機械加工PFMEA案例

1、羅信精密零件（上海）有限公司 LX Precision (Shanghai) Co., Ltd.潛潛在在的的失失效效模模式式及及后后果果分分析析Potential Failure Mode and Effects Analysis (Process) 客戶名稱 Customer Name：Thomas Magnete GMBH 客戶零件圖號/版本 Customer Part No./Rev.448817 / 02 羅信零件圖號 LX Part No.A01-002 零件名稱 Part Name/Description ：Cone ng 初始制定日期 Original Maked Date ：2

2、009/11/16FMEA Revised Minutes Rev.DateRevised ItemRevised byB10/DecThe document format has been changed LuXianming PotentialPotential FailureFailure ModeMode andand EffectsEffects AnalysisAnalysis (Process(Process FMEA)FMEA)潛潛在在的的失失效效模模式式及及后后果果分分析析*-FMEA-*零件名稱 /客戶圖號 /版本：Part Name /Drawing No. / Rev.

3、過程責任Process ResponsibilityFMEA日期（原始）Date (Orig.)日期(修訂)Revised date零件程序編號 /版本號Part Program No./Rev.初始生產日期Orignal Production Date編制者 Prepared By核心小組Core Team過程步驟/功能 ProcessStep /Function要求 Requirements潛在失效模式Potential Failure Mode潛在失效后果Potential Effect of Failure嚴重度（S)Severity過程分類ProcessClassification產

4、品分類ProductClassification潛在失效起因Potential Cause of Failure頻度（O)Occurrence現(xiàn)行過程控制預防Current Process ControlsPrevention現(xiàn)行過程控制探測Current Process Controls delection探測度（D）DetectionRPN建議措施Recommended Action責任和目標完成日期Responsibility &Target CompletionDate措施執(zhí)行結果Action Results采取的措施及生效日期 Action Taken &Effect

5、ive Date嚴重度Severuty頻度Occyrance探測度DetectionRPN10.Rawmaterial incoming來料Surface crash表面碰傷Impact machining 影響后續(xù)加工4transit method wasunreasonable搬運方法不合理2Transit way was regulated 規(guī)定搬運方法 Incoming Inspection來料檢驗648NANANANANANANA incominginspection來料檢驗28 -0.03Dimension out ofspec尺寸超差Cant be machined無法加工6Su

6、ppliers dimension outof spec供應商生產尺寸超差3Supplier provide materialcertification供應商提供材質證書Incoming Inspection來料檢驗354NANANANANANANAAmericancode:AISI 1215Material type wrong材料牌號不對Impact the functionalityof parts影響零件使用性能8Supplier delivery wrongmaterial供應商送錯材料21.Check purchasing order of rawmaterial2.Supplie

7、r should inform us beforedelivery1.材料訂購進行審核2.供應商送貨之前提前通知Warehouse keeper checks the rawmaterial according with delivery list倉庫人員按送貨單檢查原材料696Check certificate of rawmaterials in line withthe label of rawmaterials檢查材質證明與原材料標識一致Warehouse keeper倉庫管理員11-15Warehousekeeper confirmdelivery list andthe raw m

8、aterialcertification庫管員確認送貨單和材質證明81648The materialschemicalcomposition are outof spec.材料成份超差Impact the functionalityof parts影響零件使用性能8Supplier productioncontrol out of spec.供應商材質成份控制超差2Supplier provide materialcertification供應商提供材質證書1.Incoming inspection engineercheck with material certification2.Send

9、 the material to the thirdparty to conduct an overallchecking once three years1.來料檢驗核對材料證書2.每3年一次第三方原材料檢測696Send the material to thethird party to conduct anoverall checking once ayear每年一次第三方原材料檢測Quality department質量保證部11-19The materialschemicalcompositionare allaccording withSpec.確定化學成份符合規(guī)定81648Iss

10、ue Material發(fā)料Issue wrong material發(fā)錯材料1.Impact machining2.Impact function of parts1.影響后續(xù)加工2.影響產品使用功能6Warehouse keeper issuewrong material倉庫發(fā)料錯誤1Paint the different color at the barend to manage different rawmaterial材料進行顏色管理Operator and warehouse keepercheck each other操作員人員和倉庫管理員互相檢驗318NANANANANANANA2

