PROPOSED QUALITY IMPROVEMENT OF ACRYLIC RESIN PRODUCTS WITH SIX SIGMA (AT PT. XYZ)

Abstract

PT. XYZ is a manufacturing company that produces various types of resins. One of them is acrylic resin, acrylic resin is the raw material for loading solvent base paints such as those used in the automotive paint manufacturing process. In acrylic resin, defects are usually found such as dirty resin, yellow resin color and rust drum. This study aims to determine the value of the sigma level on acrylic resin products before repair, analyze the factors that cause defects in acrylic resin products and provide suggestions for improvements with the Six Sigma approach. So that defects that occur in acrylic products can be reduced or even eliminated, With a six sigma approach in analyzing and calculating data using the DMAIC concept (define, measure, analyze, improve and control), the total acrylic resin defects in the last six months have an average by 8.94% with a type of gross resin defect of 89.88%, drum rust of 95.80% and yellow resin color of 100.00%. While the average sigma value on acrylic resin before repair was 3.15 with DPMO damage of 81,636 for a million productions. Based on the fishbone diagram, the causes of dirty resin defects, yellow resin color, rust drums are from human factors, materials, machines, methods and the environment. Based on the 5W + 1H method, suggestions can be given to companies in the form of periodic checks on machines, making a schedule for cleaning the production area, holding training or training for employees and carrying out supervision from superiors. Keywords: Quality Control, Six Sigma, DMAIC and 5W+1H 1