Welding

Question 1

Fusion Welding

Answer 1

Coalescence is achieved by melting the two parts to be joined, in some cases adding filler metal to the joint
Examples - arc, resistance spot welding, oxygen-fuel gas fusion welding

Question 2

Diffusion welding

Answer 2

Only the welding filler melts and it diffuses into the solid parent parts

Question 3

Solid state welding

Answer 3

Heat and/or pressure are used (plastic state) to achieve coalescence, but no melting of base metals occurs and no filler metal is added
Examples - Forge welding, friction welding

Question 4

Five types of welds

Answer 4

Surface, Groove, Fillet, Plug, Slot

Question 5

Groove Welds

Answer 5

Used to fuse the sides or ends of two piece metal, The primary use of groove welds Is to complete butt joints

Question 6

Fillet welds

Answer 6

They have a triangular cross section and are used to fuse two faces of metal that are at 90 degree angles to each other

Question 7

Tig

Answer 7

Tungsten inert gas, Tungsten electrode is very slowly consumed,

Question 8

Wrought Iron

Answer 8

Nearly pure form of iron with a very low carbon content, softer and more malleable than steel