Purposes of Welding Joint

Weld Joints Definition and purposes:
Weld joints are designed to transfer the stresses between the members of the joint. Forces and loads are introduces at different point and are transmitted different parts of weld.

Types : All weld joints classified into different types.
1) Full Penetration
2) Partial penetration Joints

Remember: When joints are subjected to dynamic loading reversing loads, and impact loads, the weld should be very efficient. Such services require full-penetration welds. The strength of weld joints not only on the size of the weld but also on the strength of the weld metal.
What is definition of Stress?
Answer: A bad form of “flexibility” called Stress.
How can you evaluate current after performing welding?
Answer: you can evaluate of current through “Ripples”. It is a best source to know that.

Metal Active Gas welding:
1) Simple edge preparation
2) 2 pass welding
3) Less wire electrode
4) No slag removal
5) High deposition rate
6) High deposition efficiency
Shielded Arc Welding:
1) V groove
2) 5 Pass welding
3) More electrode consumption

Reference by: welding books
Test positions for Lap, Butt, Scarf Rabbet Joints:
Flat Flow position:
The test joints in position suitable for applying brazing filler metal in rod, strip, or other suitable form.
Vertical down flow position:
The test joints in position suitable for applying brazing filler metal in rod, strip, or other suitable form.
Vertical Up flow position:
The test joints in position suitable for applying brazing filler metal in rod, strip or other suitable form.
Horizontal flow position:
The test joins in position suitable for applying brazing filler metal in rod, strip or other suitable form.
Tension Test:
Used to determine the ultimate strength of brazed butt, scarf, lap and rabbet joints.
Guided Bend Test:
Used to determine the degree of soundness and ductility of butt and scarf joints