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!
ARC INITIATION
Touch StartWith the power supply energised and the shielding gas flowing through the cup, the torch is lowered toward the workpiece until the tungsten electrode makes contact with workpiece. Then torch is suddenly withdrawn a short distance to establish the arc. The benefits of this method of arc initiation is its simplicity of operation. The demerits of touch starting isthe tendency for the electrode to stick to the workpiece, causing electrode contamination and transfer of tungsten to the workpiece.
High Frequency StartHigh frequency starting can be used with DC or AC power sources for both manual and automatic applications.Very High frequency generators usually have a spark gap oscillator that superimposes a high voltage AC output at radio frequencies in series with the welding circuit. The high voltage ionises the gas between the electrode and the work and the ionised gas will then conduct welding current that initiates the welding arc.
What is raft foundation? A raft or mat can be considered as a combined footing which covers the entire building area and supports all columns and walls. Such a foundation may c
General Resource Models In computer controlled scheduling, material, machine handling equipment, tooling and buffer space should be comprised. The explicit consid
Q. What is Warm extrusion? • Warm extrusion is done above room temperature, but below the recrystallization temperature of the material the temperatures ranges from 424 to 975
Q. Selection of Electrodes and Filler Metals? Only low hydrogen electrodes shall be used for SMAW of all carbon and low alloy steels, except for root pass welding of single wel
HOW TO PREPARE A DRAWING IN FIRST ANGLE PROJECTION AND THIRD ANGLE PROJECTION AND WHAT IS THEIR BASIC PRINCIPLE AND WE DO NOT MAKE DRAWING IN 2ND ANGLE PROJECTION AND 4TH ANGLE PRO
A suspended walkway in an underground cavern consists of a deck supported by three tie rods placed symmetrically about the centre as shown below: The rods are each of
The attached figure depicts an indirectly fired gas turbine engine. In the gas turbine engine, air is compressed to a high pressure and then heat is added. The high pressure, high
WHAT IS LOAD CARRYING CAPACITY ISMB 250 OF 1.2 MTR LENGTH. PL REPLY
digram of michelson inteferometer
Functions of the Piston To transmit force of explosion to the crankshaft. To form a seal so that high pressure gases from the combustion chamber do not escape into th
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: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd