《生产质量控制》课程教学课件（PPT讲稿）CH12 Design for Manufacturing

Product Design and Development1.Introduction2.DevelopmentProcessesandOrganizations3.ProductPlanning4.IdentifyingCustomerNeeds5.ProductSpecifications6.ConceptGeneration7.ConceptSelection8.Concept Testing9.ProductArchitecture10.Industrial Design12.DesignforManufacturing13.Prototyping14.DesignfortheEnvironment

Product Design and Development 1. Introduction 2. Development Processes and Organizations 3. Product Planning 4. Identifying Customer Needs 5. Product Specifications 6. Concept Generation 7. Concept Selection 8. Concept Testing 9. Product Architecture 10. Industrial Design 12. Design for Manufacturing 13. Prototyping 14. Design for the Environment

Design for ManufacturingChapter 12

Design for Manufacturing Chapter 12

Product Development ProcessConceptDetailProductionSystem-LevelTestingandPlanningDesignDevelopmentDesignRefinementRamp-Up★★★★★How canwe emphasizemanufacturingissuesthroughout the development process?

Planning Product Development Process Concept Development System-Level Design Detail Design Testing and Refinement Production Ramp-Up How can we emphasize manufacturing issues throughout the development process?

DefinitionDesign for manufacturing (DFM) is a developmentpractice emphasizingissuesmanufacturingthroughout the product development process.SuccessfulDFM resultsinlowerproductioncostwithout sacrificing product qualityStarted by Boothroyd and Dewhurst

Definition • Design for manufacturing (DFM) is a development practice emphasizing manufacturing issues throughout the product development process. • Successful DFM results in lower production cost without sacrificing product quality. • Started by Boothroyd and Dewhurst

Importance of DFM: Up to 80% of the cost of a new part islocked in during the early design phaseswherematerialandmanufacturingprocesses are defined

Importance of DFM • Up to 80% of the cost of a new part is locked in during the early design phases where material and manufacturing processes are defined

“OEMs are drawn to China by the lure ofreduced manufacturing costs via extremely lowlabor rates. But it is a given that most of thecost of a product is fixed during design, so thebest time to find cost reductions is during thedesign stage, not during manufacturing. Yetmost products are moved offshore without anysuch considerations.Dewhurst

“ OEMs are drawn to China by the lure of reduced manufacturing costs via extremely low labor rates. But it is a given that most of the cost of a product is fixed during design, so the best time to find cost reductions is during the design stage, not during manufacturing. Yet most products are moved offshore without any such considerations.” Dewhurst

Three Methods to Implement DFM1.Organization: Cross-Functional Teams2. Design Rules: Specialized by Firm3. CAD Tools

Three Methods to Implement DFM 1. Organization: Cross-Functional Teams 2. Design Rules: Specialized by Firm 3. CAD Tools

DFM.Process1- estimate manufacturing costs2- reduce the costs of components3- reduce the costs of assembly4- reduce the costs of supporting production5- consider the impact of DFM decisions onotherfactors

DFM Process 1- estimate manufacturing costs 2- reduce the costs of components 3- reduce the costs of assembly 4- reduce the costs of supporting production 5- consider the impact of DFM decisions on other factors

Three ways to estimatemanufacturing costs: Costs in the manufacturing system-Component- Assembly- Overhead· Fixed and variable costsBOMFile

Three ways to estimate manufacturing costs • Costs in the manufacturing system – Component – Assembly – Overhead • Fixed and variable costs • BOM File

ToolingEquipmentInformationRawMaterialsLabor>FinishedGoodsMANUFACTURINGSYSTEMPurchasedComponentsEnergyServicesWasteSuppliesFromProductDesignandDevelopmentbyKarlUlrichandStevenEppinger(McGraw-Hill/lrwin）