Die forming process

2/16/2011

frame #3

frame #1

1. using the frame #3

① 95D/ 4000psi -> breaks the piece

2. using #3

① 80D/ 1500 psi -> 1/8 ~ 1/4 inch

② 80D/ over 2000 psi -> breaks the piece

3. using #3 (the only piece I got ok from these five pieces, 2/16/2011)

① 80D/ 1200 psi

② 80D/ 1500 psi

③ 90D/ 1800 psi (little below 1/2 inch)

4. using the frame #1

① 80D/ 1200 psi -> higher than the result w/ frame #3

②80D/ 1500 psi

③80D/ over 2000 psi -> breaks the piece

5. using #1

① 80D/ 1200 psi

②80D/ 1800 psi .................broke this one ...

I used 24g copper, and they are too thin to be formed with over 2000psi pressure.

I might try 20 - 22g copper as well.

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2/18/2011

Pieces #2, #3, and #4 are used 22g copper, and as I thought they stood the pressure over 2000 psi, bur has be under 2100.

For the best result I would use 80D urethane pressured 2000 psi with frame #1.
With Frame #2, I would use 95D and 80D pressured 3000 psi.

When I use 24g copper (thinner than 22g), with frame #2,

I would use 80D/ 1600, and the second try will be 80D/ 2500 psi.


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2/19/2011


The new frame #4 !

24g copper

①80D/ 1500

②80D/ 2200 or 2500

24g copper

I should press under 2500 psi, and can get a nice shape :)