, primenyaemye v kachestve obsadnykh ili nasosno-kompressornykh trub dlya skvazhin v neftyanoy i gazovoy promyshlennosti. Obshchie tekhnologicheskie usloviya (State Standard 53366- 2009. Steel pipes, applied as stand or tubing pipes for oil and gas industry wells. Basic technological requirements). Introduced: 2010-03-01. Moscow : Publishing House of Standards, 2010. (in Russian) 

6. Erpalov M. V., Bogatov A. A., Kunina A. S. Issledovanie i sovershenstvovanie tekhnologii proizvodstva nasosno-kompressornykh trub s vysazhennymi kontsami (Research and improvement of production technology of tubing pipes with pipe ends). Materialy III Mezhdunarodnoy interaktivnoy nauchno-prakticheskoy konferentsii (Materials of the III International interactive scientifi c-practical conference). Ekaterinburg, 2013. pp. 90–97. 

7. Ling K., Liu Y.-K. Study on forming process of the oil pipe with upset ends. International Conference on Mechanical, Material Engineering. Shiyan (China), 2013. pp. 648–651.

8. Afonin V. K., Ermakov B. S., Lebedev E. L. et al. Metally i splavy : spravochnik (Metals and alloys : reference book). Under the editorship of Yu. P. Solntsev. Saint Petersburg : Professional, 2003. 1090 p. 

9. Rybakova L. M., Kuksenova L. I. Struktura i iznosostoykost metalla (Structure and wear resistance of metal). Moscow : Mashiostroenie, 1982. 212 p.