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What is it?
Sheet metal bending is a manufacturing process in which sheet metal is bent and formed into specific angles to create components and end products. It is widely used in various industries due to its versatility and ability to produce a wide variety of shapes and sizes.
This process involves the use of a bending machine, also known as a press brake, which applies mechanical force to bend sheet metal along a bend line. The sheet metal is placed between a punch, which exerts the pressure, and a die, which acts as a support and defines the shape of the bend. Depending on the design and product specifications, multiple bends in different directions may be necessary to achieve the desired shape.
Sheet metal bending is essential in the manufacture of a wide range of components and end products. For example, in the automotive industry, it is used to manufacture car bodies, door panels, bonnets and mudguards. In the aerospace industry, it is used to build aircraft structures and turbine components. In addition, in the manufacture of household appliances, furniture, electronic equipment and architectural structures, sheet metal bending is essential to create functional and aesthetically appealing products.
The importance of sheet metal bending lies in its ability to produce components with high precision and consistency. Products manufactured using this process are often lighter, more durable and cost-effective compared to other manufacturing techniques. In addition, sheet metal bending allows for quick adaptation to changes in design or product specifications, making it ideal for prototyping and mass production.
Laser cutting
01.
Versatility
It allows the creation of a wide variety of shapes and geometries from flat metal sheets offering a wide range of possibilities to meet the most demanding design needs.
02.
Structural strength
The bending process significantly increases the strength and stiffness of metal parts. By bending the sheet metal at specific angles, reinforced areas are created that increase the load-bearing capacity and resistance to deformation of the parts.
03.
Efficiency
The automation of bending machines allows bending to be carried out quickly and accurately, which significantly reduces production times. In addition, sheet metal bending uses less material compared to other processes.
04.
Accuracy
Modern bending machines allow bends to be programmed and executed with millimetre accuracy, ensuring that part dimensions and shapes are consistent and meet design specifications.
How is it done?
01. Preparation of the material
The metal sheets are cut to the required dimensions using techniques such as laser cutting, punching or shearing. Occasionally, the sheets may have deformations or surface irregularities that must be corrected before bending. Straightening machines are used to smooth the sheet to ensure a flat, even surface.
02. Folding tools
The bending process requires the use of various tools, the most important of which are the following:
Press brake: This is the main machine used in sheet metal bending. It consists of a frame that holds a punch (upper) and a die (lower) between which the sheet metal is placed. The press applies the necessary force to bend the sheet metal to the desired design.
03. Configuration, adjustments and folding
Before bending begins, adjustments are made to the machine to adapt it to the material and component design. Once the machine is set up, the actual bending process begins.
The sheet metal is placed between the punch and die, ensuring that it is correctly aligned with the stops and gauges. The press applies the necessary force to bend the sheet to the design specification. The sheet is folded along the fold line defined by the die, thus forming the desired shape.
04. Quality control
Once bending is completed, an inspection is carried out to ensure the quality of the parts.
Quality control ensures that bent parts meet the required tolerances and specifications, thus ensuring their suitability for use in the manufacture of components and end products.
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