Process reliability modeling based on characteristic mapping

Process reliability modeling is of great significance to guarantee the reliability of the manufacturing process. This paper will describe how to establish the relationship between reliability index of process resource and process parameters by studying the characteristic mapping of manufacturing process, which pays more attention to the process instead of product. Firstly, the key characteristics of process will be determined, whose levels can be designated appropriately according to the requirements of process reliability. Secondly, reliability modeling method will be employed to catch the significant factors affected the process reliability, and the relationship between process elements, processing parameters, product reliability and product functions were analyzed based on Analytic Network Process. Finally, the algorithm and procedure is discussed for manufacturing process reliability modeling, and interrelated process parameters are selected to improve reliability of the product.