1,956
edits
Changes
Jump to navigation
Jump to search
Line 77:
Line 77: − + + + + + + + + + + + + + + +
→General Welding Knowledge
In the Welding Lab, metals are joined together using MIG (Metal Inert Gas), TIG (Tungsten Inert Gas), Stick and spot welding.
In the Welding Lab, metals are joined together using MIG (Metal Inert Gas), TIG (Tungsten Inert Gas), Stick and spot welding.
Each welder has its own special purpose and benefits. MIG is fast and much easier to learn than TIG welding. Spot welding is only used with sheet metal. TIG welding produces very clean welds and the heat is more confined to a smaller area. TIG will also allow you to weld very thin metals.
Each welder has its own special purpose and benefits. MIG is fast and much easier to learn than TIG welding. Spot welding is only used with sheet metal. TIG welding produces very clean welds and the heat is more confined to a smaller area. TIG will also allow you to weld very thin metals.
These are a few good steps to having a successful weld.
* Make sure the materials have no coatings. Welding of some coatings like galvanized metal can produce toxic fumes.
* Materials should be properly prepped and clean for best results.
* Make sure the process you are using is correct for your material type.
* Double check the weld settings and use a piece of scrap to practice before welding on your project.
* Only weld steel and aluminum. Do not attempt to weld unknown materials.
Here are a couple things to keep in mind:
* Material will be very hot after welding so always think before touching.
* Make sure the welder is properly grounded before attempting to weld.
* Never weld in wet clothes or around water.
* Never try to weld any type of tank that has ever held flammable liquids. This is very dangerous and can explode!
* Always check your welding hood settings prior to welding. (start with a darker setting and work your way down.
* Welding takes lots of practice so don't be afraid to ask for help.