REDUCING LEAKING PROBLEMS OF MOTORCYCLE RADIATORS USING DMAIC IN PT.X

Abstract

PT X. as a company that produces motorcycle radiator is having a quality issue. The defective percentage of the product has exceeded the allowed percentage which is 5%. Most of the defective radiator is leaking, so the company needs to reduce the number of leaking radiator. To solve the problem, a research using Six Sigma DMAIC is done. The first step of DMAIC is Define which in this step the problem and the factors that are critical to quality are identified. Measure is the second step in DMAIC where the current quality is measured. The third step is Analyze, in this step; the causes of leaking are shown using Fishbone Diagram, and FMEA the causes are the wrong flux concentration and the lack of inspection of the parts. Improvement is the fourth step where the improvements that are determined from the previous step are applied to the system. The last step of DMAIC is control; this step will show the result of the improvement, the result is the reduction of defective percentage from 5.63% to 3.77 %. From the result of the DMAIC, it can be concluded that the DMAIC has successfully reduce the number of leaking radiator.