Forming Quality of Heat Spinning for the Ni-Cr-W-Mo Superalloy Workpiece with Strange Shape
AN Zhen1, LI Jinshan1, HU Rui1, TANG Bin1, WANG Jian2, YAO Caogen2
1. State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an 710072, China;2. Aerospace Research Institute of Materials & Processing Technology, Beijing 100076, China
Abstract：Based on the Explicit/Standard modules of software ABAQUS, a 3D finite element model of Ni-Cr-W-Mo superalloy workpiece with strange shape multi-pass is built. The distribution and variation features of stress-strain, hot spinning regular pattern, and common defects are investigated in the forming process for the Ni-Cr-W-Mo superalloy workpiece with strange shape. The results show that by taking some factors, such as the defects forming, minimizing forming pass, etc into account, the spinning gap should be bigger than 3.7mm. The gap between blank and mandrel is quite small at the region near the central axis, however, the gap near the oral part of workpiece increases enormously.