The working environment of transmission shaft is very harsh

therefore

the performance of the drive shaft directly affects the performance of the whole vehicle.Traditional drive shaft manufacturing method such as turning machining method

not only wastes materials

but also destroys the metal flow line

which easily leads to stress concentration to influence its service life.A double headed and extrusion forming process was presented.The results reveal that the process exhibits greatly superior to the traditional process in saving materials

improvement of processing speed and properties of the product.