Coining allows the creation of various shapes on a sheet of metal using a punch, die, and press that gradually deform the metal according to project specifications. This process is suitable for multiple applications, particularly in the bodywork, automotive, and agricultural sectors.
The coining process involves using a punch and dies with the same angle of inclination, which helps eliminate springback (the tendency of the material to partially return to its original shape).The shapes that can be obtained include:
Materials suitable for coining must be malleable. Common materials include stainless steel, aluminium, brass, iron, phosphor bronze, and titanium. Other materials, like cast iron, can be more challenging to coin.
Stainless steel can be coined due to its moderate malleability and corrosion resistance
MP performs coining operations on aluminium, a malleable, lightweight, and easily deformable material.
MP also processes iron, which is suitable for deformation due to its malleability and strength.
MP uses customer-provided dies and offers, with partner companies, a custom mould design and development service suitable for metal coining. Mould design requires particular attention to the piece geometry, the type of material to be processed, and the pressure applied. The die must also ensure precision and repeatability of the forming process while minimising defects and potential surface errors. MP, supported by a strong network of partners, optimises the die geometry and characteristics to ensure efficient and high-quality production.
