南京工程学院 质量管理第16讲 6SIGMA.ppt

1、2020/12/19,1,质量管理学第九章 6SIGMA,南京工程学院经济管理学院 高 峰,2020/12/19,2,Six Sigma Concept,2020/12/19,3,What is Six Sigma?,The “hottest” quality program It is a framework for operational development Management People Toolbox “A breakthrough strategyfor profitability”,6s,WORLD,2020/12/19,4,“Six Sigma is a goal for

2、 process improvement that forces us to put our vision of quality in numerical terms”,2020/12/19,5,“Good quality does not necessarily mean high quality. It means a predictable degree of uniformity and dependability at low cost with a quality suited to the market.”,Dr. W. Edwards Deming,2020/12/19,6,B

3、uilding Blocks,Six Sigma,Customer Focus,Business Process Re-engineering,ISO 9001/14001,SPC, Statistical Process Control,TQM, Total Quality Management,2020/12/19,7,Six Sigma in a Nutshell Vision 6s - 3.4 defects per 1 million opportunities - 99.99997% yield People Black Belts especially : the amount

4、or quantity produced or returned 2 : the capacity of yielding produce,Yield Definition,230 units produced 14 defects found,Process,2020/12/19,31,Rolled Through Yield,Process,Process,Process,Yield = 90%,Yield = 95%,Yield = 85%,Rolled Through Yield = 0.90 x 0.95 x 0.85 = 72.7%,2020/12/19,32,Normalized

5、 Yield,Process,Process,Process,Yield = 90%,Yield = 95%,Yield = 85%,Rolled Through Yield = 0.90 x 0.95 x 0.85 = 72.7%,Normalized,2020/12/19,33,Cost Of Poor Quality,2020/12/19,34,Traditional Quality Costs,Customer Returns,Inspection Costs,Recalls,Waste,Rejects,Rework,Testing Costs,2-3%,2020/12/19,35,C

6、ost Of Poor Quality,Customer Returns,Inspection Costs,Recalls,Waste,Rejects,Rework,Testing Costs,Customer Allowances,Incorrectly Completed Sales Order,Excess Inventory,Incorrect orders shipped,Time with Dissatisfied Customer,Late Paperwork,Excessive Overtime,Premium Freight Costs,Excessive Field Ser

7、vice Costs,Pricing or Billing Errors,Complaint Handling,Overdue Receivables,Employee Turnover,Expediting Costs,Planning Delays,Development Cost of Failed Products,20-40%,Unused Capacity Lost goodwill Delays,2020/12/19,36,How Is A Six Sigma Program Structured?,2020/12/19,37,Six Sigma Deployment,Execu

8、tive Management,Black Belts,Green Belts,Six Sigma Champion,Master Black Belts,Vision Prioritize Define projects,Support Teach,Measure Analyze Improve Control,Communication 然后,下一个阶段再接着 进行改善活动。,Define(定义),1) 确定问题点/具体改善目标,2020/12/19,60,Define problem Y,Measure Y,Investigate Xi causing the output Y. Fin

9、d the vital few!,Find Y = f(Xi) and optimize output Y,Control Y via vital few Xi,Six Sigma Methodology,2020/12/19,61,Change Management Communication High Performance Teams,5 Whys Internal Business Assessment Quality Function Deployment Pareto Charts,Process Mapping Quality Indices Measurement System

10、 Analysis,Graphical Data Exploration Hypothesis Testing FMEA,Brainstorming Regression Analysis Multivariate Analysis Design of Experiments Mistake Proofing,Standard Operation Procedures Statistical Process Control,Six Sigma Tools,Change Management Communication High Performance Teams,2020/12/19,62,W

11、hy were you late for work today?I was on the later bus! Why were you on the later bus? I missed my normal bus! Why did you miss your normal bus? I was running late! Why were you running late? I couldnt find the door keys! Why couldnt you find your door keys? I didnt know where I left them!,5 Whys,A

