welding

Definitions of welding according to DIN (Deutsche Industrie Normen) is a metallurgical bond at the junction of metals or metal alloys are carried out in a melted or liquid state. In other words, welding is the local connection of some metal rod using heat energy. In this connection the process is sometimes accompanied by pressure and additional material (filler material)

Simple welding technique has been discovered within the period between 4000 to 3000 BC. Once the electrical energy used with ease, advanced welding technology with the rapidly that it becomes something that advanced switching techniques. Up to now been used more than 40 types of welding.

In the preliminary stages of development of welding technology, welding is usually only used on the connections of the repair is less important. But after going through a lot of experience and practice and a long time, so now the use of welding processes and the use of construction-konsturksi welding is common in all countries in the world.

The realization of the standards of welding techniques will help broaden the scope of the use of welded joints and increases the size of building construction that can be welded. With the progress made to date, welding technology plays an important role in modern industrial society.

Classification of welding

Judging from the heat source. Welding can be distinguished three:

• Mechanics

• Electricity

• Chemical

Meanwhile, according to the way of welding, can be divided into two major parts:

• Welding pressure (Pressure Welding)

• Welding Liquid

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