OPTIMIZATION OF PLASTIC THREAD PRODUCTION USING RESPONSE SURFACE METHODOLOGY IN PT. XYZ

Abstract

Every company is trying to optimize everything they could to decrease the cost, time, and other factors they want to minimize. In fact, there are always defects in manufacturing company. The different among them are only the quantity and the factors that might cause the defects. Sadly, defects lead to a bad quality management. PT. XYZ is currently producing plastic thread with lots of defect. To find out the factors that related with the production and defects, some methods can be used; one of them is Pairwise Comparison. By conducting pairwise Comparison, factors related and the rank of the factors can be figure out. To conduct the pairwise comparison, interviews with some experts are conducted to give the weight for the calculation. In order to optimizing the productions, the number of defects must be decreased. In this research, the method used is Response Surface (RSM). To optimize the production, defects data and experiments are collected and conducted. Response Surface Method can reduce around 7% of defects from the current composition by giving the optimization solution of the materials compositions which are 80% PP + 10% Calcium + 30% Recycle.