Abstract—The main objective of writing review on warpage optimization of injection molded plastic part is to investigate the optimization techniques used for minimization of warpage by optimizing process parameters

The main objective of writing review on warpage optimization of injection molded plastic part is to investigate the optimization techniques used for minimization of warpage by optimizing process parameters during injection molding. Highly complex design of plastic products now a days demands dimensional accuracy and good surface finish. As the injection molded part cools, uneven distribution of stresses is set up due to uneven cooling. These stresses warp the part and affect the dimensional accuracy of the part. So as to keep the warpage minimum, accurate prediction of optimum process parameters is very important. This review paper considers warpage as a main defect in the injection molded part. This paper presents an idea about research undertaken or completed on optimization of process parameters to minimize warpage, optimization techniques used, role of Finite Element Analysis (FEA) and most significant process parameters affecting the warpage.