質(zhì)量功能展開QFD1261753

1、14質(zhì)量功能展開質(zhì)量功能展開2質(zhì)量功能展開 將客戶的要求及愿望(即客戶的心聲)轉(zhuǎn)變?yōu)楫a(chǎn)品/服務的要求. 識別并控制主要的制造過程參數(shù). 產(chǎn)品特性、過程參數(shù)及控制變量的文檔關系。3為什么需要使用QFD? 更短的開發(fā)時間 更少的工程更改 提高客戶的滿意度 更好的過程理解，取得更佳的執(zhí)行成效 降低制造成本 將最好的產(chǎn)品及服務提供與客戶 改善組織內(nèi)溝通及分配任務執(zhí)行4客戶要客戶要求及重求及重要度要度保證保證措施措施關系矩陣市場競爭性評估措施重要度相互矩陣5質(zhì)量功能展開的四大主要階段 質(zhì)量屋 階段 1: 產(chǎn)品規(guī)劃 質(zhì)量屋 階段 2: 零件配置 質(zhì)量屋 階段 3: 過程計劃 質(zhì)量屋 階段 4: 工藝/質(zhì)量

2、控制矩陣產(chǎn)品及過程的規(guī)劃階段執(zhí)行成效測量Cust Wants質(zhì)量屋 1質(zhì)量屋 2Perf Meas產(chǎn)品特性質(zhì)量屋 4控制方法Proc Char質(zhì)量屋 3Prod Char過程特性客戶的心聲客戶的心聲7質(zhì)量功能展開 質(zhì)量屋 1產(chǎn)品規(guī)劃執(zhí)行成效測量客戶需求關系矩陣8客戶需求 如掛墻墊如：沒有任何的污點/油漬； 適合一般市場要求； 獨立式掛靠； 穩(wěn)固于墻上； 易于從墻上取下； 容易打開； 有防護；客戶需求：由客戶確定的一系列產(chǎn)品及服務的特 性.房屋 1 掛墻墊例子Performance Measures各項需求的重要度各項需求的重要度沒有任何的污點/油漬適合一般市場要求獨立式掛靠穩(wěn)固于墻上易于從墻上

3、取下容易打開有防護客戶需求10對各需求項進行重要度評分 據(jù)客戶對各項要求的重要性，進行100分值范圍內(nèi)評分質(zhì)量屋 1 掛墻墊 執(zhí)行成效測量需求項的重要度評分需求項的重要度評分沒有任何的污點/油漬15適合一般市場要求25獨立式掛靠10穩(wěn)固于墻上20易于從墻上取下15容易打開5有防護10客戶需求12執(zhí)行成效測量 這是一種對客戶要求的產(chǎn)品執(zhí)行情況的技術評估，進行測量及控制，并不是實際的測試。13掛墻墊的執(zhí)行成效測量沒有任何的污點/油漬 適合一般市場要求 獨立式掛靠； 穩(wěn)固于墻上； 以12類筆書寫，后檢查污漬情況以12類筆書寫，后檢查污漬情況檢測靠背板的硬度檢測穩(wěn)掛于墻上的時間及其粘住墻上的程度客戶要

4、求執(zhí)行成效測量質(zhì)量屋 1 掛墻墊執(zhí)行成效測量Importance以12類筆書寫，后檢查污漬情況檢測靠背板的硬度包裝測試易掉落程度檢測穩(wěn)掛于墻上的時間粘住墻上的程度沒有任何的污點/油漬15適合一般市場要求25獨立式掛靠10穩(wěn)固于墻上20易于從墻上取下15容易打開5有防護10客戶要求15將客戶要求與執(zhí)行成效的測量結果聯(lián)系起來執(zhí)行成效的測量對客戶于各個要求項的滿意度的測算度如何？用如下的等級描述填寫矩陣。:1 星期, 3 中等的, 9 強度大,空白 即指沒有任何關質(zhì)量屋 1 掛墻墊執(zhí)行成效測量Importance以12類筆書寫，后檢查污漬情況檢測靠背板的硬度包裝測試易掉落程度檢測穩(wěn)掛于墻上的時間粘住

5、墻上的程度沒有任何的污點/油漬15 3適合一般市場要求25 9獨立式掛靠10 9穩(wěn)固于墻上20 3 9 3 易于從墻上取下15 9容易打開5 9有防護10 1客戶要求17Weighted Importance Weighted importance is a calculation used to prioritize the information in a QFD matrix = the sum of the products of the importance and relationship levels for each column in the QFD matrix. In H

6、ouse 1, the weighted importance determines which Performance Measures are the greatest predictors of customer satisfaction.Weighted Importance for House 1Demanded Qualities(15 x 3) + (25 x 9) = 270ImportanceWrite on with 12 pensBackboard stiffnessPackaging testPeel energyTime on Wall# of surfaces it

7、 sticks toSmear-Free153Common Markers259Freestanding109Stays on Wall20393Easily Removed from Wall 159Opens Easily59Protects101Weighted Importance2709055195 18060Weighted %321162321719The Roof of the House Compares the effect that a change in one Performance Measure would have on the other Performanc

8、e Measures. Does not interact with other portions of the house. Uses a scale of: strong positive, positive, none, negative, and strong negative.Roof of the House (House 1)ImportanceWrite on with 12 pensBackboard stiffnessPackaging testPeel energyTime on Wall# of surfaces it sticks toSmear-Free153Com

