The Study Of Stock Optimization In L Glasses Company

Stock management is one of the most important parts of production-stock system in a production factory and its performance will directly linked with the efficiency of operation and profits.In this paper author takes study for the stock of metal raw frames from Lux company which is the biggest glasses company,combined with its industry and knowledge of stock management to optimize the stock controlling and replenishment strategy.There are 5 steps on this study:1.Overview the operation of Lux metal plant and analysis the stock quantity,stock combination,age of stock,turnover and replenishment strategy to concluded the problem and reasons;2.analysis the impact reasons and summarize which is the most critical reason,by percent analysis found the planning method and forecast method are the most important defeat reasons.3.Based on the safety stock model and economic production quantity model to evaluate the raw frames stock and simulation to considering the operation and sales situation to formulated the best solution to control total stock;4.Based on the quarterly forecast method the analysis the weakness and use the average forecast and index smooth forecast the do simulation,and then result to evaluate the modules to selection.5.Apply improvement to ensure the optimization including adopt ABC classification to customize stock method on different products,apply the average moving method to increase the percent of sales forecast,introduce the synchronous manufacturing system to modify the MRP logic of planning for raw frames and components,and production improvement.4.Assessment and risk management,after all action take effect,the stock days of Ray-Ban(Sun)brand reduced from 19.8days to 9.4days and the total amount from 952 kpcs to 492 kpcs,meanwhile,the age of stock,combination,missing index improved a lot that to be anevidence of an effective stock improvement.The conclusion is that modeling to study and guide the stock reduction in production company based on the stock management theory that will be a benchmark for other companies in glasses industry and also a fundamental solution for further improvement of Lux company.