This category of articles contains some of the commonly welded metals in the industry, their properties, methods of testings to determine their properties, and welding consumables used to weld these base metals with various welding processes.
The electrodes used in flux-cored arc welding are made up of a flux core, surrounded by a metal sheath. The primary function of flux at the core of the wire is to provide shielding to the arc from the oxidizing gases in the atmosphere such as oxygen and nitrogen. The metal sheath accounts for 75 … Read more
Welding consumables are an important part of welding. Having a quality electrode in hand is vital to the quality of joint to be made. In this article, we shall see some aspects of electrodes and filler rods used for welding. The most authoritative classification of welding consumables has been done by American Welding Society (AWS). … Read more
The classification system for SMAW electrodes is identical between AWS (American Welding Society) and ASME BPVC. In this article, we shall take reference from ASME BPVC Section II Part C for studying various electrode classification. The SMAW electrodes are classified under the following specifications in ASME Section II Part C. SFA 5.1: specification for carbon … Read more
Magnesium is a very light weight metal. It has good machinability and corrosion resistance. When alloyed with small quantities of other metals such as aluminum, manganese, zinc, zirconium, etc., its’ properties can be further improved to sit a variety of applications. It also has a very low melting point. However, magnesium is a very reactive … Read more
High Hardness Alloy Steels, include a large number and variety of high strength, high hardness, corrosion-resistant alloy steels, which have been developed with other special properties. Most of these steels depend on a special heat treatment process in order to develop the desired characteristic in the finished state. Alloy steels have greater strength and durability than other … Read more
Non-consumable electrodes are the ones that don’t get consumed during the welding process. An examples of such electrodes is the tungsten electrode used in the gas tungsten arc welding process. Another example is the carbon electrode used in the carbon arc welding process. In this article, we shall discuss in brief about these two non-consumable … Read more
Copper and alloys derived from copper have unique properties that make them suitable for wide-ranging applications in the industry. Especially, the high electrical conductivity of copper makes it suitable for extensive usage in electrical applications. Welding copper is easy if just one understands its behavior. Some copper alloys have good corrosion resistance as well. In … Read more
Cast iron is an alloy of iron and carbon. The carbon content in cast iron varies from 1.7% to 4.5%. In this article, we shall see a few aspects of welding of cast iron. Types Of Cast Iron Gray cast iron is the most widely used type of cast iron. It has a high percentage … Read more
Titanium is a useful metal that is used in a wide variety of applications due to its’ excellent properties. It has low density, has good strength, has a lustrous silvery appearance, and has excellent resistance to corrosion. Welding titanium is considered a difficult prospect; however it can be done by following the requisite cleanliness guidelines. … Read more
The welding consumables in the welding process come in a variety of forms. For shielded metal arc welding, the filler comes in the form of a flux covered stick electrode. For flux-cored arc welding, it comes in the form of spooled wires that have flux at the core, and a metal sheath around it. In … Read more