Applications of co2 welding, Mechanical Engineering

APPLICATIONS OF CO2 WELDING

CO2 welding is extremely useful for joining thin sheets of thickness range 1.0 to 2.0 mm because it is possible to keep the heat input low to avoid excessive melting and yet ensure adequate fusion. This is achieved by selecting a combination of wire diameter, current and arc voltage which allows the use of a stable short circuiting arc. Butt, lap and fillet joints can be made successfully in all positions. Butt welds can be made with or without backing. For unbaked joints up to 1.2 mm thick, close butted joints are preferred. For thicker sheets from 1.2 to 3.0 mm, a root gap of 0 to 1 mm is preferred depending on position and sheet thickness.

The CO2 free flight or open arc welding with a deposition rate of 4 to 7 kg / hr is well suited for welding of steel plates of thickness 6 mm or greater. Horizontal & vertical fillets up to 6 mm leg length can be made in one pass and square butt welds in plate upto 6 mm can be welded with one pass either side. For single or double sided welds of 6 mm thickness and upwards a suitable joint preparation is recommended. CO2 welding is also extensively used for welding of wide range of pipe sizes and applications such as process pipe work and oil / gas pipelines.

Posted Date: 9/17/2012 2:27:35 AM | Location : United States







Related Discussions:- Applications of co2 welding, Assignment Help, Ask Question on Applications of co2 welding, Get Answer, Expert's Help, Applications of co2 welding Discussions

Write discussion on Applications of co2 welding
Your posts are moderated
Related Questions
The joint bevels shall be prepared in accordance with the registered and approved weld procedure. Internal and external surfaces to be welded shall be clean and free from paint, o

have assignment in FEM calculation and ANSYS are you able to solve this kind of assignment


what is crippling load in column and strut

example of 2nd corollary of first law of thermodynamics

what is coriolis component of acceleration?

SHIELDING GASES Shielding gas is directed by the torch to the arc and weld pool to protect the electrode and the molten weld metal from atmospheric contamination.  Argon

Ask question explin opiz code #Minimum 100 words accepted#

Explain Principal Process for Abrasive Jet Cutting Machines Abrasive particles are fed from the hopper in to the mixing chamber by regulating device as shown in figure.

If Engine Misfires Causes of Problem Remedy Incorrect Electrode gap of spark plug Electrode worn out Foule