The principle of operation of the gas welders metal is located on the control of three-burner las namely, unit eating wire, and power source. Welders burner will guide this electrode, and gas flow welding protected work together with the composition eating speed wire
working gas pressure and protected according to good welders.

Unit eating function to set the wire-speed flow with the appropriate thickness and weld connection. Source of energy supply to function according to the flow welding. The amount of flow varies depending on the thick-slim plate that will go through and welders position.
There are 3 metal removal mode that occurred in the weld metal that is a gas dispersed axial displacement (axial spray transfer), globular, and short connect (short circuiting transfer).

Axial dispersed and globular very closely associated with the energy bow relatively high. With the exception mode to provide the transfer of dispersedon the electrode diameter is very small, scattered globular axial and usually limited to flat position and horizontal welders
plate with thickness not more than 3.2 mm. Move Hubung a short low-energy is usually limited to the plate thickness is not more than 3.2 mm and can be used to welding at all positions. Therefore in this module only discuss welders gas with the metal removal system connect short.

To produce a connection pipe and the flange of the need to
be as follows:

• What is the thickness of the weld plate
• Use the appropriate wire diameter with a plate thickness
• Use according to the flow thickness, position, and diameter
  wire
• Arrange the large flow of gas is protected in accordance with welders made to maintain stable position welding and shift speed.
• Before the welders surface of the plate must be clean of oil, oil, rust,
  and other forms of dirt and moisture from the free caused by water.

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