What is Repair Welding?

Posted on July-07-2021

Repair welding is a popular technique that involves the cracked material being removed by arc gouging and the element welded to re-join the material on either side of the crack.

Here at Arc Welding Services, we offer welding machine and equipment repairs, services & calibrations both on-site and in our Birmingham-based workshop. We have decades of experience and are able to repair most welding machine brands and welding equipment, including but not limited to, TIG welders, MIG welders, plasma cutters and MMA stick welders – if you need repairs or a service, please get in touch with us today.

 

Successful welding repair follow this structure:

  • Welding procedure

A proper welding procedure must be accessible for welders to use. In the procedure, it must include the process that’s being used, as well as any information relating to any welding joint techniques that are required.

  • Welding equipment

There should be the right welding equipment supplied; this will ensure that delays won’t occur. In accordance with that, there should also be standby equipment that can be used, if needed. The welding equipment supplies should also include holders, grinder, wire feed and cables, etc.

  • Materials

In order to carry out the repair work, there needs to be sufficient materials to cover the entire job. Materials such as filler metals, insert pieces, reinforcing pieces, etc. There should also be materials that include fuel for maintaining preheat and interpass temperature, as well as shielding gases, and perhaps fuel for any engine powered welding machines.

  • Alignment markers

Before a weld is made, alignment markers are used; this can be a simple centre punch mark across the joint at various locations.

  • Welding sequences

In the welding procedure, there will be an indication and description of the sequence of welding that should be used.

  • Safety

During welding operations, safety precautions and procedures must be followed. This should include ventilation when fuel ases are used for preheating.

 

What are the two types of weld repair?

There are two types of processes that are most common for welding repair, these are: 1) shielded metal arc welding (SMAW) and 2) stick and flux cored arc welding (FCAW), also known as flux cored.

 

How many times can a weld be repaired?

The amount of times that a weld can be repaired is very much dependent on the type of weld it is that needs repairing. For example, low alloy steel re-welds are dictated by the heat-treated condition supplied.

Whereas, for Chromium-Molybdenum (Cr-Mo) steels, there can only be two rewelds carried out. Consideration should be given to the post-weld heat treatment operation, as well as any possible degradation of the joint weld.

 

Contact Arc Welding Services Ltd

We offer welding machine and equipment repairs, services & calibrations both on site and in our Birmingham-based workshop. If you’re looking for repairs, service and calibrations, get in touch with our team here at Arc Welding Services. You can give us a call today on 0121 327 2249, or fill out our online enquiry form and one of our team will be in touch with you shortly.

Weldability Sif
Tweco
Bosch
Johnson Matthey
makita
Tecna
Cebora
Mosa
pferd
Esab
Victor
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