Plastic Part Optimization for Warpage using Taguchi Method

The main objective of 'warpage optimization' of injection moulded plastic part is to investigate the optimization techniques used for minimization of warpage by optimizing process parameters during injection moulding. Highly complex design of plastic products nowadays demands dimensional accuracy and good surface finish. As the injection moulded 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 paper considers warpage as a main defect in the injection moulded part. This paper will present an idea about research undertaken or completed on optimization of process parameters to minimize warpage, optimization techniques used, role of Moldflow software and most significant process parameters affecting the warpage.