In gas welding, a flame supplies necessary heat for fusing the base metals. Similarly, in arc welding, an electric arc supplies necessary heat. While joining two components by either gas welding or arc welding, the flame or arc can be moved towards the direction of weld progression or opposite to the direction of weld progression. Based on the relative position of the weld bead (puddle) and flame/arc, welding technique can
Oxy-fuel gas welding is one fusion welding process where components are permanently joined together. Here heat is supplied by burning a suitable gaseous carbonaceous fuel with oxygen. Potential fuel oxy-fuel gas welding incudes acetylene, propylene, propane, MAPP (methylacetylene-propadiene propane) gas, and natural gas; however, acetylene (C2H2) is frequently used as it offers maximum flame temperature. Both the fuel and oxygen are stored separately in cylinders, and these are mixed in
Welding is one joining process where two or more components can be joined permanently with or without the application of heat, pressure, and filler metal. All welding processes can be broadly divided into two categories – fusion welding and solid-state welding. In fusion welding, heat must be applied to melt down the connecting surfaces of the parent component for coalescence or weld bead formation. In solid-state welding, no such melting
Gas Metal Arc Welding (GMAW) is one fusion welding process where an electric arc is constituted between a consumable electrode and the base metals. This arc supplies necessary heat to melt down the faying surfaces of the base plate to form the coalescence. The GMAW electrode comes in the form of a small diameter wire having very long length that is wound in a wire-pool. During welding, this wire electrode
In every arc welding process, an electric arc is constituted between the electrode and the conductive base metals. This arc supplies necessary heat to fuse the faying surfaces of the base plates. There are several arc welding processes, namely, manual metal arc welding, gas metal arc welding, gas tungsten arc welding, flux core arc welding, submerged arc welding, etc. Each process has unique characteristics and offers several benefits compared to
Joining can be performed either mechanically or chemically. A mechanical joint can be either temporary and permanent. A temporary joint is one that gives the provision of easy and quick dismantling of joined parts without rupturing them, whereas a permanent joint does not allow dismantling of assembled parts without breaking them. Weld joint and rivet joint are considered as permanent joints; while thread joint, cotter joint, knuckle joint, etc. are
In manufacturing industries, joining of two or more components is indispensably necessary for assembly purposes. Joining makes the production system more reliable, efficient and profitable. In fact, joining can be defined as one of the manufacturing processes by which two or more solid components can be assembled together with or without the application of external elements such as filler, strap, heat, pressure, etc. There exist various joining techniques in order
Welding is one of the manufacturing processes by which two or more similar or dissimilar materials can be joined permanently by coalescence formation with or without the application of external pressure, heat or filler material. When external heat is applied to fuse faying surfaces it is termed as fusion welding; otherwise it is called as solid state welding. During fusion welding, filler material can be applied externally to fill the
Like welding, riveting is also one permanent joining process used for mechanical assembly of two or more solid components. In riveting, arrays of through holes are first drilled on the components in pre-defined locations. Additional strap plates, if used, are also drilled in the corresponding locations. Rivets of specific dimension are then inserted via these holes. The diameter of the drilled hole on the components is larger than the shank
Joining is a part and parcel in manufacturing as it is used to assemble two or more solid components either permanently or temporarily. Although a permanent joint does not allow disassembly of parts without rupturing them, it has immense demand in assembly as it can provide a strong, leak-proof and inherently anti-loose joint. Welded joint and riveted joint are two commonly used permanent joining processes; however, now-a-days riveted joints are
Joining is one of the manufacturing processes by which two or more components can be assembled together to unify them. There exists a wide variety of such joining processes to fulfill the need of assembling various components in several ways. Broadly, these processes can be classified into two categories—permanent joining and temporary joining. A permanent joint is one where the jointed components cannot be dismantled easily without rupturing them, while