12、simple tool that gets you to the root of a problem and enables you to form a precise problem definition.,2020/12/19,63,Accurate and precise,Precise but not accurate,Accurate but not precise,Not accurate or precise,Measurement System Analysis,DMAIC,2020/12/19,65,6 SIGMA改进过程,2020/12/19,66,Define,Measu

13、re,Analyze,Improve,Control,Define Phase,2020/12/19,67,Derived Importance,High Impact,Medium Impact,Low Impact,Low,Medium,High,Performance,Selecting the right projects,2020/12/19,68,What You Think It Is. What It Really Is. What It Should Be. What It Could Be.,Versions of a Process,流程图,应描述 过程中的主要活动任务

14、子过程 过程界面（顶级与详细） 过程输入 X 过程输出 Y 过程步骤输出 y 应经常检查并更新流程图,什么是流程图,以图形的方式描述某一过程的流程，包括过程的各个步骤，及各步骤的输入x及输出y和需改进之处。,Typical Order Fulfillment Process,Customer Places Order,Send order to warehouse for picking,Is order correct?,No,Yes,Call Customer and make corrections.,Is Product Available?,No,Yes,Pick product f

15、or order,Does Customer have other shipments?,Yes,No,Will product be available before order ships?,Yes,Place order on hold until product available,No,Is production scheduled to manufacture product?,Can production manufacture product in time for shipping?,No,Yes,No,Will Customer accept backorders?,Yes

16、,Expedite manufacturing schedule,No,Yes,Will Customer allow consolidated shipments?,Yes,No,Consolidate Orders,Customer Receives Order,Order Entry,Warehousing,Sales,Manufacturing,Transportation,流程图的层次结构,顶层流程图 主要用于对关键过程或过程特性进行定位 通常着眼于某一产品过程的流程步骤 反映过程各步骤之间的线性顺序关系 虽遵循过程的流程，但对新手而言，缺乏详细信息不易于顺利完成相关任务。,详细流程

17、图 主要用于理解有关过程运行及决策点的细节 通常着眼于工作区域内的一至二个过程 应作为作业指导书 用于制订FMEA及控制计划 反映由决策点产生的流程回路 有助于顺利完成相关任务,流程图的多种用途,1.对过程现状按步骤进行了详细描述，便于交流及讨论。 2.指明了过程不足之处，亦即需改进之处。根据客户所期望的过程输出消除非增值步骤或增加必要的步骤。 3.记录幕后工厂。,记住，建立流程图的前提是对问题的准确描述,制订顶层流程图,确定相关过程的主要输入及与客户方相关的输出，以及输出输入之间的联系。,确定过程界面内的各个步骤,Label Body,2,Insert Spirol,Pin,3,Assemb

18、le,Pistons,4,Assemble,Cover,5,Station 1 Body Assembly,AD-SP Air Dryer,Paperwork,1,7,Stores,绘出检测点,用菱形决策框表示。 必须在决策框内加入问题。 只要有检测点存在，总会根据检测标准作出通过或不通过的决定。 检测会导致流程反向，出现返工流程回路或报废。 问题应以具体客观为宜。,6 Test,Is the pin seated correctly? Does the O ring function properly? Is the cover aligned correctly?,列出每一步骤的输出变量y

19、 （过程及产品）,2,Insert Spirol,Pin,3,Assemble,Pistons,4,Assemble,Cover,5,AD-SP Air Dryer Body Assembly,Paperwork,1,7,Route Ticket,Orientation Label adhesion,Greased O ring Screw position adj.,Flush w/ surface,Label Body,O ring position Cover orientation Snap ring inserted,Stores,Functional Assembly,Rework

