Overtime thing start to fall apart and need to be repaired. Welders are great for repairing a wide range of materials and products. But sometimes your welder is the thing that needs to be repaired. That’s where B & E Gas Supplies comes in. We have a fully equipped workshop to service and repair your welding and gas equipment.

Preventative Maintenace

When it comes to tools of the trade, a welder is usually at the higher end of the cost. It is also one of the tools that you don’t have a spare just laying around. When you are in the middle of a job and your welder decides to cark it, you don’t really have many options. That’s why we recommend preventative maintenance on all your welding equipment. Although usually not overly complicated, it can be confusing to know what type of preventative maintenance is required for your specific type of welder. Whether its cleaning out transformers, tightening electrical connections, oiling bearings or inspecting components, it is all important to do prior to your machine breaking down.

If you aren’t sure on what you need to do, give B & E Gas Supplies a call, or bring in your machine and let us do some preventative maintenance for you. A little bit of time and money now will save you a lot of time and money in the future.

Call us 02 4276 1006 to book in a service

Repairs

Even with all the preventative maintenance in the world, your equipment will most likely eventually need some repairs. This can sometimes be as minor as fixing a small electrical connection, or a major failure that requires many hours and expensive parts to replace. B & E Gas Supplies can repair all major brands of welding and gas equipment including industrial products such as MIG and TIG welders, to home products such as the backyard BBQ. We have fully qualified mechanics to diagnose and repair your equipment.

Call us 02 4276 1006 to book a repair

Common Welding Problems

Welding is a process of mending something that was broken using heat and pressure. Welding is done on materials like metals and thermoplastics. Different techniques are required for different materials such as delicate pieces of jewellery to vital automobile parts. Here are a few common welding problems and how you may be able to fix them yourself.

Weld cracks
Weld cracks occur on the item’s area, exposed to significant heat or on the welded part. The cracks formed to differ in terms of the temperature conditions, e.g., hot cracks, cold crack, and crater cracks.

Cracks can be filled by preheating the welded part of metal or providing an atmosphere that ensures the proper cooling.

Porosity
Porosity occurs when the welding metal gets contaminated; it produces small bubbles or pores of a gas that get entrapped. These pore-like structures in the welded part make it weak and will cause breakage after some time.

All welding machinery should be adequately cleaned before usage to ensure work quality. Using the right electrodes help significantly to reduce the contamination of the weld.

Spatter
Spatter is a by-product of molten material when welding using Gas Metal Arc Welding (GMAW). Spatter occurs when the welding machine gets overheated due to high-currents or incorrect polarity etc. At this point, the device would emit drops of the melted welding material. We cannot eliminate this fault, however, routine maintenance of the welder can help limit the effect.

Cleaning used weld machinery, reducing the arc’s length, and using the correct polarity can lower the chance of spatter from landing on the welded item.

Incomplete diffusion
This problem occurs when the welding material doesn’t fully reach the end of the weldment. This problem may occur due to several reasons; either the gap is too much, or you don’t give enough time for the molten welding material to fall into the crack, or it isn’t molten properly due to insufficient heating.

To avoid this, use an electrode size that aligns with the gap or cracks you’re about to weld. Utilise joint geometry and the proper tool with an appropriate current flow that ensures a smooth welding process.

Undercut
Similar to incomplete diffusion, undercut happens when the right electrode is not being used. The welding current is too high, or the you did not give enough time for the welding material to settle in. An Undercut can also be fixed using the right electrode, reducing the arc length, and maintaining a steady speed while welding, not too fast and not too slow.