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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

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Abstract

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.

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References

  1. Mathar, J., “Determination of Initial Stresses by Measuring the Deformation Around Drilled Holes,” Trans. ASME,56 (1934).

  2. Rendler, N.J. and Vigness, I., “Hole-drilling strain-gage Method of Measuring Residual Stresses,” Paper presented at the Annual Meeting of SESA at Detroit, MI (May 1966).

  3. Bush, A.J. and Kromer, F.J., “Simplification of the Hole-Drilling Method Residual Stress Measurement,” 27th Annual ISA Conference Paper, New York, NY (Oct, 9–12, 1973).

  4. Beaney, E.M., “Accurate Measurement of Residual Stress on Any Steel Using the Center Hole Method,” CEGB Report RD/B/N3568 (Dec. 1975).

  5. Vaughn, R.L. and Krueck, R.T., “Recent Developments in Ultra-High Speed Machining,” Tool Engineer (April 1960).

  6. “Instruction Manual,” Model RS-200-01 Milling Guide, Micro-Measurements, Measurements Group, Vishay Intertechnology Inc., PO Box 27777, Raleigh, NC 27611.

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Authors and Affiliations

  1. Ontario Hydro Research Division, M8Z 5S4, Ontario, Toronto, Canada

    Michael T. Flaman (SESA Member)

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  1. Michael T. Flaman
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Additional information

This study was done at Ontario Hydro and the University of Toronto, where the results were submitted as partial-completion requirements for a Master of Engineering degree.

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Flaman, M.T. Brief investigation of induced drilling stresses in the center-hole method of residual-stress measurement. Experimental Mechanics 22, 26–30 (1982). https://doi.org/10.1007/BF02325700

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  • DOI: https://doi.org/10.1007/BF02325700

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