TY - JOUR
T1 - Application of electro-magnetic heat effect on arresting the crack in remanufacturing blank
AU - Zhang, Hongchao
AU - Yu, Jing
AU - Hao, Shengzhi
AU - Peng, Yanfang
PY - 2013/4/5
Y1 - 2013/4/5
N2 - Remanufacturing is the only way of sustainable development of equipment manufacturing industry. For the rough materials containing cracks, the primary task is the prevention of crack propagating, to ensure the effectiveness of the remanufacturing processes followed. When the pulse current passing through the specimen, due to the existence of crack, the temperature located around crack tips rises sharply even over the melting point of materials and the shape of crack tips would be blunted. Using the method of complex variables functions, the models of current density, temperature and residual stress are derived around crack tips. With compressor rotor material FV520B as example, the distributions of current density, temperature field and residual stress are calculated for the instant of energizing. The crack arrest experiment is performed on the device of high current pulsed discharging of type HCPD-I. The morphological details of crack tip are compared between the initial and HCP treated samples. The consistency of experimental and simulation result is very well. The method of high current pulse discharging can prevent crack further expansion effectively and show substantial potentials for remanufacturing process.
AB - Remanufacturing is the only way of sustainable development of equipment manufacturing industry. For the rough materials containing cracks, the primary task is the prevention of crack propagating, to ensure the effectiveness of the remanufacturing processes followed. When the pulse current passing through the specimen, due to the existence of crack, the temperature located around crack tips rises sharply even over the melting point of materials and the shape of crack tips would be blunted. Using the method of complex variables functions, the models of current density, temperature and residual stress are derived around crack tips. With compressor rotor material FV520B as example, the distributions of current density, temperature field and residual stress are calculated for the instant of energizing. The crack arrest experiment is performed on the device of high current pulsed discharging of type HCPD-I. The morphological details of crack tip are compared between the initial and HCP treated samples. The consistency of experimental and simulation result is very well. The method of high current pulse discharging can prevent crack further expansion effectively and show substantial potentials for remanufacturing process.
KW - Arresting crack
KW - High current pulse
KW - Numerical simulation
KW - Remanufacturing
UR - http://www.scopus.com/inward/record.url?scp=84877882893&partnerID=8YFLogxK
U2 - 10.3901/JME.2013.07.021
DO - 10.3901/JME.2013.07.021
M3 - Article
AN - SCOPUS:84877882893
VL - 49
SP - 21
EP - 28
JO - Jixie Gongcheng Xuebao/Journal of Mechanical Engineering
JF - Jixie Gongcheng Xuebao/Journal of Mechanical Engineering
SN - 0577-6686
IS - 7
ER -