Experimental Mechanics

, Volume 22, Issue 1, pp 26–30 | Cite as

Brief investigation of induced drilling stresses in the center-hole method of residual-stress measurement

Induced drilling stresses of low-speed and ultra-high-speed drills which ar used with the center-hole method of surface-residual-stress measurement were compared for several stress-relieved metal specimens
  • Michael T. Flaman


Results of experiments to measure induced drilling stresses in the center-hole method of residual-stress measurement are described. Five specimens of different metals were specially prepared in an attempt to relieve malerial residual stress. Surface-residual-stress measurements were then performed by the center-hole method with a conventionally used (low-speed) end mill and an ultra-high-speed drill. For each specimen, the relieved strains due to the hole drilling were significantly higher for the low-speed end mill than for the ultra-high-speed drill. Preliminary conclusions are that the ultra-high-speed drill would be much superior to the conventional low-speed end mill in the measurement of residual stress by the center-hole method.


Mechanical Engineer Residual Stress Drilling Fluid Dynamics Hole Drilling 
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Copyright information

© Society for Experimental Mechanics, Inc. 1982

Authors and Affiliations

  • Michael T. Flaman
    • 1
  1. 1.Ontario Hydro Research DivisionCanada

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