Figure 5
From: Superplastic Forging for Sialon-based Nanocomposite at Ultralow Temperature in the Electric Field
A photograph of a gear with 3.8 mm height forged using nano-structured sialon-based ceramic in a graphite die at 1200 °C under the action of an electric field is shown to the left. The shape of the deformed part is complex, the shape of the gear is sharp, and the surface finish is excellent. It is formed in 2 s with an axial pressure of 20 MPa. The billet (shown at right) is cylindrical (diameter 20 mm, height 10 mm).
