How is aluminum sheet bending formed?

Aluminum sheet bending is an important process in the production and processing of aluminum sheets and represents a job with a high level of technical skill. Bending aluminum sheets is a standard process for any shaped aluminum sheet, unless otherwise specified by the customer. Bending conventional aluminum sheets is relatively straightforward, but bending curved aluminum sheets increases the difficulty significantly, sometimes doubling or even tripling it. This process is crucial for ensuring the overall accuracy of the aluminum sheet and must be carried out with extreme precision and accuracy.

Conventional aluminum sheet thicknesses typically range from 1.5mm to 3.0mm, with most falling between 1.5mm to 2.0mm. Prior to bending, suitable molds must be selected and adjusted for positioning. Additionally, protective film should be applied to the grooves of the bending machine to prevent damage to the aluminum sheet during the bending process.

The standard process for bending aluminum sheets involves several steps:

1. Carefully review the aluminum sheet processing drawings and requirements to determine the bending sequence before proceeding with the bending process. Adjustments to the machine settings should be made based on the size of the internal angles to ensure that the products meet the required dimensions and quality standards.

2. Special precautions should be taken for unique situations, such as bending large-shaped aluminum sheets, which may require supporting the workpiece during bending to prevent the bending moment from causing damage to the sheet. Extra attention should also be given when bending punched, carved, or hollow aluminum sheets, as mishandling can result in cracking.

Bending serves several purposes:

1. Increasing rigidity: Bending creates an "L" structure that enhances the rigidity of the aluminum sheet. This is akin to folding a piece of paper, which prevents it from bending easily afterward.

2. Aesthetics: Aluminum sheets without bending often lack visual appeal. Bending the edges of the sheet adds height and a sense of sophistication.

3. Installation considerations: Bending creates connection points for installing aluminum sheets on wall studs or ceiling supports, ensuring that connection components are not exposed on the surface.

4. Joining: When connecting two aluminum sheets, whether with seams or flush, the edges are often bent to facilitate a seamless connection. This ensures a smooth surface when assembling the sheets.

When bending aluminum sheets, attention should be paid to four key details:

1. Operator proficiency: Operators must be highly skilled in machine operation and undergo specialized training before performing bending tasks to ensure safety.

2. Edge size: The minimum edge size must consider the dimensions of the bending machine's jaws. If the edge is too small, the jaws may not be able to grip the aluminum sheet properly for bending. The commonly accepted minimum edge size for bending equipment is 9.5mm.

3. Length of the edge: The bending machine's typical size limits the length of aluminum sheets to 6m. If longer sheets are required, grooving and manual bending techniques may be employed. However, precise calculations are necessary when employing these methods.

4. Edge radii: During bending, the inside of the aluminum sheet is compressed, while the outside is stretched, resulting in unequal radii on both sides. The radius of the edge is typically equal to the thickness of the sheet. Actual dimensions may vary slightly due to equipment, processes, and the skill level of technicians.

After bending aluminum sheets, attention should be paid to the following:

1. Handle the bent aluminum sheets with care to avoid collisions or scratches, and place them on carts according to designated areas for subsequent processes.

2. Conduct a thorough inspection to ensure that the bent aluminum sheets are free from noticeable scratches or abrasions, with the angle error within specifications and the bending height error controlled within 0.5mm.

Company Details：

Company: Foshan Qi Aluminum Decorative Materials Co.,Ltd

website: www.aluminum-panel.com

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