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Vol 138
Pages:
43-49
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RUS
Article

Shot peening of drilling rods

Authors:
E. L. Korotkikh
Date submitted:
1992-09-24
Date accepted:
1992-11-19
Date published:
1993-12-28

Abstract

Drill rods made of hexagonal hot-rolled steel of 55C2, 3OHGSFA, 12XHZA, 30XMA, 28XGNZM, 40X2AUF and others break during perforator drilling. The rods break in the areas of shoulder, shank, cone part, as well as along the length of the main part of the hexagon. The most frequent breakages occur in the bump zone, which is obtained by hot-drilling on boring machines.

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References

  1. Belkin M.Ya., Venzhega A.S., Sologub V.A. Increase of reliability of machine parts. Donetsk: Donbass, 1964. 97 p.
  2. Ivanov K.I., Varich M.S., Dusev V.I. et al. Drilling Technique for the Development of Mineral Deposits. Moscow: Nedra, 1974. 407 p.
  3. Korotkikh E.L. Technological ways of the parts durability increase at the repair of the mining equipment / Leningrad Mining Institute. L., 1986. 44 p.
  4. Korotkikh E.L., Korchemkin A.E. Progressive technology of restoration of wear parts at the repair of mining machines / Leningrad Mining Institute. L., 1988. 95 p.
  5. Korotkikh E.L. Shot-blasting unit for hardening of drilling rods // Information leaflet No. 905 LCSTI. L., 1991. 4 p.
  6. Kudravtsev I.V. Surface naklep for strength and durability increase of machine parts. M.: Mashinostroenie, 1969. 100 p.
  7. Papshev D.D. Strengthening technology in machine-building (methods of surface-plastic deformation). M.: Mashinostroenie, 1986. 49 p.
  8. Increase of cyclic strength of materials by methods of surface plastic deformation / Edited by V.I. Gladkovsky / Perm Polytechnic Institute. Perm, 1974. 120 p.
  9. Saverin M.M. Shot-blast riveting. Theoretical bases and practice of application. Moscow: Mashgaz, 1955. 312 p.
  10. Torbilo V.M. Processing methods by surface plastic deformation / Perm Polytechnic Institute. Perm, 1975. 48 p.

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