Reducing Defect Value in the Agricultural Machinery Component Manufacturing Process

Abstract

This research aims to provide guidelines for reducing defect in the production and decreasing the defect value of Frame Com Front NC131 products for case study. The study of the production process of the company's products, found that the Frame Com Front NC131 product, specifically the T. 1.0 mm. researchers supplementary work type. The highest scrap value was 304,800 Baht per month. The research team applied the principles of Six Sigma (DMAIC) and ECRS technique to improve the production process. The implemented strategies to reduce product waste are as follows: 1) Determining a reserve distance cutting for raw material for maker.
2) Specifying inspections of raw materials from all suppliers for every model. 3) Designing the new operational manuals and providing training to employees. 4) Designing and creating JIG to check the width of supplementary work channels on both the front and rear sides of the workpiece. The result found that, the research achieved a reduction in scrap value by 235,200 Baht per month, representing a percentage decrease of 77.17% and decreased 27.5 second per piece in the production process, representing a percentage of 12.33%.