Reducing waste in the manufacturing of bicycle tyres by using Six Sigma

Abstract

This research aims to reduce waste in the production process to meet the target to find ways to prevent defects occurring in the curing process and to improve preventative measures available today. The waste found in the curing process label the edges are blamed blistering edge under inflated tires cover on low. After brainstorming to find factors that affect the defect by using techniques Six Sigma (Six Sigma).The work five main steps in performing a job defining the problem, measuring, analyzing problems, improved control and severity, surveillance and monitoring disorders of the process. It was found that the raw materials are the main parameters that cause much waste as possible. Therefore, we have developed an approach to improve the material by adding a preliminary inspection, and design documents to determine work procedures. The benefits of this research can reduce the waste that occurs in the curing process of the target by reducing the rate of 8.0 % an average of 7.3% in a survey from January to May 2557 is an average rate of 6.0% In a survey in June 2557 equivalent to saving manufacturing cost 135,045 baht per month. The rate of decline is likely to be quite good, that make employees feeling and effort to cooperate in the reduction of waste in the production process.