Abstract
It is important to reduce variability and establish the technology to improve the stability of a manufacturing process: a capsule filling process in this case study. For such purposes, robust design approach can be applied. ln this study, parameter design was used to optimize the conditions in a capsule filling process. Dynamic S/N ratio was used to evaluate the robustness of the generic function in this filling process. As a result, it was estimated that an improvement of 3.36 db in S/N ratio could be expected. The best signal factor level for target was determined from the ideal relationship, y=β,M, where y, β, and M are the target value, constant and signal factor respectively. The loss function was used for economic evaluation.
