The welding’s problems and inventions, Year by year welding history. Complete with timeline, facts, pictures, and descriptions.

Weld April 2, 2021

Projection welding process It is a set of resistance welding processes wherein Unionization is produced by the heat received from resistance to electric current flow through the work parts held together under pressure by electrodes. The projection welding process is very similar to the spot welding process. Multiple welds are made in each operation, whether […]

Weld January 25, 2021

Welding of Plastic    Preface                   The concept of plastic welding is nearly eight decades old when German chemists and technicians began a strict search for substitute materials in 1933 due to a shortage of non-ferrous metals. Two years later, in 1935 polyvinyl chloride became available on an […]

Weld November 2, 2020

Ultrasonic welding   The Ultrasonic welding process is a type of solid-state welding process wherein welding is done by the local application of high-frequency vibratory energy to workpieces, held together under pressure. Introduction Ultra Sonic Welding is a solid-state welding process. Its first use began around the 1960s with toy making. Ultrasonic welding is a solid-state […]

Weld June 13, 2020

Stick electrode Stick electrode (used in manual metal arc / shielded metal arc welding) is a core wire in various sizes and thicknesses, over which the flux coating is coated. Stick Welding The stick welding process is usually defined as Manual Metal Arc Welding. In this method, stick electrodes are used to combine metals. Therefore, […]

Weld May 24, 2020

Stick welding Usually stick welding is known as SMAW welding process wherein a flux-coated stick electrode is used to fill the joint. In this process, the electrode is used as a filler metal (consumable electrode), also carries the electric current to obtain desired heat. Stick welding is used for the welding of most common metals and […]

Weld April 19, 2020

Stainless steel is also known as corrosion-resistant steels. Due to its versatility, durability, and affordability, its use is steadily growing worldwide. Welding of Austenitic stainless steels Stainless steel welding techniques differ from carbon steel or alloy steels. Austenitic stainless steels show the following differences compared to common carbon steels: In austenitic stainless steels the electrical […]

Weld February 10, 2020

As we know that Tig Welding is a fusion welding process and the arc is generated by an electric power source, where many tools are required… First in essential tools Welding Machine A welding machine is the first necessary device to provide a source of heat for welding operations. It can be a transformer aided […]

Weld January 6, 2020

WELDING STANDARDS, A review: The welding standards have been in use for a long time. It mainly developed in 1898, when A group of scientists and engineers, led by Charles Dudley, formed ASTM in Originally called the “American Society for Testing Materials” welding standards’ purpose was to address and prevent the frequent rail breaks and […]

Weld April 11, 2021

Atomic Hydrogen welding The atomic hydrogen welding process is an arc welding process wherein, welding is carried out by heating the work, with an electric arc between two tungsten electrodes. Hydrogen gas acts as a shielding gas in this process. In this process, the filler metal is used depending on the requirement of the workpiece. […]

Weld January 17, 2021

Seam welding is a resistance welding process wherein coalescence is produced by heating the job with an electrical resistance (obtained by an electric current (flow) through work parts) held together under pressure by circular rolling electrodes on the fraying surface. Seam welding Usually, an overlapped resistance-spot weld is produced by Resistance seam welding. In this […]

Weld November 23, 2020

Braze welding process Braze welding process is a method of joining materials together where a non-ferrous filler metal with a melting point, below that of the base metal but above (427 0C )is used. By this process, a groove fillet plug or slot weld can be welded easily. Brazing and Braze welding process There is […]

Weld November 14, 2020

Arc spot welding process Arc spot welding is an electric arc process where the welding process is carried out at zero arc travel speed. wherein coalescence is produced by heating an electric arc between a tungsten or tungsten alloy electrode and two closely fitted surfaces.   Welding operation: Arc spot welding is basically a TIG […]

Weld October 1, 2020

INTRODUCTION The welding stresses introduced into the structures due to welding sometimes increase to higher values ​​as the yield strength of the material.. The problem of welding stress was not taken seriously until the construction of large structures by fusion welding. However unwanted internal stresses may reduce the endurance limit of individual parts. But these […]