SPC统计技术流程控制--stevexinli

–Mar.10,20012培训目的TrainingGoal目的--助你获得SPC的知识及技巧OurGoal--TohelpyougainrelevantSPCknowledge&skills.–Mar.10,20013z什么是SPC及SPC的益处WhatisSPCandbenefits.z数据的收集及测量Datacollectionandmeasurement.z使用反应计划解决问题Troubleshootingusingreactionplansz流程的稳定&能力(CP和CPK)ProcessStabilityandCapability.(CPandCPK)培训内容TrainingAgenda–Mar.10,20014什么是SPC?WhatisSPC?利用统计技术如控制图去分析流程或其产物,以采取适当的行动去达致及维持一个受统计技术控制的状态以及改善流程能力.Theuseofstatisticaltechniquessuchascontrolchartstoanalyzeaprocessoritsoutputssoastotakeappropriateactionstoachieveandmaintainastateofstatisticalcontrolandtoimprovetheprocesscapability.z–Mar.10,20015Outofcontrol失控Trends趋势Shifts偏移ControlChart控制图统计技术Statistical流程Process控制ControlLCLUCL什么是SPC?WhatisSPC?–Mar.10,20016Cause—EffectDiagram因果图（鱼骨图）Effect果Cause因什么是SPC?WhatisSPC?–Mar.10,20017ParetoDiagram柏拉图16.7%16.7%50.0%16.7%0.0%20.0%40.0%60.0%80.0%100.0%DefectivesScratchPlugholeOpenShort什么是SPC?WhatisSPC?–Mar.10,20018–DetermineKeyProductCharacteristics介定关键的产品特性–DetermineKeyVariables介定关键的变量–PlantheMatrixofValidationTests计划确认测试的矩阵DOE实验设计什么是SPC?WhatisSPC?–Mar.10,20019Functionaffected被影响的功能PotentialFailuremode潜在缺陷模式-PotentialEffect潜在影响-PotentialCause潜在原因-DesignControl设计控制ActionPlan行动计划Result结果FMEA缺陷模式与后果分析什么是SPC?WhatisSPC?–Mar.10,200110什么是SPC?WhatisSPC?SPC数据=流程的声音SPCdata=thevoiceoftheprocess!统计技术Statistical收集及整理数字化的事实数据Collection&arrangementofnumericalfacts.Data!控制Control预防,预测,监管Prevention.Prediction.Regulation.流程Process执行一件工作的一连串步骤Seriesofstepstoperformataskz是否一组图表?Isitasetofcharts?z是否一个警告系统?Isitawarningsystem?z是否一个预防性方法?Isitapreventivemethod?–Mar.10,200111使用SPC目的UsingSPCObjectives我们的SPC目的是为你提供一个有利于持续改善的工具:OurSPCobjectivesistoprovideyouwithatoolforcontinualimprovementthathelpsto:y将流程变异减致最少minimizeprocessvariation.y消除流程的错败eliminatefailuresinourprocesses.y将产品能力尽量提升maximizeproductcapability.y加强客户满意程度increasecustomersatisfaction.y–Mar.10,200112SPC价值SPCValue少报废Lessscarp少返工Lessrework少停机Lessdowntime更佳利润Betterprofit更佳市场信誉Goodreputationinmarketplace!惠亚集团ViasystemsGroup–Mar.10,2001SPCforOperators-Version2.1–Mar.10,200113SPC价值SPCValue更佳产品质量Betterqualityproduct更多可靠产品Morereliabledelivery可以信赖的供应商Asuppliertheycancounton客户Customers–Mar.10,2001SPCforOperators-Version2.1–Mar.10,200114SPC价值SPCValue少挫败感及无聊时间Lessfrustration&downtime更能控制工作Morecontrol更能对流程及产品问题作正确决定Abilitytomaketherightdecisionaboutprocessofproductproblems能生产更优值的产品Betterproductcomingfromtheareinfrontofme你You–Mar.10,200115SPC如何帮忙?HowSPCCanHelp生产中DuringProductionz发生问题时(特别成因)SPC数据会发出讯号SPCdatasendasignalthatthere’saproblem(specialcause).z我们采取纠正行动防止问题Wetakecorrectiveactiontopreventdefects.将来FortheFuturezSPC数据提供一个流程变异的历史记录SPCdataprovideahistoryofthevariationintheprocess.z我们改善流程以减少一般原因导致的变异Weimprovetheprocesstoreducecommoncausevariation.–Mar.10,200116统计技术及控制图StatisticsandControlCharts如何运用统计技术于控制图?Howdoweusethesestatisticsoncontrolcharts?z收集数据--数目或量度某物Collectdata--countormeasuresomething.zz于控制图上画上数值Plotthedataonthecontrolchart.z或...OR...z计算统计数值于控制图上画上数值Calculateastatisticandplotthestatisticonthechart.–Mar.10,200117SPC步骤:WWH什么数据需要收集?Whatdatadoweneed?z为什么需要收集数据?Whydoweneedtocollectdata?z如何得到数据?Howwillwegetthedata?z何时收集数据;多久收集一次?Whendowecollectit;howoften?z流程中哪处收集数据?Whereintheprocessdowegetthedata?z谁收集数据?Whocollectsthedata?收集数据Collectdata–Mar.10,200118什么数据需要收集?Whatdatadowecollect?收集数据Collectdata客户要求:功能;外观CustomerRequirementsFunctionalAesthetic产品特性ProductFeatures流程变数ProcessVariables–Mar.10,200119为什么需要收集数据?Whyshouldwecollectthedata?收集数据Collectdata监控变异Tomonitorvariation.尽早指出流程问题Toidentifyprocessproblemsasearlyaspossible.为什么?Why?–Mar.10,200120如何收集数据?Howdowecollectthedata?如何?How?收集数据Collectdata我们需要一个测量系统Weneedameasurementsystem.z方法--技巧,工具,经培训的员工Method--technique,tool,trainedpeoplez记录--数据收集表格,表达数据的格式(即控制图)Record--datacollectionsheet,formattopresentdata(i.e.,controlchart)zz计划--负责人,收集数据地点,频率,时间Plan--who,where,howoften,when–Mar.10,200121何时及何处收集数据?When&wheredowegetthedata?那一个比较好?Whichisbetter?流程中作测量Measureon-line最后检查Inspectaten