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

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: [email protected]

• 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

10-11Deformation 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.

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

INTRODUCTION

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.

Stamping is mainly used in sheet plate forming, which can be used not only in metal forming, but also in non-metal forming.

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

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.

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.

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:

INTRODUCTION

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.

cutting process and forming process.

bending， deep drawing, local forming, bulging ， flanging ， necking, sizing and spinning,

INTRODUCTION

In forming processes, such as

the blank should be plastically deformed without fracture and wrinkle, and the part is produced to satisfy the required shape and dimensional accuracy.

INTRODUCTION

Widely used stamping processes

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.exe拉深

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.swf翻边

.swf缩径

Thank you!