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Plastic strain analysis of the machined surface region using fine grid etched by photoresist technique

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Abstract

The photoresist technique was used to generate a mesh of fine grid pattern to determine the plastic strain distribution in the subsurface of machined workpieces. For this purpose rectangular grids measuring 20 μm by 20 μm with a line thickness of 5 μm were etched on workpieces of inconel-718 nickel-base superalloy and then machined under plane-strain condition. Subsurface plastic strain distribution was determined from distorted grids after machining using standard analytical methods. Using this technique, it was possible to generate a finer rectangular grid size of 5 μm by 5 μm with a 2-μm line thickness.

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References

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Authors and Affiliations

  1. Industrial and Manufacturing Engineering Department, California State Polytechnic University, 91768-4063, Pomona, CA

    A. B. Sadat (Assistant Professor)

  2. Department of Mechanical Engineering, University of Texas at Arlington, 76019, Arlington, TX

    M. Y. Reddy (Graduate Student)

Authors
  1. A. B. Sadat
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  2. M. Y. Reddy
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Sadat, A.B., Reddy, M.Y. Plastic strain analysis of the machined surface region using fine grid etched by photoresist technique. Experimental Mechanics 29, 346–349 (1989). https://doi.org/10.1007/BF02321420

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  • DOI: https://doi.org/10.1007/BF02321420

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