A Research On Productivity Improvement Of Test Process For Company A Based On Six Sigma Theory

Since the 21st century,the competition of global power supply industry slowly became white hot,in addition,the impact of the financial crisis and the trade war between China and USA both have had a huge impact on the global economy,at the same time,the new market growth point has not yet formed,how to improve the competitiveness of the enterprise itself has become the strategic focus of the company's top management.The test process implements the test of the electrical performance of the customer's products,directly responsible for the product quality,and is a key role in process of power supply manufacturing.The capacity of testing process is determined by the number of equipment,equipment available rate,testing capacity and product yield,now,the shortage of testing process capacity has become a bottleneck restricting the production capacity of company A.Compared with other industries,the test equipment for power supply is expensive,how to improve the testing process capacity by improving the equipment available rate,testing capacity and product yield without increasing the equipment investment will play a key role in improving the company's production capacity,at the same time,it is also an effective means to reduce costs and enhance the competitiveness of the enterprise itself.Six Sigma management theory was born in the 1980 s,it was first proposed by Motorola and used to improve product defects,and achieved great success,Six Sigma respects data,focuses on processes,now it has been widely used in all walks of life to solve various practical problems,and gradually developed into a business management strategy to enhance the core competitiveness of enterprises;Lean production emphasizes "just in time production(JIT)",it improves the efficiency of business process by reducing waste,and aims to achieve quick results.This paper takes Six Sigma theory as the guiding ideology,uses the method and tools of Six Sigma theory,through DMAIC five stages,and combined with the concept of lean production management,aiming at the actual problem of low production capacity of testing process in company A,then analyze and research problem through three aspects of available rate,testing capacity and product yield.First of all,in the Define stage,define the improvement objectives of the project basing on the data performance of the existing testing process capacity and the expected production demand;then,in the Measure stage,identify the key factors affecting the equipment available rate,testing capacity and product yield through analyzing and sorting the data;then,in the Analyze and Improve stage,through combining Six Sigma theory and the concept of lean production,the corresponding solutions are given for these key factors;finally,verify the effectiveness of the solution to improve the test capacity through implementation effect,and in the Control stage,through formulating corresponding management solutions to ensure the sustainability of the implementation effect,so as to effectively guarantee the improvement of the test process capacity.The research process and method of this paper not only solves the problem of low testing capacity of the 5G power supply production line studied in this paper,but also provides reference and guidance for new products and mass production products to improve the test process capacity,and also provides some reference for the relevant enterprises to improve the test process capacity.