COMPREHENSIVE MODEL OF THE MICRO-HARDNESS OF DIAMOND BURNISHED 41CR4 STEEL SPECIMENS

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  • TITLE: COMPREHENSIVE MODEL OF THE MICRO-HARDNESS OF DIAMOND BURNISHED 41CR4 STEEL SPECIMENS
  • AUTHOR(S): V. P. Dunchev
  • ABSTRACT: Diamond burnishing (DB), based on severe plastic deformation of the surface layer, improves the surface integrity (SI) of metal components and thus, enhances their operating properties. The micro-hardness is one of the mechanical characteristics of the SI. The increased micro-hardness due to DB is a precondition for improved wear and fatigue crack resistance of the treated component. The article presents a comprehensive experimental mathematical model which predicts the micro- hardness distribution in depth from the surface depending on the diamond insert radius and burnishing force. The selection of the significant governing factors is based on previous study. The experimental model is based on a fourth-order one-dimensional polynomial whose variable is the depth and the coefficients are functions of the two governing factors
  • PAGES: 25-
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