| 应用MCEWMA控制图监视刀具磨损过程 |
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| 引用本文： | 崔敬巍,谢里阳,刘晓霞.应用MCEWMA控制图监视刀具磨损过程[J].东北大学学报(自然科学版),2007,28(5):708-711. |
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| 作者姓名： | 崔敬巍 谢里阳 刘晓霞 |
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| 作者单位： | 东北大学,机械工程与自动化学院,辽宁沈阳,110004 |
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| 摘 要： | 为了有效地利用控制图技术,用指数加权滑动平均方法,对由于刀具磨损导致轴尺寸精度呈线性趋势变化进行预测,提出了应用MCEWMA控制图监视刀具磨损过程.在刀具使用期内,将刀具磨损及由刀具磨损带来的随机波动视为共同原因,对生产过程进行监视,避免了使用传统控制图时,产生频繁报警的弊端.最后,运用具体例子,说明控制图参数选择准则.
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| 关 键 词： | 刀具磨损 统计质量控制 控制图 预测 指数加权滑动平均 |
| 文章编号： | 1005-3026（2007）05-0708-04 |
| 收稿时间： | 2006-06-12 |
| 修稿时间： | 2006-06-12 |
Application of MCEWMA Control Chart in Tool Wear Monitoring Process |
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| CUI Jing-wei,XIE Li-yang,LIU Xiao-xia.Application of MCEWMA Control Chart in Tool Wear Monitoring Process[J].Journal of Northeastern University(Natural Science),2007,28(5):708-711. |
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| Authors: | CUI Jing-wei XIE Li-yang LIU Xiao-xia |
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| Institution: | (1) School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110004, China |
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| Abstract: | To utilize a control chart effectively,the exponentially weighted moving average(EWMA) method is introduced in to forecast the linear variation of shaft diameter resulting from tool wear.Based on EWMA,the MCEWMA control chart is proposed to monitor tool wear process,i.e.,the moving center-line EWMA.In the whole service life of a tool used in machining process,the tool wear and relevant random fluctuation are both regarded as the common causes in tool wear monitoring process,thus avoiding the frequent false alarm when using conventional control chart.An example is given to illustrate the criterion for selecting chart parameters. |
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| Keywords: | tool wear statistical quality control control chart forecasting MCEWMA |
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