11、01.TurningFacing光平面Face is not flat端面不平整Impact machining影響后續(xù)加工3Tools wear刀具磨損21.Estimate the tool life, changetools periodically2.Correct the tooling parametersperiodically1.估算刀具壽命,定時換刀2.定期對刀具參數(shù)進行補正Checking dimensions on line在線檢查尺寸318NANANANANANANA202.Drilling hole 鉆孔5.4Dimension out oftolerance尺寸超差

12、Impact machining影響后續(xù)加工6Tools wear刀具磨損21.Estimate the tool life, changetools periodically2.Correct the tooling parametersperiodically1.估算刀具壽命,定時換刀2.定期對刀具參數(shù)進行補正Checking dimensions on line在線檢查尺寸336NANANANANANANA203.Brilling Hole 鏜孔（20）5.6 +0.2Dimension out oftolerance尺寸超差Customer dissatisfaction客戶不滿意6T

13、ools wear刀具磨損31.Estimate the tool life, changetools periodically2.Correct the tooling parametersperiodically1.估算刀具壽命,定時換刀2.定期對刀具參數(shù)進行補正Checking dimensions on line在線檢查尺寸354NANANANANANANA過程步驟/功能 ProcessStep /Function要求 Requirements潛在失效模式Potential Failure Mode潛在失效后果Potential Effect of Failure嚴重度（S)Sever

14、ity過程分類ProcessClassification產品分類ProductClassification潛在失效起因Potential Cause of Failure頻度（O)Occurrence現(xiàn)行過程控制預防Current Process ControlsPrevention現(xiàn)行過程控制探測Current Process Controls delection探測度（D）DetectionRPN建議措施Recommended Action責任和目標完成日期Responsibility &Target CompletionDate措施執(zhí)行結果Action Results采取的措施及

15、生效日期 Action Taken &Effective Date嚴重度Severuty頻度Occyrance探測度DetectionRPN203.Brilling Hole 鏜孔（32,42）20Dimension out oftolerance尺寸超差Customer dissatisfaction客戶不滿意5Tools wear刀具磨損31.Estimate the tool life, changetools periodically2.Correct the tooling parametersperiodically1.估算刀具壽命,定時換刀2.定期對刀具參數(shù)進行補正Che

16、cking dimensions on line在線檢查尺寸345NANANANANANANA（19）5.90.1 Dimension out oftolerance尺寸超差Customer dissatisfaction客戶不滿意5Tools wear刀具磨損31.Estimate the tool life, changetools periodically2.Correct the tooling parametersperiodically1.估算刀具壽命,定時換刀2.定期對刀具參數(shù)進行補正Checking dimensions on line在線檢查尺寸345NANANANANANA

17、NA（15）14.5+0.2Dimension out oftolerance尺寸超差Customer dissatisfaction客戶不滿意6Tools wear刀具磨損31.Estimate the tool life, changetools periodically2.Correct the tooling parametersperiodically1.估算刀具壽命,定時換刀2.定期對刀具參數(shù)進行補正Checking dimensions on line在線檢查尺寸354NANANANANANANA204Reameringhole鉸孔（21）5.5 +0.02/-0.005 Dim

18、ension out oftolerance尺寸超差Impact assembly影響客戶裝配8Tools wear刀具磨損41.Estimate the tool life, changetools periodically2.Correct the tooling parametersperiodically1.估算刀具壽命,定時換刀2.定期對刀具參數(shù)進行補正Checking dimensions on line在線檢查尺寸41281.Determine the toolmaterial and enactmenttool life2.Determine theprocess parame

19、ters onthe machine3.SPC control1.確定刀具材質和設定刀具使用壽命2.確定過程參數(shù)3.SPC控制TechnologyDepartment技術部ProductionDepartment 生產部11-171.Tool materialand tool lifeweredetermined.2.PPK1.67.1.刀具材質和刀具壽命已經(jīng)確定2.PPK1.6782464205.Dilling hole鉆孔10Dimension out oftolerance尺寸超差Impact machining影響后續(xù)加工4Tools wear刀具磨損21.Estimate the t

20、ool life, changetools periodically2.Correct the tooling parametersperiodically1.估算刀具壽命,定時換刀2.定期對刀具參數(shù)進行補正Checking dimensions on line在線檢查尺寸324NANANANANANANA206.Boring hole鏜孔（18）12.2+0.04/0Dimension out oftolerance尺寸超差Impact assembly影響客戶裝配8Tools wear刀具磨損41.Estimate the tool life, changetools periodical

