Welding processes, Mechanical Engineering

Q. Show the Welding processes

The following welding processes are permitted:

Shielded Metal-Arc Welding (SMAW) - Do not use SMAW for the root pass of single side groove welds except for carbon steel.

Gas Tungsten-Arc Welding (GTAW).

Automatic Submerged-Arc Welding (SAW-AU):

a) The flux used shall be "neutral" and shall not contribute alloying elements to the weld.

b) The flux-wire combination used for production welding shall be the same brand name and type as used for procedure qualifications.

c) Maximum weld deposit per pass shall be 12.7 mm (1/2") for carbon steel (P-1) and 10 mm (3/8") for all other materials.

Flux-Cored Arc Welding (FCAW) will not be permitted unless otherwise authorised by the OWNER.

Gas Metal-Arc Welding (GMAW) shall be used only in spray transfer mode. Pulse arc is considered spray transfer. Spray transfer mode shall not be used for root pass.

The Short Arc transfer mode is acceptable for carbon steel materials up to and including 3/16 inch (5 mm) thick and for the root pass in carbon steel material of any thickness with the following provisions:

a) Vertical welding is done in the uphill progression.

b) The root pass is back-gouged.

c) GMAW-S is not used on branch connections, o-let, socket type welds, or pipe less than or equal to 3 inches (75 mm) OD.

Plasma-Arc Welding (PAW) for hard surfacing and overlaying.

Welding processes other than those listed above require specific approval by the OWNER and shall not be assumed as acceptable by the Seller during bid preparation.

Posted Date: 7/9/2013 12:43:31 AM | Location : United States







Related Discussions:- Welding processes, Assignment Help, Ask Question on Welding processes, Get Answer, Expert's Help, Welding processes Discussions

Write discussion on Welding processes
Your posts are moderated
Related Questions
State of motion of body change with force: A body on contact with the surface is being pulled along it with the increasing force from zero. How does the state of motion of bo


detals of type of form tool?



Consider laminar flow in a circular tubewith a fully developed velocity profile.Let the heat be added at a constant rate along the tube from  x+ =0  to  x+ =0.10 . Thereafter ,let

Di fferentiate between strength of material and engineering mechanics Sol.: Three primary areas of mechanics of solids are statics, dynamics and the strength of materials.

Which conducts heat faster steel copper or brass? Ans) Copper conducts heat faster than steel or brass. Any material that is good for conducting heat is also good for electricit

In a nuclear power plant saturated steam at 30 bar enters a h.p. turbine and expands isentrophically to a pressure at which its quality is 0.841. At this pressure the steam is pass

Find out the mechanical advantage of the machines: A lifting machine may lift 800 N by the application of 100 N. Distance moved by the effort is 100 cm. At the same time load