The purpose of this paper is to propose a case on a professional manufacturer of shank heating upsetting machines was studied. To increase the delivery accuracy rate (DAR) by the defines, measure, analysis, improve, and control (DMAIC) improvement techniques of Six Sigma was introduced in this research form mechanical and electrical industry in central Taiwan. In this research have three phases. First phase is applying delivery capability index (DCI) in DAR. A cause-effect diagram will be used as an analysis tool in this research which to locate the root causes of the problems in the second phase. Finally, the influential factors that need to be improved most will be located by the quality function deployment (QFD) method. In the results to show that ten key objectives need to improve by cause-effect diagram; and then, it is important to know that outsourcing is the most effect important factor to be improved from QFD methodology. Moreover, in order to formulated standard operation procedure (SOP) through international organization for standardization (ISO) documents concerning control of outsourcing manufacturing. After successfully applied the Six Sigma project, the delivery accuracy capability of the case under study increased from 1.80 sigma to 2.79 sigma and the DAR also improved from 61.79% to 90.15% in D. company of mechanical and electrical industry. This methodology can be easily used for similar applications for any manufacturing domain.
Information-An International Interdisciplinary Journal,15(8),3343.