2nd International Workshop on Materials Science and Mechanical Engineering | |
Effects of process parameters on vacuum hot bulge forming process on reactor coolant pump rotor-can with ring-shaped outward defect | |
机械制造;材料科学 | |
Cui, Y.^1 ; Zhang, L.W.^1 ; Zhang, C.^1 ; Li, F.^1 | |
School of Material Science and Engineering, Dalian University of Technology, Dalian | |
116024, China^1 | |
关键词: Displacement field; Holding temperatures; Potential techniques; Process parameters; Processing technologies; Reactor coolant pump rotors; Reactor coolant pumps; Vacuum hot bulge forming; | |
Others : https://iopscience.iop.org/article/10.1088/1757-899X/504/1/012106/pdf DOI : 10.1088/1757-899X/504/1/012106 |
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学科分类:材料科学(综合) | |
来源: IOP | |
【 摘 要 】
Rotor-can is one of the key components of the canned reactor coolant pump to protect the rotor from corrosion damage in nuclear industry. It demands high dimension precision, posing great challenges to the processing technology. Vacuum hot bulge forming process is a potential technique to control the manufacture precision. In this paper, a 2-D nonlinear thermal-mechanical coupled finite element model (FE model) was established to simulate vacuum hot bulge forming process of rotor-can with ring-shaped outward defect. The displacement field of rotor-can and the height of ring-shaped outward defect after vacuum hot bulge forming process were calculated. The effects of process parameters, including holding time, holding temperature and bulging clearance, on vacuum hot bulge forming process of rotor-can with ring-shaped outward defect were analyzed. Results showed that to ensure the radius of the rotor-can canmeet the requirement, when bulging clearance is fixed, holding temperature should also be fixed. The residual height of ring-shaped outward defect is decreasing with the decreasing of bulging clearance and increasing of holding temperature.
【 预 览 】
Files | Size | Format | View |
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Effects of process parameters on vacuum hot bulge forming process on reactor coolant pump rotor-can with ring-shaped outward defect | 816KB | download |