Aluminum Bending Machine

Aluminum Bending Machines for cold bending aluminum profiles (extrusions), there are two popular bending machines: roll bending and stretch forming (press bending/Fluid Cell Presses are less common).

Aluminum Profile Bending: Aluminum alloy, being lightweight and highly malleable, can form complex shapes formed from a single piece, reducing assembly time and costs, and producing a high volume of parts quickly. The most common aluminum profile bent parts on the market are structural parts. Compared with welding parts, aluminum bent structural parts are not only more beautiful but also have higher strength.

The aluminum bending machine that people usually call is the three-roll aluminum profile roll bending machine because it is the most wide range application.

Aluminum bending machines also named: Profile Bending Machine, Aluminium Profile Bending Machine, Aluminium Extrusion Bending Machine, Aluminum Pipe Bending Machine, and Aluminium Bender Machine.

The operational principle of the 3-roll variable geometry aluminum bending machine involves all 3 rolls being capable of movement. During the rolling process, the top roll applies pressure to the aluminum profile between the two bottom rolls.

Common aluminum profile bending machine is a 3-roll variable geometry bending rolls. By reducing the distance between the bottom rolls, and by acting with the top roll “by pressing” on the initial part of the aluminum profiles, it is possible to minimize the straight part.

The technological innovations, accuracy, speed, and great bending performance of PBA aluminum bending machine make it excel in aluminum profile bending applications.

Please note: In the video, the prepainted aluminum extrusion are roll-bent using the PBA profile bending machine without leaving any marks on the surface.

The aluminum profile bending machine uses a simple, flexible, and efficient bending forming technology, and provides a reliable solution for the bending of various non-standard metal profiles and the production and processing of various aluminum alloy profiles.

It is widely used in various fields such as architectural doors and windows, curtain walls, decoration, the automotive industry, aerospace, rail transit, elevators, bathroom fixtures, shipbuilding, tunnels and bridges, and lighting.

PBA series aluminum roll bending machines offer versatility and precision, delivering exceptional craftsmanship to meet the demands of various markets: DXF, STEP Import: Once designed, the workpiece can be easily reproduced, ensuring seamless curves and intricate designs for various applications.

CURVATURE ACCURACY

With digital technology, any curvature can be achieved.  But the curvature accuracy of bending aluminum profiles is affected by springback. 

Now, the focus is now on solving springback to achieve precise and consistent workpiece dimensions.

In mass aluminum bending production, the most important thing is to use the simplest operation to quickly resolve the springback in a very short time.

In the PBA’s unique operating system, solve the springback problem in two steps: input the actual radius to get the coefficient, then input the compensation coefficient and start production.

Note: Springback refers to a material’s ability to return to its original shape after being deformed when it attempts to return to its original shape at a certain angle after being bent.

REPEATABILITY

When scaling up the production of aluminum profile bent parts, thousands of parts of the same design have consistent dimensions from one month to the next.

The default expectation for aluminum bending is production should provide interchangeable parts from batch to batch.

PBA’s aluminum bending machines utilize a combination of motion controllers and servo motors to ensure the precise repeatability of aluminum bending workpieces: Repeat Position Accuracy ≤0.01mm.

Notes: If driven by hydraulic cylinders, repeat positioning speed and accuracy( ≤0.02mm) are easily affected by temperature.

CROSS SECTIONAL DEVIATION

When aluminum profiles are bent, the inner radius undergoes compression while the outer side experiences tension. This forces the metal to ‘flow’ in a specific way under constant yield conditions into certain unconstrained areas, which is what causes cross-sectional deviation.

Crucial to prevent the deformation(cross-sectional deviation) caused by stress, especially when dealing with asymmetrical profiles. In the aluminum profile bending process, custom internal support tools are the best solution for addressing cross-sectional deviation, you need a reliable expert to design these tools.

The perfect aluminum profile bending workpiece should not have deformations or surface defects. ( Distortions, scratches, wrinkles, and cracks: No customer will accept this bad result.)

Now, you can access top-notch service from BIT’s engineers, boasting over 20 years of unrivaled experience in aluminum profile bending tool design.

• Full Servo Drive: Repeat Position Precision ≤0.01mm. Even the most complex profiles can be bent precisely and consistently, resulting in workpieces with tight tolerances and perfect.
• DXF, STEP Import: Once Designed in Soft, The Bending Process Can Be Auto-Created.
• Quick Solution To Springback: Only Two Steps To Solve the Problem, The Workpiece Can Be Reproduced At Any Time.
• Any Curvature: 3D Simulation (C, U, S, Parabola, Archimedean Spiral, Asymmetric Variable Curvature Arc), Synchronous Display Of The Aluminium Bending Process.
• Simple Operation: Operating the machine is a breeze—it’s as simple to use as an iPhone. The true industrial-grade CNC control system saves you valuable time, enhances productivity, and reduces downtime.
• Free Tool Design Services: A great machine must come with BIT’s carefully designed roll bending tool kit, delivering perfect aluminum bending to meet the needs of various markets, while saving time and costs.