Cold Forging

Setforge is a recognized specialist in the cold forging of transmission shafts for all sectors. Discover this unique process!

A PRECISION PROCESS

Cold forging consists in deforming a metallic material at room temperature, without heating the material, only by applying a very high pressure. The billet is placed in a die and then compressed by the action of a mechanical press until it adjusts to the desired shape. Depending on the geometric complexity of the component, several operations may be necessary to gradually deform the metal without risking tearing the fibers.

Particularly suitable for elongated components such as shafts, this process is highly competitive and allows exceptional mechanical characteristics to be obtained.

Setforge is one of the European specialists in this process. We are able to produce parts of almost 30Kg for a length of 800mm. A unique capacity on the market!

Production of transmission shafts at Setforge Extrusion.

PRODUCTION STEPS

The cold forging process differs slightly depending on its production rate or the size of the components produced. Setforge Extrusion and Setforge Near Net are two specialists in this process.

1-Cutting of the bar stocks

Not all steel grades are suitable for cold forging. The carbon content must be less than 0.5% and the strain hardening rate must be acceptable.

The bars first undergo an isothermal annealing heat treatment.

2-Lubrication

A lubricant is applied to the bar to prevent it from sticking to the die and to make it slide more easily. Frictional forces are extremely important.

The part can reach a temperature of almost 250 ° C during the process!

3-Forging Operations

The piece is placed successively in several dies in order to gradually reach the desired shape.

The pushing force is applied by hydraulic or mechanical presses, with vertical or horizontal push.

4-Delivery

The parts resulting from cold forging do not require additional heat treatment and are placed directly in transport crates.

They are sent directly for machining, performed either by our customers or by us.