《Statistical Quality Control》课程教学课件（PPT讲稿）02 Total quality Management

Total gualitymanagement-Quality management is theenterprise management principlesWuhan univenity or teehnologyMechanical and electrical engineeringcollegeIndustrial engineering2025/8/7

2025/8/7 Total quality management —Quality management is the enterprise management principles Wuhan university of technology Mechanical and electrical engineering college Industrial engineering

The main content> The development of quality management> The concept and characteristics of totalquality management2025/8/7

2025/8/7 The main content ➢ The development of quality management ➢ The concept and characteristics of total quality management

n brief history or auality managementEver since the human production activities , and will havequality problems. Because no matter how simple items, howprimitive mode of production , there is a question whether tomeet aparticularpurposeWith thedevelopment ofdiversehuman demandforproductsandproductivity,Peoplehavethequalityconsciousness gradually.Thepros and cons ofqualitygradually become an important factor in the CommodityExchange.To ensurequality,weneedto producerawmaterials,instrumentsoflabor,laborskillsproducersproposed the correspondingrequirements.In a sense,this isthequalityofmanagement.Mbricrhistoryof qualitymanagemcnt2025/8/7

2025/8/7 A brief history of quality management A brief history of quality management Ever since the human production activities , and will have quality problems. Because no matter how simple items, how primitive mode of production , there is a question whether to meet a particular purpose . With the development of diverse human demand for products and productivity , People have the quality consciousness gradually .The pros and cons of quality gradually become an important factor in the Commodity Exchange. To ensure quality , we need to produce raw materials, instruments of labor , labor skills producers proposed the corresponding requirements. In a sense, this is the quality of management

AbriefhistoryofaualitymanagementQuality management is the development of productionwith the progress of science and technology and graduallyformed and developed, the quality of management realscientific sense from the early twentieth centurybegan.Itis developed to roughly experienced three stages:Quality InspectionStatistical Process ControlTotal Ouality Managementhistory ol quality managemcnt2025/8/7

2025/8/7 A brief history of quality management Quality management is the development of production with the progress of science and technology and gradually formed and developed , the quality of management real scientific sense from the early twentieth century began . It is developed to roughly experienced three stages: Quality Inspection Statistical Process Control Total Quality Management history of quality management

Product is relatively simple, mainly manual mode of production。Operator's QualityCraftersparticipateinthewholeprocessofhandicraftManagementproduction,makingcraftsfortheirprideandvaluetheirreputatiorkicheckedhandicraftartisanstoensurethat well-madecraftsmotivation.Qualitybyonepersonorafewpeople incharge;Theindustrial revolutioncreatedtheindustrial divisionoflabor.EachworkerisForeman qualityonlyresponsibleforasmallpartoftheeachproduct.Taylorisputforwardinmanagementproduction should beseparateplanning andexecution,production and inspectionimportancetothe role of theforeman in the aspect ofquality assurance,transfertheresponsibilityoftheperformqualityinspectionbytheoperatortotheforeman.Quality ManagementInsomefactoriesbegantosetupafull-timeinspectiondepartment.Inspection（member)qualityinspectionofproducedproducts,defectiveornonconformingsectorproductidentification.Thequalityinspectionstage2025/8/7

The quality inspection stage 2025/8/7 Product is relatively simple, mainly manual mode of production。 Crafters participate in the whole process of handicraft production,making crafts for their pride and value their reputation is checked handicraft artisans to ensure that well-made crafts motivation . Quality by one person or a few people in charge ; Operator's Quality Management Foreman quality management The industrial revolution created the industrial division of labor. Each worker is only responsible for a small part of the each product. Taylor is put forward in production should be separate planning and execution, production and inspection, importance to the role of the foreman in the aspect of quality assurance, transfer the responsibility of the perform quality inspection by the operator to the foreman. Quality Management Inspection ( member ) sector In some factories began to set up a full-time inspection department, quality inspection of produced products, defective or nonconforming product identification

Frederick W.Taylor"Thefatherof scientificmanagement"contributiontothequality management:Introduced the concept of product inspection,and intheprincipleof thebasicprincipleofproductionmanagement,establish thestatus oftheproductinspection.Gotfurtheremphasizesthe importanceofqualitymanagement.1 Every movement of workers operating for scientific research, to replace the old.thumb labor operation.2. Scientific selection of workers , and training and education.3. Standardization work.Managers and workers in the work and responsibilities have division.Taylor'scontributiontothequalitymanagement2025/8/7

