earticle

영어

This paper considers a six sigma project for increasing the productivity of the resistance standardization of winding process in manufacturing firms. The project follows a disciplined process of five macro phases : define, measure, analyze, improve and control(DMAIC). The need of customers is used to identify the critical to quality(CTQ) of project. And a process map is used to identify process input factors of CTQ. Two key process input factors are selected by using an input factor evaluation of teams; a tension and a revolution per minute(RPM). DOE is utilized for finding the optimal process conditions of the two key process input factors. The six sigma level of defects rate becomes a 5.80 from a 3.98 at the beginning of the project.