Welding: History of Welding Plan Copyright © Texas Education Agency, 2012. All rights reserved.

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Presentation transcript:

Welding: History of Welding Plan Copyright © Texas Education Agency, All rights reserved.

B.C. Chinese produced cast iron (Casting)- pour a liquid into a mold and let it harden (guns, tools, cannons, etc.) Copyright © Texas Education Agency, All rights reserved.

B.C. Copper widely used in Middle East (known as Bronze Age) Use of iron brought Bronze Age to an end Copyright © Texas Education Agency, All rights reserved.

B.C. Iron workers made a product similar to modern steel by forging (Forging)- Metal heated to a plastic stage then hammered together (swords, weapons, lances, etc.) Copyright © Texas Education Agency, All rights reserved.

in Germany (Striking an arc)- to join metals using electric fusion Copyright © Texas Education Agency, All rights reserved.

UNT in partnership with TEA, Copyright ©. All rights reserved. 6 Late 1800`s Rivets –Eiffel Tower –Bridges –Titanic Copyright © Texas Education Agency, All rights reserved.

7 Early 1900`s Development of an economical method of producing pure oxygen mixed with acetylene allowing heating metal to a high enough heat to melt Copyright © Texas Education Agency, All rights reserved.

8 World War I Era First patent issued for a covered electrode Arc-welding methods used to weld ship hulls and make armaments Copyright © Texas Education Agency, All rights reserved.

9 Late 1930`s/Early 1940’s During World War II advancements were made in welding technology Ships all welded Good quality coated electrodes made it possible to weld most metals to be welded Copyright © Texas Education Agency, All rights reserved.

10 Modern Era New processes developed for specialized needs in a variety of industries Copyright © Texas Education Agency, All rights reserved.