20、,Is the pin seated correctly? Does the O ring function properly? Is the cover aligned correctly?,各步骤输出y与过程输出Y有何关系?如无关系又如何?,Test,6,列出每一步骤的输入变量x,2,Insert Spirol,Pin,3,Assemble,Pistons,4,Assemble,Cover,5,AD-SP Air Dryer Body Assembly,Paperwork,1,7,Route Ticket,Orientation Label adhesion,Greased O ring

21、Screw position adj.,Flush w/ surface,Label Body,O ring position Cover orientation Snap ring inserted,Stores,Functional Assembly,Rework,Bills of materials,ISO Procedures,Cleanliness,Material,Press Force,Material,Assy Technique,Amount of Grease,Material,Assy technique,Adjustment Pos.,Snap Ring,Inserti

22、on,Material,Test Capability,Calibration,Test,6,Is the pin seated correctly? Does the O ring function properly? Is the cover aligned correctly?,各步骤输出x与过程输出Y及各步骤输出y有何关系?,按特性对输入分类 （噪声变量，标准操作程序,可控制变量，关键变量）,S Bills of materials,S ISO Procedures,S Cleanliness,C Material,X Press Force,C Material,S Assy Tec

23、hnique,C Amount of Grease,C Material,S Assy technique,N Adjustment Pos.,C Snap Ring,C Insertion,C Material,X Test Capability,S Calibration,2,Insert Spirol,Pin,3,Assemble,Pistons,4,Assemble,Cover,5,AD-SP Air Dryer Body Assembly,Paperwork,1,7,Route Ticket,Orientation Label adhesion,Greased O ring Scre

24、w position adj.,Flush w/ surface,Label Body,O ring position Cover orientation Snap ring inserted,Stores,Functional Assembly,Rework,Test,6,Is the pin seated correctly? Does the O ring function properly? Is the cover aligned correctly?,过程输入变量,噪声输入变量（N）：对各步骤输出变量y的波动有影响的输入变量x，常难以控制或不加控制，如：湿度，温度等环境参数。 标准

25、操作程序（SOP）：运行过程所需的标准操作程序。 可控制输入变量（ C ）：属于过程输入变量X，其变化会使过程输出变量Y也随之改变，即会引起输出效应。有时也称该类变量为刻度变量。 关键输入变量（ X ）： 属于过程输入变量X中经统计显示对过程输出变量Y的波动影响大的输入变量。,Noise,SOP,Controllable,Critical,对可控制及关键输入变量（如存在）加入操作规范及目标值,2,Insert Spirol,Pin,3,Assemble,Pistons,4,Assemble,Cover,5,Paperwork,1,7,Route Ticket,Orientation Label

26、 adhesion,Greased O ring Screw position adj.,Flush w/ surface,Label Body,O ring position Cover orientation Snap ring inserted,Stores,Functional Assembly,Rework,AD-SP Air Dryer Body Assembly,Test,6,Is the pin seated correctly? Does the O ring function properly? Is the cover aligned correctly?,S Bills

27、 of materials,S ISO Procedures,S Cleanliness,C Material,X Press Force,C Material,S Assy Technique,C Amount of Grease,C Material,S Assy technique,N Adjustment Pos.,C Snap Ring,C Insertion,C Material,X Test Capability,S Calibration,确定增值及非增值步骤,AD-SP Air Dryer Body Assembly,Label Body,2,Insert Spiral,Pi

28、n,3,Assemble,Pistons,4,Assemble,Cover,5,Paperwork,1,1,Functional Assembly,Rework,Route Ticket,Orientation Label adhesion,Greased O ring Screw position adj.,Flush w/ surface,O ring position Cover orientation Snap ring inserted,Test,6,Is the pin seated correctly? Does the O ring function properly? Is

29、the cover aligned correctly?,S Bills of materials,S ISO Procedures,S Cleanliness,C Material,X Press Force,C Material,S Assy Technique,C Amount of Grease,C Material,S Assy technique,N Adjustment Pos.,C Snap Ring,C Insertion,C Material,X Test Capability,S Calibration,流程图在过程改进中的作用,Process Map,Cause and

