การพัฒนาระบบการจัดซื้อวัตถุดิบในโรงงานผลิตเหล็กแผ่นรีดร้อน / เมธิกานต์ ชุติพงศ์สิริ =Improvement of Raw Material Purchasing System in Hot Rolled Mill /Methikan Chutipongsiri
This studied project is Improvement of raw material purchasing system in Hot Rolled Mill, the objective is to improve the process of purchasing of main raw materials in the mill. The main raw materials are scrap and pig iron which mainly import from oversea over 500,000 metric tons per year in order to manage the purchased volume to be closed to the actual consumption both uptrend and downtrend of business, also in high demand and low demand situation so that to increase the capability of competitive advantage. Knowledge of forecasting is applied to forecast sale volume by using the sale history record. To use the several simple methods of forecast and compare, then select the most accurate method to do experiment and compare between to use the data of sale forecast method and budget plan estimation method which be determined by sale department and management. The result of forecast compared to the latest year, the assumption is purchasing could properly perform according to the requirement as per the result of that forecast. We found that the raw material inventory level at the end of the month is lower fluctuated. In the month that there is the highest volume is also lower. The average inventory per month is also decreased. At the same time, there is no any month that the inventory level is negative because of to determine an appropriate minimum stock level. There is no material shortage to support production, to save cost of raw material. In addition, to increase cash flow, delivery the goods to the customers in time as per their requirement, also to reduce the deteriorated raw material from long keeping.
