Weld quality assurance is making sure that when two pieces of metal are joined together by welding, the job is done right so that everything stays safe and sticks together well.
To check the quality of a weld, people use special tools and techniques to make sure that the weld is strong and will not break under pressure. This is important because when things are built using welded pieces, they have to be able to hold up to hard work and keep people safe.
One way to make sure a weld is good quality is to test it. This can involve examining the weld with a magnifying glass to look for any tiny holes or cracks. Another way to test it is to put it under a lot of pressure to see if it can hold up without breaking.
To make sure welders are doing things the right way, there are special rules and guidelines they have to follow. They might have to wear protective gear like gloves and goggles, and follow specific steps in order to make sure that the welding is done right.
Overall, weld quality assurance is about making sure that welded pieces are safe and strong, and will not fall apart or hurt people.