Section 1 Basic concepts of plasticity and plastic forming

First, plasticity and its influencing factors

Second, plastic forming and its characteristics

Third, the physical basis of plastic deformation

Fourth, the mechanical basis of plastic deformation

Section II Stress and Deformation Characteristics of Stamping Forming

I. Stress and strain in stamping forming

Second, the stamping area.

Section 3 Stamping Formability of Metal Sheet

A, the classification of sheet metal formability

Second, the index and experiment of sheet metal formability

Third, the forming limit diagram

Section 4 Solutions to Sheet Metal Forming Problems

1. Principal stress method and its application in sheet metal forming analysis.

Second, the finite element simulation technology of stamping forming

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Chapter II Punching Technology and Die

The first section blanking process design

First, the blanking deformation process and section analysis

Second, the manufacturability of blanking parts

Third, the calculation of blanking force and the method of reducing blanking force

Fourth, the blanking die clearance

Verb (abbreviation of verb) Determination of cutting edge size of blanking die

Section 2 Design of Stamping Die

A, the classification of blanking die

Second, the typical structure of blanking die

Third, the closing height of the mold and the loading height of the press.

Fourth, the pressure center of the mold.

5. Structural design of typical parts of blanking die

Section 3 Precision Punching Technology and Die

I. Overview of Precision Blanking

Second, the fine blanking process

Third, fine blanking die

Fourth, fine blanking equipment

Five, economical fine blanking technology

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Chapter III Bending Deformation and Bending Die

The characteristics of the first section bending deformation process

First, the neutral layer moves inward.

Secondly, the thinning and growth of the metal plate in the deformation zone.

3. Distortion, warping and fracture of metal plate profiles in the deformation zone.

Minimum bending radius in the second quarter

First, the concept of minimum bending radius and its influencing factors

Second, the value of the minimum bending radius

The third quarter bending rebound

First, the factors affecting the bending rebound

Second, measures to reduce bending rebound

Section 4 Calculation of Blank Length of Bending Parts

First, the bending angle is 90. Bending piece

Second, the fillet radius r > 0.5t bending parts

3. Curved parts with fillet radius r < 0.5t

Fourth, the hinge bends.

Section 5 Calculation of Bending Force

First, the free bending force

Second, the correction of bending force

Section 6 Design of Bending Die

First, the determination of the size of working parts.

Second, the main structure of bending die

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Chapter IV Drawing Technology and Drawing Die Design

Section 1 Tensile Process and Mechanical Analysis

1. Deep drawing deformation process and deformation analysis

Second, the stress and strain state of deep drawing deformation

Thirdly, wrinkling and cracking of deep-drawn parts.

Fourthly, the mechanical analysis of deep drawing of cylindrical parts.

Empirical formula for calculating drawing force of verb (abbreviation of verb)

Design of Drawing Blank for the Second Section of Cylindrical Parts

First, the calculation principle and method of blank

Second, the determination of trimming allowance

Three, the calculation formula of blank diameter

Section 3 Deep Drawing of Flankless Cylindrical Parts

I. Tensile coefficient and ultimate stretching times

Second, the factors affecting the limit drawing coefficient

Thirdly, the determination of stretching coefficient and stretching times.

Four, the deformation characteristics of the first and subsequent stretching.

Section 4 Deep Drawing of Cylindrical Parts with Flanges

First, the deformation characteristics

Secondly, the determination of drawing limit and drawing times of flanged cylindrical parts.

Section 5 Deep Drawing of Parts with Other Shapes

I. Deep drawing of stepped parts

Second, the drawing of conical and spherical parts

Thirdly, the drawing of box-shaped parts.

Example of process design of the sixth control chart

Section 7 Design Points of Drawing Die

1. Determination of working part parameters of drawing die

Second, the determination of the size of the working part of the punch and die

3. Working die structure without blank holder ring

4. Working die structure with blank holder ring

Section 8 Drawing Force, Blank Holder Force and Drawing Work

I. Tension

Second, the blank holder force

Third, drawing work.

Fourth, the principle of choosing a publishing house

Section 9 Structure examples of various typical drawing dies

Section 10 thinning and stretching

I. Overview

Second, detailed drawing process calculation

Third, the design points of thinning drawing die

Lubrication and Annealing in Section 1 1

First, lubrication.

