Welding is a process of union between two or more parts of materials where it is united using heat or pressure or both.
The welding’s types, applications, and invention
Welding is a process whereby two or more parts are connected through heat or pressure or both. It is used to weld all types of metals, thermoplastics and wood also.
Welding technology started when human civilization was in the stone and wood era and founded an element buried in clay that was somewhat shiny and different. Humans started their experiment with it and it was used for ornaments, food utensils, and weapons.
Origin of welding
Welding is an ancient art that initially became popular as an art, but with human development, It also developed and it has taken the form of science in modern times.
The method of joining metals together began around 4000 BC, from Egypt and its surrounding areas. It began with copper and then expanded into bronze, silver, gold, and iron. Since copper was found as an ore at that time, its use was limited to only domestic use items and hunting weapons.
Initially, the joining of metals was done through pressure welding and lap joint. Later, new processes of welding also developed as other metals were discovered. [See more]
The use of bronze was initiated between 3000 and 2000 BCE. During the Bronze Age, small golden circular boxes were simultaneously pressure wed Lap joint was made by joints. It is believed that its first use began in the area of Egypt.
Specific processes and techniques about welding, materials, consumables, and many other topics, related to it, are discussed here.
Types of welding processes
Several welding and brazing types are being applied by industries along with many soldering methods and may be classified on the source of heat, or the type of interaction.
Here they are classified based on their work.
- Arc Welding Process
- Gas welding Process
- Resistance Welding Process
- Solid-State Welding Process
- Thermo-Chemical Process
- Radiant Energy Process
Common applications of welding
It has been employed in the industry as a tool for:
Regular fabrication of automobile cars,air-crafts, refrigerators, etc
Repair and maintenance work, such as joining broken parts, rebuilding worn-out components, etc.
The common applications are listed below:
a. Welded engine mounts.
b. Turbine frame for jet engine
c. Rocket motor fuel and oxidizer tanks.
d. Ducts, fittings, cowling, components, etc.
(a)Arc welded car wheels.
(b) Steel rear axle housing.
(c) Frame side rails.
(d) Automobile frame brackets, etc.
(a) Pier construction
(c) Shop and field assembly of lengths, etc.
(a) Column base plates.
(c) Erection of structure,etc.
Pressure vessels and Tanks:
(a)Clad and Lined steel plates.
(c) Joining of the nozzle to the shell, etc.
(a) Oil gas and water storage tank.
Rail Road Equipment:
- Air receiver
- Front and rear hoods, etc.
Pipings and pipelines:
(a) Rolled plate piping
(b) Open pipe joints
(c) Oil, gas and gasoline pipelines, etc.
(a) Shell frame
(b) Deck beams and bulkhead stiffeners.
(c) Girders to shells.
(d) Bulkhead webs to plating, etc.
10 – Trucks and trailers.
11 – Machine tool frames, cutting tools and dies.
12- Household and office furniture.
13- Earthmoving machinery and cranes.