Why same casting has different hardness and machineability
properties? One spot it is found hard for machining and
another spot soft? It is FG 260 grade for Cast Iron.
Answer Posted / preethi
uneven solidification results in different grain size and
that leads to the difference in hardness. the surface of the
cast will have finer grains due to faster solidification
(comparatively high temperature gradient) than the core.
| Is This Answer Correct ? | 10 Yes | 4 No |
Post New Answer View All Answers
What is the composition of d2?
any input on how to spec out(if possible) a larger grain structure(3/8" or larger) on a Al 6061 forging material.
does any one has gate solutions of 2007,08,09 metallurgical engg papers?
Why post-heating is done in alloy steel welding?
In welding, arc is too long due to ?
What is lathe bed made of ?
What is d2?
On which basis annealing cycle of steel bars of UpTo 6 MTR can be decided.we r charging 40-45 metric ton load for annealing in bogie furnace?
How to melt the solidified copper accretions in copper scrap melting furnace?
sir please send me previous question papers on metallurgy at vishal.nitrr07@gmail.com .....thank you
Explain super alloys?
Which type of key is used between shaft and pulley?
What are the materials used to manufacture Aeroplane Wings?
Discuss the basic functionioning of air conditioner.
Is it possible to use metallurgical inverted microscope to other designation?