9、mon Markers259Freestanding109Stays on Wall20393Easily Removed from Wall 159Opens Easily59Protects101+ strong positive + positive - negative- strong negative-Improving peel energy may have a strong negative impact on the time the sheets stick on a wall.Desirable to decreaseDesirable to increaseNo pre

10、ferenceDirection for improvement21Chart A-1 The Quality TableCustomer Demands (What)QualityCharacteristics (How)A N Plan P B C DTotal Total% Company nowCompetitor xCompetitor y PlanRate ofimportanceCompany nowCompetitor xCompetitor yPlanRatio of improvementSales pointAbsolute weightDemanded WeightCo

11、rrelations: 9 = strong correlation 3 = some correlation 1 = possible correlationSales points = 1.5, 1.2, or 1D = A x B x CB =PN4242692074439613219171Easy to holdDoes not SmearPoint lastsDoes not roll105 465 339 219 1122 9 41 30 19 995” 3pgs 3g 70%5 5pgs 2g 80%4” 2.5p 4g 60%5.5” 6pgs 2g 80% 3 4 3 3 4

12、 1 1 3 14 4 5 4 5 5 1 1.2 4.8 23 5 4 5 3 5 1.25 1.5 9.4 44 3 3 3 3 4 1.33 1 4 19 21.2 100LengthTime betweensharpeningLead dustgeneratedHexagonality22QFD House 2Product QualificationProductCharacteristicsPerformance MeasuresRelationshipMatrix23Product Characteristics Attributes that are observable an

13、d/or measurable on the final product. Examples: thickness, color, weight, size, raw material attributes24Product CharacteristicsWhat are the Product Characteristics of the Easel Pad? How much will changes in those characteristics affect the Performance Measures? Use a scale of 1 for weak, 3 for medi

14、um and 9 for strong to rate the effects.House 2 - Product Qualification MatrixImportanceType of adhesiveAmount of adhesiveThickness of coatingType of coatingType of paperPackaging MaterialsEasel BackingWrite on with 12 pens32 399Backboard stiffness11 119Packaging test6 9Peel energy2399 3Time on Wall

15、213331# of surfaces it sticks to799 Weighted Importance333 333 170 288 320 54 168Weighted %2020101719310Performance MeasuresProduct CharacteristicsStrong 9Medium 3Weak 1None 0Performance Measures26QFD House 3Process PlanningProcessCharacteristicsProduct CharacteristicsRelationshipMatrix27Process Cha

16、racteristics Stages in the process that affect the quality, composition, and characteristics of the product. Observable while the process is running. Examples: Adhesive coating method, coating thickness, oven or web temperature, viscosity, melt temperature28UnwindPrinted PaperReleaseCoatingDryingOve

17、nPrimerCoatingDrying OvenAdhesiveCoatingDryingOvenJumboWind-up Release CoatPrimerAdhesiveCoatedJumboSheeting Cutting PaddingBackcardApplication PackagingBacksheetPaddingCompoundBackcardEasel Pad Process Flow29Process CharacteristicsWhat are the stages in the manufacturing process for Easel Pads?Whic

18、h product characteristics are impacted by each stage?Use a level of 1, 3, 9 to rate the impactHouse 3 - Process Planning MatrixProduct CharacteristicsProcess CharacteristicsImportanceUnwind TensionLAB Coating WeightAdhesive ViscocityAdh. Coating WeightDrying TemperatureSlitting/Laminating Packaging

19、Unwind TensionType of adhesive20 993Amount of adhesive20 393 Thickness/quality of LAB coating10 9 Type of LAB coating17 9 Type of paper193 Packaging materials3 19Easel Backing10 31Weighted Importance57 243 240 360 603337Weighted %6242335634Strong 9Medium 3Weak 1None 0Product Characteristics31QFD Hou

20、se 4Process Control PlanningControl MethodsProcess CharacteristicsRelationshipMatrix32Control Methods The variables in a process step that can be adjusted. Example: line speed, pump speed, oven temperature, nip pressure.33Control Methods In which key stage of the process would improvement efforts ha

21、ve the greatest impact on product quality? What adjustments are you able to make in this stage? What is the impact of each adjustment on the Product Characteristics?Adhesive Coating StageImportanceRatio of raw materialsMixing speedMixing timePump speedPump pressureLine speedLAB Coating Weight24993Ad

22、hesive Viscocity23911Adh. Coating Weight35 993Weighted Importance207 2323 531 531 177Weighted %1422363612Process CharacteristicsControl MethodsStrong 9Medium 3Weak 1None 0House 4 - Process Control PlanningProcess CharacteristicsTracing the Process back to the Customer39 Slitting Tension33Slitting Sp

23、eed119Laminator Nip Pressure29Temp Z1-439Unwind Tension333Line Speed1099Pump Pressure3199Pump Speed311Mixing Time11Mixing Speed19Ratio of Raw Materials126242335634House 3Unwind Tension LAB Coating WeightAdhesive ViscosityAdh Coating WeightDrying TempSlitting/LaminatingPackaging Unwind TensionHouse 4939Type of Adhesive20993939Amount of Adhesive20393313Thickness of Coating1099Type of Coating179911Type of Paper1939Packaging Materials31993Easel Backing10313211623217House 1Write on w/12 P