Welding With Pressure. A microscopic view in which external pressure is applied at room temperature to cause substantial of two mating surfaces deformation and welding gets completed. HPW A hot inert gas applies the pressure inside a pressure vessel ie.
The photo to the right shows a comparison of the new and used electrode tips in spot welding of galvanized steel sheets. 4 Welding Pressure Regulator Parts Process. The severe conditions of high current and pressure during resistance welding expose the electrode tips at a high risk of degradation.
Most welding methods involve the use either of heat alone fusion welding or a combination of heat and pressure.
The heat may be supplied by electricity or by a gas flame. The process is also called solid-state welding. The principle involves pressing the parts of the workpiece together with such force that plastic deformation causes any residual oxide layers to be pressed out and a metallic bond to be made. HPW A hot inert gas applies the pressure inside a pressure vessel ie.