free download underwater welding seminar ppt

Underwater Welding

Welding is an unavoidable process of modern engineering ? civil, electrical, mechanical, automobiles, marine aeronautical ? in all branches. It is used in fabrications and erections in infrastructures and installations. It joins metals or thermoplastics. Forming a pool of molten mass ? the weld puddle ? and allowing it to cool to become a strong joint is the basis of the process of welding. For repairing to be carried out underwater, there is a separate process. That is called un ....etc

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underwater welding schools india

Learning underwater welding is a key part of our Commercial Diver Program where Divers Institute of Technology teaches the best divers to perform to the highest standards, while never compromising safety underwater. Commercial diving is a competitive industry. DIT trains divers for underwater welding in a world-class commercial diving program.

Divers Institute Training Lets Divers Work World-Wide
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Underwater welding refers to a number of distinct welding processes that are performed underwater.

The two main categories of underwater welding techniques are wet underwater welding and dry underwater welding, or hyperbaric welding.

In wet underwater welding, a variation of shielded metal arc welding is commonly used, employing a waterproof electrode. Other processes that are used include flux-cored arc welding and friction welding. In each of these cases, the welding power supply is connected to the welding equipment through cables and ....etc

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Abstract:
in this project we set the interval time and buzzer time through keypad. An internal clock will run inside the controller which will turn on the buzzer at the desired time periods. PC interface is provided so as to send the data to the computer and viz versa
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