上海交通大学：《现代机械工程图学》教学资源_教学课件_Lec08_QFD

Quality Function Deployment ME 250:Design Manufacturing I School of Mechanical Engineering Shanghai Jiao Tong University 1

Shanghai Jiao Tong University 1 Quality Function Deployment ME 250: Design & Manufacturing I School of Mechanical Engineering

Outline Objectives of QFD ■QFD Structure The General Process of QFD Project Plan ■Gantt Charts Shanghai Jiao Tong University 2

Shanghai Jiao Tong University 2 Outline n Objectives of QFD n QFD Structure n The General Process of QFD n Project Plan n Gantt Charts

QFD(Quality Function Deployment) QFD originated in 1972 at Mitsubishi's Kobe shipyard site. ■The "house of quality”is the basic design tool of the management approach. ■The“house of quality”is a kind of conceptual map that provides the means for interfunctional planning and communications. Shanghai Jiao Tong University 3

Shanghai Jiao Tong University 3 QFD (Quality Function Deployment) n QFD originated in 1972 at Mitsubishi’s Kobe shipyard site. n The “house of quality” is the basic design tool of the management approach. n The “house of quality” is a kind of conceptual map that provides the means for interfunctional planning and communications

Quality Function Deployment “Let the customer be heard” QFD is a tool to help understand the design problem and to translate customer requirements into a technical description of what needs to be designed. QFD focuses and coordinates skills within an organization,first to design,then to manufacture and market goods. Shanghai Jiao Tong University 4

Shanghai Jiao Tong University 4 Quality Function Deployment “Let the customer be heard” QFD is a tool to help understand the design problem and to translate customer requirements into a technical description of what needs to be designed. QFD focuses and coordinates skills within an organization, first to design, then to manufacture and market goods

Effect of using QFD Japanese automaker with QFD made fewer changes than U.S.company without QFD 3cC电P⊙Y o● ecmtom m 9g3o1 Qto▣P✉R9o 9han9eC9rRPA。 2024 1A间 03 中3 onins @n3 Menthy ies i 61Gm05 Shanghai Jiao Tong University 5

Shanghai Jiao Tong University 5 Effect of using QFD

Objectives of QFD Identify exactly what the design goals are and how they are going to be achieved ■I.e,translate“customer requirements”into workable “engineering solutions” a Forces "fresh eyes"on the design problem;prevents getting stuck prematurely with preconceived concepts Reduces risks of delay in new product introduction due to poor specifications,unrecognized interdependencies of specifications,etc... Provides formal record of conceptual design process for documentary,legal,management,benchmarking,etc. Shanghai Jiao Tong University 6

Shanghai Jiao Tong University 6 Objectives of QFD n Identify exactly what the design goals are and how they are going to be achieved n I.e., translate “customer requirements” into workable “engineering solutions” n Forces “fresh eyes” on the design problem; prevents getting stuck prematurely with preconceived concepts n Reduces risks of delay in new product introduction due to poor specifications, unrecognized interdependencies of specifications, etc… n Provides formal record of conceptual design process for documentary, legal, management, benchmarking, etc

CAs and ECs Customer Attributes(CAs):Customers use to describe products and product characteristics. What do customers want? Engineering Characteristics(ECs): Engineers use to describe the products. How can we change the product? Shanghai Jiao Tong University 7

Shanghai Jiao Tong University 7 CAs and ECs n Customer Attributes(CAs) : Customers use to describe products and product characteristics. What do customers want? n Engineering Characteristics(ECs): Engineers use to describe the products. How can we change the product?

The General Process Customer requirements Design requirements Part characteristics Manufacturing operations Production requirements Shanghai Jiao Tong University 8

Shanghai Jiao Tong University 8 The General Process Customer requirements Part characteristics Manufacturing operations Production requirements Design requirements

Building the House ■For a car door Customer Attributes(CAs) Good operation and use Good appearance Shanghai Jiao Tong University 9

Shanghai Jiao Tong University 9 Building the House n For a car door Customer Attributes(CAs) Good operation and use Good appearance

Customer Attributes(CAs Good operation and use -Easy to open and close door Isolation ■Arm rest a Good appearance ■Clean ▣Fit Shanghai Jiao Tong University 10

Shanghai Jiao Tong University 10 Customer Attributes(CAs) n Good operation and use n Easy to open and close door n Isolation n Arm rest n …… n Good appearance n Clean n Fit n ……