Beverage can making process: Training videos (Part 4)
The necking and flanging parts of the beverage can making process are covered in the latest videos below. There is an explanation of each part of the process above each video. This is the latest upload in a series of videos that look at how a beverage can is produced. The idea of these videos is to help those who are new to the industry to learn about can making. Videos are courtesy of Ball Packaging Europe.
Part 9: Necking
The diameter of the can which is still cylindrical needs to be reduced in the upper section to accommodate the smaller end. During the necking process the can is loaded on to a lifter and the axial movement of the lifter presses the open edge into the outer tool.
There the upper rim of the can is bent inwards and the diameter cylindrically reduced by approximately 1mm. The lifter is then withdrawn, the can is pushed out of the tool using compressed air and conveyed to the next station. There the diameter is reduced further following the same procedure. A total of 15 stations are required in order to obtain the required final diameter.
Part 10: Flanging
The flange is required in order to seal the filled can securely to the end. The flange is produced in the 16th station of the necking in and flanging unit.
The can is again loaded on to a lifter and pressed axially on to a flanging head.
The open end of the can is bent outwards by the rotation of the three rollers of the flanging head spaced around the circumference and the flange is formed according to the geometry of the neck roller.