Cmk-计算表格表格文件下载.xls

Cmk-计算表格表格文件下载.xls

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K=ABS2AVE（X）-TU-TL/（TU-TL）=#DIV/0!

公差缩小标准偏差：

=0.75*STDEV（X1X50）=#DIV/0!

过程更改机器能力指数：

Cmk=（1-k）*（T/8）=#DIV/0!

设备大修如需要可采取以下措施（Cmk1.67时）异地生产调整中心（分布中心与标准中心趋于重合）Cmk长期停产放宽公差（需经顾客同意）Cm定期测定改用更高精度设备Cm顾客要求其它：

统计/日期：

批准/日期：

表单编号:

1611162126313641463737.00437.00837.01237.01637.0237.02437.02837.03237.036分布中心1611162126313641463737.00437.00837.01237.01637.0237.02437.02837.03237.036分布中心CmkREPORTWorkstationPartNameQualityCharacteristicsProcessNameDrawingNo.NominalMachineModelSamplingQty.USLMachineNumberDateLSLIndividualReadings12345678910ConditionNewPODistributionCenter#DIV/0!

CL0.0000NewToolingMachineCapabilityIndex（Cmk1.67）NewMachineCOV:

k=ABS2AVE（X）-TU-TL/（TU-TL）=#DIV/0!

TightenToleranceStandardDeviation:

ProcessChangeMachineCapabilityIndex:

MajorBreakdownPleasetakethefollowingactionswhenCmk1.67LocationChangeShiftprocesscentertoCLascloseaspossibleCmkStopProductionRequestcustomertoloosentoleranceCmkPeriodicalInspectionChangetomoreprecisiontoolingorequipmentCmkCustomerRequirementOthers:

Prepare/Date:

Check/Date:

ReportNo.:

AMachineCapabilityStudyisnot,strictlyspeaking,partofStatisticalProcessControl,asitdoesnotdetectthepresenceorabsenceofspecialcauses.Instead,itprovidesasnapshotofoneparticularcomponentofaprocess,oftenamachine（hencethetitle）.Thiscouldwellbeofuseinthecontextof,forexample,carryingoutatrialrunonamachinebeforeagreeingtobuyit（liketestdrivingacar）.AMachineCapabilityStudyisessentiallyawayofestablishingthecapabilityofthecomponent/machinebyassessinghowitoperates:

overaveryshortperiodoftimeinanidealenvironmentByanidealenvironment,wemeanoneinwhich:

themachineissetascloseaspossibletoitsoptimumvaluesitisbeingoperatedbyanexperiencedmemberofstaffitisisolatedfromthenormalworkingenvironment（andthusunlikelytobeaffectedbyspecialcausevariation）thestudytakesplaceoveraveryshortperiodoftimeTypically,about50outputsoftheprocesswouldprovidedataforaMachineCapabilityStudy.Thismayvarydependingontheoutputs.Forexample,anhoursoutputofnailsmightbemorethanenough,whereasproducing50backaxlesmightnotbepractical.