21、ly2.Correct the tooling parametersperiodically1.估算刀具壽命,定時換刀2.定期對刀具參數(shù)進行補正Checking dimensions on line在線檢查尺寸41281.Determine the toolmaterial and enactmenttool life2.Determine theprocess parameters onthe machine3.SPC control1.確定刀具材質和設定刀具使用壽命2.確定過程參數(shù)3.SPC控制TechnologyDepartment技術部ProductionDepartment 生產部1

22、1-171.Tool materialand tool lifeweredetermined.2.PPK1.67.1.刀具材質和刀具壽命已經(jīng)確定2.PPK1.6782464（16）17.5 +0.02/-0.03Dimension out oftolerance尺寸超差Customer dissatisfaction客戶不滿意6Tools wear刀具磨損31.Estimate the tool life, changetools periodically2.Correct the tooling parametersperiodically1.估算刀具壽命,定時換刀2.定期對刀具參數(shù)進行補正

23、Checking dimensions on line在線檢查尺寸354NANANANANANANA過程步驟/功能 ProcessStep /Function要求 Requirements潛在失效模式Potential Failure Mode潛在失效后果Potential Effect of Failure嚴重度（S)Severity過程分類ProcessClassification產品分類ProductClassification潛在失效起因Potential Cause of Failure頻度（O)Occurrence現(xiàn)行過程控制預防Current Process ControlsPr

24、evention現(xiàn)行過程控制探測Current Process Controls delection探測度（D）DetectionRPN建議措施Recommended Action責任和目標完成日期Responsibility &Target CompletionDate措施執(zhí)行結果Action Results采取的措施及生效日期 Action Taken &Effective Date嚴重度Severuty頻度Occyrance探測度DetectionRPN206.Boring hole鏜孔（37）Dimension out oftolerance尺寸超差Impact fun

25、ctionality影響使用性能61,Tools wear刀具磨損2,The machine centerline offset機床中心線偏移31.Estimate the tool life, changetools periodically2.Correct the tooling parametersperiodically3,Setup the machine center lineperiodically1.估算刀具壽命,定時換刀2.定期對刀具參數(shù)進行補正3.定期調整機床中心Checking dimensions on line在線檢查尺寸354NANANANANANANA207.T

26、urningOutsideDiameter車外圓（4）14.03Dimension out oftolerance尺寸超差Customer dissatisfaction客戶不滿意5Tools wear刀具磨損31.Estimate the tool life, changetools periodically2.Correct the tooling parametersperiodically1.估算刀具壽命,定時換刀2.定期對刀具參數(shù)進行補正Checking dimensions on line在線檢查尺寸345NANANANANANANA（5）12.60.03Dimension out

27、 oftolerance尺寸超差Customer dissatisfaction客戶不滿意5Tools wear刀具磨損31.Estimate the tool life, changetools periodically2.Correct the tooling parametersperiodically1.估算刀具壽命,定時換刀2.定期對刀具參數(shù)進行補正Checking dimensions on line在線檢查尺寸345NANANANANANANA（1）16.18 0/-0.04Dimension out oftolerance尺寸超差Customer dissatisfaction

28、客戶不滿意6Tools wear刀具磨損31.Estimate the tool life, changetools periodically2.Correct the tooling parametersperiodically1.估算刀具壽命,定時換刀2.定期對刀具參數(shù)進行補正Checking dimensions on line在線檢查尺寸354NANANANANANANA（25）45.65Dimension out oftolerance尺寸超差Customer dissatisfaction客戶不滿意4Tools wear刀具磨損31.Estimate the tool life,

29、changetools periodically2.Correct the tooling parametersperiodically1.估算刀具壽命,定時換刀2.定期對刀具參數(shù)進行補正Checking dimensions on line在線檢查尺寸336NANANANANANANA208.Grooving 割槽（2） 14+0.051.Dimension out oftolerance2.Surface is rough1.尺寸超差2.表面粗糙Impact assembly影響客戶裝配7Tools wear刀具磨損41.Estimate the tool life, changetool

30、s periodically2.Correct the tooling parametersperiodically1.估算刀具壽命,定時換刀2.定期對刀具參數(shù)進行補正Checking dimensions on line在線檢查尺寸41121.Determine the toolmaterial and enactmenttool life2.Determine theprocess parameters onthe machine3.SPC control1.確定刀具材質和設定刀具使用壽命2.確定過程參數(shù)3.SPC控制TechnologyDepartment技術部ProductionDep

