Technology Comparison

Those three techniques are complementary and better meet the needs of our customers. Indeed, the high pressure die casting allows, after liquefying the metal, to inject it under high pressure in a steel mold and so obtaining pieces that can be worked with thin thickness. By this method the machining and finishing operations of the parts are often limited.
Similarly, in gravity die casting The liquid metal is cast by gravity into the mold. This means that the parts can not be so worked than in high pressure die casting and must have larger overall thicknesses. Some alloy not being able to be high pressure die casted, the gravity foundry has all its interest.
On the other hand the hot forging Consists in heating the material to make it "soft" while remaining in the solid state and deforming it by a sudden impact in a steel tooling. The part is thus formed with a burr.
This burr is an overweight of peripheral material which will then be eliminated by a die cutting. This technique, due to the fact that the metal is not melted, does not destroy the original spinning of the spun material and thus produces pieces of high resistance, without premeability.

In a few cases, it's possible to associate those two techniques to, for exemple, couler des ébauches de forme très approchante et de matricer (frapper) ces ébauches pour les écrouir et ainsi augmenter les caractéristiques mécaniques de la pièce finale. (?)