Minimum Bend Radius Plastic Sheet

The minimum bend edge dimension l in the figure is the minimum bend edge dimension of one bend edge plus t t is the material thickness and the height h should be selected from commonly used plates such as 0 5 0 8 1 0 1 2 1 5 2 0.

Minimum bend radius plastic sheet.

Tighter radii may result in crazing or cracking of the coating. Minimum cold forming radius sheet thickness x 100. For this reason strip heat bending is recommended on all gauges 118. Use this document to choose values that are both manufacturable and meet your needs.

But for harder materials e g. Line bending or thermoforming a brasion resistant acrylic sheet is not recommended. As a guideline the material can be radiused to 100 times the thickness. In steel between 0 5 and 0 8 in.

It is given by multiplying the thickness of the sheet by 100 i e. The minimum bend radius data shown in these charts is measured to the inside of the bend. The bend radii listed are standard minimum if manufacturing for aircraft and aerospace applications. Unfortunately sheet metal bending is not always going to be the same in every shop.

The bend allowance is defined as the material you will add to the actual leg lengths of the part in order to develop a flat pattern. Minimum inside bend radius for sheet metal recommended inside bend radius for sheet metal parts should be equal to material thickness. Cold forming plexiglas sheet can be cold formed bent at room temperature in a smooth arc and held to a radius by forcing the material into a curved channel support. Cold forming is possible.

Bend radii minimum bend sizes. Never heat acrylic sheet in a kitchen oven. This radius is applied in all cold bending procedures. Crca inside bend radius equal to 0 65 times of sheet thickness is also enough.

Generally this height is not suitable for selecting a higher size. This gives the minimum radius that should be attained if the final form is to remain in place. The recommended radius of curvature should be a value greater than 180 times the thickness of the sheet for plexiglas g sheet and 300 times the thickness for plexiglas mc sheet see table below. Again the minimum inside bend radius is even larger when bending with the grain.

To calculate the minimum bend radius of curvature multiply the thickness of the sheet to be used by 330. It is most economical to use a single bend radius throughout the design but if necessary you can utilize multiple radii. Cold bending tuffak gp polycarbonate sheets may be cold bent with the minimum radius based upon the sheet thickness.