Metal Forming Technology in Automotive Industry By

Assoc.Prof.Dilok Sriprapai

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20-21June 2013

BITEC, Bangkok -Thailand

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The prediction of total of amount of global motor vehicle in the world, 1950-2030

Description of

the contents

Trend of vehicle efficiency and fuel economy

Description of

the contents

Weight distributions of materials in a motor vehicle (Design for recycling)

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Sustainable design and forming technology

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Vehicle components and systems

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System approach to metal forming

Sheet Metal Forming Bulk Metal Forming

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Comparison of hot, warm and cold forging

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Major forming result factors

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Sheet metal forming in Thailand and world steel development

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Strain path related forming process

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FLD related forming process

Forming result factors

1 Sheet thickness

2 σ, yield, % ε

3 r and n

4 Plastic anisotropy

5 Coating

6 Roughness

etc.

1 Drawing

2 Stretching

3 Forming

4 Bending

5 Hemming

etc.

1 Crack

2 Necking

3 Springback

4 Wrinkle

5 Shape accuracy

6 Adhesion galling

etc.

1. Teamwork experiences

2.Die processing accuracy

3. Die design & simulation

4. PDCA strategy

Material Properties Forming Process Evaluation Design &Tryout

Principle of virtual die making

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Die design & simulation procedure best practice

Bumper tryout dynamic process

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C2_BE2 Use setting dumping

0.00-0.25 mm: 53.37 [%] 0.25-0.50 mm: 26.30 [%] 0.50-0.75 mm: 15.40 [%] 0.75-1.00 mm: 2.11 [%] 1.00mm- : 2.84 [%]

Automatic

Not Good

JSC980Y springback compensation

Description of

the contents

Technology of Hot forming of steel sheet

Simulation step for hot forming of steel sheet

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Front bumper JSC980Y experimentation

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Key successful of virtual tryout

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Cold forging components

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Bulk metal forming die failure

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Cold forging of aluminum connector

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Benefits of virtual tryout best practice

Thank You

Thank You 27