A Six Sigma Project for Reducing the Color Variation of the Monitor Materials

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Journal of Korean Society for Quality Management > Volume 29(3); 2001 > Article

Journal of Korean Society for Quality Management 2001;29(3): 166-.

모니터 소재의 색상편차 개선을 위한 6시그마 프로젝트

홍성훈, 반재석

전북대학교 산업공학과

A Six Sigma Project for Reducing the Color Variation of the Monitor Materials

ABSTRACT

This paper considers a six sigma project for reducing the color variation of the monitor materials in a chemical plant. The project follows a disciplined process of five macro phases: define, measure, analyze, improve, and control (DMAIC). A process map is used to identify process input variables. Three key process input variables are selected by using an input variable evaluation table; a melting pressure, a coloring agent, and a DP color variation. DOE is utilized for finding the optimal process conditions of the three key process input variables. The sigma level of defects rate becomes a 4.58 from a 2.0 at the beginning of the project.

Key Words: DMAIC;DOE;Input Variables;Process Map;Sigma Level;Six Sigma;