Welding is a surprisingly complicated field which is why welders need to go through a very difficult training process once all has been said and is now out of the way. Figuring out the manner in which welding tends to be done can take you weeks, and you would then need to put several years into your field before you can go to an employer and say that you can handle all of their welding concerns on their behalf without them having to lift a finger or put any effort in at all.
It would be great if you learned about flux core welding. The reason behind this is that it is a type of welding that is used in many different industries, and knowing how to do it would most definitely make you a great deal more hirable than might have been the case otherwise. The way that flux core welding works is that an arc of electricity is produced through an electrode which would generate the necessary heat that can melt metals to the point where they would start to fuse with one another.
This electric arc needs to be kept stable, and another way of saying that is that it has to be kept in flux. That is why the practice has this kind of name. Flux core welding is very powerful because it creates so much heat that virtually every metal would melt when it is faced with it. That makes it useful in jewelry making as well as car manufacturing both of which are high paying fields that you would want to start looking into without any kind of delay that would make you lose out on opportunities.