Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
WELD PREPARATION: Joint Tolerance & Cleaning
Joint Tolerance
The allowable tolerance of joint dimensions depends upon whether the welding is to be done manually or by mechanised means. Manual welding applications can tolerate greater irregularities in joint fit up than mechanised welding. The particulartolerance of a given application can be determined only by actual testing, and this tolerance should be specified for future work.
Cleaning
Cleanliness of both the weld joint areas and the filler metal is an important consideration when welding with the gas tungsten arc process. Oil, marking crayon,grease, shop dirt, paint, & rust or corrosion deposits all must be removed from the joint edges and metal surfaces, to a distance beyond the heat affected area. Their presence during welding might lead toarc instability and contaminated welds containing pores, cracks and inclusions. Cleaning may be accomplished by mechanical means, by the use of vapour or liquid cleaners, or by a combination of these. Organic solvents like carbon tetrachloride should not be used as any trace of it coming under the arc may lead to the formation of phosgene, a toxic gas. Acetone may be used.
Q. Inlet channel of the exchanger? The inlet channel of the exchanger shall be designed to minimize flow turbulence and erosion of the refractory liner and the tube inlet area.
Determine the critical load (W crit ) to cause elastic instability of the rigidly jointed frame shown in Figure Q2. The frame members have constant bending stif
You as design Engineer, Describe how you would decide a suitable factor of safety for the design of a new mechanical elements. Illustrate the importance of aesthetic considerati
Q. Show the Geometric Similarity? When model is required to provide an aid merely for visualisation, scaler reproduction of form is sufficient which is termed Geometric Similar
truss problems
A square column 410 x 410 mm (along with 4 No. 16 mm bars) carries a dead load of 1020 kN and an imposed load of 410 kN. The foundation soil has a safe bearing capacity of 200 kPa.
A rectangular block of material is subjected to stresses 65N/mm 2 (tensile) in x- direction and 35 N/mm 2 (tensile) in perpendicular direction. It is accompanied by shear stress
concept of cascade sysytems
A parallel plate capacitor is charged to a total charge Q and then the battery is removed. A slab of material with dielectric constant ? is inserted between the plates. (Justify y
its definition, principle, explanation, application, and a diagram
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd