Manufacturing method

Hydroforming is a fluid based manufacturing method. A tube is insert into a tooling cavity, filled with a fluid and is expanded with very high pressure into the tool.

Tube is inserted into the tool

1. Tube is inserted into the tool

Closing the tool

2. Closing the tool

Approaching of the sealing cylinders & filling of forming medium

3. Approaching of the sealing cylinders & filling of forming medium

Generation of internal pressure feeding of sealing cylinders

4. Generation of internal pressure feeding of sealing cylinders

Opening the tool & removing the part

5. Opening the tool & removing the part

The semi-finished product, mostly a straight or bent tube section, is inserted into a forming tool. The upper and lower die of the tool are then closed, the tube is filled with water and is sealed with the aid of axial cylinders.

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By applying internal pressures of up to 4,000 bar, the tubes are precisely formed against the die geometry with absolute repetitive accuracy. The simultaneous feeding of the axial sealing cylinders supports the material flow and allows for the highest degrees of forming.

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By using stress appropriate design and work hardening effects, a significant weight reduction can be achieved for the components.

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Furthermore, the number of components and process steps can be reduced due to the complex shapes that are producible.


Small and Large-Scale Production

Automation

Depending on the annual volume the manufacturing process can be adjusted individually to obtain the cost optimum

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Prototypes and small series are produced manually
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Tailor-made automation of single processes complements the manual production in the event of medium-sized series
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Large series are manufactured on fully-automated production lines

Employees of Salzgitter in the production department

Your parts in expert hands: hydroforming, bending, laser cutting, heat treatment

Product Division automtisierte machines

Automated production for large series