Already have an account? Get multiple benefits of using own account!
Login in your account..!
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!
POWER SOURCES FOR ARC WELDING
Electric arc welding processes constitute a majority of all the welding processes. Most of the weldable materials can be joined by arc welding. Due to the versatility of arc welding processes they are employed in many product areas. It would be worthwhile, hence, to know better about arc welding process principles, equipments and applications. The one important equipment that is significant for arc welding processes is the welding power source.NECESSITY FOR A SEPARATE WELDING POWER SOURCEEventhough, electric arc can be struck with higher voltages (100 - 200 V), it is not recommended to use directly an industrial power connection (440 V / 230 V) for welding, for the following reasons. The arc struck with a higher voltage will be inconveniently large and long. Hence, the manipulation of the arc will be difficult to achieve welding. Moreover, the energy loss of such an arc will be uneconomically high making the welding process inefficient in power. The most important reason is that historically the manual arc welding was developed first, hence the safety of the welder for reducing the risk of electric shock hazard, necessitated a separate welding power source to give reduced operating arc voltages. A welding power source converts the input voltage to a conveniently reduced safe operating voltage. Arc struck with such a power supply will be small and can be easily guided and manipulated.
Q. Show drain systems used in plant? Process/power plants usually have a variety of different drain systems to collect the different types of liquid effluent. One of these is u
need help with reports on thin thick and combined cylinder theory
a) Describe Industrial Engineering. Discuss its scope and use in service and manufacturing industries. b) Deriving the stop watch study in a machine shop, ten observation of a d
Molecular Structure The polymers have three distinct arrangements of molecular chain, hence resulting in three structures. In amorphous structure the molecular chain are ar
COATED ELECTRODES AND THEIR CLASSIFICATIONS Welding technology has changed tremendously over the past decades. Its application is found in all sectors of industries, smaller or l
Can you explain the principal on which a torsion Dynamometer works ? Illustrate with details the evaluation involved in finding the power transmitted.
Mechanical failure is one of the most important factors causing component/structure/product no longer fit for its intended purpose. Use examples to explain at least three modes o
The intensity of loading on a simply supported beam of 5m span increases uniformly from 8KN/m at one end to 16KN/m at the other end. Determine the position and magnitude of the max
Diode: It allows the current to flow in one direction only and offers infinite resistance in other direction. It rectifies the alternating current that is why we call it rectifie
Planning of Railway Stations and Facilities Provided: The planning of railway stations should cover the following aspects: (a) The site selected should be easily ac
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