| Home | E-Submission | Sitemap | Editorial Office |  
Journal of Korean Society for Quality Management > Volume 31(1); 2003 > Article
Journal of Korean Society for Quality Management 2003;31(1): 123-.
용접조건 개선으로 불량률 감소 -6시그마 프로세스를 중심으로-
Reducing the Rate of Defective to Improve a Welding Condition -Based on Six Sigma Process-
This paper considers a six sigma project for reducing the defects rate of the welding 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 critical to quality(CTQ) of project. And a process map is used to identify process input factors of CTQ. Four key process input factors are selected by using an input factor evaluation of teams; an interval of welding, an abrasion, an electric current and a moving freely. DOE is utilized for finding the optimal process conditions of the three key process input factors. Another one key input factor improved to welding machine. The six sigma level of defects rate becomes a 2.01 from a 1.61 at the beginning of the project.
Key Words: CTQ;DMAIC;DOE;Process map;Sigma level;Six Sigma;
PDF Links  PDF Links
Full text via DOI  Full text via DOI
Download Citation  Download Citation
Related article
Editorial Office
13F, 145, Gasan digital 1-ro, Geumcheon-gu, Seoul 08506, Korea
TEL: +82-2-2624-0357   FAX: +82-2-2624-0358   E-mail: ksqmeditor@ksqm.org
About |  Browse Articles |  Current Issue |  For Authors and Reviewers
Copyright © Korean Society for Quality Management.                 Developed in M2PI
Close layer
prev next