31、artment 生產部11-171.Tool materialand tool lifeweredetermined.2.PPK1.67.1.刀具材質和刀具壽命已經(jīng)確定2.PPK1.6772456（11）2.2 +0.2/01.Dimension out oftolerance2.Surface is rough1.尺寸超差2.表面粗糙Customer dissatisfaction客戶不滿意6Tools wear刀具磨損31.Estimate the tool life, changetools periodically2.Correct the tooling parametersperi

32、odically1.估算刀具壽命,定時換刀2.定期對刀具參數(shù)進行補正Checking dimensions on line在線檢查尺寸354NANANANANANANA（26）R0.1+0.1(2X)Dimension out oftolerance尺寸超差Customer dissatisfaction客戶不滿意5Tools wear刀具磨損31.Estimate the tool life, changetools periodically2.Correct the tooling parametersperiodically1.估算刀具壽命,定時換刀2.定期對刀具參數(shù)進行補正Checki

33、ng dimensions on line在線檢查尺寸345NANANANANANANA過程步驟/功能 ProcessStep /Function要求 Requirements潛在失效模式Potential Failure Mode潛在失效后果Potential Effect of Failure嚴重度（S)Severity過程分類ProcessClassification產品分類ProductClassification潛在失效起因Potential Cause of Failure頻度（O)Occurrence現(xiàn)行過程控制預防Current Process ControlsPreventi

34、on現(xiàn)行過程控制探測Current Process Controls delection探測度（D）DetectionRPN建議措施Recommended Action責任和目標完成日期Responsibility &Target CompletionDate措施執(zhí)行結果Action Results采取的措施及生效日期 Action Taken &Effective Date嚴重度Severuty頻度Occyrance探測度DetectionRPN208.Grooving 割槽（3）11.80.2Dimension out oftolerance尺寸超差Customer dis

35、satisfaction客戶不滿意6Tools wear刀具磨損31.Estimate the tool life, changetools periodically2.Correct the tooling parametersperiodically1.估算刀具壽命,定時換刀2.定期對刀具參數(shù)進行補正Checking dimensions on line在線檢查尺寸354NANANANANANANA209Cutting off切斷（17）23.4Dimension out oftolerance尺寸超差1.Customerdissatisfaction2.Impact machining1

36、.客戶不滿意2.影響后續(xù)加工51, The part length is notstable2. The machine mainspindle loosing1.原材料外徑尺寸不均勻2.機床主軸夾頭松動31.Check the raw material whenchanging material and make surethe outer diameter within 0.03mmon each point2.Check the collect loose or notperiodically1.每次換料時，測量材料外徑, 要求變化在0.03 mm 以內2.定期進行檢查工裝松緊程度1.I

37、nspecting on line2.Use the cutting off detectionfixture1.在線檢查尺寸2.使用切斷檢測功能345NANANANANANANA210Drilling hole鉆孔（22）6+0.11.Dimension out oftolerance2.Surface is rough1.尺寸超差2.表面粗糙Customer dissatisfaction客戶不滿意6Tools wear刀具磨損31.Estimate the tool life, changetools periodically2.Correct the tooling parameter

38、speriodically1.估算刀具壽命,定時換刀2.定期對刀具參數(shù)進行補正Checking dimensions on line在線檢查尺寸354NANANANANANANA(36)Dimension out oftolerance尺寸超差Impact functionality影響使用性能61,Tools wear刀具磨損2,The machine centerline offset機床中心線偏移31.Estimate the tool life, changetools periodically2.Correct the tooling parametersperiodically3,

39、Setup the machine center lineperiodically1.估算刀具壽命,定時換刀2.定期對刀具參數(shù)進行補正3.定期調整機床中心Checking dimensions on line在線檢查尺寸354NANANANANANANA(14)90.25Dimension out oftolerance尺寸超差Customer dissatisfaction客戶不滿意6Tools wear刀具磨損31.Estimate the tool life, changetools periodically2.Correct the tooling parametersperiodic

40、ally1.估算刀具壽命,定時換刀2.定期對刀具參數(shù)進行補正Checking dimensions on line在線檢查尺寸354NANANANANANANA(33)1183Dimension out oftolerance尺寸超差Customer dissatisfaction客戶不滿意5Tools wear刀具磨損31.Estimate the tool life, changetools periodically2.Correct the tooling parametersperiodically1.估算刀具壽命,定時換刀2.定期對刀具參數(shù)進行補正Checking dimension

