WELDING PROCEDURE AND PERFORMANCE QUALIFICATION

A total quality assurance scheme, embracing all aspects of manufacture would have necessarily made all attempts to ensure qualification of all the resources with respect to a specified work environment. Right from raw material delivery conditions, to the commissioning of  product, all the facilities and systems including man power are subjected to listing and approvals are obtained by conducting qualifying tests, whenever necessary.

General Requirements as Specified in Contractual Documents

Depending on the type of construction,  the broad welding procedure specifications are usually drawn. A list of general parameters observed for such qualifications are listed below:

1. Scope of work and code by which the work is covered, etc.
2. Welding processes employed.
3. Base metals specifications and applicable type, classification and composition of filler rods and weldment.
4. Type of current and current range.
5. Welder qualification requirements
6. Joint designs and tolerances.
7. Joint preparation and cleaning of surfaces for welding.
8. Tack Welding.
9. Joint welding details
10. Position of welding involved at factory and at site.
11. Preheat, interpass and post heat temperatures.
12. Peening.
13. Heat input electrode run length.
14. Post weld heat treatment.
15. Repair of welds.
16. Inspection quantum and stages acceptance levels.

 

Posted Date: 9/18/2012 1:11:05 AM | Location : United States

Ask an Expert

Related Discussions:- Welding procedure and performance qualification, Assignment Help, Ask Question on Welding procedure and performance qualification, Get Answer, Expert's Help, Welding procedure and performance qualification Discussions

Write discussion on Welding procedure and performance qualification
Your posts are moderated

Write your message here..

Related Questions

Calculate the net positive suction head, Calculate the Net Positive Suction... Calculate the Net Positive Suction Head A pump station has been designed to lift water out of a 6 metre deep pit (vented to atmosphere) via a centrifugal pump mounted at groun

Fluid mechanics, Flow through pipes in series and parallel Flow through pipes in series and parallel

Illustrated about the term bending moment, Illustrated about the term bendi... Illustrated about the term bending moment? Bending Moment The critical section for bending moment for masonry or concrete block walls is half-way between the centre line and

#title.cutting tool life, what is relation between tool life and cutting sp... what is relation between tool life and cutting speed?

Determine the force, Determine the force: Determine the force P needed... Determine the force: Determine the force P needed to start block B illustrated in Figure moving to the right if the coefficient of friction is 0.3 for all surfaces of contact.

Performance criterion of a steam power plant, Performance criterion of a st... Performance criterion of a steam power plant: Sol. :   The design of power plant can be determined largely by the consideration of capital cost and operating cost; the forme

Austempering, Austempering: The component to be hardened is initialy ... Austempering: The component to be hardened is initialy austenised and after that quenched into a lead or salt bath held at just over the martensite transformation temperature

Example of wedge friction, Example of Wedge friction: T wo blocks A... Example of Wedge friction: T wo blocks A and B are employed to raise load of 2000 N resting on another block C by the application of force P as shown in the figure g

Determine change in length of the bar, Determine change in length of the ba... Determine change in length of the bar: A steel bar is subjected to loads as shown the given figure. Determine change in length of the bar ABCD of 18 cm diameter. E = 180

Explain the single cast component auger, Explain the Single Cast Component ... Explain the Single Cast Component Auger Material for Single Cast Component Auger: Either Ni-Cr or Cast iron Length of components: 1250 mm. Outer Diameter of Auger compone