| 摘要 |
Adie for casting, hot forging or superplastic forming metal has a forming surface 1 and an opposing rear surface 2. The rear surface 2 has a plurality of cavities 3 separated by a plurality of walls 4, each of the walls 4 having a substantially equal width. At least one transverse wall 6 may also be provided such that the walls define a grid spacing a series of rectangular or triangular cavities. All the walls and the thickness of the die between the forming surface and the base of each cavity can be equal. Alternatively at least one cavity comprises a projection 9 & 9 located centrally on its base, the projections assisting in locating the die in a furnace while it is being used to form a metal object. |
