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!
Difference between Blow hole and pin hole porosity
Blow hole : They appear as cavities in a casting. When they are visible on the upper surface of the castings, they are cooled open blows. These blows are normally rounded and have smooth walls.
Pin hole porosity : This defect occurs in the castings in the form of pin hole porosity or gas porosity. These porosities are caused by the gases absorbed by the molten metal. The gases commonly absorbed and hydrogen, oxygen and nitrogen, the later two forming oxides and nitrides respectively. It is mainly hydrogen which is responsible for the pin hole porosity.
The various cementing materials are classified as follows. a) Argillaceous cementing materials b) Calcareous cementing materials c) Carbonaceous cementing materials Argillaceous Ma
Vacuum Investment Casting : TITANIUM INVESTMENT CASTING uses lost-wax investment tooling to cast intricate shapes in titanium, zirconium and their alloys. A wax pattern is coa
I need help in engineering mechanics questions? Do you provide homework help, Please let us know how do i get it quich time...
Asymmetric Effect In general the axis of the propeller will be inclined upwards to the direction of flight due to the angle of attack of the aircraft. This causes the dow
What is Variable Interest Rate? Interest rates which is offered by banks or financial institutions on loans or deposits which are liable to change according to circumstances. For e
Question 1 Write a long note on Professional Cultures in a ‘Golden Age' Question 2 Write a long note on the Global and Local Interrelationship Question 3 Write a long no
Shelf List Filing Shelf list reflects the arrangement of documents in the library. That is to say, the classificatory arrangement of the documents in a library can be seen th
Signal modulation Modulation involves the modification of some property of a (usually sinusoidal) carrier waveform. The process of recovering the original signal from the modul
tunnel diode
Feathering the propeller: If there is an engine failure in flight, the propeller would windmill creating drag and increasing any damage that had occurred in the engine. Feathe
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