Mechanical Engineering - Workshop Technology - Discussion

47. 

The ferrous metals require more machining allowance than non-ferrous metals.

[A]. True
[B]. False

Answer: Option A

Explanation:

No answer description available for this question.

Pravin Patil (Pp) said: (Mar 10, 2016)  
@Pravin.

Why more machining allowance require for ferrous metal?

Sohel said: (Jul 16, 2016)  
In ferrous metal, the casting gets oxidized in the mold during heat treatment and scales is formed, which has to be removed, due to which machining allowance is given in casting using ferrous metal.

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