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!
METAL TRANSFER IN CO2 WELDINGIn CO2 welding, two distinct types of metal transfers are identified viz. short circuiting transfer and free flight globular transfer.Short Circuit Transfer: When the welding voltage and the current are low, the mode of metal transfer would be of short circuiting type. In short circuiting mode, metal transfer occurs from tip of the wire electrode to the job whenever the wire tip touches the weld pool. The arc is extinguished during the short circuit period and is re-ignited after the short circuit is cleared. Short circuiting transfer is used for joining thin sheets, welding out of position and root pass welding of tubes and pipes.Free Flight Transfer: When the arc voltage and current are high, the metal droplets are transferred non axially as large globules and this is called non axial free flight transfer. The non axial free flight transfer produces deep penetration. Hence, this mode of transfer is used for welding thick sections in down hand and horizontal positions.
Question: (a) (i) Describe the difference between intrinsic and extrinsic semiconductors. (ii)Is it possible for compound semiconductors to exhibit intrinsic behaviour? Desc
The differential manometer (shown below) is used to measure the pressure difference between two vessels. Derive the equation for the pressure difference (pA - pB) in terms of the l
Initial Graphics Exchange Specifications (IGES) The basic concept of IGES is concerned with the exchange of product description data from one CAD system to another one. The CAD
models of CIM
What is the difference between von-mises and maximum principal stress? What is axisymmetric, plane stress, and plane strain modeling? What is difference between a beam, spar,
Q. Design evacuation systems for plant? The plant will have designated Muster areas where personnel can go during an emergency and be accounted for and from which they can then
Explain the universal drilling machine The universal drilling machine, in this machine the arm itself can be rotated by a desired angle along a horizontal axis. This is in addi
(a) Illustrate self-locking and self-energizing brakes. (b) The diameter of the drum is 250mm and the angle of contact is 90 o , If the operating force of 700 N is applied at th
(a) Describe the terms "Fluid jet" and "Vane" in Fluid Machine. (b) What is impulse - momentum principal in analysis and design of turbo machines.
(a) Derive a mathematical expression to determine the efficiency of Bell Coleman Cycle. (b) A dense air refrigeration cycle acts between pressures of 4 bar and 16 bar. The air t
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