| In marketization industrial production,fast growing market demand will drive the rapid expansion of production capacity in supply side.Supply market competition will increase when the growing speed of market demand going down,and meanwhile,high-quality products will required by the consumers.Technological upgrading and process improvement aimed at decreasing quality risk will become the key action for the company to get a foothold in the competition.The previous way of trial-and-error by experience cannot meet the lead time and quality level requirement from the market any more.This thesis try using the risk manager theory of project management and P-FMEA method,to guide the quality risk decrease action of W bolt tightening process.The action need a upgrade of the production machine,so the identification the risk factor of the old process is the first task,and then quantitative and list risk,the action priority was made according to the risk level and all these results was used as an important input to the design of new process design.Second,when the new process upgrade was finished,using the same method to analyses the risk factor again,and then compare the risk level to check how much process upgrade decrease the quality risk.After a enough batch mass production,the feedback information of unqualified product can also proof the result of the quality risk decrease action,and the P-FMEA methodology also be proof that could make help in risk management of process upgrade action,and also the project management.For the factory,using risk management theory of project management and P-FMEA to guide the action of process upgrade,can decrease the quality risk,improve the production efficiency,lower the cost,and also can establish a standard process of quality risk management in process upgrade,and be a reference to other products’process upgrade action.Finally improve the company management level and increase the competitive power of in the industry. |
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