The main principles of tube bending

We have been providing top tier tube bending services for years. Our team is an experienced and talented one. This allows us to offer the most professional service possible. We will take the time to understand your requirements and answer any queries you might have. Not to mention, we work with a wide variety of materials. As a result, we can help with many different needs.

After you fabricate a tube, it often needs post-fabrication treatments. Without them, it cannot be a usable product. Bending is one of the most frequent next steps here. You can carry it out manually or via computer-control machines, as well as with cold or hot forming methods. This will depend on what specific bending operation you are using. Saying this, the main goal here is the same. The aim is to adapt the tubing with care and precision so it will suit the end use.

Bending forces

Tube bending servicesAs you are bending a tube, the external wall at the bend’s point starts to stretch and thin out. At the same time, the corresponding internal segment of the workpiece becomes more compressed and thicker. Managing such degrees of physical deformation is essential for generating a smooth bend.

Thick wall tubes that you bend at a wide radius will probably have a somewhat low level of deformation. Thinner tubes might not though.

Bending services normally measure the wall factor. This is the ratio of your tube’s wall thickness to its exterior diameter. It is done to find out whether you should treat it as a thick or thin workpiece.

You are able to make a similar comparison between the tube’s exterior diameter and the centreline radius. This is to determine if a bending radius is wide or tight.

The combination of the wall factor and bending radius is employed to delegate a bend’s complexity. Under parameters where the external and internal walls would not be severely compromised, you can perform a simple bending process. You can use a basic die set here like a clamp, bend, and pressure die array. The clamp die holds the tube in place while the pressure die forces it against the bend die to curve into the necessary shape. Come to us for the best tube bending services.

Mandrel forces

In some cases, the tubing workpiece won’t fit the preferred criteria. So, you won’t be able to properly shape it using basic die set utensils. As the wall factor measurement becomes bigger from the exterior wall thinning, the bend radius will grow tighter too. This improves the chances of a flattened bend. It typically happens if your wall is too thin to preserve its integrity at the bend’s angle.

A mandrel is usually necessary to make up for this disadvantage. It is a tool that you can affix to the tube’s interior at the point of your bend. As a result, it will offer support through the whole operation.

You can design the mandrel as a sequence of balls that adjust and flex according to the bend or have a single plug. You are also able to utilise a plug style one to apply extra bending force on thicker tubes. These are ones that are frequently harder to shape.

Wiper dies

Under harsher bending conditions, interior wall compression could unevenly develop. The result will be a wrinkle effect. A wiper die could prove necessary to lower the danger of wrinkling on your workpiece. You can wedge it into the groove between the bending die and tube. As a result, it fills the gap, leaving your tubing constricted. It will remove any room for a wrinkle to develop. Wipers are often useful in tandem with a mandrel to further lower the chances of deformation.

We give our clients top quality results with tube bending services

At Multiform Tubes Engineering Ltd, we use the most up to date machinery when providing services. Consequently, we can alter tubes with outstanding accuracy. The results for our clients are far superior because of this.

So, if you would like to experience our tube bending services for yourself or need help in other areas, get in touch today. We can help you with tubes for various needs.