30、 Effects Matrix,Initial Assessment of Capability and Control Plans,Functional Assembly,Rework,因果矩阵,流程图,失效模式及后果分析,FMEA,初期能力评估与控制计划,流程图制订要点,依靠团队制订流程图，个人不可能具备所有的知识。 应在各种不同条件下考察过程。 应在过程实际运行时加以考察并记录所需细节。 制订流程图初稿时，为避免书写空间不够，可在即时贴上写下各流程步骤，贴于墙上以确定书写布局 。 流程图定稿时，如书写空间不够，可加入附页，并以页码为参考。 流程图应根据需要加以维护和修改，并记录更改日期。

31、过程改进时应参考流程图。,总结,流程图在过程改进中的地位 流程图的作用 如何按步骤建立流程图 顶级流程图与详细流程图的区别 完成流程图练习 学习附例中的流程图 团队及其成员背景的重要性,流程图举例,ECM Cutting Process,2020/12/19,93,Define,Measure,Analyze,Improve,Control,Measurement Phase,2020/12/19,94,Data in different DMAIC-phases,Collect facts surrounding a problem or opportunity,Monitor proces

32、s to ensure process gain is sustained,Establish relationships between process inputs and outputs,Develop a baseline for process parameters,Quantify the impact of process improvements,2020/12/19,95,Clarifydatacollectiongoals,Developoperationaldefinitionsandprocedures,Plan fordataconsistencyand stabil

33、ity,Begin datacollection,Continueimprovingmeasurementconsistency,5-Step Process for Data Collection,12345,2020/12/19,96,Define,Measure,Analyze,Improve,Control,Analyze Phase,2020/12/19,97,Value-Added Work,Non value-Added Work,Steps that are considered Essential to produce and deliver the product or s

34、ervice to meet the customers needs and requirements. Customer Is willing to pay for step, step is performed right the first time and transforms the product towards completion.,Steps that are considered Non-Essential to produce and deliver the product or service to meet the customers needs and requir

35、ements. Customer is not willing to pay for step.,Value-Added Analysis,2020/12/19,98,Re-evaluate,Recall,Redesign,Retest,Retype,Repeat,Reissue,Reject,Remake,Recheck,Revise,Return,Remeasure,Reship,Rework,Redo,Clues to Non value-Added Work,2020/12/19,99,Define,Measure,Analyze,Improve,Control,Improvement

36、 Phase,2020/12/19,100,The Plan,Project Purpose And Objectives,Work BreakdownStructure,ResourceRequirements,Influence Strategy,Risk Management Plan,Budget,Control,Actionable Vision,Resistance Management Plan,Communication Plan,Components of an Implementation Plan,2020/12/19,101,Risk Management Planni

37、ng,2020/12/19,102,Define,Measure,Analyze,Improve,Control,Control Phase,2020/12/19,103,D,D,D,D,D,D,D,D,Waste time,Increasevariation,Gain a betterunderstandingof the system,Reducevariation,Gain usefulinformation,Reducevariation,Lose time inrespondingto the problem,Loss ofproductivitymay increasevariat

38、ion,Type of Action,Look for whatwas differentbetweenindividual points,Take actionbased on thereporteddifference,Study allthe data,Make basicchanges tothe process,Special Cause,Common Cause,Type of Variation,Special Cause,Common Cause,2020/12/19,104,Define whats important,Measure how were doing,Analy

39、ze whats wrong,Improve by fixing whats wrong,Control to guarantee performance,AlliedSignalTotal Quality/Six Sigma Process Improvement Model,2020/12/19,105,2020/12/19,106,2020/12/19,107,2020/12/19,108,2020/12/19,109,2020/12/19,110,2020/12/19,111,2020/12/19,112,2020/12/19,113,2020/12/19,114,6 SIGMA目标和