41、s on line在線檢查尺寸345NANANANANANANA(37)0.2 +0.2/0.1*45Dimension out oftolerance尺寸超差Customer dissatisfaction客戶不滿意5Tools wear刀具磨損31.Estimate the tool life, changetools periodically2.Correct the tooling parametersperiodically1.估算刀具壽命,定時換刀2.定期對刀具參數(shù)進行補正Checking dimensions on line在線檢查尺寸345NANANANANANANA211.D

42、rilling hole鉆孔10Dimension out oftolerance尺寸超差Impact machining影響后續(xù)加工4Tools wear刀具磨損21.Estimate the tool life, changetools periodically2.Correct the tooling parametersperiodically1.估算刀具壽命,定時換刀2.定期對刀具參數(shù)進行補正Checking dimensions on line在線檢查尺寸324NANANANANANANA212Boring Hole 鏜孔(22)8.80.1Dimension out oftole

43、rance尺寸超差Customer dissatisfaction客戶不滿意6Tools wear刀具磨損31.Estimate the tool life, changetools periodically2.Correct the tooling parametersperiodically1.估算刀具壽命,定時換刀2.定期對刀具參數(shù)進行補正Checking dimensions on line在線檢查尺寸354NANANANANANANA過程步驟/功能 ProcessStep /Function要求 Requirements潛在失效模式Potential Failure Mode潛在失效

44、后果Potential Effect of Failure嚴重度（S)Severity過程分類ProcessClassification產品分類ProductClassification潛在失效起因Potential Cause of Failure頻度（O)Occurrence現(xiàn)行過程控制預防Current Process ControlsPrevention現(xiàn)行過程控制探測Current Process Controls delection探測度（D）DetectionRPN建議措施Recommended Action責任和目標完成日期Responsibility &Target

45、CompletionDate措施執(zhí)行結果Action Results采取的措施及生效日期 Action Taken &Effective Date嚴重度Severuty頻度Occyrance探測度DetectionRPN212Boring Hole 鏜孔(30)0.1*45Dimension out oftolerance尺寸超差Customer dissatisfaction客戶不滿意5Tools wear刀具磨損31.Estimate the tool life, changetools periodically2.Correct the tooling parametersper

46、iodically1.估算刀具壽命,定時換刀2.定期對刀具參數(shù)進行補正Checking dimensions on line在線檢查尺寸345NANANANANANANA(13)2.5+0.2Dimension out oftolerance尺寸超差Customer dissatisfaction客戶不滿意6Tools wear刀具磨損31.Estimate the tool life, changetools periodically2.Correct the tooling parametersperiodically1.估算刀具壽命,定時換刀2.定期對刀具參數(shù)進行補正Checking d

47、imensions on line在線檢查尺寸354NANANANANANANA(12)1.20.025Dimension out oftolerance尺寸超差Customer dissatisfaction客戶不滿意6Tools wear刀具磨損31.Estimate the tool life,change tools periodically1.估算刀具壽命,定時換刀2.Correct the toolingparameters periodically2.定期對刀具參數(shù)進行補正Checking dimensions on line在線檢查尺寸354NANANANANANANA(35)

48、Dimension out oftolerance尺寸超差Impact functionality影響使用性能6The machine centeroffset機床中心線偏移3Setup the machine centerperiodically定期調整機床中心Checking dimensions on line在線檢查尺寸354NANANANANANANA(24)13 +0.04Dimension out oftolerance尺寸超差Impact assembly影響客戶裝配8Tools wear刀具磨損31.Estimate the tool life, changetools pe

49、riodically2.Correct the tooling parametersperiodically1.估算刀具壽命,定時換刀2.定期對刀具參數(shù)進行補正Checking dimensions on line在線檢查尺寸4961.Determine the toolmaterial and enactmenttool life2.Determine theprocess parameters onthe machine3.SPC control1.確定刀具材質和設定刀具使用壽命2.確定過程參數(shù)3.SPC控制TechnologyDepartment技術部ProductionDepartme

50、nt 生產部11-171.Tool materialand tool lifeweredetermined.2.PPK1.67.1.刀具材質和刀具壽命已經(jīng)確定2.PPK1.6782464213.TurningOutsideDiameter車外圓(6)14.6+0.11.Dimension out oftolerance2.Surface is rough1.尺寸超差2.表面粗糙Customer dissatisfaction客戶不滿意6Tools wear刀具磨損31.Estimate the tool life, changetools periodically2.Correct the t

