| Since the production process optimization research has been one of the key research content in the manufacturing industry at home and abroad. At the beginning of this century the vigorous development of the domestic manufacturing industry, production process optimization research was carried out in the enterprise.This paper takes The Shenyang Aircraft Corporation produces the special long rod drilling reamer manufacturing process as the research object, based on lean six sigma theory.Researchers analyzed the reason that the long production cycle and low on-time delivery ratio.Combined with the actual production of the root causes of these reasons is studied.Make plan and solve the problems existing in the production process.Optimizing the production process, meet the needs of The Shenyang Aircraft Corporation.Investigate the current production process of long pole reamer.Collect the production data, draw the value flow chart.Clearly show the current production process of long pole reamer.Exposed in the production process between process waiting time is long, butt welding defects, the heat treatment deformation, cylindrical grinding efficiency is low.Using statistical analysis tools to quantify the problem of the influence degree of the production process, determine the key point.Used the DMAIC of the lean six sigma,improve the model.In-depth analysis and study the key problems affecting long pole drill reamer manufacturing process.Found in these key problems of process method, process parameters and personnel, equipment and material factors.Through the statistical analysis to quantify the influence of various factors, find out the key influencing factors.And key factors for making the corresponding improving methods.Through improvement, the original production process was optimized.The effect of long pole drill reamer manufacturing process optimization, from the production cycle, value stream, plan adjustment, quality improvement and financial income and so on five aspects has been analyzed.This paper established the long pole drill reamer to optimize the effectiveness of the production process to be confirmed. |