© 2011 Su-Jin Kim GNU Sheet-Metal Forming Manufacturing Processes Die( 금형 ) for Sheet metal...

© 2011 Su-Jin Kim GNU© 2011 Su-Jin Kim GNU

Sheet-Metal FormingSheet-Metal FormingManufacturing ProcessesManufacturing Processes

Die( 금형 ) for Sheet metal

• Single operation1. Stamping Die2. Press Machine

• Die is used for multiple station operation of shearing, bending and drawing.

1. Progressive Die2. Transfer Die

http://www.youtube.com/watch?v=q5Wlr6Co5SI&hl=ko



Stamping Die ( 프레스 금형 )

• Automotive panel forming process: Drawing → Trimming → Hemming → Punching

• Draw die = upper die + lower die + blank holder

Lower die

Blank holder

Upper die

Draw diehttp://www.youtube.com/watch?v=ydoEJnwMlnk Press



Press Machine ( 프레스 )

Crank press Hydraulic press



Progressive Die ( 순차이송 금형 )

• Multiple operation such as punching, bending, blanking.

http://www.youtube.com/watch?v=BDIYBloDydM&hl=ko



Part analysis (Unfolding) Strip layout

Punch Die set

Progressive Die Design



Transfer Die ( 트렌스퍼 금형 )

• The large sheet metal part is transferred to next station after an operation by transfer machine.

http://www.youtube.com/watch?v=MTPQfEwxtf8&hl=ko



Design Considerations ( 설계 )

• Guidelines for design issues of sheet-metal forming operations:

1. Punching2. Bending 3. Progressive-die operations4. Deep drawing



FEM

diede.es



Economics ( 경제성 )

• Cup-shaped part can be produced by deep drawing, spinning.

• Automotive or aircraft panel can be produced by drawing, stretch forming.

500 1,000 2,000 3,000 4,0001

Number of parts

Co

st p

er

pa

rt

Drawing

Spinning



References

• 삼도프레스 : www.samdopress.co.kr 장비• AMADA: www.amada.co.kr 장비• IDETEC: www.dietec.co.kr 프래스금형

© 2011 Su-Jin Kim GNU Sheet-Metal Forming Manufacturing Processes Die( 금형 ) for Sheet metal...

Documents

Transcript of © 2011 Su-Jin Kim GNU Sheet-Metal Forming Manufacturing Processes Die( 금형 ) for Sheet metal...