Application statistical quality control P-Chart for short production in 3D printied COVID-19 mask production

Abstract

The increasing transmission of the corona virus (covid 19) in the world has caused tremendous impacts on various things such as health, the economy and various other aspects of life. One of the causes of the increase in the spread of this virus is due to the lack of understanding of the public in the use of good masks. Many people use cloth masks that can be washed several times, but have a weakness that the face area is not tightly closed, resulting in leaks both in the nose area near the eyes and on the chin. We, from a team from the production systems laboratory of the Industrial Engineering Departement Widyatama University, provide solutions for the community by making masks that are produced using 3D Print. The production of COVID-19 masks using a filament fused 3D printer was carried out in September 2020 using PETG material because this plastic is food grade and does not require special treatment such as a heated chamber. To control the quality of the production process in making this 3D mask, a standardized P-chart is used. At the beginning of production there is an eratic but controllable failure rate so that it decreases in subsequent periods. Standardized P-charts can be used for small medium busines without the use of special computing tools and applications. © 2021 Karadeniz Technical University. All rights reserved.