These three diagrams show 1. The thin sheet metal (yellow) placed between the punch and the die. 2. The hydraulic ram lowering the punch and pressing the metal into the die. 3. The punch being raised and the stripper ring pushing the formed part off the die. Note there maybe excess metal that's needs to be trimmed after forming.

These three diagrams show 1. The thin sheet metal (yellow) placed between the punch and the die. 2. The hydraulic ram lowering the punch and pressing the metal into the die. 3. The punch being raised and the stripper ring pushing the formed part off the die. Note there maybe excess metal that's needs to be trimmed after forming.

All of the metal parts for this barbecue have been press formed.

All of the metal parts for this barbecue have been press formed.

Pressed car body panels that are pressed between huge moulds.

Obama, stung by Romney, hits China on trade

Pressed car body panels that are pressed between huge moulds.

Die press for the manufacture of a metal bumper for a Toyota Camry. The picture shows the female half of the die/mould raised away from the male. The metal part is still on the lower mould/die and you can seen the excess that needs trimmed away after pressing.

Sheet metal engineering on demand.

Some phones have very precisely made pressed covers and fascia.

Some phones have very precisely made pressed covers and fascia.

Leitz 5008 Punch 2-Hole Medium-duty with a pressed metal lever and base.

Leitz 5008 Punch Medium-duty with a pressed metal lever and base.

The seats on this bench have been formed (and punched). The side bars are extrusions which have been rolled in curves.

The seats on this bench have been formed (and punched). The side bars are extrusions which have been rolled in curves.

Foix' Round Tray. The mould makers must have been very skilled to get the two moulds precisely made to form the crumpled edge.

The mould makers must have been very skilled to get the two moulds precisely made to form the crumpled edge.

Car number plates.

Car number plates.

Casings for computers are often press formed. you can see in this photo press recesses for mounting other parts and depressions to take the heads of screws or bolts. this is also a nice example for showing how metal punching and pressing often happen at the same time.

Casings for computers are often press formed. you can see in this photo press recesses for mounting other parts and depressions to take the heads of screws or bolts. this is also a nice example for showing how metal punching and pressing often happen at the same time.


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