When bending aluminum materials, in order to avoid aluminum cracking, you can follow the following recommendations:

First, choose the right aluminum material

Consider the hardness and composition of aluminum: It is preferred to choose aluminum with moderate hardness and uniform composition. For example, 1 series, 3 series, 5 series of aluminum is relatively common and easy to bend.

Pay attention to the quality of aluminum: the same type of aluminum, imported materials usually have better cracking resistance than domestic materials, although the price may be higher.

Second, adjust the process parameters

Control the thickness of the aluminum sheet: When possible, choose a thinner aluminum sheet for bending, because thicker aluminum sheets are more likely to crack during the bending process.

Adjust the bending R Angle: Increasing the bending R Angle can improve the success rate of bending. In general, the greater the R-angle, the more uniform the stress distribution of the aluminum during the bending process, and the lower the risk of cracking.

Third, pay attention to the bending direction

Ensure that the bending direction is perpendicular to the grain direction of the aluminum plate. This allows the aluminum to be stressed more evenly during the bending process, reducing the possibility of cracking.

Fourth, special processing steps

If the aluminum needs to be brushed, it is best to do it after bending. This avoids the increased risk of cracking due to stress changes within the material during bending.

Fifth, do a good job of safety and quality inspection

Safe operation: The operator should wear appropriate safety protective equipment and strictly follow the operating procedures to ensure the safety of the processing process.

Quality inspection: After the bending is completed, strict quality inspection is carried out, including checking whether there are cracks, deformation and other defects at the bending place to ensure product quality.

In summary, by choosing the right aluminum, adjusting the process parameters, paying attention to the bending direction, rationally arranging the special processing steps and doing a good job of safety and quality inspection, the problem of cracking in the bending process of aluminum can be effectively avoided.

MAANSHAN KAIMI CNC MACHINE TOOL CO.,LTD is located in the beautiful city of Maanshan. The core products of the company are KMB type electro-hydraulic CNC bending machine, WC67Y, WC67K type ordinary CNC bending machine, QC11K gate shear, QC12Y, QC12K type hydraulic pendulum plate machine, and so on.