Tungsten wire is processed by pulling the hot wire through a die at a high temperature. However, this technique is associated with several issues, including longitudinal crack formation and wire diameter reduction. Analyzing the plastic deformation behavior of wire, such as strain and stress, when passing through a die is crucial for the production of high-quality wire. In this study, we created a numerical simulation model using finite element method analysis to simulate high-temperature wire drawing, and compared it with the actual wire-drawing process to verify the validity of the simulation. We successfully reproduced the drawing process of tungsten wire via this simulation analysis. We then visualized the changes in the drawing load and strain distribution in the wire by changing the internal shape of the die and processing conditions. Simulations considering various parameters of the actual wire-drawing process must be conducted to further improve the quality of drawn tungsten wires. This study lays a foundational basis for the validity of simulation analysis for actual wire-drawing processes.

3_Analysis_of_tungsten_wire_drawing_process.pdf