Nov. 04, 2024
The metals industry is one of the most important sectors of the global economy. Metal bending is a common procedure in transforming metal into finished products. Bending metals may look simple, but it requires a variety of specific techniques and complex machines.
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Our metal bending experts introduce you to the top 5 metal bending techniques used today, to help you choose the most suitable bending technique for your industrial project.
A press brake is a metal bending machine that consists of a worktable, a hydraulic cylinder, a bending tool (called a punch) and a holding tool (called a die).
The unbent metal is placed on the worktable between the punch and the die. The hydraulic cylinder lowers and puts pressure on the metal until it bends into the shape of the die.
This bending technique is very precise and works well for bending complex, large or thick metal parts. However, it is relatively expensive and requires specific training to be used safely.
Press brake bending is used widely in industrial settings, from automotive parts manufacturing to the production of equipment for the oil and gas industry. It is the preferred technique for parts that require high precision, such as machine components, door frames, body panels, etc.
A rolling machine is used to bend metal sheets into cylinders, cones or similar shapes. It consists of three rollers: two side or bottom rollers and a center roller. A metal sheet is placed between the rollers, which rotate to exert force on the sheet and bend it to the shape of the rollers.
Folding with a rolling machine is ideal for projects requiring curved metal parts. The side rollers can be adjusted to create complex shapes, making it a very versatile bending technique. However, rolling machines are not the best choice for bending thicker parts or parts requiring high precision.
Industrial applications for roll bending are diverse, ranging from pipe and tank manufacturing to the production of components for food and beverage processing equipment.
Most manufacturing companies need to do sheet metal bending at some stage of their production process. Sheet metal bending refers to bending or cutting sheet metal into specific shapes or joining it to other metal sheets to create metal parts.
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In this article, our machinery maintenance and repair experts present the most common techniques for bending sheet metal in an industrial setting. We&#;ll cover their advantages and disadvantages, and the tools required for each technique.
Sheet metal bending requires the use of specialized tools if you want precise and high-quality end results. Shears, manual bending machines and hydraulic bending machines are the basic tools for bending sheet metal.
Shears cut sheet metal into pieces. They can be manual or electric and are often used to cut specific geometric shapes in a sheet of metal before bending it.
A manual bending (or folding) machine is the standard tool for bending sheet metal. It is often used for simple bends and is available in different sizes depending on the thickness of the sheet. It is also relatively easy to operate and transport, making it a popular choice for small machining companies or workshops.
A hydraulic bending machine is a more advanced sheet metal bending tool. This machine contains a hydraulic system that can bend thicker and larger sheets. It is also equipped with a digital control system that allows different types of bends to be programmed and performed automatically. It is ideal for large manufacturing companies that need to produce large quantities of sheet metal parts.
Multiple tools mean multiple metal bending techniques. To choose the method that best suits your business, it is necessary to understand the differences between the possible approaches.
If you do not have a bending machine, you might be able to bend metal sheets by hand. First, you need to calculate the bending tolerance of the sheet according to the type of metal you are using. Next, indicate the bend lines with a marker and cut your sheet to the appropriate dimensions. Place the plate firmly within a vise grip using a wooden block as a guide for the form or angle you will be bending the sheet into.
Next, use a wooden hammer to gently pound the sheet against the wooden block until the metal has changed shape. This method is only recommended for sheets up to 2 mm thick, as thicker sheets may break.
Although manual bending is a simple and quick method, it does not guarantee the level of quality and accuracy that a bending machine can offer. For thicker sheets or more complex bends, it is recommended to use a bending machine to avoid breaking the sheet.
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