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The angle of the torch or tungsten electrode like that used in Tig welding , or the MiG stinger, or any consumable rod like that of a 7018 rod used in SMAW welding. All run a little bit cooler of a puddle of molten metal when held at an angle. When feeding rod material into a vertical joint going in the upwards direction this lends it self to better fill and penetration in the joint. More filler rod is going to be deposited into the weld joint going in the upward direction then if one is welding in the downward direction on a vertical pass on any piece of material, also at an angle the puddle is a going to run a little cooler. When the electrode, stinger or torch is held directly held over the base material this changes the molten pools temperature to a slightly higher temperature .when holding a gas flame torch and using the back handed method the enveloping surrounding flame helps keeps the material's temperature higher in the weld joint area, that was just welded, higher temps after the welding process to allow for slower cooling,which can have a beneficial effect. When the Speed or feed rate of the welding rod or wire is feed to fast into the molten puddle or the movement of the rod, stinger or torch is feed to fast across the material to quickly and the delutement of the rod into the base material and the welds surrounding area around the weld bead will then be an incomplete or cold weld it will form on the base metal, which can leave undercut or lack good fusion or good penetration a poor weld is typical, this is not the desired result. When welding is performed by the human hand, one should not speed through the welding process , focus and care on the molten puddle and its conditions during the welding process and being certain of good penetration is more important then how fast one welds.
What else can I help you with?
What is fillet welding?
A fillet weld is the joint of 2 pieces of material, usually at a 90 degree angle. see http://www.unified-eng.com/scitech/weld/fillet.html
What is a dogleg offset pipe?
Type your answer here... Generally its a non-enginered angle in a piping weld joint occurring in the axial run of pipe.
Three condition of electrode that could affect weld bead shape in sheilded metal arc welding?
The angle of the electrode, the speed of the electrode used to weld and the size of the electrode.
How would you avoid the occurrence of porosity or slag on weld?
Correct current,travel speed, electrode angle, arc length
What is the difference between weld and joint?
joint can be defined as two metals pieces come togather,this can be inform of flat. while in weld the joint is made by fuse both pieces togather
What is filleted?
A fillet weld is the joint of 2 pieces of material, usually at a 90 degree angle. see http://www.unified-eng.com/scitech/weld/fillet.html
What is icicles in pipewelding?
Icicles in pipewelding refer to the formation of unwanted protrusions or drips of weld metal that hang off the weld bead. This can happen due to improper welding techniques or settings, such as using excessive current, incorrect angle, or improper travel speed. Icicles can weaken the weld joint and should be avoided to ensure the quality and integrity of the weld.
What is fillet welding?
A fillet weld is the joint of 2 pieces of material, usually at a 90 degree angle. see http://www.unified-eng.com/scitech/weld/fillet.html
What is the meaning of filet weld?
The word fillet is used to describe a radius or angle at the joint of an angle instead of a shrap corner. It is sort of like when you use caulk to fill in the sharp corners when you are making a counter top. In a fillet weld you contact both peices of metal being joined at the 90 degree angle to "fill in" the joint.
What are two effects that joint design has on the completed weld?
I am not sure but I would assume two things about joint design and its effect on the weld and visa versa: penetration and overall strength of the weld would depend greatly on what grove you are welding in or on and the amount of distortion would vary greatly depending on how large of root opening and weld size etc.
Why is it important to strike the arc only on the weld joint?
why is it important only to strike the arc in the weld joint
What is a dogleg offset pipe?
Type your answer here... Generally its a non-enginered angle in a piping weld joint occurring in the axial run of pipe.
Three condition of electrode that could affect weld bead shape in sheilded metal arc welding?
The angle of the electrode, the speed of the electrode used to weld and the size of the electrode.
How would you avoid the occurrence of porosity or slag on weld?
Correct current,travel speed, electrode angle, arc length
When a flanged corner joint is specified the other side of the edge weld symbol is often a(n) weld symbol.?
When a flanged corner joint is specified, the other side of the edge weld symbol is often a groove weld symbol. This indicates that a groove weld is required on the opposite side of the joint to ensure proper joint strength and integrity. The combination of both weld types helps to achieve a robust connection in the assembly.
What is a Autogenous weld joint?
It is a weld made by melting the edges of the materials to be joined, but adding no filler metal to the weld.
What is partial penetration joint?
A partial penetration joint is a type of weld joint where the weld does not fully penetrate through the thickness of the materials being joined. This results in the weld metal being only partially through the joint rather than completely through. It is often used when full penetration is not required for the application.
