Analysis of Quality Improvement of Camshaft type K50 on the Reamer Process using DMAIC and FMEA Methods

Abstract

The company of this researchis one of the largest auto and motorcycle parts manufacturers in Indonesia. To support the productivity of demand from customers, Companyis divided into 2 plants, namely the Cikarang plant and the Karawang plant. While the production process is divided into several departments, one of these departments is production. In its duties, production functions to control production targets that have been set by the company and minimize rejects from production, with one of them producing K50 type Camshaft parts. Because in the Camshaft K50 part there are still many rejects, it is necessary to make improvements in the work process in order to create good effectiveness and efficiency. The percentage of reject reamer types that do not enter the pitch is 83%, drill blows 9%, and drill breaks 8%. Improving the quality of the K50 Camshaft is done using the DMAIC method. The purpose of this research. At stage D (Define) what is done is to determine the Critical to Quality (CTQ) tofind out what are the physical quality characteristics of the Camshaft K50. In the M (Measure) stage, measurements are made using a Pareto diagram to find out the highest frequency of defects which later need improvement. The expected result is to minimize product rejection.