Advertisement

Metallurgist

, Volume 62, Issue 9–10, pp 1039–1047 | Cite as

Development and Introduction of Technology and Equipment for Multiple Drawing of Copper Alloy Thin-Walled Tube on a Long Movable Mandrel Without Intermediate Heat Treatment

  • R. Z. Akchurin
  • A. A. Bogatov
  • D. R. SalikhyanovEmail author
  • A. S. Ovchinnikov
Article
  • 41 Downloads

Thin-walled and extremely thin-walled tubes made of copper alloys, i.e., brass grades L96, L68, L63, LANKMts, and the bronze grades BrOF6.5-0.15, BrOF4-0.25, are in great demand in the aircraft, shipbuilding, automotive, defense, diesel-locomotive building, and instrument-making industries. A promising manufacturing method is multiple drawing on a long movable mandrel without intermediate heat treatment due to such advantages as high total elongation ratios (λ = 3.0–6.0), simplicity of the equipment of the flow line, high productivity equal to 1200–1600 m/h, as well as good pipe surface quality and size precision. These advantages of the new method of manufacturing cold-deformed pipes make it possible to reduce the cyclic nature of manufacturing and processing costs. The work provides a methodological basis of theoretical analysis and design of rational routes for manufacturing colddeformed pipes by multiple deformation without intermediate heat treatment. As an example, the results are presented for calculation of three-fold drawing of thin-walled pipes made of brass grades L96, L68 and L63. Research results are used in the development of innovative technology for pipe manufacture from copper alloys at the PAO Revda Non-Ferrous Metal Processing Plant using a highly efficient three-fold drawing line on a long movable mandrel. One of the versions for line equipment layout is provided.

Keywords

pipe drawing on a long movable mandrel pipe multiple drawing without intermediate heat treatment brass bronze cold-deformed pipes pipes for heat exchangers alternate deformation metal damage flow line equipment 

References

  1. 1.
    M. Z. Ermanok and L. S. Vatrushin, Drawing Nonferrous Metals and Alloys [in Russian], Metallurgiya, Moscow 91988).Google Scholar
  2. 2.
    I. Gupta, R. R. Mishra, M. Nagaraj, and S. Rajesha, “An overview on modes of failure of brass components,” Int. J. Mech. and Prod. Eng., 2, No. 5, 33–36 (2014).Google Scholar
  3. 3.
    The Brasses-Properties and Applications. CDA, Copper Development Association, Pub 117, Section 1–8 (2005).Google Scholar
  4. 4.
    E. M. Rubio, A. M. Camacho, R. Perez, and M. M. Marin, “Guidelines for selecting plugs used in thin-walled tube drawing processes of metallic alloys,” Metals, 7, No. 12, 1–18 (2017).Google Scholar
  5. 5.
    A. A. Bogatov, A. V. Toropotov, V. M. Vlasov, et al., Electric Welding of Cold-Deformed Tubes [in Russian], Metallurgiya, Moscow 91991).Google Scholar
  6. 6.
    A. A. Bogatov, Metal Mechanical Properties and Failure Models: Textbook for High Schools [in Russian], GOU VPO UGTU-UPI, Ekaterinburg (2002).Google Scholar
  7. 7.
    A. A. Bogatov, G. A. Orlov, and A. A. Pupyshev, “Etsuy of periodic tube drawing by a finite element method,” Izv, Vyssh. Ucgebn. Zaved., Tsvet. Met., No. 3, 49–55 (2005).Google Scholar
  8. 8.
    V. L. Kolmogorov, Mechanics of Metal Forming: Textbook for High Schools [in Russian], Izd. UGTU-UPI, Ekaterinburg (2001).Google Scholar

Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • R. Z. Akchurin
    • 1
  • A. A. Bogatov
    • 1
  • D. R. Salikhyanov
    • 1
    Email author
  • A. S. Ovchinnikov
    • 2
  1. 1.FGAOU VO B. N. El’tsin Federal UniversityEkaterinburgRussia
  2. 2.UMK, UGMK-OTsM, PAO Revda Plant for Nonferrous Metal ProcessingTechnical University UGMKRevdaRussia

Personalised recommendations