Title of article :
Early failure analysis of machining centers: a case study
Author/Authors :
Wang، نويسنده , , Yiqiang and Jia، نويسنده , , Yazhou and Jiang، نويسنده , , Weiwei، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2001
Abstract :
To eliminate the early failures and improve the reliability, nine ex-factory machining centers are traced under field conditions in workshops. Their early failure information throughout the ex-factory run-in test is collected. The field early failure database is constructed based on the collection of field early failure data and the codification of data. Early failure mode and effects analysis is performed to indicate the weak subsystem of a machining center or the troublemaker. The distribution of the time between early failures is analyzed and the optimal ex-factory run-in test time for machining center that may expose sufficiently the early failures and cost minimum is discussed. Suggestions how to arrange ex-factory run-in test and how to take actions to reduce early failures for machining center is proposed.
Keywords :
Machining center (MC) , Run-in test , Early failure mode and effects analysis (EFMEA) , Reliability
Journal title :
Reliability Engineering and System Safety
Journal title :
Reliability Engineering and System Safety