Experimental Mechanics

, Volume 53, Issue 7, pp 1117–1126 | Cite as

High Speed Blanking: An Experimental Method to Measure Induced Cutting Forces

  • C. Gaudillière
  • N. RancEmail author
  • A. Larue
  • A. Maillard
  • P. Lorong


A new blanking process that involves punch speed up to 10 ms −1 has obvious advantages in increased productivity. However, the inherent dynamics of such a process makes it difficult to develop a practical high speed punch press. The fracture phenomenon governing the blanking process has to be well understood to correctly design the machine support and the tooling. To observe this phenomenon at various controlled blanking speeds a specific experimental device has been developed. The goal is to measure accurately the shear blanking forces imposed on the specimen during blanking. In this paper a new method allowing the blanking forces to be measured and taking into account the proposed test configuration is explained. This technique has been used to determine the blanking forces experienced when forming C40 steel and quantifies the effect of process parameters such as punch die clearance, punch speed, and sheet metal thickness on the blanking force evolution.


High speed blanking Blanking force measurement Hopkinson device 



This study was carried out with the financial support of CETIM.


  1. 1.
    Lascoe OD (1988) Handbook of fabrication processes. ASM InternationalGoogle Scholar
  2. 2.
    Nee JG (1998) Fundamentals of tool design, 4th edn. Soc Manuf EngGoogle Scholar
  3. 3.
    Smith DA (1990) Die design handbook, 3rd edn. Soc Manuf EngGoogle Scholar
  4. 4.
    Zener C, Hollomon JH (1944) Effect of strain rate upon plastic flow of steel. J Appl Phys 15(1):22–32CrossRefGoogle Scholar
  5. 5.
    Johnson W, Slater RAC (1964) A comparison of the energy required for slow speed and dynamic blanking using an improved linear motor. Proc Inst Mech Eng 179(1):257Google Scholar
  6. 6.
    Johnson W, Slater RAC (1965) Further experiments in quasi-static and dynamic blanking of circular discs from various metals. Proc Inst Mech Eng 180:163Google Scholar
  7. 7.
    Johnson W, Travis FW (1965) High-speed blanking of copper. Proc Inst Mech Eng 180:197–204Google Scholar
  8. 8.
    Slater RAC, Johnson W (1967) The effects of temperature, speed and strain-rate on the force and energy required in blanking. Int J Mech Sci 9(5):271–276CrossRefGoogle Scholar
  9. 9.
    Stock TAC, Wingrove AL (1971) The energy required for high-speed shearing of steel. J Mech Eng Sci 13(2):110–115CrossRefGoogle Scholar
  10. 10.
    Rogers HC (1979) Adiabatic plastic deformation. Annu Rev Mater Sci 9:283–311CrossRefGoogle Scholar
  11. 11.
    Dowling AR, Harding J, Campbell JD (1970) Dynamic punching of metals. J Inst Met 98:215–224Google Scholar
  12. 12.
    Zurek AK (1994) The study of adiabatic shear band instability in a pearlitic 4340 steel using a dynamic punch test. Metall Mater Trans A 25(11):2483–2489CrossRefGoogle Scholar
  13. 13.
    Roessig KM, Mason JJ (1999) Adiabatic shear localization in the dynamic punch test, part i: Experimental investigation. Int J Plast 15(3):241–262zbMATHCrossRefGoogle Scholar
  14. 14.
    Kolsky H (1964) Stress waves in solids. J Sound Vib 1:88–110zbMATHCrossRefGoogle Scholar
  15. 15.
    Zhao H, Gary G (1995) A three dimensional analytical solution of longitudinal wave propagation in an infinite linear viscoelastic cylindrical bar. Application to experimental techniques. J Mech Phys Solids 43(8):1335–1348MathSciNetzbMATHCrossRefGoogle Scholar

Copyright information

© Society for Experimental Mechanics 2013

Authors and Affiliations

  • C. Gaudillière
    • 1
  • N. Ranc
    • 1
    Email author
  • A. Larue
    • 1
  • A. Maillard
    • 2
  • P. Lorong
    • 1
  1. 1.Arts et Métiers ParisTech, PIMM, UMR CNRS 8006ParisFrance
  2. 2.CETIM, Metal Forming groupSenlisFrance

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