Welding Flashcards
What are some advantages of gas shielding arc welding
The weld is stronger, more ductile and corrosion resistant
Which method of welding is likely to cause buckling or warping of thin metal sheets
Tig welding
What is the purpose of shielding an arc weld with an inert gas
The gas prevents atmospheric oxygen and nitrogen from contaminating the weld
What is a common method of controlling expansion when welding a joint
Place tack welds along along the length of the joint
What type of flame is used when torch brazing and silver soldering
A natural flame
What is the purpose of the flux used with bronzing and silver soldering
The flux cleans the base metal by removing any oxide film
What just be done to soldering iron tip to increase the amount of heat transferred from the tip to the work
The tip must be clean of all contaminates and properly tinned
What is the preferred method of welding aluminum
Tig welding
What precautions must be observed in order to weld titanium
All traces of oxygen and nitrogen must be kept away from the weld area
Describe one type of repair that could be made to dented steel tube cluster joint
A formed steel patch plate can be attached to damaged area
How can a soft flame be obtained without reduced the heat output of the torch
Use a larger tip and adjust the gas pressure accordingly
What factors determine the amount of heat delivered by a gas welding torch
The size of the torch tip and the gas pressure
When oxyacetylene torch is extinguished which valve is turned off first
Turn of the acetylene gas valve first
When a gas welding project is completed what safety precautions should be accomplished
All the valves are turned off and the gas pressure are relieved
What should be done to a heat treated aluminum part after welded repairs are completed
The part must be re-heat treated
