Evaluation and Improvement in Company Manufacturing Processes based on the Six-sigma Methodology

Subject Areas : مدیریت

Alireza Alinezhad ¹ , Parviz Mohammadpour ² , Nima Esfandiari ³

1 - Faculty of mechanical and industrial engineering, Islamic Azad University of Qazvin
2 - Faculty of mechanical and industrial engineering, Islamic Azad University of Qazvin
3 - Faculty of mechanical and industrial engineering, Islamic Azad University of Qazvin

Received: 2009-04-06 Accepted : 2009-06-01 Published : 2009-09-06

Keywords: CTQ, FMEA, Pareto, Six Sigma, DMAIC Cycle, RPN, Customer Satisfaction,

Abstract :

Six-sigma methodology is known as a comprehensive and quantitative method for implementing improvement in the organizations. In this paper, attempts are made to implement this method at SANAM Company. To this end, first, we will consider the process of manufacturing plastic products based on the costumer perspective. Then, we will explain six-sigma methodology and DMAIC cycle. Finally, the problems and failures in the production line as elicited through brain storming meetings and using FMEA and Pareto method through MINITAB software are reported. Then, we will choose the related aspects and find the current sigma level of the company. Finally, suggestions are made to improve the production process based on the selected aspects and the new sigma level of the company will be calculated and we will see that the sigma level and the company’s profit was increased saliently.