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Category Archives: Welding



What Is Spiral Welding?

In a nutshell spiral welding is the process by which a cylindrical object has a new surface welded onto it whilst the object is being turned on a rotary turn table.

However to understand this fully we first need to look at what exactly welding is, what are some of the uses of this specific process of spiral welding and what are the advantages of spiral welding?

What Is Welding?

Welding is the process by which two materials, usually metals or thermoplastics, are permanently bonded with each other. This result is created by heat being applied to both materials so that the areas of them which are to be joined melts, mixes and then solidifies to form a permanent bond. In many cases of welding a filler material is also introduced to the join which then also melts and mixes with those of the materials being welded together. In these cases this mixture of materials when solidified forms a joint that is often stronger than the original base material.

However the process of spiral welding introduces another material to the original (the substrate) in order to form a strong tough and durable overlay, rather than attempting to join it to a third material. The Spiral Welding process is applied in an inert argon gas atmosphere to prevent oxidation during the welding.

Uses of Spiral Welding

As mentioned above, spiral welding is the process of coating a cylindrical object with another material to renovate or recondition it. It can be used to rebuild damage from wear, erosion, corrosion or cracking, or to increase the dimension of the object to match it up to another part or matching component. It can be used on a wide variety of objects but is most commonly used on pipework and manufacturing shafts.

Advantages of Spiral Welding

There are many advantages to using spiral welding rather than other welding techniques. These can include:

  • Repairing a component via the spiral welding process is often cheaper than buying a new component and results in less possible downtime.
  • Faster turnaround time than manufacturing an entirely new component.
  • Can result in a higher strength component that the original, depending on the choice of coating material.
  • Spiral welding eliminates possible distortion of the substrate due to unbalanced stresses from normal welding processes.

To find out more about the spiral welding process and how it could benefit your business, contact the experts at IRS Ltd today.

If you’re interested in learning more about welding please read our article Different Types of Welding Explained.


Published Date: 5th December 2017
Category: Welding



Different Types Of Welding Explained

Different types of weldingIn its simplest form, welding is the process of joining to two materials (usually metal) together using heat and pressure which softens both materials and allows them to become forged. The concept of welding first emerged in the Middle Ages, but the process of weldeing as we know it today did not appear until the later yars of the 19th century with the Industrial Revolution. Today welding is a specialist craft and technology that has developed into multiple different types of welding, each with specific uses. Some of the most common forms of welding are detailed below, but there are also numerous methods that can be employed to complete almost any task – you can even weld underwater!

Arc Welding

The basic premise of arc welding is that a device is employed which gives off an electric current that then runs between the two materials that need to be joined. The name comes from the fact that often the electric current that forms gives the appearance of an arch. Arc welding is popular as it is often considered to be one of the lower cost types of welding. There are also numerous specialist sub-categories of arc welding such as Plasmas Transferred Arc Welding and Submerged Arc Welding.

MIG (Metal Inert Gas) Welding

This type of welding is often employed when the material to be welded is delicate and needs to be shielded from the effects of the welding process (apart from at the join) or if speed is of the essence. In MIG welding, a gas is used to shield the weld metal from natural elements in the environment, such as oxygen. This allows the welder to operate at a continuous rate thus increasing the speed of the process. Again there are numerous sub-types of MIG welding, such as Synergic Mig, which can be carried out by specialist contractors.

TIG (Tungsten Inert Gas) Welding

TIG welding comprises a similar process to MIG welding, except that TIG uses a tungsten current form, while MIG uses a metal electrode. Tungsten is used because it can be heated to a higher temperature than other metals before reaching melting point. This also means that an additional filler needs to be placed inside the welding device. TIG welding is often used in industries that work with stainless steel. As with other welding forms there are again numerous sub-categories of TIG welding such as Hot-Wire Automatic TIG systems, Synergic TIG and Heavy TIG.

For more information about the specific type of welding that would be most suitable for your project, contact the specialists in welding and overlaying processes at IRS Ltd today.


Published Date: 16th September 2017
Category: Welding