Motorcycle shock absorber with 7075aluminum tube, including a section with
Straight tube, one end of the tube having a gradually enlarged diameter bell, which is characterized in that the shape of the aluminum tube arts includes:
1, casting aluminum bar, the bar cut into profiles, and according to the required size drilling center hole;
2, with the swimming needle will be formed in the extrusion of extruded pipe seamless aluminum tube;
3, will squeeze a good end of the aluminum tube immersed in the lubricant;
4, will lubricate the aluminum tube into the expansion tube on the end of the end of the expansion tube;
5, will expand the aluminum tube for aging treatment.
With the above-mentioned scheme, it is possible to obtain a seamless aluminum tube of excellent quality and economy, and the physical properties of the aluminum tube are good,
Easy to crack, easy to break, fully meet the requirements of users, to achieve the purpose of the invention.