You often come across do-it-yourself projects that require you to join several pieces of metal. Rivets and special nails come in handy at such times, but you cannot count on them to create strong bonds between certain types of metals. You need something more reliable and less invasive than pushing pieces of rivets into a metallic material. Welding works well for various types of metal, and you can use different methods of welding to complete your project. Here is a comparison of spot and TIG welding to give you more insight into welding.
In spot welding, you join two or more pieces of metal by pressing them between electrodes. The electrodes link to each other through a small spot and you must apply the right amount of electrical current to get the desired results. The timing of the welding process will depend on the type and density of the metal you are joining. Denser, thicker metals need more time compared to thin sheets made from materials like aluminium.
Spot welding is the best technique when you are joining cabinets, brackets and metal assemblies made up by many sheet metals. It also works well when you are assembling items with overlapping metal sheets such that the material leaves no gap. On the downside, spot welding only suits applications where the joint between two points surpasses the need for everything else. You will not have to grind the metal joint after welding as spot welding delivers a smooth finish. If you are looking for strength and durability, then you are better of going with TIG welding.
TIG refers to Tungsten Inert Gas welding. The process requires a combination of electrodes and inert gas to complete a weld. The purpose of the electrode is to manipulate electric current into an arc that creates enough heat to melt the metal you want to join. The inert gas, on the other hand, maintains a pollutant-free surrounding that protects the metals you are welding from oxidation. Normally, you can use argon to serve this purpose.
TIG welding is the go-to method for creating strong and durable metal bonds. The inert environment slows down the process and ensures that maximum time is used to heat the metals as they link into one. The distortion of the material ranges from minimal to extreme depending on how much time you take to make the weld you desire. Additionally, TIG welding requires more supplies compared to spot welding, making it a costlier option.
For more information, contact a welding service.