Forging Process


Forgings that meets rigorous demands
Smepro works in close collaboration with a number of forges all over the world that produce forgings in accordance with DIN, ASTM and ASME standards or according to client specifications. The craftsmanship of the age-old craft of forging is combined with the use of advanced equipment, efficient production processes and modern production plants. Whether the production of the forgings takes place in the Netherlands, elsewhere in Europe or in Asia, you can be sure that Smepro will always guarantee its quality.

From billet to wrought ironwork
Billets are the basic ingredient of all good forgings. They are cast according to the usual material standards, but other, less common specifications are also possible in the case of large quantities of forgings. The billets are sawn into smaller pieces and heated in computerised ovens to the required temperature, usually 900 to 1150 degrees Celsius. Constant monitoring throughout the process guarantees the quality of the forgings: from receipt of the billets to delivery of the finished product to the client, just-in-time (JIT) if required. This guarantees the production of forgings with minimum machining allowance and optimal structure.

Heat treatment for optimal quality
After the forging work, the metal is heat-treated in computerised ovens. This is done by standardising or refining the mechanical properties to those for steel. Other properties can also be achieved if you so wish and providing the material is suitable. The mechanical properties of the forgings are generally fixed at the time of ordering. The result is high-quality forgings with optimal properties, a homogeneous structure and the correct grainflow.

Forgings just the way you want it
After heat treatment, the forge carries out a random check of the metal pieces for hardness. This indicates whether or not the heat treatment has been carried out correctly and if it needs to be repeated. Sample pieces are then taken from the forgings. These are tested for their mechanical properties in the laboratory. The forging is then further tested to check that it matches with client specifications. This involves ultrasonic or radiological testing, extra hardness checks and, if required, rough-turning in order to check for cracking. The forgings can be produced entirely according to your own specifications if you so wish.