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Flat position welding is when your job is in a horizontal position the easiest and best position to do welding, then you get vertical up position where the trick is to weave your arc in a V formation, vertical down is used on thin material if its possible at an angle of 45 degrees last overhead that is the most difficult the opposite of flat welding where the job is upside down
anytime you look directly down on your weld joint, it is a flat weld, flat position weld are not affected by gravity, as opposed to horizontal, vertical, and overhead, all of which the puddle tends to "sag" as you weld
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What type of tip do you use to braze?
Brazing can be done with a small torch or a big soldering iron. Either electric or brazier heated. The tip on a torch should be small as you don't need the heat you use when gas welding or cutting.
Does lacquer coating on tinplate affect welding?
Yes. However, there are paints designed to be compatible with welding as they are designed to protect the surface of the plate from corrosion while in storage. In every code or specification, it is specifically stated that welding should be done on clean metal. Welding over paint is discouraged.
What must be done to prevent porosity in welding?
what must be done to prevent this from happening
The majority of SMAW welding is done using what two polarities?
DC-
How can you select the current values for welding?
The amount of current (amps) is controlled by the user. It's done with a variable resistor. Another thing to note is whether you are welding constant current or constant voltage. If you are welding constant current, the voltage will vary and a set Amp measure will remain constant. With constant voltage, the current will vary and that's determined by the resistance. Constant voltage should be an easier set up. I'm not 100% sure but most stick welding is constant current, which is why increasing the arc length produces more heat, because more arc length should increase the resistance, which would cause the welding machine to increase voltage to keep the current constant.
What type of tip do you use to braze?
Brazing can be done with a small torch or a big soldering iron. Either electric or brazier heated. The tip on a torch should be small as you don't need the heat you use when gas welding or cutting.
What is the meaning of welding electrode E6010?
E - Stands for Electrode 60 - 60,000 tensile strength. 1 - in all position welding can be done 0 - cellulose
How do you do orgon welding?
orgon welding is done with orgon torch or filler wire.
Does lacquer coating on tinplate affect welding?
Yes. However, there are paints designed to be compatible with welding as they are designed to protect the surface of the plate from corrosion while in storage. In every code or specification, it is specifically stated that welding should be done on clean metal. Welding over paint is discouraged.
What should be done to prevent a person from falling from height while working on radial drilling machine or while welding at height by sitting on shell and welding the nozzle the height around 4 mtr?
4000ft
What must be done to prevent porosity in welding?
what must be done to prevent this from happening
Where do you prefer arc welding?
Almost all welding today is done with electricity (Arc Welding) even on cast iron. SMAW, GTAW, GMAW etc. --AW means Arc Welding.
What is the meaning of all welding positions?
Welding is often done on structures in the position in which they are found. Techniques have been developed to allow welding in any position. Some welding processes have all-position capabilities, while others may be used in only one or two positions. All welding can be classified according to the position of the workpiece or the position of the welded joint on the plates or sections being welded. For Fillet welds, following are the welding positions defined: 1. Flat (1F) 2. Horizontal (2F) 3. Vertical (3F) 4. Overhead (4F) For Groove welds, following are the welding positions defined: 1. Flat (1G) 2. Horizontal (2G) 3. Vertical (3G) 4. Overhead (4G) 5. Flat 1G 6. Horizontal 2G 7. 5G position 8. 6 G position ANS BY: Vijay Hemgude. Pune (India)
The majority of SMAW welding is done using what two polarities?
DC-
Can weldding cast iron?
in order to do welding of CI first it is pre-heated and then welding is done on it and after this very slow cooling is done by putting it in pit and then covering with mud due to this CI retains its ductility
What welding is done on railways?
For more information on the railway welding questions, you can find them here: http://exam2win.com/online-tests/rrb-question-papers.jsp.
What do welding engineering?
I will be graduating this fall with my welding engineering degree. The majority of welding engineers will be making sure that a quality weld is established on a certain product. This is done by working with welders, training, qualifications, code work,..ect
