What are the dangers of TIG welding?
What is the difference between MIG welding and TIG welding?
- TIG welding is susceptible to the same type of weld defects you find in MIG welding, such as lack of fusion, burn through, crater/crater cracks, undercut and porosity in the weld metal. All these defects can occur due to improper welding techniques.
What are the causes of defects in welding?
- Defects may occur due to the following reasons; 1 Incorrect welding parameters 2 Inappropriate welding procedures 3 Poor process condition 4 Inappropriate selection of filler metal and parent metal 5 Unskilled welder or welding operator 6 Incorrect job preparations. ...
Does TIG welding break down aluminum oxide?
- As you can see, the weld did not break down the aluminum oxide layer. This created a weld where the filler metal mixed in with the partially melted oxide and created the contaminated bead seen here. To defeat this, always TIG weld aluminum with the polarity set to alternating current (AC).
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