Powder Metallurgy and Metal Ceramics

, Volume 53, Issue 9–10, pp 522–528 | Cite as

Orbital Forging of Sintered Porous Billets

  • G. A. Baglyuk
  • V. G. Kurikhin
  • S. P. Gozhii

Features of the deformation of sintered porous billets during orbital forging are considered. A schematic of an orbital forge with a roller as a punch is shown. To study orbital forging processes, cylindrical samples made of iron powder and its mixture with 1% of graphite compacted under 550, 700, and 850 MPa and sintered at 1150°C were used. The variation of the relative density and radial strain of billets during orbital forging with the axial strain and the variation of the strain with the shape factor of porous billets are described. It is shown that the total force of orbital forging is much lower (by a factor of 3.0–4.5) than the load needed to form similar billets by conventional free upsetting.


orbital forging porous billets porosity densification local strain plastic zone 


  1. 1.
    L. T. Kryvda, Theory and Practice of Orbital Forging [in Ukrainian], Avanpost, Kiev (1998), p. 179.Google Scholar
  2. 2.
    I. S. Aliev and V. A. Matviichuk, “Development of local metal forming methods,” Obrab. Met. Davl., No. 1(19), 201–206 (2008).Google Scholar
  3. 3.
    V. A. Matviichuk and I. S. Aliev, Improvement of the Local Rotary Forming Processes Based on Analysis of the Deformability of Metals [in Russian], Donbass Gos. Mashinostr. Akad., Kramatorsk (2009), p. 268.Google Scholar
  4. 4.
    S. P. Gozhii, A. V. Klisko, and A. I. Nosenko, “Intensification of forming structural elements by orbital forging with active friction forces,” Visn. Nats. Tekh. Univer.Khar. Polytekh. Inst. ,” Issue 45, 113–119 (2011).Google Scholar
  5. 5.
    G. A. Baglyuk, “Free upsetting of heated porous cylindrical specimens,” Powder Metall. Met. Ceram., 27, No. 7, 532–535 (1988).CrossRefGoogle Scholar
  6. 6.
    V. A. Evstratov, Metal Forming Theory [in Russian], Vyshcha Shkola, Kiev (1981), p. 248.Google Scholar
  7. 7.
    H. A. Kuhn and B. L. Ferguson, Powder Forging, Metal Powder Industries Federation, Princeton, New Jersey (1990), p. 270.Google Scholar
  8. 8.
    R. Narayanasamy, V. Senthilkumar, and K. S. Pandey, “Some features on hot forging of powder metallurgy sintered high strength 4% titanium carbide composite steel preforms under different stress state conditions,” Mater. Design, No. 29, 1380–1400 (2008).Google Scholar
  9. 9.
    Yu. G. Dorofeev and V. V. Sinel’shchikov, “Strain and cracking behavior of preheated cylindrical powder blanks,” Powder Metall. Met. Ceram., 19, No. 1, 20–23 (1980).Google Scholar

Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  • G. A. Baglyuk
    • 1
  • V. G. Kurikhin
    • 1
  • S. P. Gozhii
    • 1
  1. 1.Frantsevich Institute for Problems of Materials ScienceNational Academy of Sciences of UkraineKievUkraine

Personalised recommendations