الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
Welding is a fastening two pieces of metal with heat and pressure so we!llillg techllical alltl sciellce~’ implemented towards assisting in building up good as well as beller decisions. Thus the development in prosperous earnings and reduction of welding errors are to be aimed to improve the lIIarille pipelines II/ul platforms weldillg.
Now to understand the welding problems of the marine pipelines and platforms and how to solve, there are fOllr major sllbjects to discussion.
The metallllrgy of we!llillg is an important consideration for any welded component because changes in the metal properties according to (the amount of heat applied - the rate of heat removed)
Weldillg Methods have many types, processes and elements blll the electric arc is widely used in pipelines and platform welding processes. Because the heat of the arc can be effectively, concentrated and controlled.
We!lling problems (WeM alld Base Metal Discolltinllities) Inspecting welding operations for discontinuities is important (Discontinuity is an interruption of the typical structure of a weldment, such as a lack of homogeneity in the mechanical, metallurgical, chemical, or physical characteristics of the material or weldment).
Solution Methods (Repair of Welding Defects) Weld qualify is an important part of the welding, so the welding inspector’s job is evaluation the Iypes of disconlinuilies according 10 slandard which defines Ihe acceplable limilS oflhal discontinuity.
Conc/lIsioll The metallurgy of welding is an important consideralionfor effects on the resulting mechanical properties of the weld and base metals. So the welding methods choice is very important. And detected the welding problems (Discontinuity) during and after the welding procedures (Weld quality according to standard and acceptable limit) is an important part of the welding to solve il