TY - GEN
T1 - Numerical simulation of turbine blade repairing by LRF process
AU - Jia, Wenpeng
AU - Tong, Huiping
AU - He, Weiwei
AU - Liu, Haiyan
AU - Huang, Weidong
PY - 2010
Y1 - 2010
N2 - This paper introduces two 3-D transient finite element model of Laser Rapid Forming (LRF) to investigate the process of turbine blade repairing. The first proposed model can predict the geometry of repairing layers as a function of time and process parameters including laser energy, scaning velocity, powder feed rate and material properties using finite element birth and death strategy. The second model can narrate the evolution of temperature/stress field during hollow blade repairing using the Bilinear Isotropic Hardening (BISO) and Von Mises yield criteria. Using these two model together, the LRF repairing process with three repairing layers of a Ti6Al4V hollow blade brim are studied. The distribution of temperature, distortion, and residual stress are revealed, all which provide theoretical and practical base for laser rapid forming and repairing of highly sophisticated turbine blade parts.
AB - This paper introduces two 3-D transient finite element model of Laser Rapid Forming (LRF) to investigate the process of turbine blade repairing. The first proposed model can predict the geometry of repairing layers as a function of time and process parameters including laser energy, scaning velocity, powder feed rate and material properties using finite element birth and death strategy. The second model can narrate the evolution of temperature/stress field during hollow blade repairing using the Bilinear Isotropic Hardening (BISO) and Von Mises yield criteria. Using these two model together, the LRF repairing process with three repairing layers of a Ti6Al4V hollow blade brim are studied. The distribution of temperature, distortion, and residual stress are revealed, all which provide theoretical and practical base for laser rapid forming and repairing of highly sophisticated turbine blade parts.
KW - Laser rapid forming
KW - Temperature/stress field
KW - Turbine blade repairing
UR - http://www.scopus.com/inward/record.url?scp=84902183922&partnerID=8YFLogxK
M3 - 会议稿件
AN - SCOPUS:84902183922
SN - 9781899072194
T3 - Proceedings of the World Powder Metallurgy Congress and Exhibition, World PM 2010
BT - Proceedings of the World Powder Metallurgy Congress and Exhibition, World PM 2010
PB - European Powder Metallurgy Association (EPMA)
T2 - World Powder Metallurgy Congress and Exhibition, World PM 2010
Y2 - 10 October 2010 through 14 October 2010
ER -