Abstract
The high-temperature deformation behavior of Q345 steel is detected by a Gleeble-3800 thermal simulator. The Arrhenius constitutive equation for high-temperature flow stress and the dynamic recrystallization model are constructed. With the secondary development technology, customized modifications are made on existing Deform-3D software. The constructed constitutive model and dynamic recrystallization model are embedded into Deform-3D to realize the secondary development of Deform-3D. The grain size and volume percentage distribution of dynamic recrystallization are obtained by simulating the shear connection process at high temperature and high speed. The results show that the constitutive equation and the dynamic recrystallization model constructed in this paper can be used to predict the evolution of the microstructure. The difference between the prediction results and the experimental data is about 3%. The accuracy of Arrhenius constitutive equation, dynamic recrystallization model and the feasibility of software secondary development are verified.
Highlights
As an important technical method for material connection, the solid metal connection technology of metal sheets becomes a necessary step for materials to be converted into usable parts and structures, which can realize the direct connection of metal sheets [1]
A new solid-state connection technology based on the plastic deformation connection process, which was applied to the endless rolling intermediate blank shear connection process, was developed by Posco (Pohang) and Hitachi (Hitachi) Co
The optimization parameters of this mechanism are obtained; the kinematics genetic algorithm (GA) and the optimization parameters of this mechanism are obtained; the analysis show that the connection time is lesstime thanis0.1 s and thickness isthickness more than kinematics analysis show that the connection less thanthe
Summary
As an important technical method for material connection, the solid metal connection technology of metal sheets becomes a necessary step for materials to be converted into usable parts and structures, which can realize the direct connection of metal sheets [1]. Dynamic recrystallized grain size and volume percentage affect during shear connection. Dynamic recrystallized grain size and volume percentage affect the the mechanical properties of the connection and its parts. It is necessary to obtain the grain size and volume percentage of dynamic recrystallization by establishing the constitutive and recrystallization equation of Q345 and the recrystallization by establishing the constitutive and recrystallization equation of Q345 and the secondary development of Deform-3D. This is of great significance to the optimization of process secondary development of Deform-3D.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
