抄録
A proposed mathematical model is presented for predicting the residual stresses caused by ball burnishing. Effects of change in three burnishing parameters which are burnishing speed, burnishing force, and burnishing feed on the residual stress of 6061-T6 aluminum alloy are investigated. The residual stress distribution in the surface region due to ball burnishing is determined using a deflection-etching technique. To reduce the number of experiments required and build the mathematical model for these variable, Response Surface Methodology (RSM) is used. In addition, variance analysis and an experimental check are conducted to determine the prominent parameters and the adequacy of the model. The residual stress of the burnished surface is influenced by the three parameters used. The burnishing force plays a major role and its effect can be considered as the most important input parameters. The proposed model, that offering good correlation between the experimental and predicted results, is useful in selecting suitable parameters for ball burnishing process.
