Arifin MuhammadTorik Muhammad2025-09-102025-04-25APAhttps://repository.polibatam.ac.id/handle/PL029/4316In the world of manufacturing, laser marking has been very widely used, because of its advantages compared to other marking processes. The laser marking process is one of the most widely used non-contact marking methods in the industry because of its high speed and precision. There are several types of laser marking on the market but what is discussed here is fiber laser marking. Fiber Laser Marking Machine is an industrial equipment used to print and mark various types of materials with good beam quality. The marking process uses non-thermal technology that generates high-intensity waves using fiber optic cables. This machine can mark metal materials and some other non-metal materials. However, the quality of marking is often affected by various factors that cause defects, namely Man, Machine, Environment, Methode, Measurenment and Material. This research focuses on reducing defects in the laser marking process by identifying common types of defects found such as yellowish, laser slant, blurr, double layer, NG laser. The methodology used includes analysis with optimized process parameters using the application of process statistical controls. The results of the study are expected to show a significant decrease in the level of defects through the implementation carried out. The study provides practical recommendations for the industry to reduce defects in the laser marking process and improve overall production efficiency.Laser MarkingDefectImprovementArticleNIM3222211039NIDN0020068902NIDK116161KODEPRODI20406#Teknik Elektronika Manufaktur