Sheet Metal Forming Processes and Die Design 冲压工艺及模具设计 College of Materials Science and Engineering Lecturer ： CAO Xiao-qing （曹晓卿） May,2009 Taiyuan University of Technology

Chapter 1 INTRODUCTION Main contents: The characteristics of sheet forming The characteristics of sheet forming Materials used for sheet forming Materials used for sheet forming Categories of sheet forming processes Categories of sheet forming processes The contents of this course The contents of this course References References Key points: Categories of sheet forming processes Categories of sheet forming processes

Sheet （板料）, die （模具）, press （压力机）， formability （成形性） ferrous metal （钢铁材料 / 黑色金属） non-ferrous metal （有色金属） non-metallic materials （非金属材料） cutting process( 分离工序）, forming (plastic deformation)process （成形 工序） New Words:

§1.1 The characteristics of sheet forming processes Definition Definition 1. technological characteristics good accuracy of dimension, adequate strength, light weight, broad range of possible dimension; 2. economic characteristics productivity, efficient use of material,easy servcing of machines,worker with less basic skills

§1.2 Materials used for sheet forming 1. Basic properties required for stamping good formability good formability good surface quality good surface quality economy economy 2. Materials commonly used in stamping ferrous metals ferrous metals non-ferrous metals non-ferrous metals non-metal or non-metallic materials non-metal or non-metallic materials

§1.3 Categories of sheet forming processes 1. Cutting process blanking （落料） punching （冲孔） cut-off （切断） parting （剖切） lancing （切口） shearing （剪切） Shaving （整修） 2. Forming process bending ( 弯曲 ) deep drawing （拉深） flanging （翻孔） bulging （胀形） necking （缩口） coining （压印） spinning （旋压） curling （卷圆）

§1.4 Sheet metal forability and formign limit 1. Formbility 2. Forming limit

§1.5 The contents of sheet forming processes and die design course 1. Content of the course fundamental theory: blanks, deformation mechanism fundamental theory: blanks, deformation mechanism determine processing procedure determine processing procedure die structure and design norm die structure and design norm failure analysis: quality, problem solving failure analysis: quality, problem solving 2. Characteristics of the course practical practical 3. References Books and journals Books and journals

References Vukota Boljanovic 《 Sheet Metal Forming Processes and Die Design 》 Industrial Press,2004 ， Vukota Boljanovic 《 Sheet Metal Forming Processes and Die Design 》 Industrial Press,2004 ， 卢险峰 编著《冲压工艺学》机械工业出版社， 2000 卢险峰 编著《冲压工艺学》机械工业出版社， 2000 王孝培主编《冲压手册》机械工业出版社， 王孝培主编《冲压手册》机械工业出版社， 扩充性双语资料： 扩充性双语资料： 1.Vukota Boljanovic,et al. 《 Die Design Foundamentals 》 Industrial Press Inc Vukota Boljanovic,et al. 《 Die Design Foundamentals 》 Industrial Press Inc Z. Marciniak,et al. 《 Mechanics of Sheet Metal Forming 》 Butterworth- Heinemann Publications, Z. Marciniak,et al. 《 Mechanics of Sheet Metal Forming 》 Butterworth- Heinemann Publications, D. Banabic. 《 Formability of Metallic Materials 》 Spring-Verlag, D. Banabic. 《 Formability of Metallic Materials 》 Spring-Verlag, Ivana Suchy. 《 Handbook of Die Design 》 McGraw-Hill, Ivana Suchy. 《 Handbook of Die Design 》 McGraw-Hill,1997