南京信息工程大学学报
南京信息工程大學學報
남경신식공정대학학보
JOURNAL OF NANJING UNIVERSITY OF INFORMATION SCIENCE & TECHNOLOGY
2015年
2期
142-148
,共7页
谭壮%李国发%许彬彬%王松%朱光
譚壯%李國髮%許彬彬%王鬆%硃光
담장%리국발%허빈빈%왕송%주광
数控机床%故障模式%影响及危害性分析( FMECA)%模糊评判%制造可靠性
數控機床%故障模式%影響及危害性分析( FMECA)%模糊評判%製造可靠性
수공궤상%고장모식%영향급위해성분석( FMECA)%모호평판%제조가고성
CNC machine%failure mode,effects and criticality analysis( FMECA)%fuzzy evaluation%manufacturing reliability
以数控机床零部件的制造工艺为研究对象,对其实施改进的制造工艺FME?CA,通过梯形模糊数评判的方法确定出工艺FMECA中风险优先数的排序,利用模糊综合评判方法确定出工艺系统的风险等级,有效地找出薄弱工艺环节并采取改进措施,从而提高数控机床零部件制造工艺可靠性。
以數控機床零部件的製造工藝為研究對象,對其實施改進的製造工藝FME?CA,通過梯形模糊數評判的方法確定齣工藝FMECA中風險優先數的排序,利用模糊綜閤評判方法確定齣工藝繫統的風險等級,有效地找齣薄弱工藝環節併採取改進措施,從而提高數控機床零部件製造工藝可靠性。
이수공궤상령부건적제조공예위연구대상,대기실시개진적제조공예FME?CA,통과제형모호수평판적방법학정출공예FMECA중풍험우선수적배서,이용모호종합평판방법학정출공예계통적풍험등급,유효지조출박약공예배절병채취개진조시,종이제고수공궤상령부건제조공예가고성。
The improved Failure Mode,Effects and Criticality Analysis( FMECA) is carried out for manufacturing process of Computer Numerically Controlled ( CNC ) machine parts. The risk priority numbers in manufacturing processes are sequenced by trapezoidal fuzzy evaluation. Then the fuzzy comprehensive evaluation is carried out to get the risk grades of the manufacturing processes,through which we can find out the weak link for improvement to increase manufacturing process reliability of CNC parts.