Types Of Welding Procedures We Provide

Here at Gammax, we specialise in the following four types of welding procedures and related qualifications to ensure each weld meets the highest standards of quality and compliance:

1. MAG Welding

Gas Metal Arc Welding, also known as MAG Welding, is a common type of welding where two metals that are to be connected are heated by passing a shielding gas along the wire electrode. This procedure, which covers plates and large bore pipes, requires a constant voltage and direct-current power source.

Modes Of MAG Welding:

• Globular transfer: The larger metal droplet size and the tendency for spattering during globular transfer result in a rougher weld bead. Thick metal plates can be horizontally welded using this technique.
• Short Circuit: Short-circuiting involves tapping the base metal repeatedly and quickly, several times per second, as the name suggests. This technique can be applied in any welding position because it generates less spattering.
• Spray Transfer: A steady-contact arc weld is maintained throughout the process during Spray Transfer. As a result of the steady contact tiny droplets of molten metal are produced. Despite the minimal spatter this technique creates, it works best with thick, flat horizontal pieces.
• Pulsed Spray: Spray Transfer and pulsed-spray are extremely similar, however, pulsed-spray uses a high-low current pulse to enable micro-cooling intervals. This method can be applied to a wide range of metal plate thicknesses and practically in all welding locations because of the way it is delivered.

2. TIG Welding

Tungsten Inert Gas welding, or TIG welding, is known for its precision and high-quality welds. This welding method is commonly used to join sections of stainless steel or non-ferrous metals. Here a fixed, non-consumable tungsten electrode is used in the arc-welding process to create the weld. It is considered as the most time consuming among all welding procedures.

3. MMA Stick Welding

Shielded Metal Arc Welding ( or MMA Stick Welding) is a reliable process used in the construction of steel structures as well as in industrial fabrication to weld iron, steel, and mild steel pipe using the open V-Groove. Here the welded junction is produced using a combination of electricity and consumable rod-shaped electrodes (welding rods) that have been coated in flux material.

To create an electrical arc between the electrode and the metal workpiece, an electric current is passed via the electrode. The electrode and the metal are both melted by this arc. The outcome is a mixture of molten metals made up of both the electrode and metal workpiece material.

4. Flux-Cored Arc Welding

Flux-Cored Arc Welding (FCAW) is ideal for welding thick materials and outdoor applications in building projects. This semi-automatic arc welding is an excellent substitute to MMA stick welding and offers portability and a fast welding rate. This process requires equipment similar to MAG welding, along with a continuous wire fed electrode and a power supply with a constant-voltage. However, it produces a huge amount of smoke which makes it unsuitable for indoor use.