40、关键,今天的业务环境已经发生变化，以往的业务改进方法不再奏效。6 SIGMA 已经取而代之，成为业界适用性最强 、最成熟和最有效的业务改进方法。数字化 (Digital) 等新的理念在继续推动6 SIGMA的向前发展，使它的功能愈加强大。 “6 SIGMA业务改进运动”有两大目标： 立竿见影的业务改进 可持续的成果 6 Sigma 承认为实现上述目标离不开五大关键，其中包括领导方针、全面的方法、通过专题团队促进成果的实现、使用成套6 SIGMA分析工具和数字化改造。,2020/12/19,115,新的6 SIGMA要求- 达到目标,五项为使“6 SIGMA” 发挥作用而必备的因素： “6 SI

41、GMA”领导方针 全面的领导改进工作的方法 通过专题团队促进成果 “6 SIGMA”分析工具及应用这些工具的规范化、标准化方法 数字化改进，其中包括利用可重复使用的网络工具进行实实在在的改进，一劳永逸地彻底根除缺陷 大部分培训时间用在学习如何使用“6 SIGMA”分析工具上。但是请记住，这只是整个培训课程的一部分。你们还需要牢记其他主要因素。它们缺一不可，否则“6 SIGMA”无法有效地发挥作用。,2020/12/19,116,新的6 SIGMA- 四项领导原则,结合：领导层应该保证所有的改进项目均与本组织的战略目标保持一致。 动员：领导层应该提供明确的方向、可行范围、成功的标准和严格的评审，

42、从而为各团队采取实际行动创造条件。 催化：领导层应该通过严格的时间管理、必要的培训和紧迫的期限，推动项目取得立竿见影的效果。 治理：领导层必须切实监督项目的开展，定期进行严格的评审，及时纠正偏差。,2020/12/19,117,2020/12/19,118,2020/12/19,119,2020/12/19,120,2020/12/19,121,2020/12/19,122,Monitor画面Distortion减少,文件番号 :6-LGENT- 保存年限 : 一年,LG ELECTRONICS./ LGENT PILOT,2001.11.16,-目录-,1）题目定义 2）测定 3）分析 4）

43、改善 5）控制,无限创新 , 达成618 !,2020/12/19,123,1,定量目标,Project 名,Project 选定背景及概要,活动目标,定性目标,活动计划,Team 构成,投资预想项目,支援邀请事项,Z轴控制 装备,STOP移动 提高品质，顾客满意,Team 构成,定义 测定 分析 改善 控制,实行,9.27 9.28 10.10 10.20 11.11 11.20,马龙,夏顺宝,林银淑,高章富张长洋,1. 6TASK TEAM 进行支援 2.相关部门协助,计划制定/实施,数据测定/实施,数据分析/报告,1.直流电源 2.线圈,盛皓,改善测定/跟踪,定义,测定,分析,改善,控制

44、,1.项目登录书,总组生产中画面Distortion缺陷在调整工序缺陷中一直占很 大比重，1）运用6 sigma方法进行改善，解决地磁对画面失真 的影响。2）通过改善活动，理解并运用6sigma改善方法。,Monitor画面Distortion减少,Z=3.5,Z=5,2020/12/19,124,定义,测定,分析,改善,控制,2.Theme选定,在采集的制造缺陷DATA中，画面Distortion占很大比重，为了提高过程品质，我们将地磁中心与显示器DY 中心重合来减少地磁对画面Distortion的影响作为本次改善课题。,2,2020/12/19,125,定义,测定,分析,改善,控制,3.L

45、ogical Tree,缺陷名,1次因子,2次因子,3次因子,预备CTQ,程序参数设置,输入信号,装备差异,调整芯片,信号源,镜头差异,计算机差异,调整数值设定的差异,老化时间,老化时的温度,Aging Room,Monitor本身,地磁,回路,Monitor DY,SIZE调整工位地磁无 Z轴调整,地磁中心DY中心有差异,3,“回路”和“MONITOR DY”目前无法改善,2020/12/19,126,会聚调整、检查,Aging Room,SIZE调整,W/B调整,FOCUS调整,SIZE补正,后盖安装,耐压检测,总检,DDC输入、检查,老化温度 老化时间 ,W/B 调整,尺寸检查 W/B

