A Novel Method for Prediction of the Particle Flow PathIn the Extrusion Process Using the Electrostatics Concept

Few works have been reported for particle flow pathprediction in the metal forming processes. However, theproposed methods were not simple and straightforward.In this research, the idea of “electrostatics” is used forparticle flow path estimation in the extrusion process forthe first time. It is shown that the constitutive equationsin the classical plasticity theorem and the electrostaticfield are in the form of Laplace’s relations. In addition,the velocity field in the plasticity is analogues to theelectric potential in the electrostatics. To verify theproposed method, the extrusion process of a round billetto a square section was used as benchmark. The ۳Dstreamlines as the representative of the particle flowpaths from the electrostatics were drawn and comparedwith the finite element simulations and literature. Therewas reasonable similarity between the two methods in theparticle flow prediction. Hence, it can be concluded thatthe electrostatics concept can be used effectively inparticle flow path estimation in the extrusion process.

کلیدواژه ها:

Extrusion ، Electrostatics ، Plasticity ، Finiteelement