Seaming of Flanges
Seaming is a method of joining two sheet metal pieces together. It is similar to hemming except a slight increase in press tonnage is necessary.
User Input
1. Select "Gage Number"
The thickness of the sheet metal is called its gage. The gage of sheet metal ranges from 36 gage to 3 gage. The higher the gage, the thinner the metal is. If you don't know the gage number, select 16 (.0598) from the list for now. The actual decimal size will appear on the next line. You can then go back and reselect until the decimal size you want appears on the screen.
2. Enter "Length of Part".
3. Enter "Width of Part".
4. Enter the "# of Seams".
5. The program will calculate the part weight for informational use only.
6. The Final "Time per Piece" will be for the total number of Seams made to the part here.
Sheet edges are often folded over, or “hemmed” like a pair of trousers. This produces a bend whose flanges are parallel to each other. Hemming increases the rigidity of the finished part and provides edge protection. Interlocking hems are also frequently employed in lock seams for joining parts.
Hemming is performed in two steps. First, the operator makes an initial bend of 30 degrees. Next, the work piece is repositioned in the tool, and the machine flattens the fold.
Blog
LinkedIn
Facebook
YouTube
Twitter
