Abstract.This thesis is to study the improvement of the system preparation of parts. For use in automobile Due to the failure of the parts that don"t match the order assembly. Because the factory is a factory assembled car truck. With the production characteristics under the brand of Ford and Mazda has produced various. Many models by employees and production assembly is the hub cap. Which is the trademark of the manufacturer listed on the piece. Parts assembly does not match the manufacturer. This project is updated by the improvement of preparation of parts before assembly By using the theory of failure mode and effects analysis (Failure mode and effects analysis) system error protection (Poka-Yoke) ทฤษฎีกา distribution products of various types. The delivery is set pieces (Kit - supply) and delivery model, respectively. The results showed that after the improvement ปรับปรุงระบบ preparation of car parts before assembling the errors of parts assembly does not match the manufacturer or product owner resulting in reduced time and reduce the cost of the project. Can also reduce the error from the level 94 cost percentage 10 also project can be applied to other problems that may occur in similar systems. To protect the product quality fell to the customers. Which will result in the satisfaction and confidence of customers to the product.
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