Posted in Welding Engineering

Classification of Welding Processes #SecondPart

Continued From … Welding is a process of joining similar metals by application of heat with or without application of pressure and addition of filler material. The term “weldability” has been defined as the capacity of being welded into inseparable joints having specified properties such as definite weld strength, proper structure, etc. There are several factors that affect the weldability i.e. Melting Point, Thermal conductivity, Thermal Expansion, Surface condition, and Change in Microstructure. There are basically two types of welding, Plastic Welding and Fusion Welding. Plastic Welding: In Plastic welding or pressure welding, the pieces of metal to be joined are…

Posted in Welding Engineering

Classification of Welding Processes #FirstPart

Welding is a process of joining similar metals by application of heat with or without application of pressure and addition of filler material. The term “weldability” has been defined as the capacity of being welded into inseparable joints having specified properties such as definite weld strength, proper structure, etc. There are several factors that affect the weldability i.e. Melting Point, Thermal conductivity, Thermal Expansion, Surface condition, and Change in Microstructure. There are basically two types of welding, Plastic Welding and Fusion Welding. Plastic Welding: In Plastic welding or pressure welding, the pieces of metal to be joined are heated to plastic…

Posted in Welding Engineering

Oxy-Acetylene High Pressure System

Oxyacetylene welding is a fusion-welding process. The coalescence of metals is produced by an oxygen-acetylene flame; Extreme heat is concentrated on the edges or on the edge and surface of the piece of metal being joined until the molten metal flows together. The type of joint design determines whether a filler metal should be used to complete the weldment or not. Filler metal is added by inserting it into the molten puddle of the base metals. The puddle then solidifies, after cooling making the weld bead. The extremely high heat depends on the mixture of two types of gaseous substances,…