Drop forging and die forging
Die forging or drop forging is a hot forging process causing plastic deformation of a metal between 2 tools, forcing it to take on the required shape.
Parts obtained using this technique have high resistance to mechanical stresses, as forging causes :
- Cold working, which, by compression and deformation of the material, stops the formation of internal defects, such as bubbles or inclusions, which could adversely affect the internal uniformity of the parts.
- Grain flow of the metal: the internal structure of the metal forms fibres according to the flow of the material and the stresses applied to the part. Our forging expertise enables us to determine the orientation of the grain flow according to the expected stresses on the finished part, which gives it particularly good mechanical properties.
The raw material used already has a longitudinal grain flow before forging (metal bars), which is modified as required during the forging operation.
The challenge of manufacturing parts by forging is particularly related to the type of raw material used. For example, titanium forging or stainless steel forging are complex, because these materials are abrasive and do not flow easily in the tools, which can quickly lead to defects and / or damage of the tools.