Casting, forging, billet and extrusions all are different methods of manufacturing parts. Each method has its own benefits. In this article we’ll take a look at what those benefits are and make a comparison.
What is a Closed Die Forging?
A closed die forging, sometimes called an impression die forging or near net shape forging, involves a malleable billet of metal being placed between two die halves. The bottom die half is stationary. The top die comes down to compress the malleable billet. When this happen, the billet is dispersed and the metal moves to fill in both die half cavities.
This process works with the billets internal grain structure to produce stronger and more longer lasting parts than that same part machined from billet material or from a casting.
Closed Die Forging Video
See below for a short demonstration video of the closed die forging process.
Benefits of Closed Die Forging
- Better surface finish and superior mechanical properties
- Less machining due to a closer net shape to the final geometry of the part
- Cost effective for larger production runs
- Dimensions with tighter tolerances can be achieved
- More precise and consistent impressions can be achieved