Second, annealing.

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Chapter V Local Forming

First part expansion

First, wave forming

Second, the tubular protrusion

Second flanging

First, inner hole flanging

Second, the outer edge flanging

Third, the special flanging die structure

Section III Necking and Flaring

First, the degree of necking deformation

Second, burning.

Section 4 Forming and Stamping

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Chapter VI Other Forming Processes

First of all, spinning

Second, explosive molding.

Thirdly, electromagnetic forming.

Fourthly, dieless multi-point forming.

5. NC incremental forming of sheet metal.

Six, hydroforming of metal plate

Seven, superplastic forming

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Chapter VII Forming Technology of Automobile Panel

Section 1 Overview

First, the definition of automobile panels

Second, the characteristics of panel forming

Three. Requirements for covering parts

Four. Classification of stamping dies for panels

Section 2 Design of Drawing Die for Panel

I. Stamping direction of deep drawing parts

Second, the design of supplementary part of the process

Third, the determination of pressure surface

Iv. process holes and process cuts

Verb (short for verb) direction

The intransitive verbs drawbead and drawbeam

Seven, blank positioning

Eight, exhaust hole

Nine, in situ marking

Section 3 Design of Trimming Die for Panel Parts

A, the classification of trimming die

Second, we should consider the design of trimming die.

Third, the structural form of trimming

Fourth, waste tools.

Five, typical parts process examples

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Chapter VIII Stamping Process Design

Section 1 Contents and Steps of Process Design

A, stamping process design program

Second, the determination of stamping process scheme

Example of Process Design for Typical Stamping Parts in the Second Section

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Chapter 9 Multi-station Progressive Die

Section 1 Overview

Section 2 Layout Design

First, the layout design principles

Second, the determination and sequencing of working procedures.

Third, the carrier design

Fourthly, cut off the connection mode of the surplus materials in sections.

Verb (abbreviation of verb) step and positioning mode

Six, the arrangement of the side and guide pin hole position

Section 3 Design and Process Calculation of Continuous Drawing Layout of Multi-station Progressive Die

I. Tensile coefficient and relative tensile height

Second, the material width and step distance

3. Calculation of strip continuous drawing process.

Section 4 Structural Design of Multi-station Progressive Die

Section 5 Parts Design of Multi-station Progressive Die

First, punch holes.

Second, the death of women.

Third, the unloading device.

Fourth, the material guide device

Verb (abbreviation of verb) positioning device

Six, fine tuning device

Seven, upsetting device

Eight, prevent the workpiece and waste from rising.

Nine, ejection device

X. automatic monitoring and protection device

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Chapter X Common Problems and Countermeasures in Stamping Production

Section 1 Common Problems and Solutions in Blanking Processing

First, blanking burr and its elimination method

Second, measures to prevent the rough end face of blanking parts

Three, blanking parts deflection and preventive measures

Fourth, the problems that should be paid attention to when drilling small holes

Verb (abbreviation of verb) method of obtaining precise outline parts

Sixth, the problem of punching holes.

Seven, the punching punch falls off and breaks.

Eight, measures to prevent waste from rising and blocking.

Nine, how to punch holes near the edge

Common problems and solutions in bending forming in the second quarter

First, the method of reducing bending rebound

Second, the method of controlling the accuracy of bending parts

Three, bending hole position accuracy and control

Fourthly, the control of deflection and torsion after bending

Five, the problem of uneven end bending

Six, bending parts at the bottom of the bulge and preventive measures

Seven, curved surface scratch problem

Eight, bending die wear problem

Common problems and solutions in deep drawing in the third quarter

First, the causes of tensile cracks and preventive measures

Second, the method to prevent wrinkling in deep drawing.

Three, the tensile wrinkles of spherical parts and its preventive measures

Fourthly, the side wall springback of box-shaped parts during drawing.

The side wall of the box-shaped part of the verb (verb's abbreviation) is sunken.

Six, the drawings at the bottom of the parts bulge or collapse.

Seven, the wear of the drawing die.

Eight. Friction and high temperature bonding in deep drawing process

Nine, shallow box-shaped parts stretching problem

Deep drawing of stainless steel

Section 4 Common Problems and Preventive Measures of Local Forming

First, the causes of cracks during bulging and its preventive measures

Second, the causes and preventive measures of edge crack during flanging

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