Book Review: Making Civics Count: Citizenship Education for a New Generation

In this paper, multipoint dimple sheet forming process parameters is investigated in terms of optimization using finite element technique and Taguchi method. Dimples are produced using punch and die press braking operation. Dimple sheet formed using roller is very complex due to nonlinear structure, costly and widely used in construction, in many industrial applications. In this work, Ansys simulation software is used for accurate and critical understanding effect of sheet thickness, diameter of dimple, depth of dimple and distance between dimples in dimple forming process. The major objective is to determine the effect of the process parameters to obtain the optimal multipoint forming design of the dimple sheet. The hemispheric punch chosen for dimple is based on commonly used for various dimple sheet applications. Process parameters are sheet thickness, diameter of dimple, depth of dimple and distance between dimples has been analyzed using Taguchi method. The material selected for this work is structural steel. The results obtained indicate that the parameter sheet thickness is the most effective one on forming force. Tensile test of optimal parameter, result predicts that the dimple sheet strength is greater than that of the plain sheet.