Welding procedure specification (wps)-variables, Mechanical Engineering

Assignment Help:

Variables used in WPS

Depending on their influence on obtaining a desired weldment, the welding variables are then classified and listed. Some of them are listed as "Essential variables", some of them as "Supplementary Essential variables" and the others as "Non Essential Variables".

Essential variables


Essential variables when changed beyond the allowable limits while welding, alter the prescribed weld properties. Hence, production welds with such altered variables should not be continued without requalification and certification.

Supplementary essential variables


Still more number of variables from the above list are declared as essential in case where a procedure qualification is applied for eg. a weldment going for notch toughness applications. These are called supplementary essential variables.

Non essential variables


Those welding variables which when changed during welding (within logical limits) do not cause to alter the desired weld properties. They are just altered in the WPS. Hence production welds with such altered parameters could be continued without any requalification of the welding procedure.


Related Discussions:- Welding procedure specification (wps)-variables

QFD chart and engineering specifications, Deliverables: A QFD chart, sh...

Deliverables: A QFD chart, showing the relationships between the customer requirements and the engineering specifications. (Refer to the Ullman QFD chart posted on My

Explain rate pressure product, Q. Explain Rate Pressure Product? The sy...

Q. Explain Rate Pressure Product? The systolic blood pressure is multiplied by the heart rate to provide the double product or modified fusion time index. On presence of an obs

Thermodynamic properties , Q= In an investigation of the thermodynamic prop...

Q= In an investigation of the thermodynamic properties of alpha-manganese,the following heat contents determined H 700  - H 298 = 2895 cal/g-atm H 1000 - H 298 = 5450 cal

Actual vapour compression cycle, diffrence between actual and idealactual v...

diffrence between actual and idealactual vapour compression cycle

Draw shear force diagrams for the overhanging beam, Draw shear force diagra...

Draw shear force diagrams for the overhanging beam: Draw shear force & bending moment diagrams for the overhanging beam illustrated in Figure Figure  Solution

Hardenability of steel, The hardened layer depth is the measure of harden-a...

The hardened layer depth is the measure of harden-ability. A good harden-ability will sense even thicker sections are uniformly hardened. Conversely a poor harden-ability will gene

Sketch stress-strain diagram for mild steel, Sketch stress-strain diagram f...

Sketch stress-strain diagram for Mild Steel in tension and also describe the important points. Also draw stress-strain curve for cast Iron, concrete and for elastic rubber only.

Reduce system to a single force - mechanics, Reduce system to a single forc...

Reduce system to a single force: Q: A system of parallel forces is acting on rigid bar as shown in the figure given below. Reduce this system to  a single force

Calculate the vertices for a translated triangle, A triangle PQR with verti...

A triangle PQR with vertices P(2,1), Q(4,4) , R(1,3) is to be translated by 2 units in x - direction and 4 units in y direction. Using the homogenous coordinate system, calculate t

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd