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 Mechanical Engineering

Types of Welding and Welded Joints

Welding is a process of joining similar metals by application of heat, with or without application of pressure, with or without adding the filler material, with or without using flux. The welding processes generally used are classified into two main groups: (a) Pressure Welding (b) Fusion Welding or Welding without Pressure PRESSURE WELDING In pressure welding, the surfaces to be joined are heated to a plastic state. Then forced together by external pressure to make the joint. This process is used in Forge Welding, Resistance Welding and Pressure Thermit Welding. FUSION WELDING OR WELDING WITHOUT PRESSURE In fusion welding, the…