why is it important only to strike the arc in the weld joint
Because if there was to roof everything would get wet when it rains.
like a spot weld, you don't weld 100 percent until it's all together and everything is square
con cac
Sugaring in a weld refers to the formation of a crystalline structure on the surface of the weld in stainless steel due to overheating during the welding process. This sugaring can make the weld more susceptible to corrosion and reduce its overall strength. It is important to avoid sugaring by using proper welding techniques and protecting the weld from excessive heat.
A heavily oxidized weld deposit refers to a weld that has been exposed to oxygen during the welding process, leading to an excessive formation of oxides on the surface. This can weaken the weld's integrity and compromise its mechanical properties. It is important to avoid excessive oxidation during welding by using shielding gases or fluxes to protect the weld from oxygen.
A weld log is a Quality Managment tool that acts as a database used to keep an ongoing record of welds made during construction fabrication type projects. The Weld log is used to record Important information recorded as "weld number" Welders Stencils", "Weld Procedure", "Weld Type" Material Type" "Project#" and any other important information to ensure the traceability and Quality Assurance of each welded junction during fabrication or repair activities. The best example can be found here: http://sites.google.com/site/masterweldtracker/
Everything around you is wet, not you. When you come out of the water, its like breaking a barrier that can make you wet, that's why you feel like there is just a ring surrounding you, in a way.
Cleaning the surface after welding is important to remove any weld spatter, slag, or impurities that can affect the appearance and performance of the weld. It also helps improve the weld quality by ensuring proper fusion and penetration. Additionally, a clean surface is essential for applying coatings or paint to the welded area.
Everything gets wet. =D
you
Shortening the electrode extension typically reduces weld penetration. This is because a shorter electrode extension results in a smaller arc length, which reduces the heat input into the weld and leads to less penetration. It is important to maintain the proper electrode extension to achieve the desired weld penetration.