Welder World Blog

Posts Tagged ‘joint’

Welding rod is commonly known as filler metals in context with the technical terms. It is considered as a metal which is used for the welding procedure in order to fill up a joint that needs to be fixed together. Generally, the overall procedure of welding is done by melting up the work pieces and adding up a filler material in it, which is often a welding rod. This is done in order to create a pool of molten material that cools down and becomes a strong joint.

Also known as electrodes, welding rods usually come in four types, that involve covered welding rods which is used in the system of metal arc welding. The coating involved in the process of electrodes mainly contains certain compounds such as calcium fluoride, cellulose, iron powder and rutile. The method of rutile coated rods give a good appearance to the weld and create good quality weld. Even large number of stainless steel rods or electrodes are used in order to weld steel work pieces with the carbon steel work pieces.

Bare welding electrodes, on the other hand are used for the gas metal arc work. These kinds of electrodes contain several deoxidizing metals like silicon, manganese, titanium, and aluminum that help prevent oxygen porosity. Moreover, they even contain some sort of denitriding metals such as titanium and zirconium for avoiding the nitrogen porosity. Such rods are generally available in the diameters that range from 0.7 mm to 2.4 mm. However, it is largely determined by the kind of metal and application.

In addition, the method of tubular welding rods, that are in the wired form, are usually used for the flux-cored arc welding. These rods contain the alloys of mild and low alloy steel, stainless steel, and high nickel. Some are even made from wear-facing or surfacing alloys. What is more is that welding rods can also be divided as fast-fill and fast-freeze electrodes. Fast-fill rods are designed in order to melt quickly, while the fast freeze rods are designed to solidify quickly. It is therefore, very important to make use of proper welding rod in the welding process as it is the major factor that will determine the nature of the joint.

Step by step instructions on how to MIG weld a puddle joint with expert tips on using MIG welders in this free welding video clip. Expert: Mike Rogers Bio: Mike Rogers has over 30 years of welding experience. He was initially trained by haulage construction company Crane Fruehauf. Filmmaker: Anthony Rutland

Maybe it’s a tack weld and the gas doesn’t hit the weld fast enough?