Advertisement

Drawing: Flat Strip, Round Bar and Tube

  • Amit BhaduriEmail author
Chapter
Part of the Springer Series in Materials Science book series (SSMATERIALS, volume 264)

Abstract

Drawing: definition, purposes, demerits and fields of application. Drawing stress with friction for work-hardening and non-strain-hardening strip drawn through wedge-shaped dies. Frictionless ideal drawing stress. Maximum reduction of area in a single pass with and without friction. Drawing stress with friction for strip drawn through cylindrical dies. Treatments of work metal prior to drawing, such as heat treatment (recrystallization annealing, patenting), surface preparation (pickling, surface conditioning or coating), and pointing or chamfering. Drawing equipments, such as draw bench, multiple-die continuous and single-die block drawing machines, stepped-cone multiple-die drawing machine. Conical converging drawing die, describing internal profile geometry and functions of different zones of die nib. Drawing of rod and wire: dry drawing and wet drawing. Drawing load and power with friction, and with and without back tension, with and without consideration for work hardening. Frictionless ideal drawing stress without back tension. Maximum reduction of area in a single drawing pass: for non-strain-hardening rod or wire with and without friction and back tension, and for strain-hardening rod or wire with friction and back tension. Redundant deformation, redundant work factor and its effect on drawing stress. Variation of drawing stress with die-cone angle, describing optimum cone angle, dead-zone formation and shaving mode of flow. Tube drawing using fixed plug, floating plug or mobile mandrel. Stress and maximum reduction of area in a single pass for plug drawing and mandrel drawing. Tube sinking and stress for sinking. Stability condition of a floating plug. Application of slip-line field to frictionless plane-strain strip drawing through wedge-shaped dies. Upper-bound solution for frictionless plane-strain strip drawing through wedge-shaped dies, with an example. Problems and solutions.

References

  1. Avitzur, B.: Metal Forming: Processes and Analysis, TMH edn, pp. 159–162, 172. McGraw-Hill, Inc., New York (1977), Tata McGraw-Hill publishing Company Limited, New Delhi (1968)Google Scholar
  2. Bland, D.R., Ford, H.: The calculation of roll force and torque in cold strip rolling with tensions. Proc. Inst. Mech. Eng. London 159, 144–153 (1948)CrossRefGoogle Scholar
  3. Caddell, R.M., Atkins, A.G.: Trans. ASME J. Eng. Ind. 90, 411–419 (1968)CrossRefGoogle Scholar
  4. Dove, A.B. (ed.): Steel Wire Handbook, vol. 4. The Wire Association International (1980)Google Scholar
  5. Gokyü, I., Ōkubo, T.: Studies on the roller die (in English). Tetsu To Hagane Overseas 4(1), 45–52 (1964)Google Scholar
  6. Hosford, W.F., Caddell, R.M.: Metal Forming, pp. 162–163. Prentice-Hall Inc, Englewood Cliffs, NJ (1983)Google Scholar
  7. Hosford, W.F., Caddell, R.M.: Metal Forming Mechanics and Metallurgy, 4th edn, p. 169. Cambridge University Press, New York (2011)CrossRefGoogle Scholar
  8. Kalpakjian, S., Schimid, S.R.: Manufacturing Processes for Engineering Materials, 5th edn, p. 321. Licensees of Pearson Education in South Asia, Dorling Kindersley (India) Pvt. Ltd., New Delhi (2011)Google Scholar
  9. McGannon, H.E. (ed.): The Making, Shaping and Treating of Steel, 8th edn. United States Steel Corporation, Pittsburgh, PA, pp. 782–783, 787, 796–798 (1964)Google Scholar
  10. Pernis, R., Kasala, J.: The influence of the die and floating plug geometry on the drawing process of tubing. Int. J. Adv. Manuf. Technol. 65, 1081–1089 (2013)CrossRefGoogle Scholar
  11. Pomp, A.: The Manufacture and Properties of Steel Wire (Stahldraht), Translated from the German by Bernhoeft, C.P. The Wire Industry Limited, London (1964)Google Scholar
  12. Rowe, G.W.: Principles of Industrial Metalworking Processes, p 135. Edward Arnold (Publishers) Ltd., UK, and CBS Publishers and Distributors, India (1977)Google Scholar
  13. Sachs, G., Baldwin, W.M.: Stress analysis of tube sinking. Trans. ASME 68, 655–662 (1946)Google Scholar
  14. Sachs, G., Lubahn, J.D., Tracy, D.P.: Drawing of thin-walled tubing with a moving mandrel through a single stationary die. J. Appl. Mech. Trans. ASME 11, 199–210 (1944)Google Scholar
  15. Wistreich, J.G.: Proc. Inst. Mech. Eng. 169, 654 (1955)CrossRefGoogle Scholar
  16. Wright, R.N.: Wire Technology 4, 57–61 (1976)Google Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  1. 1.Department of Metallurgical and Materials EngineeringIndian Institute of Technology KharagpurKharagpurIndia

Personalised recommendations