Rotary Bending Sheet Metal

Bending of sheet metal is a common and vital process in manufacturing industry.

Rotary bending sheet metal.

It is important to bear in mind that bending is done after the cutting process. Bending is one of the most common sheet metal fabrication operations. When sheet metal is bent it stretches in length. And like their single rotary bending cousins these double rotary tools are designed to adjust for springback and angle variation from material inconsistencies.

The formed bend radius is dependent upon the dies used the material properties and the material thickness. Not to mention sheets get marked up in the bending process. The sheet metal lays on an anvil and the rotary die is pushed down on top of it. This is done through the application of force on a workpiece.

The cylinder is seated into a saddle making up the punch section of the die. Also known as press braking flanging die bending folding and edging this method is used to deform a material to an angular shape. The bend deduction is the amount the sheet metal will stretch when bent as measured from the outside edges of the bend. After the bend is completed and on the press s returnstroke the spring forces the rocker to return back to its original or idle position figure 1.

As the bender moves down the rocker makes contact with the sheet metal. Nanjing byf o machinery co ltd whatsapp. Bending large or heavy sheets especially to 90 degrees often requires excess labor and can cause safety concerns. With rotary bend tooling you get a smooth cost effective solution that uses up to 50 percent less tonnage.

The bend radius refers to the inside radius. A press brake is used to give the final shape to a part. Creating a change in the part s geometry. A rotary die is a special type of punch die combination which bends the sheet metal using a rotating cylinder with a v opening cut into the side of the cylinder.

Sheet metal folding is a very common forming method used to give the desired shape to structural steel stainless steel aluminium etc. One contact point acts as a holding pad while the opposite contact point rotates creating the bending action. Similar to other metal forming processes bending changes the shape of the work piece while the volume of material will remain the same. Therefore you have to keep some design tips in mind.

Some specialized applications use double rotary bending systems that can help make two angles at once often to form deep channels in sheet metal.