51、ooling parametersperiodically1.估算刀具壽命,定時換刀2.定期對刀具參數(shù)進行補正Checking dimensions on line在線檢查尺寸354NANANANANANANA(29)0.20.1*45Dimension out oftolerance尺寸超差Customer dissatisfaction客戶不滿意4Tools wear刀具磨損21.Estimate the tool life, changetools periodically2.Correct the tooling parametersperiodically1.估算刀具壽命,定時換刀2

52、.定期對刀具參數(shù)進行補正Checking dimensions on line在線檢查尺寸324NANANANANANANA(9)3.8+0.1Dimension out oftolerance尺寸超差Customer dissatisfaction客戶不滿意6Tools wear刀具磨損31.Estimate the tool life, changetools periodically2.Correct the tooling parametersperiodically1.估算刀具壽命,定時換刀2.定期對刀具參數(shù)進行補正Checking dimensions on line在線檢查尺寸3

53、54NANANANANANANA0.20.01*45Dimension out oftolerance尺寸超差Customer dissatisfaction客戶不滿意5Tools wear刀具磨損31.Estimate the tool life, changetools periodically2.Correct the tooling parametersperiodically1.估算刀具壽命,定時換刀2.定期對刀具參數(shù)進行補正Checking dimensions on line在線檢查尺寸345NANANANANANANA過程步驟/功能 ProcessStep /Function要

54、求 Requirements潛在失效模式Potential Failure Mode潛在失效后果Potential Effect of Failure嚴重度（S)Severity過程分類ProcessClassification產品分類ProductClassification潛在失效起因Potential Cause of Failure頻度（O)Occurrence現(xiàn)行過程控制預防Current Process ControlsPrevention現(xiàn)行過程控制探測Current Process Controls delection探測度（D）DetectionRPN建議措施Recommen

55、ded Action責任和目標完成日期Responsibility &Target CompletionDate措施執(zhí)行結果Action Results采取的措施及生效日期 Action Taken &Effective Date嚴重度Severuty頻度Occyrance探測度DetectionRPN213.TurningOutsideDiameter車外圓(27)0.30.05*20Dimension out oftolerance尺寸超差Customer dissatisfaction客戶不滿意5Tools wear刀具磨損31.Estimate the tool lif

56、e, changetools periodically2.Correct the tooling parametersperiodically1.估算刀具壽命,定時換刀2.定期對刀具參數(shù)進行補正Checking dimensions on line在線檢查尺寸345NANANANANANANA(7)19.6+0.05/0Dimension out oftolerance尺寸超差Customer dissatisfaction客戶不滿意6Tools wear刀具磨損31.Estimate the tool life, changetools periodically2.Correct the t

57、ooling parametersperiodically1.估算刀具壽命,定時換刀2.定期對刀具參數(shù)進行補正Checking dimensions on line在線檢查尺寸354NANANANANANANA(28)0.20.05*45Dimension out oftolerance尺寸超差Customer dissatisfaction客戶不滿意5Tools wear刀具磨損31.Estimate the tool life, changetools periodically2.Correct the tooling parametersperiodically1.估算刀具壽命,定時換刀

58、2.定期對刀具參數(shù)進行補正Checking dimensions on line在線檢查尺寸345NANANANANANANA(3)27.3+0.06/+0.02Dimension out oftolerance尺寸超差Customer dissatisfaction客戶不滿意7Tools wear刀具磨損41.Estimate the tool life, changetools periodically2.Correct the tooling parametersperiodically1.估算刀具壽命,定時換刀2.定期對刀具參數(shù)進行補正Checking dimensions on li

59、ne在線檢查尺寸41121.Determine the toolmaterial and enactmenttool life2.Determine theprocess parameters onthe machine3.SPC control1.確定刀具材質和設定刀具使用壽命2.確定過程參數(shù)3.SPC控制TechnologyDepartment技術部ProductionDepartment 生產部11-171.Tool materialand tool lifeweredetermined.2.PPK1.67.1.刀具材質和刀具壽命已經(jīng)確定2.PPK1.6772456(10)3.6+0.0

60、5Dimension out oftolerance尺寸超差Customer dissatisfaction客戶不滿意6Tools wear刀具磨損31.Estimate the tool life, changetools periodically2.Correct the tooling parametersperiodically1.估算刀具壽命,定時換刀2.定期對刀具參數(shù)進行補正Checking dimensions on line在線檢查尺寸354NANANANANANANA30Washing清 洗Different parts mixed不同的零件混合在一起Customer dissatisfaction客戶不滿意6The operater mix differentparts操作