A set of tooling is necessary to produce a forging; it consists of dies, trimming and punching tools, and in some cases bending or coining tooling.It is designed and produced in our own tooling shop.
In this newsletter we want to focus on the dies : The dies (upper and lower) are the heart of forging, giving the shape to the part, thanks to a cavity or multiple cavities, with preforming and final forming areas.
We forge with forging hammers, not presses : this choice has been successful since the parts can be produced at a low cost; the die below has 4 cavities so 4 parts are forged together.
How we proceed :
2 different treatments will be applied in order to improve the lifetime of the dies :
Nitride hardening : the nitride brought by this heat treatment hardens the surface of the cavities up to 1000 HV.
Hard chrome plating : a 0.05 mm thickness chromium layer is deposited in order to reduce abrasion and to help the metal glide into the cavities.
Quality tooling produce quality forgings : therefore its maintenance is strategic. A specific care must be taken from the manufacture to the storage : after the production of each batch of forgings the tooling is systematically expertized.
In case the tooling must be repaired or completely remanufactured, we decide it and plan it right after the expertise. There is absolutely no impact on cost, lead time or technical matter for our customer : this is our internal way of working.
And for strategic products we always have a brand new tooling in stock !
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