Two-roll cross rolling piercing with guide disc

Two-Roll Torsion Perforation with Guide

Two-role torsion perforation with guides has become increasingly popular in the manufacturing industry. Traditionally, perforation was achieved by drilling a straight hole through the metal. This was labor-intensive, time consuming, and left an unsightly metal bevel along the edges of the hole.Two-roll torsion perforation eliminates all of the issues associated with drilling. This process begins by using a rolling mill to create the hole. As the hole is formed, the guide ensures that the hole is round, straight and free from unsightly bevels.

The two-roll torsion perforation process takes two pieces of metal and rotates them in opposite directions on rollers. The rollers simultaneously rotate the pieces in opposite directions on their respective axles. As the pieces rotate, the guide connects the two pieces. This forces them to stay in place as they are being compressed against each other. This allows the leading edge of the second roller to pass through the first piece of metal and deform the metal around the hole while the trailing edge of the first roller works in order to expand the size of the hole.

This process is very efficient and cost-effective. Not only is the material removed quicker and more efficiently, but the holes that are produced have a very smooth surface without any visible bevels. This results in a much cleaner and safer product. Additionally, two-roll torsion perforation conserves energy and material due to the compression of the two pieces of metal which reduces the amount of material that needs to be removed from the hole.

The two-roll torsion perforation process also produces higher quality holes that are uniform in shape and size. This feature helps to ensure repeatable quality for any production run, enabling manufacturers to quickly and reliably produce products that meet their desired specifications.

All-in-all, two-roll torsion perforation with guides is an efficient and cost-effective way to produce perforations with uniform shape and size. The process conserves both energy and material while producing higher quality and safer products. Its many advantages make it an increasingly popular choice in the manufacturing industry.

Two roll crossed roll piercing is a tube making process. It utilizes a pair of successive driven rolls turning in the opposite direction. The rolls turn in an angle with respect to the center axis of the hollowed tube. The cross roll pierce machine is equipped with both rolls driven and a mandrel.

To process the tube using the two roll cross roll piercing machine, first, the hollowed tube is fed into the conical gaps of the rolls and is then clamped lightly by the axial force provided by the rolls to feed the hollowed tube between the two rolls. The mandrel is inserted between the two rolls, and the tube material will be extruded and elongated around the mandrel when rolls rotate in the opposite direction. As the rolls continue rotating and extruding the tube, it will form a new tube piece with a larger diameter.

The main advantages of two roll cross roll piercing process over the conventional piercing process are shorter processing time and higher procedure stability. With this process, it is possible to create complex shapes more accurately, while reducing the possibility of tube wrinkling. It is also suitable for any materials that can tolerate the extreme loading and deformation associated with the process. In addition, because of the high forming speeds, the process can be completed at a much higher rate than with conventional piercing processes.

In summary, two roll cross roll piercing is a suitable method for creating larger diameters of hollowed tubes from smaller tubes, as it is faster and requires fewer steps than other processes. Its main advantage is its ability to produce complex shapes more accurately and with less risk of failure due to tube wrinkling. This makes it an attractive choice for the production of hollowed tubes.