Welder Repairs Service

We specialise in various types of weld repair, including:

• MIG welding (Metal Inert Gas): MIG welding is a commonly used process that utilises a continuous wire electrode to join metals. It is known for its speed and versatility, making it suitable for various applications, including automotive repairs, fabrication, and general welding.
• TIG welding (Tungsten Inert Gas): TIG welding is a precise and intricate process that uses a non-consumable tungsten electrode to create the weld. It offers excellent control over the heat input and produces high-quality welds. TIG welding is often chosen for critical applications such as aerospace, medical equipment, and artistic metalwork.
• Stick welding (Shielded Metal Arc Welding - SMAW): Stick welding is a robust and versatile method that uses a consumable electrode coated in flux. It is commonly used for welding thick sections of steel and is suitable for outdoor and challenging environments.
• Flux-cored arc welding (FCAW): FCAW is a variation of MIG welding that uses a tubular wire filled with flux. This method allows for welding in various positions and performs well on thick materials, making it ideal for heavy-duty repairs, construction, and shipbuilding.

Yes, generally welding over a previous weld is acceptable and can even be beneficial in specific situations. For instance, adding additional welds can reinforce a joint and increase its strength, which is crucial when the original weld has failed or is insufficient for the intended load. It is also necessary when making modifications to existing structures. However, caution should be exercised when the original weld has defects or is incompatible with the new weld. In such cases, it's better to remove the faulty weld and perform a fresh weld for optimal results and joint integrity.

Yes, welds can weaken over time due to various factors:

• The natural ageing process of materials can lead to fatigue and microstructural changes, reducing strength. 
• Exposure to corrosive substances, extreme temperatures, or moisture can also deteriorate welds, especially in industries like oil and gas.

Poor welding techniques and inadequate quality control can contribute to weld weakening. Regular inspections and maintenance are crucial to identify potential weaknesses. Our weld repair services address these concerns, conducting inspections, performing repairs, and ensuring welds meet industry standards and safety requirements. Regular maintenance and timely repairs ensure the longevity and safety of welds in various industrial applications.

The number of times a weld can be repaired depends on the material, welding technique, and damage severity. In general, most welds can be repaired multiple times if certain conditions are met. 

• The base material: Different materials like carbon steel, stainless steel, or aluminium may require specific repair approaches due to their unique properties.
• Welding technique: Methods like TIG, MIG, or stick welding impact repairability differently. Some techniques may introduce excessive heat, limiting the number of viable repairs.
• The severity of the damage: Minor defects can often be repaired without compromising integrity. Extensive damage may reduce the number of viable repairs.

If you’re unsure whether your material can be rewelded, we recommended consulting with one of our experienced welding professionals to assess the weld accurately and determine the feasibility of a repair.

Common weld defects can vary based on the welding process, materials, and conditions. Some frequently encountered defects include:

• Porosity: Gas pockets trapped in the weld lead to weak and porous areas. Caused by inadequate shielding gas coverage or improper cleaning.
• Lack of fusion: Insufficient bonding between weld metal and base metal due to low heat input or the use of incorrect welding techniques.
• Incomplete penetration: Weak bond when the weld doesn't reach the joint's full thickness. Caused by insufficient welding current or improper preparation.
• Cracks: Result from stress, improper cooling, or hydrogen embrittlement, compromising weld integrity.
• Undercut: This defect appears as a groove or indentation along the edges of the weld. It can be caused by excessive welding current or improper manipulation of the electrode.

To minimise defects, we follow proper procedures, use appropriate techniques, and ensure we are using skilled welders. Regular inspections and quality control are vital to maintaining structural integrity.