Numerical Simulation of Axial Oscillation of Extrusion Container in Different Amplitudes During Precision Forging
Unsuccessful corner filling and excessive deformation at the final stage of process are the main limitation in cold closed-die forging of straight spur gear.The friction force is one major factor which affects metal deformation rules,the material flow may be controlled positively by utilizing the frictional force over the interface of billet and container so that the billet material may easily flow into the corners of the die cavity.A method with an axially driven container was proposed,the finite element method was used to simulate the oscillation of the container in different amplitudes.The curves of loading force along with the change of time are obtaimed.A optimal scheme is found by analyzing the curves.