A Newly-designed Heading Machine for Cold-drawn Steel Tube

Elaborated in the paper is as newly-designed heading machine for cold-drawn steel pipes. The calculation formula for the shrinkage forming force is derived，and based on actual operation circumstances of the machine in the tube production line，proper manufacturing process parameters are worked out. The new type heading machine is designed with the principle of radial forging process. Actual operation of the machine shows that the headed tube has enough round front end which ensures smooth drawing operation，and gets the drawing requirements satisfied. And the heading machine itself features high heading speed，and high efficiency. Moreover，it is easy to realize automation of the machine，when necessary.