Welding procedure and performance qualification, Mechanical Engineering

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







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
Related Questions



Plot the root locus diagram for a system whose open loop transfer function is Evaluate the range of values for K for system to be stable.

Second Gear Position: When gear M2 on the main shaft is in mesh with gear C2 on the countershaft then this is known as second gear position. To rotate free gear M2 with the m

(a) Derive the mathematical equation for work done in a polytropic process (i.e.) PV n =c) (b) A mass of gas is compressed in a quasi-static process from 80KPa, 0.1m 3 to 0.4M

Distinguish between microscopic and macroscopic approaches. Describe thermodynamic system. Differentiate between closed system, open system and an isolated system.

Explain the Semi-Automatic Extension of screw conveyor "Semi-Automatic Extension of screw conveyor as per the screed width by telescopic-tube" Procedure: The extension of

A copper tube 1.2 m long, has 80mm internal diameter and 2 mm wall thickness. It has closed ends, and is filled with water under pressure. What will be the alteration of pressure i

Necessity of Suspension System Not to transmit road shocks to the motorcycle components. To guard the driver from road shocks and to make sure the stability of the ve