Stamping Forming Technology and Die Design Prof. SU Juanhua School of Materials Science and Engineering Henan University of Science and Technology

Contact methods: E-mail: sujh@haust.edu.cn Tel: 13592088565

Information Lecture: Bilingual lectures Office time & location: Library, room 103; Monday ~ Friday Assessment Methods: 10% from attended class 10% from homeworks 10% from experiment 70% from final examination

Teaching Plan Weeks Contents 1-2 Introduction, Blanking 3-5 Blanking Die Design, Bending, Experiment 10-11 Deformation process and mechanical analysis in deep drawing,Calculation of the dimensions in the working portion,Typical structures of drawing die, Experiment 12-14 Forming, Characteristics of Stamping and Properties of Sheet Metal Forming, Experiment 15 Final Examination

Objectives of the subject Basic knowledge on drafting the stamping technology scheme. Basic knowledge on dies designing. Improving the language and communication skills through report writing and class discussion. An ability to read scientific papers on materials field in English.

Bilingual education: the use of a second or foreign language in school for the teaching of content subjects.

INTRODUCTION Metal processing is a branch of engineering science, which deals with the manufacture of metallic parts and structures through the processes of plastic forming, machining, welding and casting. This book focuses on the stamping forming technology and its die design in metal processing.

INTRODUCTION Stamping is mainly used in sheet plate forming, which can be used not only in metal forming, but also in non-metal forming. In stamping forming, under the action of dies, the inner force occurs in the plate. When the inner force reaches a certain degree, the corresponding plastic deformation occurs in all the blank or in certain region of it. Thus the part with certain shape, size and characteristics is produced.

INTRODUCTION Stamping is carried out by dies and press. It is of high productivity. Mechanization and automatization for stamping can be realized conveniently owing to its easy operation. Because the stamping part is produced by dies, it can be used to produce the complex part that may be manufactured with difficulty by other processes.

INTRODUCTION The stamping part can be used generally without further machining. Usually, stamping process can be done without heating. Therefore, not only does it save material but also energy. Moreover, the stamping part has the characteristics of light weight and high rigidity.

INTRODUCTION Stamping processes vary with the material, the shape, the size and the accuracy demands, and also the output of the part. It can be classified into two categories: cutting process and forming process. The objective of cutting process is to separate the part from blank along a given contour line in stamping. The surface quality of the cross-section of the separated part should meet a certain demand.

INTRODUCTION In forming processes, such as bending，deep drawing, local forming, bulging，flanging，necking, sizing and spinning, the blank should be plastically deformed without fracture and wrinkle, and the part is produced to satisfy the required shape and dimensional accuracy.

Widely used stamping processes INTRODUCTION Widely used stamping processes

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