Modeling the surface characteristics of shot peened 2024 aluminum alloy

الملخص EN

The present research aims to study the effect of shot peening time (SPT) using metal balls (stainless steel balls) on surface roughness ,hardness and residual stresses .the above first two parameters (roughness, hardness) were measured before and after shot peening, While the third parameter i.

e.

the residual stresses were calculated based on the original yield stress of the ALUMINUM ALLOY 2024.

The above three parameters were empirically modeling using the curve fitting equations The following conclusions can be drawn from this work : 1- Surface roughness increases with increasing the (SPT). 2- The hardness increases with increasing SPT (For the current study an improvement of 36.75 %) using shot peening of 2024-Al alloy. 3- The compressive residual stresses increases with increasing SPT (for the present study an improvement of 11 % using shot peening of 2024 –Al alloy.