Video: 10 Design Tips for Sheet Metal Bending

Notching is a shearing process that removes a section from the outer edge of the part. Distortion may occur if the distance between the notches and the bend is too small. To avoid this, the notch-to-bend distance should be at least three times the material thickness. Plus, the bend radius notches must be at least 3.175 millimeters away from each other. The minimum distance between tabs should be one millimeter or the material thickness, whichever is greater.

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All sheet metal parts have the same goal which is to bend a sheet of metal to attain a certain product shape. But these methods differ in their performing operations. These various types of bending in sheet metal are fulfilled with the help of machines. Different bend sheet metal is different in the bend angle and bends radius with the same goal along with the standard techniques which not only ensure precision in work output but also a better aesthetic workpiece product. Below are mentioned some of the major methods and types of bending in sheet metal processes.

1.    V-bending

V-bending is the most common sheet metal bending process. It involves the use of machinery tools called to die and punch. The die used in this bending process is a V-shaped die, while the punch is also designed in a V-angled shape. The punch presses on the sheets of metal into a V-die and this is how the V-bending of sheet metal is obtained.  

2.   Roll Bending

This sheet metal bending technique involves bending the sheets into curved forms. This technique makes use of roll bending sheet metal criteria, that involve the use of three rollers, a hydraulic pressing system along with a brake. The distance between the three rollers allows the manufacturer to bend the sheets in curves.

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3.   U-bending

U-bending is exactly similar to the V-bending method. This method makes use of a U-shaped punch along with a U-shaped die. The only difference between V- bending and U-bending is that the resulting sheet is in a U shape instead of a V shape.

4.   Rotary bending

The rotary bending method is deployed wherever a bending of greater than a 90-degree angle is required. It can also be considered similar to that of V-bending, but the output in this process is more uniform and aesthetic as the metal sheet bending machine used in this method doesn&#;t scratch the surface of the sheet.

5.   Edge bending

This technique of edge bending sheet metal helps the manufacturer to bend the edges without damaging them. The sheet metal edge bending method is most commonly utilized in those sections of sheet metals that are shorter than the remaining metal part. It helps eliminate the sharpness of the corners and increases the aesthetic appearance of the outcome.

6.   Wipe bending

This bending method makes use of a wipe die. The sheet of metal is carefully placed inside the wipe die, and a pressure pad applies pressure on the sheet. Later on, the punch is used to make the desired bend in the sheet.

Above are discussed some techniques of sheet metal bending procedures. These are just a few basic techniques to cover the overview of these methods. On the other hand, each of these methods is further sub-divided into relevant categories.  Now, moving forward, let&#;s focus on the material requirements for a sheet metal bending process.

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