46、检查 FOCUS检查 会聚检查 冲击检查 ,性能检查,内、外包装,4.Process Mapping,耐压检测 接地检测 底盘安装 ,后盖检查 后盖安装 后盖固定 ,尺寸检查 Save检查 Recall检查 ,会聚调整 会聚检查、补正 ,Size检测 Size补正 手动补正 操作者感观的差异 ,FOCUS调整 ,SIZE调整,DDC输入 DDC检查 Label粘贴 ,定义,测定,分析,改善,控制,参数设置 装备、仪器差异 员工作业 地磁与线体中心位置 - ,外观检查 信号线整理 摆放附件 Bar-code粘贴 ,4,2020/12/19,127,定义,测定,分析,改善,控制,5.SIZE调整过

47、程能力,测量MODEL名：MB500F 测量MODE:高频MODE (60KHZ/75HZ) H SIZE SPEC :2702mm V SIZE SPEC :2002mm 测量日期：2001.10.11,PILOT人员对调整SIZE 工位的过程能力进行DATA采集和分析：,根据查表得目前过程能力Z3.5 需改善,5,H Distortion,V Distortion,2020/12/19,128,定义,测定,分析,改善,控制,6. DATA正规性检验,6,PILOT人员对调整SIZE 工位的过程能力DATA采集进行正规性验正：,P-VALUE 0.05数值符合正态分布,2020/12/19,

48、129,定义,测定,分析,改善,控制,7.对SIZE装备的GAGE R&R,Gage R&R Source VarComp StdDev 5.15*Sigma Total Gage R&R 0.00139 0.037312 0.19215 Repeatability 0.00139 0.037312 0.19215 Reproducibility 0.00000 0.000000 0.00000 MAN 0.00000 0.000000 0.00000 Part-To-Part 0.27747 0.526756 2.71279 Total Variation 0.27886 0.528075

49、2.71959 Source %Contribution %Study Var Total Gage R&R 0.50 7.07 Repeatability 0.50 7.07 Reproducibility 0.00 0.00 MAN 0.00 0.00 Part-To-Part 99.50 99.75 Total Variation 100.00 100.00 Number of Distinct Categories = 20,%Study Var =7.07%10%,本测量系统是 可以使用的,测试点：显示画面顶部,2001.10.10对调整装备进行了GAGE R&R,7,2020/12

50、/19,130,定义,测定,分析,改善,控制,8.因子分析计划,根据 Logic Tree 的分析，结合实际经验，并且充分考虑到改善的可行性和必要性，对已选定,的预备CTQ进行分阶段的分析。,分析计划,预备CTQ,因子水平选定,备注,装备调整数值设定的差异,地磁中心DY中心有差异,镜头差异,10月19日 PILOT ROOM,10月19日 PILOT ROOM,10月20日 PILOT ROOM,仿照线体调整环境,仿照线体调整环境,仿照线体调整环境,1) Spec Data,2)Distortion Data1.0mm,1)两中心不重合,2)两中心重合,2)镜头2,1)镜头1,10月20日 P

51、ILOT ROOM,仿照线体调整环境,SIZE调整工位地磁无 Z轴调整,2)有Z 轴,1)无Z 轴,8,2020/12/19,131,定义,测定,分析,改善,控制,8.因子分析1装备设定的差异,Two sample T for装备调整数值设定的差异 N Mean St Dev SE Mean Spec Data 12 270.000 0.640 0.18 超出Spec1.0mmData 12 270.042 0.689 0.20 95% CI for mu 0.5mm - mu 1.0mm: ( -0.60, 0.52) T-Test mu 0.5mm = mu 1.0mm (vs not =

