What is 7 welding defects?

There are various types of welding defects. Here are seven of the most common:

1. Porosity: This refers to small gas bubbles or voids that get trapped in the weld metal during the welding process. Porosity can weaken the weld and make it more susceptible to cracking and corrosion.

2. Slag inclusions: Slag is the non-metallic by-product of the welding process. If slag becomes entrapped in the weld metal, it can cause the weld to be brittle and weak.

3. Cracks: Cracks can occur in the weld metal or the base metal. They can be caused by a number of factors, including excessive heat, stress, or the presence of impurities. Cracks can significantly reduce the strength of a weld.

4. Undercut: This refers to a groove that is formed in the base metal alongside the weld. Undercut can reduce the strength of the weld and make it more susceptible to corrosion.

5. Overlap: This occurs when the weld metal extends beyond the edges of the joint. Overlap can weaken the weld and make it more brittle.

6. Cold Lap: Cold lap occurs when two surfaces of metal that are supposed to be joined do not fuse together completely. This can result in a weak bond between the two pieces of metal.

7. Distortion: This refers to the change in shape of the metal due to the welding process. Distortion can make it difficult to fit the welded components together and can also affect the performance of the weld.