Preform design of a generic turbine disk forging process

摘要: Abstract This work uses the finite-element-based inverse die contact tracking method to design preform shapes of a generic turbine-disk forging process. First, for one-stage process, folding defects, extensive flash and underfill resulting from using an improper initial billet size are investigated. Trial forward simulations performed while varying height-to-diameter ratio optimal aspect process is determined. Second, two-stage designed back-stage The boundary condition control criterion backward simulation determined by method. In addition, also preforming stage achieve sound shape. Finally, results, including final stage, verified simulation. show that sequence newly can net-shape part avoids defects reduces wear.