The drawing process of pure magnesium thin wire was numerically simulated by controlling the different friction coefficients

drawing speeds and the amount of pass deformations based on the constitutive equations established by the thermal compression.The results reveal that drawing force and strain non-uniformity as well as maximum main stress are increased with the increase of the friction coefficient.With the increase of drawing speed

the change of drawing force can be ignored

while the strain non-uniformity and the maximum main stress are increased gradually.The maximum main stress is increased dramatically when the drawing speed is more than 60 mm/s.With the increase of pass deformation

the fracture tendency value is increased and it is increased sharply at pass deformation exceeding 15%.Therefore

the optimized drawing parameters of pure magnesium thin wire are presented as follows:the friction coefficient of 0.08

the drawing speed less than 60 mm/s and the pass deformation in range of10%

1

5%.