Increasing Production Efficiency in Manufacturing of Fire Tube Boiler.

Abstract

This research has the objective to increase the efficiency of production. The researcher studied the production process of a Fire Tube Boiler in a boiler factory. collect data and analyze data Using 7 quality control tools (7 QC Tools) used include. Check sheets used to collect data. Show results with graphs The Pareto chart sorts those problems from highest to lowest. and fishbone diagram to find the cause and find solutions to the problems from the study found Waste generated in the production process is caused by Imperfection of the weld (Welding Defect) when using the type of imperfection of the weld. Let's analyze using the Pareto charts. The results of the analysis revealed that it was caused by porosity, lack of fusion, and incomplete fusion. Therefore, the researcher has made improvements to improve the most defect problems first, namely, porosity, lack of fusion, and incomplete fusion. Factors affecting the welding procedures according to the requirements to adjust the parameters of welding, the researcher designed a 3³ Factorial design to determine the optimized factor level. and perform inspection during welding process. The results of the solution were found from the original problem. The amount of porosity with waste of 177 films was reduced to 104 films accounted for 41%, Lack of fusion waste of 92 films reduced to 72 films accounted for 22% And incomplete fusion the amount of waste 69 films reduced to 63 films, accounted for 9%