2025/8/7 Frederick W.Taylor "The father of scientific management" contribution to the quality management: Introduced the concept of product inspection, and in the principle of the basic principle of production management, establish the status of the product inspection. Got further emphasizes the importance of quality management. Taylor's contribution to the quality management 1、Every movement of workers operating for scientific research, to replace the old, thumb labor operation. 2、Scientific selection of workers , and training and education. 3、Standardization work. 4、Managers and workers in the work and responsibilities have division

G.S.Radford developed the Taylor's theory.Two of his most important contributions are:1.in the design stage of the product began to considerproduct quality point2.To improve product quality and productivity, combinedwith cost reductionideas.Redford'scontributiontothequalitymanagement2025/8/7

2025/8/7 G.S.Radford developed the Taylor's theory. Two of his most important contributions are: 1.in the design stage of the product began to consider product quality point 2.To improve product quality and productivity, combined with cost reduction ideas. Redford's contribution to the quality management

Use law and agreement to restrict producers1.the 18th century BC, the code of hammurabi: if a housebuilderfor an artificial, due to insecure building,housescollapsed as aresult, make the owner died, then the buildershall be put to death;2.429 BC, the babylonian works, for the royal jade inlaid goldring on the production, to ensure that 2o years will not dropdown, or factory will 10 marla's money for compensation as apunishment;2025/8/7Qualityinspectionstage:controlandmanagement

Quality inspection stage: control and management 2025/8/7 Use law and agreement to restrict producers. 1.the 18th century BC, the code of hammurabi: if a house builder for an artificial, due to insecure building, houses collapsed as a result, make the owner died, then the builder shall be put to death; 2.429 BC, the babylonian works, for the royal jade inlaid gold ring on the production, to ensure that 20 years will not drop down, or factory will 10 marla's money for compensation as a punishment;

Product quality depends on the product after the completion ofinspection to ensure that belongs to the "gatekeepers" later on.口even if found defectivegoods, scraptheloss ofthefaitaccomplialready cannotbe redeemed:Approach to take full inspection checks, wide range of large ,2resource-intensive, increase costs, not conducive to improvingproductivity.3Some productsbelongdestructivetesting inspectionSuch an objective contradiction encourage people to explorenew ideas and new methods of quality management2025/8/7Thelackofquality inspectionstageof qualitymanagement

The lack of quality inspection stage of quality management 2025/8/7 Product quality depends on the product after the completion of inspection to ensure that belongs to the "gatekeepers" later on, even if found defective goods, scrap the loss of the fait accompli already cannot be redeemed; 1 Approach to take full inspection checks, wide range of large , resource-intensive , increase costs, not conducive to improving productivity. 2 3 Some products belong destructive testing inspection . Such an objective contradiction encourage people to explore new ideas and new methods of quality management

Fromthe1920s.somecountrieshavedevelopedandreleasedatoleranceIn1924.BellLabsAmericanstandards to ensure interchangeability andquality batch product consistencyStatisticalMathematicsexpertWAShewhartdevelopedastatisticalcontroltablecanbeusedtomonitortheproduction.People began to study the theory of1930,H - E Dodge andprobability and mathematical statistics inQuality ManagementH · G · Romig prepareda sampleofseveraltables.口Until WorldWarIl,statistical qualitycontrol method was widely used"Prior control, prevention of waste ," theSince then,theU.S.governmentnew ideas of quality managementrequires suppliers to be using thesemethods.Developmentof statisticalgualitycontrol2025/8/7

Development of statistical quality control 2025/8/7 From the 1920s , some countries have developed and released a tolerance standards to ensure interchangeability and quality batch product consistency . People began to study the theory of probability and mathematical statistics in Quality Management. "Prior control, prevention of waste ," the new ideas of quality management  In 1924, Bell Labs American Statistical Mathematics expert WA Shewhart developed a statistical control table can be used to monitor the production . 1930 ,H ·E Dodge and H ·G ·Romig prepared a sample of several tables. Until World War II, statistical quality control method was widely used. Since then, the U.S. government requires suppliers to be using these methods