Constitutive Relationship of TA15 Alloy and its Application in the Hammer Forging Process Simulation
A Kumar-type constitutive relationship of TA15 alloy was investigated by non-linear regression analysis, and the equations were established based on test data from hot process simulator. Applying this constitutive equation in commercial FEM software of SFTC/Deform, the hammer forging process of TA15 alloy beam was simulated, meanwhile the final shape of forging piece, the hammering times, the height reduction variation and the maximal effective stress variation along with forging time were predicted. The hammer forging test was carried out and the test results showed that the simulation based on Kumar-type constitutive relationship meet the practical need to a great extent.
Guozhong Chai, Congda Lu and Donghui Wen
G. Z. Quan et al., "Constitutive Relationship of TA15 Alloy and its Application in the Hammer Forging Process Simulation", Advanced Materials Research, Vols. 102-104, pp. 516-520, 2010