TY - JOUR
T1 - Preform design and finite element simulation of new-type P/M superalloy disk based on equipotential field
AU - Wang, Xiaona
AU - Li, Fuguo
AU - Xiao, Jun
AU - Li, Miaoquan
PY - 2009/5
Y1 - 2009/5
N2 - In order to improve the product quality and work efficiency and reduce the cost, rational preform design must be carried out for the preformed blank. On the basis of the minimum energy principle and the least resistance principle, and by utilizing the analogy between the flow law of blank in the plastic process and the isopotential line distribution in the electrostatic field, a new method for preform design, i.e. equi-potential field method, is proposed and adopted for the perform design of p/m superalloy discs. Six groups of preformed shapes are selected by using ANSYS software simulation. At the same time, the isothermal forging of the P/M superalloy disc is simulated by using software MSC/Superform with the obtained die shapes in order to obtain the equivalent strain distribution in the final shapes and the deformation degree at pre-forming and finish forging. Through comparing the equivalent strain, the deformation degree and other field variables, a rational preforging is recommended.
AB - In order to improve the product quality and work efficiency and reduce the cost, rational preform design must be carried out for the preformed blank. On the basis of the minimum energy principle and the least resistance principle, and by utilizing the analogy between the flow law of blank in the plastic process and the isopotential line distribution in the electrostatic field, a new method for preform design, i.e. equi-potential field method, is proposed and adopted for the perform design of p/m superalloy discs. Six groups of preformed shapes are selected by using ANSYS software simulation. At the same time, the isothermal forging of the P/M superalloy disc is simulated by using software MSC/Superform with the obtained die shapes in order to obtain the equivalent strain distribution in the final shapes and the deformation degree at pre-forming and finish forging. Through comparing the equivalent strain, the deformation degree and other field variables, a rational preforging is recommended.
KW - Equi-potential field
KW - Finite element simulation
KW - P/M superalloy
KW - Preforming desal
UR - http://www.scopus.com/inward/record.url?scp=67649159272&partnerID=8YFLogxK
U2 - 10.3901/JME.2009.05.237
DO - 10.3901/JME.2009.05.237
M3 - 文章
AN - SCOPUS:67649159272
SN - 0577-6686
VL - 45
SP - 237
EP - 243
JO - Jixie Gongcheng Xuebao/Journal of Mechanical Engineering
JF - Jixie Gongcheng Xuebao/Journal of Mechanical Engineering
IS - 5
ER -