The Application Of DFSS In The Research And Development Of Gasoline High Pressure Pump In YF Company

Design For Sigma Six is a scientific research and development innovation method,usually used in the early development of the product process.Design for six sigma research innovative ideas and a set of rigorous and efficient use of R & D,statistical tools to accurately understand and grasp the customer demand for new products of robust design,making the products of Six Sigma quality level at low cost.At the same time,the product has the ability to resist all kinds of interference,even if the use of harsh environment or the operator toss,the product can still meet the needs of customers.Six Sigma design is an effective method to improve the quality and reliability of the product,reduce the cost and shorten the development cycle.In this paper,the application of six sigma Design and performance optimization of gasoline high-pressure pump in the early design stage,meet the performance requirement of the vehicle engine plant of gasoline high-pressure pump,Comply with DFSS’s DICOV strict R & D ideas,first collected from the voice of the customer(VOC)to effectively obtain the voices of customers,understand the real needs the customer,using the Kano model,the division of customer needs dimension,using the Pairwise comparison method,assessment of customer demand importance index;product,process characteristics and then through the QFD function expansion method into an enterprise can understand,carry out conceptual design,mathematical model,parameter optimization design of experiment(DOE),the system optimization,and using Monte Carlo evaluation of process capability.Design products that meet key product / process characteristics to improve product design quality,safety and reliability.Finally,verify the effectiveness of the design on the vehicle.The results show that after the implementation of the DFSS project,the quality of the oil pump can be effectively improved,can meet the requirements of domestic market,the number of customer complaints straight down,improve customer satisfaction;at the same time,the cultivation of logical thinking research and development team,improve their professional level.