What kind of shell systems are used for investment casting?
Answer Posted / siva varun
investment castings are used for casting high melting metals
to have zero allowances/draft(dimensional tolerances due to
shrinkage). Here the shell system used(mold) can only be
used once. The shells generally used are made out of wax.
The mould melts as the refractory metal solidifies.
| Is This Answer Correct ? | 7 Yes | 1 No |
Post New Answer View All Answers
How is solution annealing carried out? What type of furnace is required? Does one need to be heat in a salt bath?
What affect would increasing the charpy impact toughness on an object have on the surface of an object it strikes if all else remains the same? Would it cause moredamage to the object it strikes?
Aircraft gasturbine is made of ?
What is lathe bed made of ?
sir please send me previous question papers on metallurgy at vishal.nitrr07@gmail.com .....thank you
Why is chromium molybdenum steels used to build pressure vessels? Define what is special about the properties of chromium molybdenum steels that make them ideal for pressure vessels?
what is the strongest metal? How would a salt and water solution clean a penny but a vinegar and salt solution will not clean a penny? Define what is the cause of this?
How is metal heavy?
Which method has more procity in cast part? Which method has more strength in cast part?
Unlike materials as well as materials of different thickness can be butt welded by ?
is nickel considered a non-sparking metal?
what are the causes of scaling in cast iron, after subjecting it to annealing process.
Which pump is preferred for small discharge at high pressure?
Define what is meant by hardening ability of metals?
Which plaster is used in gold investment casting?