Essay About Welding

The first evidence of welding dated all the way back to the bronze age. The first people that found out how to weld were the Egyptians the Egyptians were smart enough to figure out how to weld. In the 19th century they figured out they could use acetylene for welding. A Englishman named Edmund Davy is the one that discovered acetylene in 1836. Then in 1880 Auguste De Meritens figured out how to fuse two lead plates together from the heat generated by an arc.

In 1900 Strohmenger introduced coated metal electrode. It’s a coated lime which helped the arc be much more stable. P.O. Nobel invented atomic welding in 1920. Atomic welding was used for repairing and modeling metals.

“The Industrial Revolution was another of those extraordinary jumps forward in the story of civilization” (Stephen Gardiner). One of the major parts of the industrial process has to do with metal production. Welding has been incorporated into the framework of metalworking. Welding dates back to the middle ages where forge welding processes were used to make tools and weapons, commonly known as blacksmiths. It is known that the Egyptians used forms of welding to make gold tools, jewelry, and decoration.

Welding was invented in the 1900s but lets go back a little to middle age that was when blacksmithing was the best method to use before welding. Now Edmund Davy of England was the one who discovered acetylene in 1836. Some of the others inventors were Auguste De Meritens who worked on how heating of an arc can join two pieces of metal, C.L. Coffin was one one who created a welding process with an electrode. There was other people that helped make welding more efficient.

The objective of this proposal is to give information on the plan of the project about the mechanical behaviours of TIG welded joints in stainless steels, regarding on the research facilities, equipments, materials and the methods that will be followed and used during the preparation of this project. 1. TIG Welding TIG welding, which was developed in late 1920's and perfected in early 1940's, is a commonly used high quality welding process and has become a popular choice of welding processes when high quality, precision welding is required and nearly all metals can be welded by using this process. The main application areas of TIG welding can be mentioned as naval industry, i... ... middle of paper ... ...ks Management plan of the project depending on the duration of activities can be also seen in the figure below. Figure – This chart indicates the management plan of the project 5.

He also did significant work in electrochemistry, stating the First and Second Laws of Electrolysis. This laid the basis for electrochemistry, another great modern industry. The research that established Faraday as the foremost experimental scientist of his day was, however, in the fields of electricity and magnetism. In 1821 he plotted the magnetic field around a conductor carrying an electric current; the existence of the magnetic field had first been observed by the Danish physicist Hans Christian Oersted in 1819.

Through the years of modern science many people have come and gone making contribution to science whether it be chemistry physics or another scientific field. Some people were able to produce accomplishments in multiple fields including chemistry. Marie Curie was able to make contributions in physics and chemistry just as Nobel was an engineer and a chemist in the form of creating dynamite. Finally the man of physics Michael Faraday was able to make a contributions to chemistry that are still being used to this day. On November 7, 1867 Marie Curie was born Maria Salomea Sklodowska to parents Wladyslaw Skodowski and Bronislaw Sklodowska in Warsaw Poland.

As old as 5000 years, in the time of the Pharaohs, they used this method to make gold jewellery, armour and statues. Around 4000 B.C, the discovery that metals could be cast into shapes in moulds was a major step towards civilisations. After experiments with coloured minerals like malachite, those experiments let to the melting of copper which led to casting copper in simple moulds made from stone or clay to produce simple tools, like hammers, to be followed by the use two-part moulds in which both faces could be made. Potters at that time were used to making small human and animal figures representing either natural or symbolic use for numerous gods. The smelting and casting of those figures were carried out in a crude kiln or furnace in the east.

The first electrical kettles that used heating elements were introduced in 1891 by the Carpenter Electric Company of Chicago. The Ceramic kettle became widely used during world war two as metal used for the kettle was in short supply thus making ceramics the best material for kettles during that time not only this but because of the excellent properties ceramics. The production of a kettle involves many materials and machines to manufacture it. The kettles manufactured today are made with many other materials other than what was used 50 years ago. Today kettles are made using materials such as plastic, copper, stainless steel and may other products such as rubber and high resistance metals for the heating element.

“The first definite statement is by Thales of Miletus who said lodestone attracts iron because it has a soul” (Fowler). The lodestone or leading stone is a naturally magnetic stone, which was believed to have magical powers at one point. This marks one of the earliest understandings of electromagnetism. Genuine attempts to explain the naturally occurring phenomenon of electromagnetism were made and expanded throughout the following years by many, but more notable are Galen, a famous anatomist and doctor, and Pliny, a Roman natural philosopher. Both provided clues to help link a distinction between electricity and electromagnetism.