What kind of aluminum plate can be bent

When sheet metal processing parts or designing sheet metal parts, it is often encountered that the aluminum plate cannot be bent and bent and cracked. What kind of aluminum plate can be bent? Sheet metal processing sorts out some aluminum plate information that can be bent. The aluminum plate can be bent mainly depending on the state of the material, and the state is divided into full hard, semi-hard, and soft states (usually soft states are called O states).

The bending effect of full hard is basically not very good (the state of the aluminum plate is H18, H19, H38, etc. are all fully hard) The semi-hard state of the aluminum plate can basically be bent (H24 is also semi-hard) O state bending is certainly no problem, but because it is too soft, basically bending in this state is relatively small. When processing sheet metal parts, pure aluminum materials are still rare. Basically all alloy aluminum (because the hardness of pure aluminum is not very good).

Alloy aluminum is selected as sheet metal parts, and semi-hard states such as 3003, 3005, 5052 can be used as sheet metal bending parts. If you use 6061, 2024, 7075 due to too high hardness, especially in the T6 state, it should not be bent, unless heated and bent again, the difference between good aluminum plate and poor aluminum plate is oxidation performance, tolerance, surface effect, crystal accuracy and uniform stability, etc. There is little difference in bending effect alone.

How to determine the bending coefficient of aluminum plate?

The bending coefficient of aluminum plate can basically be close to the bending coefficient of carbon steel (the bending coefficient table of aluminum plate can be found in the table of bending coefficient of aluminum plate in sheet metal processing, and the table of bending coefficient of carbon steel can be found in "sheet metal bending coefficient table and use method"), and the simple algorithm can be used: plate thickness x1.6, that is: 1mm of 5052 aluminum plate bending, a bend, the outermost size plus the outermost size minus 1.6mm is the unfolded length. Bending as far as possible reverse grain folding, aluminum plate has rolling lines, bending tools and rolling lines intersect 90 degrees is the best, not easy to crack.