52、): T = -0.15 Both use Pooled StDev = 0.665 DF = 22 P = 0.88,P0.05,P0.880.05 因此装备数值设定是 没有差异,测量MODEL名：MB500F 测量MODE:高频MODE (60KHZ/75HZ) H SIZE SPEC :2701mm V SIZE SPEC :2001mm DATA采集时间：2001.10.19 地点 ：PILOT ROOM 人员：高章富，盛皓,装备调整数值设定的差异Data采集方法：1）把SET在Size调整装备有关Distortion参数设定为规格内，进行 调整及测量。 2）把SET在Size调整装备

53、有关Distortion参数设定为超出规格1mm， 进行调整及测量。,注：有关Distortion参数，有Pin Balance； Parallelogram；Trapezoid ；Side pincushion.,9,2020/12/19,132,定义,测定,分析,改善,控制,8.因子分析2地磁中心DY中心的差异,Two sample T for 重合 vs 不重合 N Mean St Dev SE Mean 重合 12 270.042 0.582 0.17 不重合 12 268.37 1.63 0.47 95% CI for mu重合- mu不重合 : ( 0.63, 2.70) T-Te

54、st mu重合= mu不重合 (vs not =): T = 3.34Both use Pooled StDev = 1.22 DF = 22 P = 0.0029,P0.00290.05因此两中心重合 和不重合是有差异的,测量MODEL名：MB500F 测量MODE:高频MODE (60KHZ/75HZ) H SIZE SPEC :2701mm V SIZE SPEC :2001mm DATA采集时间：2001.10.19 地点 ：PILOT ROOM 人员：高章富，盛皓,地磁中心DY中心有差异Data采集方法：1）把SET DY 中心与地磁的物理中心重合处，进行调整及测量。 2）把SET

55、DY 中心与地磁的物理中心不重合处，进行调整及测量。,10,2020/12/19,133,定义,测定,分析,改善,控制,8.因子分析3镜头差异,Two sample T for镜头1 vs 镜头2 N Mean StDev SE Mean SIZE 1 12 270.208 0.916 0.26 SIZE 2 12 269.75 1.01 0.29 95% CI for mu SIZE 1 - mu SIZE 2: ( -0.36, 1.28) T-Test mu SIZE 1 = mu SIZE 2 (vs not =): T = 1.16 Both use Pooled StDev = 0

56、.965 DF = 22 P = 0.26,P0.260.05因此两个 镜头之间没有差异,测量MODEL名：MB500F 测量MODE:高频MODE (60KHZ/75HZ) H SIZE SPEC :2701mm V SIZE SPEC :2001mm DATA采集时间：2001.10.20 地点 ：PILOT ROOM 人员：高章富，盛皓,ER9300装备镜头差异Data采集方法：同一台ER9300装备用两个镜头交换使用进行SET调整及测量。,11,2020/12/19,134,定义,测定,分析,改善,控制,8.因子分析4Size调整工位地磁有无Z轴调整,Two sample T for

57、有Z vs 无Z N Mean StDev SE Mean 有Z 12 1.167 0.389 0.11 无Z 12 0.667 0.246 0.071 95% CI for mu有Z轴 - mu无Z轴( 0.22, 0.776) T-Test mu有Z = mu无Z (vs not =): T = 3.76 Both use Pooled StDev = 0.326 DF = 22 P = 0.0011,P0.00110.05因此Size调整 工位地磁有Z轴和无Z轴是 有差异的,测量MODEL名：MB500F 测量MODE:高频MODE (60KHZ/75HZ) H SIZE SPEC :2701mm V SIZE SPEC :2001mm DATA采集时间：2001.10.20 地点 ：PILOT ROOM 人员：高章富，盛皓,SIZE调整工位地磁有无Z轴差异Data采集方法：1）把SET放在有Z轴的地磁框内,进行SIZE调整及测