What are the Different Types of Welding Techniques?
Welding is basically a sculptural or fabrication process used to join metal or sometimes other materials. This is done by fusion at high temperatures.
In more laymen terms, welding is typically used for practical purposes such as for constructing a home or a building or mending car parts back together. Its purpose is to provide a permanent joint between two or more materials which can be the same type of materials, often times to prevent leakage. This is done by heating them to a certain temperature. However, aside from practical uses, some consider welding an art form.
There here are a few different types of welding techniques and below will explain them.
The Different Techniques Explained
TIG welding which is also referred to as Gas Tungsten Arc Welding is done by using tungsten rods which create a defined and neat weld. This kind of weld is best for when the welded area is visible.
• How to Perform a TIG Weld
When performing a TIG weld you’ll want to make sure you clean the metal really good. Then, you want to make sure you don’t contaminate the weld so you need to choose the smallest electrode you possibly can. For the highest quality TIG weld, you’ll want to always use the shortest arc length that still allows you to complete the job.
MIG Welding which is also called Gas Metal Arc Welding is done without the welding torch ever actually touching the metal after the material has been thoroughly cleaned.
Wearing the Right Work Wear
Regardless of which style you use it’s important to use the right safety gear. Welding is extremely hot and can cause serious injury by not only burning you physically but, over time can damage your eye sight as the arc lets off very high amounts or light that can burn your retina. Wearing special welders work boots that stop sparks burning your boots is necessary and wearing long sleeve clothing is important but wearing a welding hemet is vital.
• How to Perform MIG Welding
The first thing you must do is use a grinder, solvent, or water and detergent to properly clean the material ensuring any grease is gone before you start the welding process. Then, you should begin welding by using a weaving or zig-zag pattern in a pushing motion. This will give you the right amount of coverage of the shielding gas.
Stick Welding is also called Shielded Metal Arc Welding. This is the easiest type of welding technique which can be done on metals that have not yet been cleaned so obviously it will be less time consuming for you as well.
• How to Perform a Stick Weld
The first thing to keep in mind when doing a Stick weld is to make sure you use the right amount of amperage according to the thickness of the metal you are working on. Remember that the length of the arc cannot be longer than the metals’ thickness. You’ll want to hold the welding rod perpendicular to the surface of the metal. You should also hold the electrode between a 5 and 15-degree angle while you are pulling it across the surface. Mind your speed so you keep the electrode at the top ⅓ of the pool.
How Are They Different?
TIG Welding is best used for aluminium because of the level of heat needed while not allowing the material to overheat.
MIG Welding is best when done on thicker objects. This is because you don’t have to heat the material the whole way through to make the fusion.
Stick Welding is the most cost-efficient and oldest method of welding which can be performed outdoors or in windy conditions.
• TIG Welding uses a non-consumable tungsten electrode
• Objects don’t have to be hot enough to form the bond
• MIG Welding works with a continuously-fed wire which acts like filler material
• Objects can be joined from the melting electrode as filler material
• Easier to control than TIG Welding
• Stick Welding is best for beginners
• It’s the most versatile and least time consuming
• You don’t have to clean the material before performing the weld
Welding is a process that takes time to master and should not be taken lightly. However, it’s possible to learn these techniques and use them to your advantage if you take the time to figure out the process. Don’t forget to make sure you have the right tools and workwear before you get started.