In the extrusion process for tractor speed reduction gear with large module

there are some technology difficulty problems

such as large deformation resistance

filling toothed cavity difficultly and low die life.A method of setting the dividing flow cavity in toothed cavity of die is put forward

and combining with floating die technology

a new extrusion technology is worked out.The experimentation results show: by the technology

filling performance is improved

a 50% reduction in extrusion force is realized

and the die life is increased.