Advantages and disadvantages of welded joints?

Answer 1

M.I.G.

and M.A.G.S.

Advantages

1) Higher welding speeds
2) Greater deposition rates
3) Less post welding cleaning (e.g.

no slag to chip off weld)
4) Better weld pool visibility
5) No stub end losses or wasted man hours caused by changing electrodes
6) Low skill factor required to operate M.I.G

/ M.A.G.S

welding torch
7) Positional welding offers no problems when compared to other processes. (Use dip or pulsed mode of transfer)
8) The process is easily automated
9) No fluxes required in most cases
10) Ultra low hydrogen process

M.I.G.

and M.A.G.S.

Disadvantages

1) Higher initial setup cost
2) Atmosphere surrounding the welding process has to be stable (hence the shielding gasses), therefore this process is limited to draught free conditions
3) Higher maintenance costs due to extra electronic components
4) The setting of plant variables requires a high skill level
5) Less efficient where high duty cycle requirements are necessary
6) Radiation effects are more severe

Answer 2

SHOEB CHOUHAN

Advantage and disadvantage of welded connection

Advantage

1.

No holes are made in the structural parts therefore , effective section of members is not reduced as in bolting

2.

The structure has less weight compared to bolted connections

3.

It provide complete rigidity at the joints.

4.

Joints of any shape can be made.

5.

Welding process is quick and save time of construction

6.

Welded connection give batter appearance to the structure.

7.

Noise pollution is minimum.

8.

Offers water tight and air tight joint of plates and hence used in fluid retaining structure.

9.

Weld connection are cheap in cost.

10.

Welding offers air tight and water tight joints.

11.

Welding required size of gusset plates is also smaller because they reduce punching.

Disadvantage

1.

Welded joint are brittle and have less fatigue strength.

2.

Welding required skilled labor.

3.

Costly equipment is necessary to make connection.