| 摘要 |
<p>PURPOSE:To forge a part large and complicated in shape at a high temperature in the atmosphere by coating a billet with metallic material and forming a forging die of an oxidation-resistant, high temperature and high strength martial. CONSTITUTION:When a Ni base super heat-resistant alloy billet higher than 1000 deg.C in superlasticity generating temperature is hot-forged in the region of superplasticity generating temperature, the billet is coated with metallic material having a melting point higher than the forging temperature and the forging die is formed by oxidation-resistant, high temperature and high strength material, the coated billet is heated to the superplasticity generating temperature and hot-forged by the forging die heated at a high temperature in the atmosphere. Thus, a part large and complicated in shape can be hot-forged in the atmosphere.</p> |
